Re: [beagleboard] BeagleBone Black shipments

[Gerald Coley]

I have no idea. I would guess somewhere around 450,000.

Gerald


On Tue, Feb 14, 2017 at 1:48 AM, Heinz Hummel 
wrote:

> Hi,
>
> I already know the updated list of original BBB shipments from the Wiki.
> But just for my personal interest: does anybody have an idea how much BBBs
> have been shipped in total, including the ones form third party
> manufacturers like element14?
>
> Thanks!
>
> Heinz
>
>
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Re: [beagleboard] PCB based on the beaglebone black

[Gerald Coley]

How much are you looking to spend?

Gerald


On Mon, Feb 13, 2017 at 6:14 AM, Khalid Alshamkhany <
khalidalshamkh...@gmail.com> wrote:

> Hello,
>
> I would like to make a IoT PCB board based on the Beaglebone black, but
> without HDMI. I want to add a bunch of sensors, in addition to a GSM module
> etc. I am not an expert PCB designer nor I got the schematics, but I know
> what are the things that should go on the board.
>
> So, could anyone please recommend a PCB designing service that is good for
> such project?
>
> Thanks in advance.
>
> Regards,
> Khalid
>
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Re: [beagleboard] beaglebone green wireless is shutdown

[Gerald Coley]

It needs to be steady at 5V. 4V is not going to work very well. You can try
adding some bulk capacitance across the connections. Maybe 10uF to 20uF and
add a 0.1uF as well..

Gerald

On Thu, Feb 9, 2017 at 3:30 PM, felipe robles 
wrote:

>
> 
>
>
> 
> Hello Gerald.
>
> DC-DC converter is stable at five volts in almost time, but there are some
> events that looks like this picture. (voltage is under 4 volts.)
>
>
>
>
>
> El jueves, 9 de febrero de 2017, 17:32:15 (UTC-3), Gerald escribió:
>>
>> Is it exactly 5V? How much ripple is there on the 5V supply? What is the
>> power source for the DC DC converter?
>>
>> Gerald
>>
>>
>> On Thu, Feb 9, 2017 at 2:21 PM, felipe robles 
>> wrote:
>>
>>> Hello Wulf
>>>
>>> My beaglebone is powering in P9_5 and P9_6 pins from DC DC converter
>>> that supplies 5V from battery (charger controller).
>>>
>>>
>>> El jueves, 9 de febrero de 2017, 17:09:59 (UTC-3), Wulf Man escribió:
>>>
 looks like a power glitch. how are you powering this?

 On 2/9/2017 12:08 PM, felipe robles wrote:

 Hello folks

 My name is Felipe and I looking for solution or some hint to my newest
 problem.
 I got a BBGW running BeagleBoard.org Debian Image 2016-11-06. My
 project is get many measurements from differents sensors like conductivity,
 dissolved oxygen, and others. and put this values into web server using
 mobile broadband. The problem is that system is shuting down. I looking in
 log files I don't get many information. the most relevant information that
 i got is in /var/log/auth.log and says.

 Feb  9 11:06:01 beaglebone CRON[1050]: pam_unix(cron:session): session
 opened for user root by (uid=0)
 Feb  9 11:06:03 beaglebone CRON[1050]: pam_unix(cron:session): session
 closed for user root
 Feb  9 11:07:33 beaglebone login[574]: pam_unix(login:auth): check pass
 ; user unknown
 Feb  9 11:07:33 beaglebone login[574]: pam_unix(login:auth):
 authentication failure; logname=LOGIN uid=0 euid=0 tty=/dev/ttyGS0
 ruser= rhost=
 Feb  9 11:07:36 beaglebone login[574]: FAILED LOGIN (1) on
 '/dev/ttyGS0' FOR 'UNKNOWN', Authentication failure
 Feb  9 11:08:01 beaglebone sshd[1107]: Accepted password for debian
 from 192.168.7.1 port 37207 ssh2
 Feb  9 11:09:01 beaglebone CRON[1153]: pam_unix(cron:session): session
 opened for user root by (uid=0)
 Feb  9 11:09:03 beaglebone CRON[1153]: pam_unix(cron:session): session
 closed for user root
 Feb  9 11:09:23 beaglebone systemd-logind[357]: Power key pressed.
 Feb  9 11:09:23 beaglebone systemd-logind[357]: Powering Off...
 Feb  9 11:09:23 beaglebone systemd-logind[357]: System is powering down
 .



 my system have a  beaglebone green wireless, 1 PCB that feed
 beaglebone from charger controller that connect to battery and power 
 supply.

 Thanks for your attention
 Regards
 Felipe
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>>
>>
>>
>> --
>> Gerald
>>
>> ger...@beagleboard.org
>> http://beagleboard.org/
>> gco...@emprodesign.com
>>
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Re: [beagleboard] beaglebone green wireless is shutdown

[Gerald Coley]

Is it exactly 5V? How much ripple is there on the 5V supply? What is the
power source for the DC DC converter?

Gerald


On Thu, Feb 9, 2017 at 2:21 PM, felipe robles 
wrote:

> Hello Wulf
>
> My beaglebone is powering in P9_5 and P9_6 pins from DC DC converter that
> supplies 5V from battery (charger controller).
>
>
> El jueves, 9 de febrero de 2017, 17:09:59 (UTC-3), Wulf Man escribió:
>
>> looks like a power glitch. how are you powering this?
>>
>> On 2/9/2017 12:08 PM, felipe robles wrote:
>>
>> Hello folks
>>
>> My name is Felipe and I looking for solution or some hint to my newest
>> problem.
>> I got a BBGW running BeagleBoard.org Debian Image 2016-11-06. My project
>> is get many measurements from differents sensors like conductivity,
>> dissolved oxygen, and others. and put this values into web server using
>> mobile broadband. The problem is that system is shuting down. I looking in
>> log files I don't get many information. the most relevant information that
>> i got is in /var/log/auth.log and says.
>>
>> Feb  9 11:06:01 beaglebone CRON[1050]: pam_unix(cron:session): session
>> opened for user root by (uid=0)
>> Feb  9 11:06:03 beaglebone CRON[1050]: pam_unix(cron:session): session
>> closed for user root
>> Feb  9 11:07:33 beaglebone login[574]: pam_unix(login:auth): check pass;
>> user unknown
>> Feb  9 11:07:33 beaglebone login[574]: pam_unix(login:auth):
>> authentication failure; logname=LOGIN uid=0 euid=0 tty=/dev/ttyGS0 ruser=
>> rhost=
>> Feb  9 11:07:36 beaglebone login[574]: FAILED LOGIN (1) on '/dev/ttyGS0'
>> FOR 'UNKNOWN', Authentication failure
>> Feb  9 11:08:01 beaglebone sshd[1107]: Accepted password for debian from
>> 192.168.7.1 port 37207 ssh2
>> Feb  9 11:09:01 beaglebone CRON[1153]: pam_unix(cron:session): session
>> opened for user root by (uid=0)
>> Feb  9 11:09:03 beaglebone CRON[1153]: pam_unix(cron:session): session
>> closed for user root
>> Feb  9 11:09:23 beaglebone systemd-logind[357]: Power key pressed.
>> Feb  9 11:09:23 beaglebone systemd-logind[357]: Powering Off...
>> Feb  9 11:09:23 beaglebone systemd-logind[357]: System is powering down.
>>
>>
>>
>> my system have a  beaglebone green wireless, 1 PCB that feed  beaglebone
>> from charger controller that connect to battery and power supply.
>>
>> Thanks for your attention
>> Regards
>> Felipe
>> --
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Re: [beagleboard] Re: No LED light, My BBB perhaps died while running a PocketNC machine

[Gerald Coley]

 I have a little experience with this board. My first response still stands.

Gerald


On Tue, Feb 7, 2017 at 2:59 AM,  wrote:

> So I have now removed the board from the machine and plugged it in to the
> computer USB again. One fast LED blink happens when it is connected. I have
> pressed reset button, I have pressed power off. Nothing more happens. So is
> the board dead or not? There is nothing connected to the board itself only
> the USB to power it.
>
> Den tisdag 7 februari 2017 kl. 02:15:30 UTC+1 skrev Dennis Lee Bieber:
>>
>> On Mon, 6 Feb 2017 13:05:35 -0800 (PST),
>> mic...@cyto365.com declaimed the following:
>>
>> >Thanks all for great posts. Tomorrow I will start by cleaning the
>> machine from all potential leftover aluminium chips from previous milling
>> carefully. I believe that this is the most promising lead so far, a short
>> circuit in a connector somewhere. I will keep you posted here of the
>> result.
>>
>> That is also the most likely killer... A short between 5V and
>> ground
>> could overload the current capability of the regulators. A short between
>> 5V
>> and any GPIO pin could kill the main processor (3.3v except for ADC pins
>> which are 1.8V).
>> --
>> Wulfraed Dennis Lee Bieber AF6VN
>> wlf...@ix.netcom.comHTTP://wlfraed.home.netcom.com/
>>
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Re: [beagleboard] No LED light, My BBB perhaps died while running a PocketNC machine

[Gerald Coley]

I would just get another board.

Gerald


On Sun, Feb 5, 2017 at 1:44 PM,  wrote:

> Thanks Gerald for the support. So just to make sure that I have understood
> it correctly. If no LED light then no power - got that. Since the power
> source to the BBB is the USB, the problem could be with the mini USB on the
> BBB. But since the BBB shutoff during operation probably something on the
> circuitboard is most probably broken. And you suggested the CPU. Could it
> be something else or is this the most likely to get broken first? Should I
> change only the CPU or should I buy a brand new BBB just to make sure all
> is good?
>
> Thanks again for great support
>
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Re: [beagleboard] No LED light, My BBB perhaps died while running a PocketNC machine

[Gerald Coley]

If the power LED is off, then there is no power to the board. It will not
show up as a USB device without power.

Gerald


On Sun, Feb 5, 2017 at 9:55 AM,  wrote:

> It doesn't flashes, no light at all.. during operation it went down. The
> BeagleBoard doesn't show up any longer as a hard drive. I connect via the
> micro USB port, and that is the only power source for the board.
>
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Re: [beagleboard] No LED light, My BBB perhaps died while running a PocketNC machine

[Gerald Coley]

There is no fuse on the board. Sounds like you my have popped the processor
via an I/O pin. If the power LED flashes, that means the PMIC has detected
an over current condition on one of the power rails and is shutting down.

Gerald

On Sun, Feb 5, 2017 at 9:22 AM,  wrote:

> Hi all, I just run my PocketNC machine today and it suddenly stopped and
> it seems that my BeagleBoard Black (I think) just died. There is no Blue
> Light indication any longer. I have tried to unplug / plugin USB again and
> again several times. No response. I even tried to plug in the USB cable to
> another computer to make sure that the USB was not damaged on the computer.
> I also tried the USB cable for another purpose and it worked. So I actually
> think my BBB died after just 48h. But this must be rare I think. Or does
> anyone know how I can try if it actually is dead or not, other than plug in
> and out the USB? Is there any fuse on the board? Any on/off  button that
> might have gone to off? (The BBB is built in so I can not access it easily.
> But it should not need to power on and off by a switch according to my
> manual of the machine).
>
> Thanks for any help!
>
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Re: [beagleboard] Interfacing four 8-bit cameras with Beagalboard X-15.

[Gerald Coley]

If there are conflicts in the pinmux tool, you need to contact TI for
assistance. Or you can go through the TRM to determine whether the pinmux
tool is corrector not.

Gerald


On Mon, Jan 30, 2017 at 10:13 PM,  wrote:

> Hi,
> I want to interface four 8-bit cameras with my BeagalBoard X-15
> development baoard. I have gone through TI pinMux tool for pin mapping but
> i found some pin conflicts in "de","fld" pins selection in VIN ports.
> Please guide me whether these pins are useful or not.
>
> Thanks.
> Regards
> Rahul Sharma.
>
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Re: [beagleboard] Not able to boot beagle bone black from SD card

[Gerald Coley]

Does the power LED blink or does it stay on?

Gerald


On Fri, Jan 27, 2017 at 10:54 AM, sachin malhotra 
wrote:

> Hello,
>
> I am trying to boot TI SDK on beagle bone black, I followed these steps:
>
> 1. Partitioning and flashing an image on SD card using this page:
> http://processors.wiki.ti.com/index.php/Processor_
> SDK_Linux_create_SD_card_script using Virtual Box VM with Ubuntu 16.04
> and TI's - ti-processor-sdk-linux-am335x-evm-03.02.00.05
>
> 2. Remove the SD card from PC and insert it in the board, press boot
> button and plug in the USB to PC to power it on.
>
> No LED blinks except the power LED.
>
> In the SD card on my windows PC, I can see 2 files  a) MLO  b) u-boot.img
>
> I have booted the board before with Linux, went through with no issues.
>
> What could be the possible reasons here for the board not booting now?
> Please let me know if you need any other details
>
> Thanks,
> Sachin
>
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[beagleboard] AM5718 Board

[Gerald Coley]

I thought some of you might be interested in a new Kickstarter project
based on the AM5718, the little brother to the AM5728. This is a very
unique application and one that I think has a lot of legs.

Here is the link:

http://kck.st/2kdOQXS

Take a look!
-- 
Gerald

ger...@beagleboard.org
http://beagleboard.org/
gcol...@emprodesign.com

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Re: [beagleboard] Accidentally plugged 12V instead of 5V, it boots up from USB now...

[Gerald Coley]

It is totally dead.

Gerald


On Thu, Jan 26, 2017 at 7:03 AM, Foo Haa  wrote:

> I accidentally plugged 12V instead of 5V and now, it works only if powered
> through USB.
>
> Wondering, if it is ok or not...
>
> Also, when i attach 5V now and if i measure voltage on the board it shows
> around 1.7V..
>
>
> any ideas? Is it broken or not???
>
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Re: [beagleboard] Power monitoring on beagleboard X15 and availability issues

[Gerald Coley]

It does not have the power monitoring noise inducing taps.

I suggest that you order a TI EVM for that. I believe it still has those in
it.

Gerald

On Thu, Jan 19, 2017 at 9:28 AM, kamesh  wrote:

> Hello,
>
> I would like to purchase Beagleboard X15 so that I can monitor individual
> power rails (CPU, GPU and RAM) and check the power consumption of my
> algorithm using external measuring equipment. I am confused if the current
> version of X15 (Rev B1) has the current monitoring headers or any other
> easy way to monitor current for individual power rails. Or the feature has
> been removed in Rev B1. I can see that Rev A2 had it.
>
> If I need the current monitoring ability what would be my options? Should
> I buy Rev A2? If yes, from where?
>
> I investigated and found out that TI's "AM572x Evaluation Module" [1]
> might be one option. Budget is not a limitation for me. I just need the
> ease of use, community and software support.
>
> What are your recommendations? Please let me know.
>
> [1] http://www.ti.com/tool/tmdsevm572x
>
> Thank you very much for your time.
>
> Kamesh
>
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Re: [beagleboard] Issues With I2C and Beagle Board Black?

[Gerald Coley]

What is the value of your pull up resistors on SCL and SDA?

Gerald


On Wed, Jan 11, 2017 at 9:53 AM, George Faraj  wrote:

> Both with the BBB and the BBBW I have been unable to detect any I2C
> devices. both have Debian 8.6 images (the most recent one I believe).
>
> My device is properly wired with the CL going to P9_19 and DA going to
> P9_20 and I used a multimeter to ensure its powered properly.
>
> I've tried all the I2C pins on the BBB and whenever I run i2cdetect -y -r
> #  (my i2xdetect-tools is the most recent) all I get is either a blank
> matrix with a couple of UUs or a completely blank matrix.
>
> I am a beginner and I get the feeling that what I am missing is something
> very basic, if anyone else has been having this issue please let me know
> how you solved it!
>
> The i2c devices Ive tried are: HTU21D temp and humidity sensor, and an
> ADS1015.
>
>
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Re: [beagleboard] Re: BeagleBoard-X15 production board update

[Gerald Coley]

http://elinux.org/Beagleboard:BeagleBoard-X15#BeagleBoard-X15_Distributors

Keep looking at the above link.

Gerald

On Mon, Jan 9, 2017 at 9:09 PM, Don Miller 
wrote:

> Is there an update on upcoming availability this quarter?  It looks like
> things have dried up...
>
> Thanks,
> Don
>
>
> On Thursday, October 20, 2016 at 9:21:41 AM UTC-4, Specialcomp wrote:
>>
>> Special Computing has stepped up as lead distributor offering both A2 and
>> B1 versions plus related accesories.
>> https://specialcomp.com/beagleboard/x15.htm
>>
>> Special Computing
>> 1-480-818-5745 <(480)%20818-5745>
>>
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Re: [beagleboard] Clock running slow when gpio0[11] pulled high

[Gerald Coley]

That is the correct document. It is there, at least for now.

Gerald

On Wed, Jan 4, 2017 at 5:19 PM, Justin Pearson <justin.pear...@gmail.com>
wrote:

> Thanks Gerald! Did I reference the correct version (CircuitCo's GitHub)?
>
> -Justin
>
> On Wed, Jan 4, 2017 at 3:15 PM, Gerald Coley <ger...@beagleboard.org>
> wrote:
>
>> That brings tears to my eyes seeing someone quoting the manual.
>>
>> Yes, don't screw up the SYS_BOOT pins.
>>
>> Gerald
>>
>>
>> On Wed, Jan 4, 2017 at 5:12 PM, Justin Pearson <justin.pear...@gmail.com>
>> wrote:
>>
>>> Expanding Chad's comment, in the Beaglebone Black System Reference
>>> Manual (Rev B, Jan 20, 2014)
>>>
>>> https://github.com/CircuitCo/BeagleBone-Black/blob/390c46a03
>>> e039661aeca6eab22e6c383d8d537f8/BBB_SRM.pdf
>>>
>>> "Figure 39. Processor Boot Configuration" in "Section 6.8 Default Boot
>>> Options" says that the top two bits of the SYSBOOT register,
>>> SYSBOOT[15:14], seem to select which oscillator is used (19.2MHz, 24MHz,
>>> 25MHz, 26MHz).
>>>
>>> "Figure 38. Processor Boot Configuration Design" shows that SYS_BOOT14
>>> and 15 are physically lcd_data14 and 15.
>>>
>>> "Table 12. Expansion Header P8 Pinout" shows that lcd_data14 and 15 are
>>> GPIO0[10] and GPIO0[11] in MODE0.
>>>
>>> Section "8.1.1 LCD Pins" contains the warning:
>>>
>>> "These pins are also the SYSBOOT pins. DO NOT drive them before the
>>> SYS_RESETN signal goes high. If you do, the board may not boot because you
>>> would be changing the boot order of the processor."
>>>
>>> In Fig 39, I see that SYSBOOT[15:14] == 01b results in 24 MHz, whereas
>>> 11b results in 26MHz, whose 8% difference may account for your ~5 sec
>>> offset per minute. (If 24MHz is the default, I'm not sure.)
>>>
>>> Best,
>>> Justin
>>>
>>>
>>>
>>> On Wednesday, January 4, 2017 at 5:12:24 AM UTC-8, cmbaker3 wrote:
>>>>
>>>> Johan,
>>>> That pin is used during the boot operation.
>>>> Check in the SRM for the default boot options.
>>>>
>>>> On 1/4/2017 5:39 AM, Johan Ribenfors wrote:
>>>>
>>>> We've recently found a strange problem.  Repeatable across all eleven
>>>> boards we've tried so far.
>>>>
>>>> When pin 32 on P8 (gpoi0[11]) is pulled high via a resistor on boot,
>>>> the clock on the BBB runs ~7000 seconds slow a day. (~5 seconds a minute)
>>>>
>>>> If the pin is pulled low or left floating on boot, the clock keeps time.
>>>>
>>>> The device tree overlay was set to 0x37 for this pin - fast slew,
>>>> output, pullup, mode 7, but changing this has no effect.
>>>>
>>>> We were using Debian 7.9 with various programs installed, a few device
>>>> tree overlays applied and a custom cape when we noticed this, but it's
>>>> still the case using the Debian 8.6 image with no modifications, no dto and
>>>> no cape.
>>>>
>>>> We haven't been able to find anything online and don't really know
>>>> where to start looking.
>>>>
>>>> Any ideas?
>>>> --
>>>> For more options, visit http://beagleboard.org/discuss
>>>> ---
>>>> You received this message because you are subscribed to the Google
>>>> Groups "BeagleBoard" group.
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>>>> an email to beagleboard...@googlegroups.com.
>>>> To view this discussion on the web visit https://groups.google.com/d/ms
>>>> gid/beagleboard/e0647cb0-ac27-44ed-a11b-a6f71b7ef077%40googlegroups.com
>>>> <https://groups.google.com/d/msgid/beagleboard/e0647cb0-ac27-44ed-a11b-a6f71b7ef077%40googlegroups.com?utm_medium=email_source=footer>
>>>> .
>>>> For more options, visit https://groups.google.com/d/optout.
>>>>
>>>>
>>>>
>>>> --
>>>> Chad Baker Memphis, TN
>>>>
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Re: [beagleboard] Clock running slow when gpio0[11] pulled high

[Gerald Coley]

That brings tears to my eyes seeing someone quoting the manual.

Yes, don't screw up the SYS_BOOT pins.

Gerald


On Wed, Jan 4, 2017 at 5:12 PM, Justin Pearson 
wrote:

> Expanding Chad's comment, in the Beaglebone Black System Reference Manual
> (Rev B, Jan 20, 2014)
>
> https://github.com/CircuitCo/BeagleBone-Black/blob/
> 390c46a03e039661aeca6eab22e6c383d8d537f8/BBB_SRM.pdf
>
> "Figure 39. Processor Boot Configuration" in "Section 6.8 Default Boot
> Options" says that the top two bits of the SYSBOOT register,
> SYSBOOT[15:14], seem to select which oscillator is used (19.2MHz, 24MHz,
> 25MHz, 26MHz).
>
> "Figure 38. Processor Boot Configuration Design" shows that SYS_BOOT14 and
> 15 are physically lcd_data14 and 15.
>
> "Table 12. Expansion Header P8 Pinout" shows that lcd_data14 and 15 are
> GPIO0[10] and GPIO0[11] in MODE0.
>
> Section "8.1.1 LCD Pins" contains the warning:
>
> "These pins are also the SYSBOOT pins. DO NOT drive them before the
> SYS_RESETN signal goes high. If you do, the board may not boot because you
> would be changing the boot order of the processor."
>
> In Fig 39, I see that SYSBOOT[15:14] == 01b results in 24 MHz, whereas 11b
> results in 26MHz, whose 8% difference may account for your ~5 sec offset
> per minute. (If 24MHz is the default, I'm not sure.)
>
> Best,
> Justin
>
>
>
> On Wednesday, January 4, 2017 at 5:12:24 AM UTC-8, cmbaker3 wrote:
>>
>> Johan,
>> That pin is used during the boot operation.
>> Check in the SRM for the default boot options.
>>
>> On 1/4/2017 5:39 AM, Johan Ribenfors wrote:
>>
>> We've recently found a strange problem.  Repeatable across all eleven
>> boards we've tried so far.
>>
>> When pin 32 on P8 (gpoi0[11]) is pulled high via a resistor on boot, the
>> clock on the BBB runs ~7000 seconds slow a day. (~5 seconds a minute)
>>
>> If the pin is pulled low or left floating on boot, the clock keeps time.
>>
>> The device tree overlay was set to 0x37 for this pin - fast slew, output,
>> pullup, mode 7, but changing this has no effect.
>>
>> We were using Debian 7.9 with various programs installed, a few device
>> tree overlays applied and a custom cape when we noticed this, but it's
>> still the case using the Debian 8.6 image with no modifications, no dto and
>> no cape.
>>
>> We haven't been able to find anything online and don't really know where
>> to start looking.
>>
>> Any ideas?
>> --
>> For more options, visit http://beagleboard.org/discuss
>> ---
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>> "BeagleBoard" group.
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>> email to beagleboard...@googlegroups.com.
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>> gid/beagleboard/e0647cb0-ac27-44ed-a11b-a6f71b7ef077%40googlegroups.com
>> 
>> .
>> For more options, visit https://groups.google.com/d/optout.
>>
>>
>>
>> --
>> Chad Baker Memphis, TN
>>
> --
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Re: [beagleboard] U-Boot overlays (HERE BE EVIL DRAGONS, AND THEY BE HUNGRY) ;)

[Gerald Coley]

I set them to moderated. Let's see what happens.

Gerald


On Wed, Dec 28, 2016 at 7:41 PM, Robert Nelson <robertcnel...@gmail.com>
wrote:

> On Wed, Dec 28, 2016 at 7:33 PM, Gerald Coley <ger...@beagleboard.org>
> wrote:
> > Well, I don't know. Seems like some people will set an out of office and
> > respond with Spam. I guess this is a new thing.
>
> they show up as:
>
> "chao.ruth via BeagleBoard <beagleboard@googlegroups.com>"
>
> So they must be coming thru the web interface.
>
> Regards,
>
> --
> Robert Nelson
> https://rcn-ee.com/
>
> --
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Re: [beagleboard] U-Boot overlays (HERE BE EVIL DRAGONS, AND THEY BE HUNGRY) ;)

[Gerald Coley]

Well, I don't know. Seems like some people will set an out of office and
respond with Spam. I guess this is a new thing.

Gerald

On Wed, Dec 28, 2016 at 7:31 PM, evilwulfie  wrote:

> why does this person repost these emails without adding any comments ? ?
>
> On 12/28/2016 5:44 PM, chao.ruth via BeagleBoard wrote:
> > 
> > On Thu, 12/29/16, William Hermans  wrote:
> >
> >  Subject: Re: [beagleboard] U-Boot overlays (HERE BE EVIL DRAGONS, AND
> THEY BE HUNGRY) ;)
> >  To: beagleboard@googlegroups.com, "Robert Nelson" <
> robertcnel...@gmail.com>
> >  Date: Thursday, December 29, 2016, 1:27 AM
> >
> >  Anyway, this is
> >  pretty slick. How long do you figure it'll take before
> >  this functionality come into the default uboot ?
> >
> >  On Wed, Dec 28, 2016
> >  at 9:36 AM, William Hermans 
> >  wrote:
> >  Robert,
> >
> >  Have you created a script that removes all the
> >  unnecessary kernel modules loaded superfluously at boot ? I
> >  mean there are a lot of them, and I'd say that 99% of
> >  them in most cases will just be wasting a lot of memory . .
> >  .
> >
> >  On Wed, Dec 28, 2016
> >  at 9:34 AM, William Hermans 
> >  wrote:
> >  Ok so from a fresh emmc flashing( slightly
> >  modified rootfs on the flasher image)
> >
> >  debian@beaglebone:~$ rm /uEnv.txt
> >  rm: cannot remove '/uEnv.txt': No such file or
> >  directory
> >
> >  debian@beaglebone:~$ sudo apt-get update
> >  debian@beaglebone:~$ sudo apt-get install git
> >
> >  debian@beaglebone:~$ cd
> >  /opt/scripts/tools/developers/
> >  debian@beaglebone:/opt/scripts /tools/developers$ git
> >  pull
> >  debian@beaglebone:/opt/scripts /tools/developers$
> >  sudo ./update_bootloader.sh --use-beta-bootloader
> >  debian@beaglebone:/opt/scripts /tools/developers$
> >  sudo reboot
> >
> >  U-Boot 2017.01-rc2-2-g52b3c56009 (Dec 23 2016 - 16:22:21
> >  -0600), Build: jenkins-github_Bootloader-Buil der-493
> >
> >  debian@beaglebone:~$ sudo nano /boot/uEnv.txt
> >  ##BeagleBone Black: HDMI (Audio/Video) disabled:
> >  dtb=am335x-boneblack-emmc-over lay.dtb
> >  dtb_overlay=/lib/firmware/BB-W 1-P8.26-00A0.dtbo
> >
> >  cmdline=coherent_pool=1M quiet
> >
> >  debian@beaglebone:~$ sudo reboot
> >  debian@beaglebone:~$ cat
> >  /sys/bus/w1/devices/28-064 7ddf6/w1_slave
> >  0b 01 4b 46 7f ff 05 10 a8 : crc=a8 YES
> >  0b 01 4b 46 7f ff 05 10 a8 t=16687
> >
> >
> >  One minor thing of concern - "evm" :
> >
> >  Are you 100%
> >  sure, on selecting [am335x_evm] (y/n)? y
> >  log: dd if=/tmp/tmp.HPy1G6iV9J/dl/MLO-
> >  am335x_evm-v2017.01-rc2-r4 of=/dev/mmcblk0 seek=1 bs=128k
> >  0+1 records in
> >  0+1 records out
> >  68504 bytes (69 kB) copied, 0.00287351 s, 23.8 MB/s
> >  log: dd if=/tmp/tmp.HPy1G6iV9J/dl/u-bo
> >  ot-am335x_evm-v2017.01-rc2-r4. img of=/dev/mmcblk0 seek=1
> >  bs=384k
> >
> >
> >  On Wed, Dec 28, 2016
> >  at 8:52 AM, William Hermans 
> >  wrote:
> >  Well, I'm not sure why I should be testing
> >  then. I do not have an LCD cape, and probably never will.
> >  But I figured I could test my custom cape at boot *AFTER* I
> >  get something like 1-wire to load at boot. e.g. the is
> >  infinitely easier to test, and something I could also test
> >  in hardware right away.
> >
> >  On Wed, Dec 28, 2016
> >  at 8:27 AM, Robert Nelson 
> >  wrote:
> >  On
> >  Wed, Dec 28, 2016 at 9:25 AM, William Hermans 
> >  wrote:
> >
> >  > On Wed, Dec 28, 2016 at 8:23 AM, Robert Nelson <
> robertcnel...@gmail.com>
> >
> >  > wrote:
> >
> >  >>
> >
> >  >> On Wed, Dec 28, 2016 at 9:10 AM, William Hermans
> >  
> >
> >  >> wrote:
> >
> >  >> > So what you're telling me that testing for
> >  different boards is
> >
> >  >> > irrelevant ?
> >
> >  >>
> >
> >  >> That is correct.  This feature has been enabled in
> >  our version of
> >
> >  >> u-boot since last October or so...  So we know
> >  those boards work.
> >
> >  >>
> >
> >  >> Just finally figured out the missing piece to
> >  actually load an overlay
> >
> >  >> on top of the main dtb..
> >
> >  >
> >
> >  >
> >
> >  > sweet. Do tell ;)
> >
> >
> >
> >  "fdt resize"
> >
> >
> >
> >  Regards,
> >
> >
> >
> >  --
> >
> >  Robert Nelson
> >
> >  https://rcn-ee.com/
> >
> >
> >
> >  --
> >
> >  For more options, visit http://beagleboard.org/discuss
> >
> >  ---
> >
> >  You received this message because you are subscribed to the
> >  Google Groups "BeagleBoard" group.
> >
> >  To unsubscribe from this group and stop receiving emails
> >  from it, send an email to beagleboard+unsubscribe@google
> >  groups.com.
> >
> >  To view this discussion on the web visit https://groups.google.com/d/ms
> >  gid/beagleboard/CAOCHtYgemJazx
> >  %3Dg2qndYNmGF%2BPs%2BK%3DAE47_
> >  Z6Vv6H03kYJO%3D6A%40mail.gmail .com.
> >
> >  For
> >  more options, visit 

Re: [beagleboard] U-Boot overlays (HERE BE EVIL DRAGONS, AND THEY BE HUNGRY) ;)

[Gerald Coley]

On Wed, Dec 28, 2016 at 7:31 PM, evilwulfie  wrote:

> why does this person repost these emails without adding any comments ? ?
>
> On 12/28/2016 5:44 PM, chao.ruth via BeagleBoard wrote:
> > 
> > On Thu, 12/29/16, William Hermans  wrote:
> >
> >  Subject: Re: [beagleboard] U-Boot overlays (HERE BE EVIL DRAGONS, AND
> THEY BE HUNGRY) ;)
> >  To: beagleboard@googlegroups.com, "Robert Nelson" <
> robertcnel...@gmail.com>
> >  Date: Thursday, December 29, 2016, 1:27 AM
> >
> >  Anyway, this is
> >  pretty slick. How long do you figure it'll take before
> >  this functionality come into the default uboot ?
> >
> >  On Wed, Dec 28, 2016
> >  at 9:36 AM, William Hermans 
> >  wrote:
> >  Robert,
> >
> >  Have you created a script that removes all the
> >  unnecessary kernel modules loaded superfluously at boot ? I
> >  mean there are a lot of them, and I'd say that 99% of
> >  them in most cases will just be wasting a lot of memory . .
> >  .
> >
> >  On Wed, Dec 28, 2016
> >  at 9:34 AM, William Hermans 
> >  wrote:
> >  Ok so from a fresh emmc flashing( slightly
> >  modified rootfs on the flasher image)
> >
> >  debian@beaglebone:~$ rm /uEnv.txt
> >  rm: cannot remove '/uEnv.txt': No such file or
> >  directory
> >
> >  debian@beaglebone:~$ sudo apt-get update
> >  debian@beaglebone:~$ sudo apt-get install git
> >
> >  debian@beaglebone:~$ cd
> >  /opt/scripts/tools/developers/
> >  debian@beaglebone:/opt/scripts /tools/developers$ git
> >  pull
> >  debian@beaglebone:/opt/scripts /tools/developers$
> >  sudo ./update_bootloader.sh --use-beta-bootloader
> >  debian@beaglebone:/opt/scripts /tools/developers$
> >  sudo reboot
> >
> >  U-Boot 2017.01-rc2-2-g52b3c56009 (Dec 23 2016 - 16:22:21
> >  -0600), Build: jenkins-github_Bootloader-Buil der-493
> >
> >  debian@beaglebone:~$ sudo nano /boot/uEnv.txt
> >  ##BeagleBone Black: HDMI (Audio/Video) disabled:
> >  dtb=am335x-boneblack-emmc-over lay.dtb
> >  dtb_overlay=/lib/firmware/BB-W 1-P8.26-00A0.dtbo
> >
> >  cmdline=coherent_pool=1M quiet
> >
> >  debian@beaglebone:~$ sudo reboot
> >  debian@beaglebone:~$ cat
> >  /sys/bus/w1/devices/28-064 7ddf6/w1_slave
> >  0b 01 4b 46 7f ff 05 10 a8 : crc=a8 YES
> >  0b 01 4b 46 7f ff 05 10 a8 t=16687
> >
> >
> >  One minor thing of concern - "evm" :
> >
> >  Are you 100%
> >  sure, on selecting [am335x_evm] (y/n)? y
> >  log: dd if=/tmp/tmp.HPy1G6iV9J/dl/MLO-
> >  am335x_evm-v2017.01-rc2-r4 of=/dev/mmcblk0 seek=1 bs=128k
> >  0+1 records in
> >  0+1 records out
> >  68504 bytes (69 kB) copied, 0.00287351 s, 23.8 MB/s
> >  log: dd if=/tmp/tmp.HPy1G6iV9J/dl/u-bo
> >  ot-am335x_evm-v2017.01-rc2-r4. img of=/dev/mmcblk0 seek=1
> >  bs=384k
> >
> >
> >  On Wed, Dec 28, 2016
> >  at 8:52 AM, William Hermans 
> >  wrote:
> >  Well, I'm not sure why I should be testing
> >  then. I do not have an LCD cape, and probably never will.
> >  But I figured I could test my custom cape at boot *AFTER* I
> >  get something like 1-wire to load at boot. e.g. the is
> >  infinitely easier to test, and something I could also test
> >  in hardware right away.
> >
> >  On Wed, Dec 28, 2016
> >  at 8:27 AM, Robert Nelson 
> >  wrote:
> >  On
> >  Wed, Dec 28, 2016 at 9:25 AM, William Hermans 
> >  wrote:
> >
> >  > On Wed, Dec 28, 2016 at 8:23 AM, Robert Nelson <
> robertcnel...@gmail.com>
> >
> >  > wrote:
> >
> >  >>
> >
> >  >> On Wed, Dec 28, 2016 at 9:10 AM, William Hermans
> >  
> >
> >  >> wrote:
> >
> >  >> > So what you're telling me that testing for
> >  different boards is
> >
> >  >> > irrelevant ?
> >
> >  >>
> >
> >  >> That is correct.  This feature has been enabled in
> >  our version of
> >
> >  >> u-boot since last October or so...  So we know
> >  those boards work.
> >
> >  >>
> >
> >  >> Just finally figured out the missing piece to
> >  actually load an overlay
> >
> >  >> on top of the main dtb..
> >
> >  >
> >
> >  >
> >
> >  > sweet. Do tell ;)
> >
> >
> >
> >  "fdt resize"
> >
> >
> >
> >  Regards,
> >
> >
> >
> >  --
> >
> >  Robert Nelson
> >
> >  https://rcn-ee.com/
> >
> >
> >
> >  --
> >
> >  For more options, visit http://beagleboard.org/discuss
> >
> >  ---
> >
> >  You received this message because you are subscribed to the
> >  Google Groups "BeagleBoard" group.
> >
> >  To unsubscribe from this group and stop receiving emails
> >  from it, send an email to beagleboard+unsubscribe@google
> >  groups.com.
> >
> >  To view this discussion on the web visit https://groups.google.com/d/ms
> >  gid/beagleboard/CAOCHtYgemJazx
> >  %3Dg2qndYNmGF%2BPs%2BK%3DAE47_
> >  Z6Vv6H03kYJO%3D6A%40mail.gmail .com.
> >
> >  For
> >  more options, visit https://groups.google.com/d/op
> >  tout.
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >  --
> >
> >  For more options, visit 

Re: [beagleboard] Turn off VDD_5V or SYS_5V

[Gerald Coley]

Yes, you can turn those off by unplugging the power supply.

Gerald


On Mon, Dec 26, 2016 at 6:19 PM, Denis Cosmin  wrote:

> I wanted to power an Arduino and I didn't want to use a relay.
>
> On Tuesday, December 27, 2016 at 2:15:16 AM UTC+2, Wulf Man wrote:
>>
>> Why would you want to do that ?
>>
>> On 12/26/2016 5:03 PM, Denis Cosmin wrote:
>>
>> Hello, is it possible to turn off the VDD_5V pin or the SYS_5V pin?
>>
>> --
>> For more options, visit http://beagleboard.org/discuss
>> ---
>> You received this message because you are subscribed to the Google Groups
>> "BeagleBoard" group.
>> To unsubscribe from this group and stop receiving emails from it, send an
>> email to beagleboard...@googlegroups.com.
>> To view this discussion on the web visit https://groups.google.com/d/ms
>> gid/beagleboard/6da34fb9-ba14-4468-a96b-5ac73ced7c41%40googlegroups.com
>> 
>> .
>> For more options, visit https://groups.google.com/d/optout.
>>
>>
>> --
> For more options, visit http://beagleboard.org/discuss
> ---
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> 
> .
>
> For more options, visit https://groups.google.com/d/optout.
>



-- 
Gerald

ger...@beagleboard.org
http://beagleboard.org/
gcol...@emprodesign.com

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Re: [beagleboard] how can I contact the admins of this group?

[Gerald Coley]

As the admin that is not something I am willing to do. You can go to the
main forum page and cut and paste whatever you like that is of interest.
You may be able to find archives stored in various places as their are
groups that will archive the mailing list.

Gerald


On Fri, Dec 23, 2016 at 7:19 AM, yılmaz alışkan 
wrote:

> Hi Gerald,
> the question is not actually about beaglebone black project itself. I need
> a beaglebone black mailing list archive in order to do social network
> analysis. I cannot directly download all data in original format (with
> heads). I assume may be the admin of the groups can help me for this
> trouble.
> Best,
> Yilmaz
>
> 23 Aralık 2016 Cuma 12:52:24 UTC tarihinde Gerald yazdı:
>>
>> Admins are not here to help with PHD projects. Feel free to ask the
>> community any questions you like and accept any free advice they are
>> willing to offer and say thank you. It is after all your PHD project and
>> not theirs.
>>
>> .
>> Gerald
>>
>>
>> On Fri, Dec 23, 2016 at 6:41 AM, yılmaz alışkan 
>> wrote:
>>
>>>
>>> Hi,
>>> I need to talk a admin of this group. one of them can contact me please.
>>> I need some help about my PhD project.
>>> Best,
>>> Yilmaz
>>>
>>> --
>>> For more options, visit http://beagleboard.org/discuss
>>> ---
>>> You received this message because you are subscribed to the Google
>>> Groups "BeagleBoard" group.
>>> To unsubscribe from this group and stop receiving emails from it, send
>>> an email to beagleboard...@googlegroups.com.
>>> To view this discussion on the web visit https://groups.google.com/d/ms
>>> gid/beagleboard/f98d817f-b8c2-44ef-af8a-6e2a786688ce%40googlegroups.com
>>> 
>>> .
>>> For more options, visit https://groups.google.com/d/optout.
>>>
>>
>>
>>
>> --
>> Gerald
>>
>> ger...@beagleboard.org
>> http://beagleboard.org/
>> gco...@emprodesign.com
>>
>> --
> For more options, visit http://beagleboard.org/discuss
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> 
> .
>
> For more options, visit https://groups.google.com/d/optout.
>



-- 
Gerald

ger...@beagleboard.org
http://beagleboard.org/
gcol...@emprodesign.com

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Re: [beagleboard] how can I contact the admins of this group?

[Gerald Coley]

Admins are not here to help with PHD projects. Feel free to ask the
community any questions you like and accept any free advice they are
willing to offer and say thank you. It is after all your PHD project and
not theirs.

.
Gerald


On Fri, Dec 23, 2016 at 6:41 AM, yılmaz alışkan 
wrote:

>
> Hi,
> I need to talk a admin of this group. one of them can contact me please. I
> need some help about my PhD project.
> Best,
> Yilmaz
>
> --
> For more options, visit http://beagleboard.org/discuss
> ---
> You received this message because you are subscribed to the Google Groups
> "BeagleBoard" group.
> To unsubscribe from this group and stop receiving emails from it, send an
> email to beagleboard+unsubscr...@googlegroups.com.
> To view this discussion on the web visit https://groups.google.com/d/
> msgid/beagleboard/f98d817f-b8c2-44ef-af8a-6e2a786688ce%40googlegroups.com
> 
> .
> For more options, visit https://groups.google.com/d/optout.
>



-- 
Gerald

ger...@beagleboard.org
http://beagleboard.org/
gcol...@emprodesign.com

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Re: [beagleboard] Is the elinux x15 page up-to-date?

[Gerald Coley]

I did earlier today.

Gerald

On Thu, Dec 22, 2016 at 7:38 PM, Rick Mann <rm...@latencyzero.com> wrote:

> Maybe just put that note in place, then. Right now, someone looking at
> that page (like me) doesn't know what information is trustworthy. Maybe
> something like (as of mm/dd/, negotiating distribution contracts) or
> something like that.
>
> Thanks!
>
> > On Dec 22, 2016, at 05:04 , Gerald Coley <ger...@beagleboard.org> wrote:
> >
> > As soon as we have a firm date, I will update the page. Any date I put
> out there would be a wild guess at this point and nothing I have any
> control over. The CM is working with the distributors to secure the orders.
> Contracts have to be signed with each distributor which can be a lengthy
> process and is not something I can control. All distributors are engaged
> and the CM is working through the process.
> >
> > Gerald
> >
> >
> > On Thu, Dec 22, 2016 at 3:13 AM, Rick Mann <rm...@latencyzero.com>
> wrote:
> > According to the page (http://elinux.org/Beagleboard:BeagleBoard-X15#
> BeagleBoard-X15_Distributors), the x15 has been shipping 250 units per
> week since the end of September. But Element 14 shows it as "coming soon,"
> rather than backordered.
> >
> > It occurs to me the x15 might be a good platform for building OS images
> for the BBB (or itself, for that matter).
> >
> > Like everyone else, I'm sure, I'd like to know when the x15 will
> actually be delivered.
> >
> > Thanks!
> >
> > --
> > Rick Mann
> > rm...@latencyzero.com
> >
> >
> > --
> > For more options, visit http://beagleboard.org/discuss
> > ---
> > You received this message because you are subscribed to the Google
> Groups "BeagleBoard" group.
> > To unsubscribe from this group and stop receiving emails from it, send
> an email to beagleboard+unsubscr...@googlegroups.com.
> > To view this discussion on the web visit https://groups.google.com/d/
> msgid/beagleboard/F0F653DF-8D57-4288-A417-D856CDAABBCF%40latencyzero.com.
> > For more options, visit https://groups.google.com/d/optout.
> >
> >
> >
> > --
> > Gerald
> >
> > ger...@beagleboard.org
> > http://beagleboard.org/
> > gcol...@emprodesign.com
> >
> >
> > --
> > For more options, visit http://beagleboard.org/discuss
> > ---
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> msgid/beagleboard/CAHK_S%2BcVWCTLEAx%3D%2BcL8Sw-%3DoF-
> Hm81Cbv0U5cv6tMSyEQiHKw%40mail.gmail.com.
> > For more options, visit https://groups.google.com/d/optout.
>
>
> --
> Rick Mann
> rm...@latencyzero.com
>
>
> --
> For more options, visit http://beagleboard.org/discuss
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>



-- 
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http://beagleboard.org/
gcol...@emprodesign.com

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Re: [beagleboard] Is the elinux x15 page up-to-date?

[Gerald Coley]

As soon as we have a firm date, I will update the page. Any date I put out
there would be a wild guess at this point and nothing I have any control
over. The CM is working with the distributors to secure the orders.
Contracts have to be signed with each distributor which can be a lengthy
process and is not something I can control. All distributors are engaged
and the CM is working through the process.

Gerald


On Thu, Dec 22, 2016 at 3:13 AM, Rick Mann  wrote:

> According to the page (http://elinux.org/Beagleboard:BeagleBoard-X15#
> BeagleBoard-X15_Distributors), the x15 has been shipping 250 units per
> week since the end of September. But Element 14 shows it as "coming soon,"
> rather than backordered.
>
> It occurs to me the x15 might be a good platform for building OS images
> for the BBB (or itself, for that matter).
>
> Like everyone else, I'm sure, I'd like to know when the x15 will actually
> be delivered.
>
> Thanks!
>
> --
> Rick Mann
> rm...@latencyzero.com
>
>
> --
> For more options, visit http://beagleboard.org/discuss
> ---
> You received this message because you are subscribed to the Google Groups
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> For more options, visit https://groups.google.com/d/optout.
>



-- 
Gerald

ger...@beagleboard.org
http://beagleboard.org/
gcol...@emprodesign.com

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Re: [beagleboard] 3v3 regulator bug

[Gerald Coley]

In my experience, and external battery is the way to go. I designed a cape
for that a log time ago. That let's you support multiple types of battery
chemistry and multiple configurations.

Gerald


On Wed, Dec 21, 2016 at 7:37 AM, William Hermans  wrote:

>
>
> On Wed, Dec 21, 2016 at 6:26 AM, Jason van Belzen <
> jasonvanbel...@gmail.com> wrote:
>
>> Thanks for your reply.
>>
>> How does this issue damage the processor?
>>
>> Jason
>>
>
> As Gerald already said, I do not believe it does either. What does happen
> however is that the board when in this state through the PMIC wont always
> reset from the switch. Meaning, you have to completely disconnect the input
> power, reconnect it, and then reset before the board will restart.
> Additionally, some people claim that the board when in this state continues
> to draw power. I don't doubt that, I've just never personally tested that.
>
> Anyway, it's probably simpler to design a cape that deals with all this
> for you. Either that, or use an external battery / charging system that
> provides 5v directly to the board. In either case, you'll probably need /
> want an external MCU involved .  . .
>
> --
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> vmzUMm-stxFori1LmbMig%40mail.gmail.com
> 
> .
>
> For more options, visit https://groups.google.com/d/optout.
>



-- 
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gcol...@emprodesign.com

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Re: [beagleboard] 3v3 regulator bug

[Gerald Coley]

I don't believe it does.Main cause of damage is separately  powered devices
that connect to the processor and are not powered at the same time.

Gerald


On Wed, Dec 21, 2016 at 7:26 AM, Jason van Belzen 
wrote:

> Thanks for your reply.
>
> How does this issue damage the processor?
>
> Jason
>
> Op woensdag 21 december 2016 14:08:47 UTC+1 schreef Gerald:
>>
>> I have no plans to fix this. If you need battery operation, which the BBB
>> does not really support as it needs 5V for the USB, then you need to modify
>> the board design for your usage.
>>
>> Gerald
>>
>> On Wed, Dec 21, 2016 at 7:03 AM, Jason van Belzen 
>> wrote:
>>
>>> 3v3 regulator bug:
>>>
>>> https://groups.google.com/forum/#!msg/beagleboard/7sxPePT7wk
>>> M/3vFMPydR20IJ
>>>
>>> The issue is the interconnection of the 3v3a and 3v3b power domains,
 resulting in significant leakage current between them (e.g. via protection
 diodes) whenever one is powered while the other is not. The 3v3b -> 3v3a
 leakage was of course exactly the reason for moving the enable-signal of
 the 3v3b regulator (U4) from 3v3aux (LDO2) to 3v3a. However, while this
 resolved the issue at boot, it did not resolve it at shutdown when running
 on dc power, and made it far worse when running on battery.

 The problem is that when the 3v3a supply (LDO4) is disabled, the 3v3b
 regulator remains enabled until 3v3a drops below the threshold voltage of
 the enable-input of U4, which is far below 3.3V (specified to be somewhere
 between 0.4V (at 25 ͏°C) and 2V). As a result, current will start to flow
 from 3v3b to 3v3a, and apparently enough current to keep it logic-high in
 the opinion of the 3v3b-regulator (despite the ~375 ohm discharge resistor
 the PMIC applies when LDO4 is disabled!).

 Thus, once turned on, the 3v3b regulator manages to keep itself enabled
 indefinitely as long as it is supplied from SYS_5V. When entering
 off-state, the PMIC automatically connects SYS to battery power rather than
 DC- or USB-supply. If there's no battery, then the capacitors on SYS will
 drain pretty fast hence the 3v3b shutdown is not delayed much. If there's a
 battery, then you're pretty screwed.

 It is very important to note that this issue is not merely one of
 battery lifetime; this leakage current may *damage the processor*.


>>>
>>> Op woensdag 21 december 2016 13:55:57 UTC+1 schreef Gerald:

 And what is the 3.3V bug?

 Gerald


 On Wed, Dec 21, 2016 at 6:54 AM, Jason van Belzen  wrote:

> Hi,
> We are planning to build an IoT gateway based on a Beagle Bone Black.
> Till now we were experimenting with the Beagle Bone Black Rev C.
> Since we need to protect the filesystem, we want to use a battery so
> we can detect a power failure and nicely shutdown the system.
>
> Unfortunaletly we encountered a problem.
> After shutting down the system with a battery connected, the 3v3
> regulator bug is triggered.
> The BeagleBone Black is a good board for our purpose, so we really
> want to use this board.
>
> A few questions come up in our minds.
> 1. How bad is this bug? Is it really gonna damage the processor?
> 2. Are there any other solutions than patching to an unified 3v3 rail?
> 3. Are there any next revisions planned for the BeagleBone Black? And
> if they are planned, will this bug be fixed in the next revision?
>
> Thanks.
>
> Regards Jason
>
> --
> For more options, visit http://beagleboard.org/discuss
> ---
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> Groups "BeagleBoard" group.
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> an email to beagleboard...@googlegroups.com.
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> 4dad-a0dc-b19ba9936504%40googlegroups.com
> 
> .
> For more options, visit https://groups.google.com/d/optout.
>



 --
 Gerald

 ger...@beagleboard.org
 http://beagleboard.org/
 gco...@emprodesign.com

 --
>>> For more options, visit http://beagleboard.org/discuss
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>>> 

Re: [beagleboard] 3v3 regulator bug

[Gerald Coley]

I have no plans to fix this. If you need battery operation, which the BBB
does not really support as it needs 5V for the USB, then you need to modify
the board design for your usage.

Gerald

On Wed, Dec 21, 2016 at 7:03 AM, Jason van Belzen 
wrote:

> 3v3 regulator bug:
>
> https://groups.google.com/forum/#!msg/beagleboard/7sxPePT7wkM/3vFMPydR20IJ
>
> The issue is the interconnection of the 3v3a and 3v3b power domains,
>> resulting in significant leakage current between them (e.g. via protection
>> diodes) whenever one is powered while the other is not. The 3v3b -> 3v3a
>> leakage was of course exactly the reason for moving the enable-signal of
>> the 3v3b regulator (U4) from 3v3aux (LDO2) to 3v3a. However, while this
>> resolved the issue at boot, it did not resolve it at shutdown when running
>> on dc power, and made it far worse when running on battery.
>>
>> The problem is that when the 3v3a supply (LDO4) is disabled, the 3v3b
>> regulator remains enabled until 3v3a drops below the threshold voltage of
>> the enable-input of U4, which is far below 3.3V (specified to be somewhere
>> between 0.4V (at 25 ͏°C) and 2V). As a result, current will start to flow
>> from 3v3b to 3v3a, and apparently enough current to keep it logic-high in
>> the opinion of the 3v3b-regulator (despite the ~375 ohm discharge resistor
>> the PMIC applies when LDO4 is disabled!).
>>
>> Thus, once turned on, the 3v3b regulator manages to keep itself enabled
>> indefinitely as long as it is supplied from SYS_5V. When entering
>> off-state, the PMIC automatically connects SYS to battery power rather than
>> DC- or USB-supply. If there's no battery, then the capacitors on SYS will
>> drain pretty fast hence the 3v3b shutdown is not delayed much. If there's a
>> battery, then you're pretty screwed.
>>
>> It is very important to note that this issue is not merely one of battery
>> lifetime; this leakage current may *damage the processor*.
>>
>>
>
> Op woensdag 21 december 2016 13:55:57 UTC+1 schreef Gerald:
>>
>> And what is the 3.3V bug?
>>
>> Gerald
>>
>>
>> On Wed, Dec 21, 2016 at 6:54 AM, Jason van Belzen 
>> wrote:
>>
>>> Hi,
>>> We are planning to build an IoT gateway based on a Beagle Bone Black.
>>> Till now we were experimenting with the Beagle Bone Black Rev C.
>>> Since we need to protect the filesystem, we want to use a battery so we
>>> can detect a power failure and nicely shutdown the system.
>>>
>>> Unfortunaletly we encountered a problem.
>>> After shutting down the system with a battery connected, the 3v3
>>> regulator bug is triggered.
>>> The BeagleBone Black is a good board for our purpose, so we really want
>>> to use this board.
>>>
>>> A few questions come up in our minds.
>>> 1. How bad is this bug? Is it really gonna damage the processor?
>>> 2. Are there any other solutions than patching to an unified 3v3 rail?
>>> 3. Are there any next revisions planned for the BeagleBone Black? And if
>>> they are planned, will this bug be fixed in the next revision?
>>>
>>> Thanks.
>>>
>>> Regards Jason
>>>
>>> --
>>> For more options, visit http://beagleboard.org/discuss
>>> ---
>>> You received this message because you are subscribed to the Google
>>> Groups "BeagleBoard" group.
>>> To unsubscribe from this group and stop receiving emails from it, send
>>> an email to beagleboard...@googlegroups.com.
>>> To view this discussion on the web visit https://groups.google.com/d/ms
>>> gid/beagleboard/a3dea840-c1cf-4dad-a0dc-b19ba9936504%40googlegroups.com
>>> 
>>> .
>>> For more options, visit https://groups.google.com/d/optout.
>>>
>>
>>
>>
>> --
>> Gerald
>>
>> ger...@beagleboard.org
>> http://beagleboard.org/
>> gco...@emprodesign.com
>>
>> --
> For more options, visit http://beagleboard.org/discuss
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>
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Re: [beagleboard] 3v3 regulator bug

[Gerald Coley]

And what is the 3.3V bug?

Gerald


On Wed, Dec 21, 2016 at 6:54 AM, Jason van Belzen 
wrote:

> Hi,
> We are planning to build an IoT gateway based on a Beagle Bone Black.
> Till now we were experimenting with the Beagle Bone Black Rev C.
> Since we need to protect the filesystem, we want to use a battery so we
> can detect a power failure and nicely shutdown the system.
>
> Unfortunaletly we encountered a problem.
> After shutting down the system with a battery connected, the 3v3 regulator
> bug is triggered.
> The BeagleBone Black is a good board for our purpose, so we really want to
> use this board.
>
> A few questions come up in our minds.
> 1. How bad is this bug? Is it really gonna damage the processor?
> 2. Are there any other solutions than patching to an unified 3v3 rail?
> 3. Are there any next revisions planned for the BeagleBone Black? And if
> they are planned, will this bug be fixed in the next revision?
>
> Thanks.
>
> Regards Jason
>
> --
> For more options, visit http://beagleboard.org/discuss
> ---
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> "BeagleBoard" group.
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> email to beagleboard+unsubscr...@googlegroups.com.
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> 
> .
> For more options, visit https://groups.google.com/d/optout.
>



-- 
Gerald

ger...@beagleboard.org
http://beagleboard.org/
gcol...@emprodesign.com

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Re: [beagleboard] 3v3 regulator bug

[Gerald Coley]

And what is the 3.3V regulator bug?

Gerald


On Wed, Dec 21, 2016 at 3:05 AM, Jason van Belzen 
wrote:

> Hi,
> We are planning to build an IoT gateway based on a Beagle Bone Black.
> Till now we were experimenting with the Beagle Bone Black Rev C.
> Since we need to protect the filesystem, we want to use a battery so we
> can detect a power failure and nicely shutdown the system.
>
> Unfortunaletly we encountered a problem.
> After shutting down the system with a battery connected, the 3v3 regulator
> bug is triggered.
> The BeagleBone Black is a good board for our purpose, so we really want to
> use this board.
>
> A few questions come up in our minds.
> 1. How bad is this bug? Is it really gonna damage the processor?
> 2. Are there any other solutions than patching to an unified 3v3 rail?
> 3. Are there any next revisions planned for the BeagleBone Black? And if
> they are planned, will this bug be fixed in the next revision?
>
> Thanks.
>
> Regards Jason
>
> --
> For more options, visit http://beagleboard.org/discuss
> ---
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-- 
Gerald

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http://beagleboard.org/
gcol...@emprodesign.com

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Re: [beagleboard] Re: BBB Ethernet stopped working.

[Gerald Coley]

There is not a HW only fix for this issue. Period.

If you add a reset line to the  PHY, you still need to override the pins on
the processor to inputs for the reset to work. That is a SW change.

Just have the SW scan for one of the four addresses and use the one that is
found. Simple fix that works.

Gerald


On Mon, Dec 19, 2016 at 4:17 PM,  wrote:

> Hi Gerald,
>
> I saw your comment in response to the question about another revision to
> the BBB.  There is a long standing issue with the BBB reset related to the
> Ethernet PHY not coming out of reset properly.  In order to work around the
> problem you need to hack the board and drive the Ethernet PHY with a GPIO
> to ensure the proper reset timing for the PHY.
>
> Is there any plan by CircuitCo to make a revision to address this issue?
> Its a rather tricky hack to do because you have to drill out one of the
> via's to do it properly and that takes a special laser to do it.
>
> Here is another link to a post on the TI forum that also discusses this
> issue and I have seen it discussed here as well.  I am not aware of any
> software revision that has addressed this but perhaps there has been a
> software fix?
>
> Phy Address Issue beaglebone U-boot - Sitara Processors Forum - Sitara™
> Processors - TI E2E Community
> 
>
> Thank you,
> Steve
>
>
> On Sunday, June 14, 2015 at 6:31:58 PM UTC-6, John Reeve wrote:
>>
>> Hi All,
>>
>> I have a pair of BBB's that I bought from Canada Robotix. They are both
>> Rev C boards from Element 14. I've been running debian on a micro SD card
>> on each of them. The one board had been running a web server for about 2
>> months straight, but suddenly lost Ethernet capabilities one day. Both the
>> Ethernet LED's stay ON solid even when no cable is plugged in. I tried to
>> rule out software by loading up a couple different OS's but none of them
>> can connect to my network. I even tried flashing an experimental version of
>> debian from the beagleboard.org wiki but that did not work either. When
>> I boot into debian now I notice the ethernet lights blink for a bit then
>> stop and stay on solid, and I get messages from dmesg like:
>>
>> root@beaglebone:/var/lib/cloud9# dmesg | grep phy
>> [0.00] Booting Linux on physical CPU 0x0
>> [2.715169] 47401300.usb-phy supply vcc not found, using dummy
>> regulator
>> [2.830812] 47401b00.usb-phy supply vcc not found, using dummy
>> regulator
>> [3.392979] davinci_mdio 4a101000.mdio: detected phy mask fffe
>> [3.399823] libphy: 4a101000.mdio: probed
>> [3.399859] davinci_mdio 4a101000.mdio: phy[0]: device
>> 4a101000.mdio:00, driver SMSC LAN8710/LAN8720
>> [   13.783697] net eth0: phy found : id is : 0x7c0f1
>> [   13.783894] libphy: PHY 4a101000.mdio:01 not found
>> [   13.788720] net eth0: phy 4a101000.mdio:01 not found on slave 1
>> [   16.863473] libphy: 4a101000.mdio:00 - Link is Up - 100/Full
>> [   46.943180] libphy: 4a101000.mdio:00 - Link is Down
>> [   71.703444] libphy: 4a101000.mdio:00 - Link is Up - 100/Full
>> [   79.783276] libphy: 4a101000.mdio:00 - Link is Down
>> [  111.023649] libphy: 4a101000.mdio:00 - Link is Up - 100/Full
>> [  233.103186] libphy: 4a101000.mdio:00 - Link is Down
>> [  369.103554] libphy: 4a101000.mdio:00 - Link is Up - 100/Full
>> [  385.183238] libphy: 4a101000.mdio:00 - Link is Down
>> etc.. etc
>>
>> Does anyone have experience with this type of problem?
>> Other info:
>> root@beaglebone:/var/lib/cloud9# uname -a
>> Linux beaglebone 3.14.43-ti-r67 #1 SMP PREEMPT Thu Jun 4 20:37:18 UTC
>> 2015 armv7l GNU/Linux
>>
>> Everything else seems to work.
>>
>> Thanks!
>>
>> -John
>>
>> .
>>
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Re: [beagleboard] Arrow BeagleBoneBlack Industrial (ABBBI) HW files

[Gerald Coley]

Contact Arrow. This is their creation.

Gerald


On Tue, Dec 13, 2016 at 12:10 PM, alem  wrote:

> I'm looking for the hardware files of Arrow's BeagleBoneBlack Industrial
> (ABBBI).
> The hyperlinks from https://beagleboard.org/arrowbbbi aren't defined. Is
> this because this board is not really open-source? Or is it because the
> hardware files are the same as for BBB with just a different Bill Of
> Materials?
>
> Thanks!
>
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Re: [beagleboard] Re: possible workaround for BeagleBone Ethernet PHY problems

[Gerald Coley]

GPIO line as a reset only works it you configure all the lines on the MII
as inputs before you pulse the GPIO line..

Gerald


On Mon, Dec 12, 2016 at 4:02 PM, Robert Nelson 
wrote:

> On Mon, Dec 12, 2016 at 1:10 PM, Grzegorz G  wrote:
> > I wonder if the ethernet problems (link is down) has been resolved?
> >
>
> We have a software workaround, depending on your kernel version (uname
> -r)... Otherwise if your designing your own hardware, make sure you
> tie a gpio line the phy's reset line..
>
> On the bbb design, the phy reset is tied to the processor reset...
>
> Regards,
>
> --
> Robert Nelson
> https://rcn-ee.com/
>
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Re: [beagleboard] What release/version that supports HDMI

[Gerald Coley]

http://www.elinux.org/Beagleboard:BeagleBone_Black_Accessories#HDMI_Adapters

It needs to be an active converter, in other words converts the digital
signals to VGA.The analog signals are not provided on the HDMI connector.

Gerald

On Fri, Dec 9, 2016 at 8:57 PM, eightbits  wrote:

> I just received my HDMI to VGA adapter and could not get it to display
> anything on the monitor.
>
> I have flashed the BBB to:
> Linux version 4.4.30-ti-r64 (root@a2-imx6q-wandboard-2gb) (gcc version
> 4.9.2 (Debian 4.9.2-10) ) #1 SMP Fri Nov 4 21:23:33 UTC 2016
>
> No LSB modules are available.
> Distributor ID: Debian
> Description:Debian GNU/Linux 8.6 (jessie)
> Release:8.6
> Codename:   jessie
>
> I configured the setup as follows:
> External 5 VDC (1 A) PS to BBB
> The BBB host USB connected to a USB Hub (the hub has no problems with
> another PC)
> The USB hub is powered by a 5 VDC 3 A external PS
>
> The HDMI adapter connected to the BBB micro HDMI connector
> The HDMI VGA conned to the monitor. ( the monitor has no problems)
> Connected the miniUSB connector to the HDMI adapter from the hub.
>
> The BBB works ok and I can connect using miniUSB to PC and using SSH.
>
> I did notice that it seems the monitor screen changes to a different
> background color (almost black)
> and the monitor activity light changes to a solid ON am I am thinking the
> monitor 'see's' the VGA from
> the the adapter.
>
> QUESTION: Do I have the correct release (Jesse)  and what else should I be
> doing ?
>
>
> Linux version 4.4.30-ti-r64 (root@a2-imx6q-wandboard-2gb) (gcc version
> 4.9.2 (Debian 4.9.2-10) ) #1 SMP Fri Nov 4 21:23:33 UTC 2016
>
> No LSB modules are available.
> Distributor ID: Debian
> Description:Debian GNU/Linux 8.6 (jessie)
> Release:8.6
> Codename:   jessieLinux version 4.4.30-ti-r64
> (root@a2-imx6q-wandboard-2gb) (gcc version 4.9.2 (Debian 4.9.2-10) ) #1
> SMP Fri Nov 4 21:23:33 UTC 2016
>
> No LSB modules are available.
> Distributor ID: Debian
> Description:Debian GNU/Linux 8.6 (jessie)
> Release:8.6
> Codename:   jessie
>
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Re: [beagleboard] Problem connecting to BBB

[Gerald Coley]

It is dead. Have your friend get you a new one.

Gerald

On Fri, Dec 9, 2016 at 4:43 PM, evilwulfie  wrote:

> Toss it in the trash and order a new one.
>
>
>
> On 12/9/2016 10:25 AM, Alcir Junior wrote:
>
> Hello,
>
> I'm having trouble turning on the BBB.
> A friend used it to do a project involving leds, and did not use resistors
> to protect these led's. Since then, when I turn on the BBB, the power led
> flashes, and BBB shuts off. I think she's short. Is there any way to
> recover the BBB?
> --
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Re: [beagleboard] Setup Wifi on Beaglebone Black Wireless Repeat Post

[Gerald Coley]

That is because you were still moderated on your posts.

Now it is here.

Gerald


On Wed, Dec 7, 2016 at 10:01 AM, tdlivings  wrote:

> I posted this message last night the only way I could find it was to
> search by my id. It shows
> it went to Beagleboard but if you go look without doing a search it is not
> there. I can only find
> and see it if I do a search So I repeat the text here. Sorry for the
> Repeat.
>
> I received my BB Black Wireless yesterday and I do not see any doc on how
> to set up
> wireless for my home network.
> USB 192.168.7.2 network works and Cloud9 there gets a terminal.
>
> I tried my usual editing of /etc/network/interfaces with my said and psk
> for wlan0 but it did not connect.
>
> I found a thread on Beagelbone Black section with something to try
>
> nah use connman, i have it installed by default on jessie images. ;)
>
>
> ~$ sudo connmanctl
>
> connmanctl> enable wifi
>
> Enabled wifi
>
>
> connmanctl> scan wifi
>
> Scan completed for wifi
>
>
> connmanctl> services
>
> *AO Wiredethernet_74d435b65be6_cable
>
> Avenger  wifi_14cc201db6f6_4176656e676572_managed_psk
>
>
> connmanctl> agent on
>
> Agent registered
>
>
> connmanctl> connect wifi_14cc201db6f6_4176656e676572_managed_psk
>
> Agent RequestInput wifi_14cc201db6f6_4176656e676572_managed_psk
>
>   Passphrase = [ Type=psk, Requirement=mandatory ]
>
>
> Passphrase? wine n dine
>
> Connected wifi_14cc201db6f6_4176656e676572_managed_psk
>
>
> connmanctl> quit
>
>
> check:
>
>
> sudo ifconfig -a
>
>
> Regards,
>
>
> --
>
> Robert Nelson
>
> However it did not work as scan wifi just returned and did not say scan
> completed
> tried command services anyway and it just returned
> entered help and saw a tether command with wifi said and psk entry and
> trie it with
> my network said and ask and now the Access point network of the Beaglebone
> Black
> wireless has the name of my home network. Just as a test I did it again
> and changed the
> name to something else and that became the name so obviously that is not
> the way.
>
> What is the planned method.
>
> Thank's
> Tom
>
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Re: [beagleboard] Regarding Beaglebone Black

[Gerald Coley]

https://github.com/CircuitCo/BeagleBone-Black/blob/master/BBB_SRM.pdf?raw=true

Gerald

On Tue, Dec 6, 2016 at 11:35 PM, Kumar Ddk  wrote:

> Respected sir,
>
> I am Mallem Kumar from Kwangwoon University South Korea Seoul.
> in my project I am using Beagle Bone Black, I need one more USB post and
> Ethernet port.
> I have some doubts about BBB please help me.
>
> 1) i am replacing mini USB PC connector to USB port it is possible or not.
>
> 2) what is difference between Boot switch and Reset button.
>
> 3) can you please suggest me how can i connect one more CAN bus to the
> processor, what are the pins can i use to connect a new Ethernet port.
>
>
> please help me sir.
>
> --
> Thanks
> M.Kumar
>
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Re: [beagleboard] Regarding Beaglebone Black adding one more Ethernet port

[Gerald Coley]

Get a USB to Ethernet adapter.

Gerald


On Tue, Dec 6, 2016 at 11:15 PM, Kumar Ddk  wrote:

>
> Hello all,
>
> I am Mallem Kumar, i am very new to beaglebone black, but i need to add
> one more Ethernet port to Beaglebone Black, if anyone know about it what
> are the pins i can use to connect one more Ethernet port.
>
> please help me in this doubt,  if it is possible or not possible, please
> suggest me anyone.
>
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Re: [beagleboard] ssd2828 mipi converter

[Gerald Coley]

You are loading down the boot pins with your design. .

http://www.elinux.org/Beagleboard:BeagleBoneBlack#Expansion_Header_Pin_Usage


Gerald

On Fri, Nov 18, 2016 at 5:21 AM, sevgi aydın 
wrote:

>
>  Dear beaglebone black users;
>
> I am working to on convert RGB to MIPI ..
> I design PCB for beaglebone black .
> But when I connected PCB of convert RGB to MIPI, Beagleboneblack board is
> not work . User leds on beaglrbone board  is not emitting..
> I used to SSD2828  integrated for convert RGB to MIPI ..
>
> If you have an idea about cause ,Could you help me?
> İf you need to schematic  of converter board (RGB to MIPI ), I can share
> you...
>
> I m looking forward to hearing your answer..
> Best Regards..
>
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Re: [beagleboard] expansion connector spec?

[Gerald Coley]

No that I have seen. These connectors are very expensive.
But the boards i have coming don't use these, per se.. They have standard
.1 spaced connectors for add on boards. More like an adapter.

Gerald


On Wed, Nov 9, 2016 at 12:50 PM, Catudal Michel <michelcatu...@gmail.com>
wrote:

> Is there any eagle or kicad library for the connector used?
>
> Le 9 nov. 2016 13:47, "Gerald Coley" <ger...@beagleboard.org> a écrit :
>
>> Not yet. But if there is real demand, there could be.
>>
>> Gerald
>>
>>
>> On Wed, Nov 9, 2016 at 11:06 AM, Catudal Michel <michelcatu...@gmail.com>
>> wrote:
>>
>>> Any CAN addon board?
>>>
>>> Le mercredi 14 septembre 2016 10:20:24 UTC-4, Gerald a écrit :
>>>>
>>>> This is not a BeagleBone Black, not even close. This is a whole
>>>> different, complex and powerful beast. I am working on add on boards at the
>>>> moment and should have some things out soon. Hopefully this will help to
>>>> somewhat solidify an add-on board strategy. It is tough to make it as
>>>> simple as the BeagleBone Black. Way too many variables.
>>>>
>>>> Gerald
>>>>
>>>>
>>>> On Wed, Sep 14, 2016 at 9:14 AM, Andrew Goh <andre...@gmail.com> wrote:
>>>>
>>>>> thanks for clarifying, no worries, i think it is a good development
>>>>> nevertheless, i'd guess as with new boards it'd take some time for the
>>>>> community (and add-on/cape makers) to come up with the 'add-ons' capes etc
>>>>> which hopefully would become a new eco-system
>>>>>
>>>>> On Wednesday, September 14, 2016 at 9:51:56 PM UTC+8, Gerald wrote:
>>>>>>
>>>>>> It is not a custom part. It is a standard product offered by Hirose.
>>>>>> I tried using the connectors used on the BeagleBone Black. I could not 
>>>>>> pull
>>>>>> the boards apart. And there were signal integrity concerns on the SATA 
>>>>>> and
>>>>>> PCIe signals
>>>>>>
>>>>>> Gerald
>>>>>>
>>>>>> --
>>>>> For more options, visit http://beagleboard.org/discuss
>>>>> ---
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>>>>> an email to beagleboard...@googlegroups.com.
>>>>> To view this discussion on the web visit
>>>>> https://groups.google.com/d/msgid/beagleboard/80792c30-6d9a-
>>>>> 483d-ab24-6b4ca4a28cc4%40googlegroups.com
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>>>>> .
>>>>>
>>>>> For more options, visit https://groups.google.com/d/optout.
>>>>>
>>>>
>>>>
>>>>
>>>> --
>>>> Gerald
>>>>
>>>> ger...@beagleboard.org
>>>> http://beagleboard.org/
>>>> gco...@emprodesign.com
>>>>
>>>> --
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>>>
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>>>
>>
>>
>>
>> --
>> Gerald
>>
>> ger...@beagleboard.org
>> http://beagleboard.org/
>> gcol...@emprodesign.com
>>
>> --
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Re: [beagleboard] expansion connector spec?

[Gerald Coley]

Not yet. But if there is real demand, there could be.

Gerald


On Wed, Nov 9, 2016 at 11:06 AM, Catudal Michel 
wrote:

> Any CAN addon board?
>
> Le mercredi 14 septembre 2016 10:20:24 UTC-4, Gerald a écrit :
>>
>> This is not a BeagleBone Black, not even close. This is a whole
>> different, complex and powerful beast. I am working on add on boards at the
>> moment and should have some things out soon. Hopefully this will help to
>> somewhat solidify an add-on board strategy. It is tough to make it as
>> simple as the BeagleBone Black. Way too many variables.
>>
>> Gerald
>>
>>
>> On Wed, Sep 14, 2016 at 9:14 AM, Andrew Goh  wrote:
>>
>>> thanks for clarifying, no worries, i think it is a good development
>>> nevertheless, i'd guess as with new boards it'd take some time for the
>>> community (and add-on/cape makers) to come up with the 'add-ons' capes etc
>>> which hopefully would become a new eco-system
>>>
>>> On Wednesday, September 14, 2016 at 9:51:56 PM UTC+8, Gerald wrote:

 It is not a custom part. It is a standard product offered by Hirose. I
 tried using the connectors used on the BeagleBone Black. I could not pull
 the boards apart. And there were signal integrity concerns on the SATA and
 PCIe signals

 Gerald

 --
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>>> 
>>> .
>>>
>>> For more options, visit https://groups.google.com/d/optout.
>>>
>>
>>
>>
>> --
>> Gerald
>>
>> ger...@beagleboard.org
>> http://beagleboard.org/
>> gco...@emprodesign.com
>>
>> --
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Re: [beagleboard] Re: Where to purchase?

[Gerald Coley]

It is on the latest Bill of material.

On Nov 7, 2016 12:32 PM, "Catudal Michel"  wrote:

> What is the part number for the header for the fan on the board? My Rev 2
> of the board doesn't have it.
>
> Le vendredi 23 septembre 2016 09:55:37 UTC-4, Gerald a écrit :
>>
>> Can you send me some pictures? Which inductors were rusty?
>>
>> Gerald
>>
>> On Fri, Sep 23, 2016 at 8:51 AM,  wrote:
>>
>>> Two weeks ago, I got four boards from RS Components. Ordering process
>>> was smooth, BUT: One of them was missing the heat sink, had filled fan
>>> connector pins, smelled like it got too hot, was scratched, had rusty
>>> inductors,...
>>>
>>> Seems as if I got a used A2 prototype... But yes, they still have some
>>> in stock ;)
>>>
>>> Claudius
>>>
>>> On Wednesday, September 21, 2016 at 10:46:08 PM UTC+2, David Culp wrote:

 I see that production runs should start hitting distribution soon.
 Will the board be available anywhere besides RS Components?

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>>>
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>>>
>>
>>
>>
>> --
>> Gerald
>>
>> ger...@beagleboard.org
>> http://beagleboard.org/
>> gco...@emprodesign.com
>>
>> --
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Re: [beagleboard] Fried microsd cards

[Gerald Coley]

There is plenty of capacitance on the output of that regulator found in
other locations on the schematic..

That will not fry a 3.3V SD card.

Gerald

On Fri, Oct 28, 2016 at 11:57 AM, Jonathan Herbst  wrote:

> I am looking into some fried microsd cards that I've seen from BeagleBone
> Blacks.  I'm not sure what is causing the problem yet, but while reviewing
> the BeagleBone Black schematic I noticed that the VDD_3V3B regulator looks
> like it might have swapped input and output capacitors.  According to the
> manual for the regulator, http://www.ti.com/lit/ds/symlink/tl5209.pdf,
> the minimum output capacitance should be 2.2uf, but the schematic shows a
> .1uf capacitor for the output capacitor, C20.  Just wondering if that was
> on purpose.  I don't think this is the cause of the fried sd cards I'm
> seeing because there's plenty of capacitance at the microsd port, but it
> looked odd to me.
>
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Re: [beagleboard] availability of BB X-15 through canadian distributor?

[Gerald Coley]

Canada? Zero at this point. I have no Canadian distributor interested at
this time, at least as far as I know.

I am in the process of getting a new assembly house on line.

Oh, and thanks for the reminder. I need to get me some new razor blades.
Sterile razors are hard to find!

Gerald


On Fri, Oct 21, 2016 at 4:03 PM, Robert P. J. Day 
wrote:

>
>   (i'm sure gerald wants to slash his wrists every time someone asks
> about BB X-15 availability ...)
>
>   i'm arranging to teach an embedded linux class jan 2017 here in
> canada (ottawa), and i believe i've convinced the client to use BB
> X-15 as the platform for all the students, which means purchasing at
> least 12 of them.
>
>   what is the status on being able to purchase these things in canada
> by, say, mid-december? who will be the official canadian distributor?
> and what estimate on when they'll be available?
>
> rday
>
> --
>
> 
> Robert P. J. Day Ottawa, Ontario, CANADA
> http://crashcourse.ca
>
> Twitter:   http://twitter.com/rpjday
> LinkedIn:   http://ca.linkedin.com/in/rpjday
> 
>
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Re: [beagleboard] pcie expansion?

[Gerald Coley]

There will be. We are building protos soon.

Gerald

On Tue, Oct 18, 2016 at 6:36 PM, Christopher Hansen 
wrote:

> Are there any expansion boards available to use a mini-pcie card with the
> beagleboard x15?
>
> Thanks.
>
> Chris
>
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Re: [beagleboard] Re: Missing ports and componants, need clarification and info to turn on.

[Gerald Coley]

What I would do with this board to use it and power it, is use the power
jack holes. Whether or not anyone else could do this, I cannot say. Then
again, what I would do is only speculation on my part because I don't think
I would have bought this board..

Gerald


On Sat, Oct 15, 2016 at 1:20 PM, William Hermans <yyrk...@gmail.com> wrote:

> With the R-Pi's it is back to power the unit from the GPIO because it is
>> not regulated from there and one can blow out the board.
>>
>
> I wouldn't say it's bad per se. Assuming 'back' was meant to be 'bad' I'd
> say that it would be bad to apply unregulated power through the expansion
> header. I guess the rpi foundation expects engineers to know this though,
> and supply voltage regulation on their 'hats'. If power through the
> expansion header is required. As it would be lame in a 'production
> environment' to have to use the walwart to micro usb power adapters.
>
> On Sat, Oct 15, 2016 at 11:10 AM, evilwulfie <evilwul...@gmail.com> wrote:
>
>> I think he meant the header power pins rather than a GPIO pin.
>>
>> On 10/15/2016 11:04 AM, Gerald Coley wrote:
>>
>> Anyone has the right to build this board. That in no way infers that they
>> know how to build it or even can support it. All the parts look in the
>> right place, but it is not a Rev B.Looks more like a Rev C. Rev B was built
>> using the AM3359 processor. It has the BeagleBone logo, but not the .org
>> name, so not sure where they got the logos. So, I would advise buying
>> boards from someone who knows what they are talking about, not just some
>> scrap dealer.
>>
>> Pads for the power jack are still there. Solder wires into it to power
>> the board. It might even power up once.
>> You cannot power a board via a GPIO pin, at least not for more than 5-6
>> seconds depending how big the flames are and how much smoke there is.
>>
>> Gerald
>>
>>
>>
>> On Sat, Oct 15, 2016 at 10:22 AM, <elfenma...@gmail.com> wrote:
>>
>>> Thanks for the info, Gerald. I will keep it and see what I can do with
>>> it. In the least I am going get replacement USB ports and power ports and
>>> put them in. At the same time I ordered through another seller a "complete"
>>> Rev. B board for $30. They say that is Debian on it and not Angstrom, which
>>> is fine for me, I can always reflash the BBB to get Angstrom on it again.
>>>
>>> Back to the first unit - I noticed about BBB being sold out there, under
>>> the name of "AntMiner"(?) and it too is in the same situation - lacking
>>> ports and other things. But this unit, the mission parts look like they
>>> were never there and the board redesigned at the factory to move the chips
>>> around. In my mind, I think somebody set up a bunch of headless servers
>>> with these things. If so, without power how does one turn these things on
>>> without a USB or Power Jack? Using the GPIO an option for power input? With
>>> the R-Pi's it is back to power the unit from the GPIO because it is not
>>> regulated from there and one can blow out the board.
>>>
>>> Again, any help from anyone is greatly appreciated.
>>> --
>>> For more options, visit http://beagleboard.org/discuss
>>> ---
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>>>
>>>
>>> For more options, visit https://groups.google.com/d/optout.
>>>
>>
>>
>>
>> --
>> Gerald
>>
>> ger...@beagleboard.org
>> http://beagleboard.org/
>> gcol...@emprodesign.com
>>
>> --
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>> ---
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>> WZb-5eesLYEig%40mail.gmail.com
>&

Re: [beagleboard] Re: Missing ports and componants, need clarification and info to turn on.

[Gerald Coley]

Anyone has the right to build this board. That in no way infers that they
know how to build it or even can support it. All the parts look in the
right place, but it is not a Rev B.Looks more like a Rev C. Rev B was built
using the AM3359 processor. It has the BeagleBone logo, but not the .org
name, so not sure where they got the logos. So, I would advise buying
boards from someone who knows what they are talking about, not just some
scrap dealer.

Pads for the power jack are still there. Solder wires into it to power the
board. It might even power up once.
You cannot power a board via a GPIO pin, at least not for more than 5-6
seconds depending how big the flames are and how much smoke there is.

Gerald



On Sat, Oct 15, 2016 at 10:22 AM,  wrote:

> Thanks for the info, Gerald. I will keep it and see what I can do with it.
> In the least I am going get replacement USB ports and power ports and put
> them in. At the same time I ordered through another seller a "complete"
> Rev. B board for $30. They say that is Debian on it and not Angstrom, which
> is fine for me, I can always reflash the BBB to get Angstrom on it again.
>
> Back to the first unit - I noticed about BBB being sold out there, under
> the name of "AntMiner"(?) and it too is in the same situation - lacking
> ports and other things. But this unit, the mission parts look like they
> were never there and the board redesigned at the factory to move the chips
> around. In my mind, I think somebody set up a bunch of headless servers
> with these things. If so, without power how does one turn these things on
> without a USB or Power Jack? Using the GPIO an option for power input? With
> the R-Pi's it is back to power the unit from the GPIO because it is not
> regulated from there and one can blow out the board.
>
> Again, any help from anyone is greatly appreciated.
>
> --
> For more options, visit http://beagleboard.org/discuss
> ---
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> 
> .
>
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-- 
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gcol...@emprodesign.com

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Re: [beagleboard] Missing ports and componants, need clarification and info to turn on.

[Gerald Coley]

Well, it looks like from the pictures those parts were removed. Sounds like
somebody bought boards, modified them for their use, and decided to sell
them. and the description seems to infer that.

Picture clearly shows the parts are not there. Might have been a good idea
to compare it to the other pictures on Ebay to see what you were getting. I
will say its functions are somewhat limited.

Condition: *Used* *:*
Seller Notes: “This is a used Beaglebone Black Rev B. removed from a
control board, it's been tested & is functioning”

http://www.ebay.com/itm/Beaglebone-Black-AM335x-1GHz-ARM-Cortex-A8-2GB-512MB-DDR3-Rev-B-/131963395388?hash=item1eb9a19d3c:g:ltwAAOSwPCVX8-~A


They have a money back guarantee.

Gerald

On Fri, Oct 14, 2016 at 2:57 PM,  wrote:

> Total Newbie here. Bought a BeagleBone Black Rev. B from ebay for $15. It
> is advertised on ebay as a BeagleBone Black.
>
> While I waited for it to be delivered, I studied up on how to boot it up
> and access it, so I'm familiar with the process of getting it going.
>
> First thing I noticed on the ebay pics is that the USB Ports are missing.
> OK, I dealt with broken USB ports on the Raspberry Pi and how to replace
> them. And the HDMI Port is missing too, as well as the power jack. The
> seller said that these BBBs were used for some network project and the
> ports were removed but they turned on by a different mean. The pic on the
> seller's page has the ports missing but the chips on the board are there.
>
> Got the BBB today. Missing are:
>
> Top:
> P3 (USB Host Port)
> P1 (Power Port)
> J1 pins (Serial Console?)
> U11
> D6
> D7
> D8
> RT1 (Resistor?)
> C34 (Capacitor)
>
> Bottom:
> P6 (HDMI Port)
> U8
> P4
>
> Note: The Power Jack and the USB Port looks like it was never there - no
> solder on the board. Ans no solder on the "Battery points" either. Also,
> under the CPU it says "beaglebone" and not "beaglebone bone."
>
> Questions: How to turn this unit on and connect to my computer? Once I get
> past this, I can use it as a headless server using VNC and Console Terminal
> to access it.
>
> --
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Re: [beagleboard] Spam on the list

[Gerald Coley]

Yes it has.

Gerald


On Mon, Oct 3, 2016 at 10:00 AM, rcaetano  wrote:

> Has this been reported to google?
>
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Re: [beagleboard] BeagleBoard-X15 production board update

[Gerald Coley]

There is metal in the ferrite and they can oxidize when exposed to high
heat. As long as the heatsink it on it should be fine. If you plan to run
it full board, you may need to use the fan. We are looking to coat the top
of the inductors to prevent the discoloration.

Here is a link to another instance of this with another inductor
http://www.digikey.com/en/pdf/v/vishay-dale/effect-surface-oxidation-ihlp


Gerald


On Fri, Sep 30, 2016 at 12:50 PM, William Hermans <yyrk...@gmail.com> wrote:

> The discoloration in now way affects the operation of the board, it is
>> just a side affect of the heat generated by the processor.
>>
>
> In no way ?
>
> Just want to be clear. I have overactive fingers sometimes too.
>
> On Fri, Sep 30, 2016 at 10:39 AM, Gerald Coley <ger...@beagleboard.org>
> wrote:
>
>> RS will have the B1 in the coming weeks. Right now we are working on a
>> discoloration issue with the inductors when the board gets really hot. We
>> are thinking the B1 version will not have the same issue due to some layout
>> changes we made as well as some other things we are working on. The plan
>> now is to start building some boards next week to make sure the issue is
>> resolved. The discoloration in now way affects the operation of the board,
>> it is just a side affect of the heat generated by the processor.
>>
>> We are working to get some US distributors online as well. Once we have
>> those, we will start ramping to volume.
>>
>> Gerald
>>
>>
>> On Fri, Sep 30, 2016 at 11:57 AM, Nick Cripps <nick.cri...@gmail.com>
>> wrote:
>>
>>> Hi,
>>>
>>> Apologies if this has been covered recently.
>>>
>>> I am wondering what the current status of BeagleBoard-X15 production
>>> boards is. The wiki seems to imply that production boards would be shipping
>>> this week but, it also says that only A2 versions are currently available.
>>> Can anyone clarify what is on sale on RS UK as a BeagleBoard-X15 here
>>> https://uk.rs-online.com/mobile/p/processor-microcontroller-
>>> development-kits/8874764/ and, if it is not a production board, when
>>> they are expected to go on sale in the UK?
>>>
>>> Many thanks,
>>> Nick
>>>
>>> --
>>> For more options, visit http://beagleboard.org/discuss
>>> ---
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>>> For more options, visit https://groups.google.com/d/optout.
>>>
>>
>>
>>
>> --
>> Gerald
>>
>> ger...@beagleboard.org
>> http://beagleboard.org/
>> gcol...@emprodesign.com
>>
>> --
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Re: [beagleboard] BeagleBoard-X15 production board update

[Gerald Coley]

RS will have the B1 in the coming weeks. Right now we are working on a
discoloration issue with the inductors when the board gets really hot. We
are thinking the B1 version will not have the same issue due to some layout
changes we made as well as some other things we are working on. The plan
now is to start building some boards next week to make sure the issue is
resolved. The discoloration in now way affects the operation of the board,
it is just a side affect of the heat generated by the processor.

We are working to get some US distributors online as well. Once we have
those, we will start ramping to volume.

Gerald


On Fri, Sep 30, 2016 at 11:57 AM, Nick Cripps  wrote:

> Hi,
>
> Apologies if this has been covered recently.
>
> I am wondering what the current status of BeagleBoard-X15 production
> boards is. The wiki seems to imply that production boards would be shipping
> this week but, it also says that only A2 versions are currently available.
> Can anyone clarify what is on sale on RS UK as a BeagleBoard-X15 here
> https://uk.rs-online.com/mobile/p/processor-microcontroller-development-
> kits/8874764/ and, if it is not a production board, when they are
> expected to go on sale in the UK?
>
> Many thanks,
> Nick
>
> --
> For more options, visit http://beagleboard.org/discuss
> ---
> You received this message because you are subscribed to the Google Groups
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>



-- 
Gerald

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http://beagleboard.org/
gcol...@emprodesign.com

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Re: [beagleboard] LCD RGB signall termination and line impedance

[Gerald Coley]

These signals are also the boot pins. You need to check the schematic of
the SOM to see what resistor values they are using to terminate the
signals. I would buffer the signals before connecting them to a LCD panel.

Gerald


On Wed, Sep 28, 2016 at 12:50 PM, John Syne  wrote:

> 33 ohms is a good starting point. Once you have your board operating, use
> a high speed digital oscilloscope to measure the waveforms on the LCD
> lines. If they are square with no or little ringing, then the value is
> fine. If you see ringing, start by increase the resistor value and if it
> gets worse, then lower the resistor value. This iterative approach is the
> best solution if you don’t have SI tools to model the circuits. There are
> several tools you can use to model these circuits:
>
> https://www.mentor.com/pcb/hyperlynx/
> http://www.awrcorp.com/products/microwave-office
> https://en.wikipedia.org/wiki/HFSS
>
>
> Regards,
> John
>
>
>
>
> On Sep 28, 2016, at 7:42 AM, Francisco Aguerre 
> wrote:
>
> Hello,
>
> I am working with a System-on-Module based on the BeagleBone Black and I
> need to connect a TFT LCD screen that goes in the front panel of a
> rackmounted 19'' enclosure. The cable has to run a distance of about 15cm
> and I am concerned about EMI stuff.
>
> My question is: what is the appropiate line impedance for the RGB signals?
> What about termination resistor values?
>
> I've seen that the TI Sitara Starter Kit has 33ohm termination resistors,
> but I am not sure how/why that value is chosen and how relates to line
> impedance. I know for example that for Ethernet you need 100ohm
> differential and for MII is generally 50ohm single ended. Is there a
> standard value for
>
> Any suggestions will be appreciated!
>
> Regards,
>
> Francisco
>
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Re: [beagleboard] LCD RGB signall termination and line impedance

[Gerald Coley]

Depends on the LCD, distance, capacitance, and the connector impedance of
the SOM. The SOM supplier should be able to answer that question via an
application note.

Gerald

On Wed, Sep 28, 2016 at 9:42 AM, Francisco Aguerre <
franciscoague...@gmail.com> wrote:

> Hello,
>
> I am working with a System-on-Module based on the BeagleBone Black and I
> need to connect a TFT LCD screen that goes in the front panel of a
> rackmounted 19'' enclosure. The cable has to run a distance of about 15cm
> and I am concerned about EMI stuff.
>
> My question is: what is the appropiate line impedance for the RGB signals?
> What about termination resistor values?
>
> I've seen that the TI Sitara Starter Kit has 33ohm termination resistors,
> but I am not sure how/why that value is chosen and how relates to line
> impedance. I know for example that for Ethernet you need 100ohm
> differential and for MII is generally 50ohm single ended. Is there a
> standard value for
>
> Any suggestions will be appreciated!
>
> Regards,
>
> Francisco
>
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Re: [beagleboard] bricked beagle board turn on and turn off after few sec

[Gerald Coley]

Your board is dead. It will not function anymore.

Gerald

On Wed, Sep 28, 2016 at 8:36 AM, Nigi Fabio  wrote:

> sorry Wulf i 'm not catching it, buy a new outlet or buy a new beaglebone?
>
>
> On Wednesday, September 28, 2016 at 3:31:57 PM UTC+2, Wulf Man wrote:
>
>> buy a new one ?
>>
>> On 9/28/2016 6:30 AM, Nigi Fabio wrote:
>>
>> do you have any idea on how to solve it?
>> should i use different outlet? (like a 2.1A)
>>
>> On Wednesday, September 28, 2016 at 1:21:13 PM UTC+2, Gerald wrote:
>>>
>>> Sounds like the processor has shorted out. When it consumes too much
>>> current the PMIC shuts down.
>>>
>>> On Sep 28, 2016 2:58 AM, "Nigi Fabio"  wrote:
>>>
 Hi all,
 i had this beagleboard black on my desk for a while without the time to
 play with, i turned on a couple of and play (read mess with it :)) a bit.
 i tried to turn it on again couple of days ago, with no luck the power
 led turn on and then off after 2/3 sec.
 i Downloaded the mmc restore image, put on a sd and then i tried to
 reflash to restore to factory, press the s2 button as per per procedure,
 all the leds turn on as expected and less than 10 sec after it turn off
 again,
 i tried to boot with the 1A usb outlet and with the power cable too, no
 luck any suggestion on how to recover or debug?

 thanks,
 Fabio
 --
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Re: [beagleboard] bricked beagle board turn on and turn off after few sec

[Gerald Coley]

Replace the processor or just buy a new one. Putting a bigger power supply
on it will not solve the issue.

Gerald


On Wed, Sep 28, 2016 at 8:30 AM, evilwulfie  wrote:

> buy a new one ?
>
>
> On 9/28/2016 6:30 AM, Nigi Fabio wrote:
>
> do you have any idea on how to solve it?
> should i use different outlet? (like a 2.1A)
>
> On Wednesday, September 28, 2016 at 1:21:13 PM UTC+2, Gerald wrote:
>>
>> Sounds like the processor has shorted out. When it consumes too much
>> current the PMIC shuts down.
>>
>> On Sep 28, 2016 2:58 AM, "Nigi Fabio"  wrote:
>>
>>> Hi all,
>>> i had this beagleboard black on my desk for a while without the time to
>>> play with, i turned on a couple of and play (read mess with it :)) a bit.
>>> i tried to turn it on again couple of days ago, with no luck the power
>>> led turn on and then off after 2/3 sec.
>>> i Downloaded the mmc restore image, put on a sd and then i tried to
>>> reflash to restore to factory, press the s2 button as per per procedure,
>>> all the leds turn on as expected and less than 10 sec after it turn off
>>> again,
>>> i tried to boot with the 1A usb outlet and with the power cable too, no
>>> luck any suggestion on how to recover or debug?
>>>
>>> thanks,
>>> Fabio
>>> --
>>> For more options, visit http://beagleboard.org/discuss
>>> ---
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>>> 
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Re: [beagleboard] bricked beagle board turn on and turn off after few sec

[Gerald Coley]

Sounds like the processor has shorted out. When it consumes too much
current the PMIC shuts down.

On Sep 28, 2016 2:58 AM, "Nigi Fabio"  wrote:

> Hi all,
> i had this beagleboard black on my desk for a while without the time to
> play with, i turned on a couple of and play (read mess with it :)) a bit.
> i tried to turn it on again couple of days ago, with no luck the power led
> turn on and then off after 2/3 sec.
> i Downloaded the mmc restore image, put on a sd and then i tried to
> reflash to restore to factory, press the s2 button as per per procedure,
> all the leds turn on as expected and less than 10 sec after it turn off
> again,
> i tried to boot with the 1A usb outlet and with the power cable too, no
> luck any suggestion on how to recover or debug?
>
> thanks,
> Fabio
>
> --
> For more options, visit http://beagleboard.org/discuss
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Re: [beagleboard] Re: Where to purchase?

[Gerald Coley]

The oxidation is a common issue on the ferrite inductors. It is related to
exposure to heat and is cosmetic in nature. We think we have a way to
prevent that so we will be implementing that on the next round of boards.
Here is a little blurb from DigiKey about it
http://www.digikey.com/en/pdf/v/vishay-dale/effect-surface-oxidation-ihlp

As to the other three issues, those are related to updating these boards
from the TI X15 EVM use to the BeagleBoard-X15 use. None of these will be
the case on the actual B1 run of boards.

-Removal of the jumpers and addition of the resistors. Looks like a
soldering iron slip. Should not have gone out.
-Addition of the Heatsink. Missed inspection.
-Addition of the fan connector. Not sure what the issue was there, but
should not be an issue on the full production run as it is mounted by
default, not as a modiication.
-Removal of current measurement headers (Totally removed on the B1 version).

These will be correct on the production run.

Gerald


On Fri, Sep 23, 2016 at 8:51 AM,  wrote:

> Two weeks ago, I got four boards from RS Components. Ordering process was
> smooth, BUT: One of them was missing the heat sink, had filled fan
> connector pins, smelled like it got too hot, was scratched, had rusty
> inductors,...
>
> Seems as if I got a used A2 prototype... But yes, they still have some in
> stock ;)
>
> Claudius
>
> On Wednesday, September 21, 2016 at 10:46:08 PM UTC+2, David Culp wrote:
>>
>> I see that production runs should start hitting distribution soon.  Will
>> the board be available anywhere besides RS Components?
>>
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Re: [beagleboard] Re: Where to purchase?

[Gerald Coley]

Can you send me some pictures? Which inductors were rusty?

Gerald

On Fri, Sep 23, 2016 at 8:51 AM,  wrote:

> Two weeks ago, I got four boards from RS Components. Ordering process was
> smooth, BUT: One of them was missing the heat sink, had filled fan
> connector pins, smelled like it got too hot, was scratched, had rusty
> inductors,...
>
> Seems as if I got a used A2 prototype... But yes, they still have some in
> stock ;)
>
> Claudius
>
> On Wednesday, September 21, 2016 at 10:46:08 PM UTC+2, David Culp wrote:
>>
>> I see that production runs should start hitting distribution soon.  Will
>> the board be available anywhere besides RS Components?
>>
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Re: [beagleboard] Where to purchase?

[Gerald Coley]

Nothing closed yet with other distributors. We are having to go through the
approval process to become a supplier. That is holding things up.

Gerald

On Wed, Sep 21, 2016 at 3:46 PM, David Culp  wrote:

> I see that production runs should start hitting distribution soon.  Will
> the board be available anywhere besides RS Components?
>
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Re: [beagleboard] Logic level for PWM, kernel 4.1?

[Gerald Coley]

Do a PDF search for the pin number.

Gerald


On Tue, Sep 20, 2016 at 10:02 AM, Nguyễn Hồng Quân <ng.hong.q...@gmail.com>
wrote:

>
>
> On Tue, Sep 20, 2016 at 9:50 PM, Gerald Coley <ger...@beagleboard.org>
> wrote:
>
>>
>> Read the datasheet. It will tell you the state of the pin after reset,
>> before the SW has run..
>>
>
> I don't really care the status in short moment. The reason behind my
> question is:
>
> "
> ​I want the pin to be 0V when PWM is working, because I want to reduce the
> power drain from my BeagleBone board to feed the PWM pin. It is similar to
> why we have GPIO at 0V to turn on the LED."
>
> It will be good if you can point me where to read in the datasheet. I feel
> difficulty reading the whole document.
>
> --
> Quân
> ***
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Re: [beagleboard] Logic level for PWM, kernel 4.1?

[Gerald Coley]

Read the datasheet. It will tell you the state of the pin after reset,
before the SW has run.

Gerald

On Tue, Sep 20, 2016 at 9:29 AM, evilwulfie  wrote:

>
>
>
> you will need an external inverting buffer
>
>
>
> On 9/20/2016 7:06 AM, Nguyễn Hồng Quân wrote:
>
> What I want is, after "reset", the servo motor is supposed to be off, the
> pin is 3.3V, and when PWM starts, the servo is supposed to be started,
> the pin is 0V.
>
> On Tue, Sep 20, 2016 at 8:40 PM, evilwulfie  wrote:
>
> you are not making sense.
>>
>> pwm pin low - 0v high = 3.3 v
>>
>>
>>
>
> --
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> ***
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Re: [beagleboard] wifi/connmand

[Gerald Coley]

Here it is.

Gerald


On Wed, Sep 14, 2016 at 10:36 PM, Andrew Kirch  wrote:

> I have a Beaglebone Black with an rtl8169cu attached via usb. It
> apparently comes up in an invalid state during boot. This means I have to
> powercycle the USB bus to get it to start.  I've reset the USB bus during
> boot with the following in /etc/rc.local as a workaround:
> devmem2 0x47401c60 b 0x00
> sleep 1
> echo "usb1" > /sys/bus/usb/drivers/usb/unbind
> sleep 20
> echo "usb1" > /sys/bus/usb/drivers/usb/bind
> sleep 1
> devmem2 0x47401c60 b 0x01
> systemctl restart connman-wait-online
>
> By adding this wifi comes up at the end of the boot process, and
> connman-wait-online no longer shows as failed.
> Unfortunately this mean that booting with wifi takes well over a minute.
> Both connman-wait-online, and a 22 second script need to run.  dmesg output
> is below
> Thanks in advance and let me know if there's any further information I can
> provide!
>
>
> [   23.761353] rtl8192cu: Chip version 0x10
> [   23.867608] omap-aes 5350.aes: OMAP AES hw accel rev: 3.2
> [   23.922520] omap-sham 5310.sham: hw accel on OMAP rev 4.3
> [   24.749649] rtl8192cu: MAC address: 00:9e:95:9b:56:16
> [   24.749680] rtl8192cu: Board Type 0
> [   24.750696] rtl_usb: rx_max_size 15360, rx_urb_num 8, in_ep 1
> [   24.750856] rtl8192cu: Loading firmware rtlwifi/rtl8192cufw_TMSC.bin
> [   24.798308] ieee80211 phy0: Selected rate control algorithm 'rtl_rc'
> [   24.810284] usbcore: registered new interface driver rtl8192cu
> [   24.812598] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready
> [   26.618448] asoc-simple-card sound: i2s-hifi <-> 48038000.mcasp mapping
> ok
> [   27.010110] cfg80211: World regulatory domain updated:
> [   27.010139] cfg80211:  DFS Master region: unset
> [   27.010148] cfg80211:   (start_freq - end_freq @ bandwidth),
> (max_antenna_gain, max_eirp), (dfs_cac_time)
> [   27.010161] cfg80211:   (2402000 KHz - 2472000 KHz @ 4 KHz), (N/A,
> 2000 mBm), (N/A)
> [   27.010170] cfg80211:   (2457000 KHz - 2482000 KHz @ 4 KHz), (N/A,
> 2000 mBm), (N/A)
> [   27.010179] cfg80211:   (2474000 KHz - 2494000 KHz @ 2 KHz), (N/A,
> 2000 mBm), (N/A)
> [   27.010191] cfg80211:   (517 KHz - 525 KHz @ 8 KHz, 16
> KHz AUTO), (N/A, 2000 mBm), (N/A)
> [   27.010201] cfg80211:   (525 KHz - 533 KHz @ 8 KHz, 16
> KHz AUTO), (N/A, 2000 mBm), (0 s)
> [   27.010211] cfg80211:   (549 KHz - 573 KHz @ 16 KHz), (N/A,
> 2000 mBm), (0 s)
> [   27.010219] cfg80211:   (5735000 KHz - 5835000 KHz @ 8 KHz), (N/A,
> 2000 mBm), (N/A)
> [   27.010228] cfg80211:   (5724 KHz - 6372 KHz @ 216 KHz),
> (N/A, 0 mBm), (N/A)
> [  141.506192] usb 1-1: USB disconnect, device number 2
> [  141.506676] rtl_usb: reg 0x102, usbctrl_vendorreq TimeOut!
> status:0xffed value=0x80
> [  141.518118] rtl_usb: reg 0x422, usbctrl_vendorreq TimeOut!
> status:0xffed value=0x80208002
> [  141.526878] rtl_usb: reg 0x542, usbctrl_vendorreq TimeOut!
> status:0xffed value=0x80208002
> [  161.612842] hub 1-0:1.0: USB hub found
> [  161.618472] hub 1-0:1.0: 1 port detected
> [  162.061318] usb 1-1: new high-speed USB device number 3 using musb-hdrc
> [  162.193762] usb 1-1: New USB device found, idVendor=0bda, idProduct=8176
> [  162.193817] usb 1-1: New USB device strings: Mfr=1, Product=2,
> SerialNumber=3
> [  162.193848] usb 1-1: Product: 802.11n WLAN Adapter
> [  162.193877] usb 1-1: Manufacturer: 802.11n WLPN Adapter
> [  162.193906] usb 1-1: SerialNumber: 00e04c01
> [  162.210429] rtl8192cu: Chip version 0x10
> [  162.322262] rtl8192cu: MAC address: 00:9e:95:9b:56:16
> [  162.322356] rtl8192cu: Board Type 0
> [  162.322593] rtl_usb: rx_max_size 15360, rx_urb_num 8, in_ep 1
> [  162.322864] rtl8192cu: Loading firmware rtlwifi/rtl8192cufw_TMSC.bin
> [  162.344819] ieee80211 phy1: Selected rate control algorithm 'rtl_rc'
> [  162.391775] rtl8192cu: MAC auto ON okay!
> [  162.498403] rtl8192cu: Tx queue select: 0x05
> [  163.385799] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready
> [  164.175367] wlan0: authenticate with 00:25:9c:13:b0:84
> [  164.190122] wlan0: send auth to 00:25:9c:13:b0:84 (try 1/3)
> [  164.194594] wlan0: authenticated
> [  164.201239] wlan0: associate with 00:25:9c:13:b0:84 (try 1/3)
> [  164.207797] wlan0: RX AssocResp from 00:25:9c:13:b0:84 (capab=0x431
> status=0 aid=10)
> [  164.312904] wlan0: associated
> [  164.330618] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready
> [  164.399682] cfg80211: Regulatory domain changed to country: US
> [  164.399717] cfg80211:  DFS Master region: FCC
> [  164.399731] cfg80211:   (start_freq - end_freq @ bandwidth),
> (max_antenna_gain, max_eirp), (dfs_cac_time)
> [  164.399751] cfg80211:   (2402000 KHz - 2472000 KHz @ 4 KHz), (N/A,
> 3000 mBm), (N/A)
> [  164.399769] cfg80211:   (517 KHz - 525 KHz @ 8 KHz, 16
> KHz AUTO), (N/A, 1700 mBm), (N/A)
> [  164.399786] cfg80211:   (525 

Re: [beagleboard] posting to forum without being moderated

[Gerald Coley]

I just checked. It was posted 22 hours ago.

Gerald


On Thu, Sep 15, 2016 at 9:08 PM, Gerald Coley <ger...@beagleboard.org>
wrote:

> There are no pending posts. The post you just sent went through fine.
>
> We have turned off moderating all posts for the time being.
>
> If you are a registered member, then your post are not moderated.
>
> Gerald
>
>
> On Thu, Sep 15, 2016 at 8:58 PM, Andrew Kirch <trel...@trelane.net> wrote:
>
>> would someone please approve my post regarding the USB bus having to be
>> reset for wifi to work?
>>
>> On Wed, Sep 14, 2016 at 9:48 AM, Gerald Coley <ger...@beagleboard.org>
>> wrote:
>>
>>> Currently EVERYONE  is being moderated, even Robert Nelson and I. We
>>> have a SPAM issue we are trying to resolve.
>>>
>>> And yes, we have tried all allowable Google methods to resolve it, so we
>>> are waiting for it to die down.
>>>
>>> Gerald
>>>
>>> On Wed, Sep 14, 2016 at 8:36 AM, Robert Nelson <robertcnel...@gmail.com>
>>> wrote:
>>>
>>>> On Wed, Sep 14, 2016 at 8:17 AM, Andrew Goh <andrewg...@gmail.com>
>>>> wrote:
>>>> > is there any specific settings i can do so that i can post to the
>>>> forums
>>>> > without the posts / replies going into moderation? it is rather
>>>> frustrating
>>>> > as i'd not be able to review edit the post once submitted and i'd
>>>> need to
>>>> > await moderation turnaround which could take a while
>>>>
>>>> Then register/sign-up, it's listed somewhere on:
>>>>
>>>> https://groups.google.com/forum/#!categories/beagleboard
>>>>
>>>> Spam is an issue, thus moderation is required for "brand" new users..
>>>>
>>>> Regards,
>>>>
>>>> --
>>>> Robert Nelson
>>>> https://rcn-ee.com/
>>>>
>>>> --
>>>> For more options, visit http://beagleboard.org/discuss
>>>> ---
>>>> You received this message because you are subscribed to the Google
>>>> Groups "BeagleBoard" group.
>>>> To unsubscribe from this group and stop receiving emails from it, send
>>>> an email to beagleboard+unsubscr...@googlegroups.com.
>>>> To view this discussion on the web visit https://groups.google.com/d/ms
>>>> gid/beagleboard/CAOCHtYjar5CfNeQ-K668Wjen0of2dAHxWa%2BbPgmpk
>>>> jF0iM1FLA%40mail.gmail.com.
>>>> For more options, visit https://groups.google.com/d/optout.
>>>>
>>>
>>>
>>>
>>> --
>>> Gerald
>>>
>>> ger...@beagleboard.org
>>> http://beagleboard.org/
>>> gcol...@emprodesign.com
>>>
>>> --
>>> For more options, visit http://beagleboard.org/discuss
>>> ---
>>> You received this message because you are subscribed to the Google
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>>> gid/beagleboard/CAHK_S%2Bc8FNNHmDA5pMDw3VA81gU6%2B%3D-kfEY%3
>>> DkFGaC5SmrYhNQA%40mail.gmail.com
>>> <https://groups.google.com/d/msgid/beagleboard/CAHK_S%2Bc8FNNHmDA5pMDw3VA81gU6%2B%3D-kfEY%3DkFGaC5SmrYhNQA%40mail.gmail.com?utm_medium=email_source=footer>
>>> .
>>>
>>> For more options, visit https://groups.google.com/d/optout.
>>>
>>
>> --
>> For more options, visit http://beagleboard.org/discuss
>> ---
>> You received this message because you are subscribed to the Google Groups
>> "BeagleBoard" group.
>> To unsubscribe from this group and stop receiving emails from it, send an
>> email to beagleboard+unsubscr...@googlegroups.com.
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>> gid/beagleboard/CALA5tJJ4CErASfvmvTqws%3DJdBPhARrXbYVOU6O%2B
>> ARbgZBrmSJw%40mail.gmail.com
>> <https://groups.google.com/d/msgid/beagleboard/CALA5tJJ4CErASfvmvTqws%3DJdBPhARrXbYVOU6O%2BARbgZBrmSJw%40mail.gmail.com?utm_medium=email_source=footer>
>> .
>>
>> For more options, visit https://groups.google.com/d/optout.
>>
>
>
>
> --
> Gerald
>
> ger...@beagleboard.org
> http://beagleboard.org/
> gcol...@emprodesign.com
>
>


-- 
Gerald

ger...@beagleboard.org
http://beagleboard.org/
gcol...@emprodesign.com

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Re: [beagleboard] posting to forum without being moderated

[Gerald Coley]

There are no pending posts. The post you just sent went through fine.

We have turned off moderating all posts for the time being.

If you are a registered member, then your post are not moderated.

Gerald


On Thu, Sep 15, 2016 at 8:58 PM, Andrew Kirch <trel...@trelane.net> wrote:

> would someone please approve my post regarding the USB bus having to be
> reset for wifi to work?
>
> On Wed, Sep 14, 2016 at 9:48 AM, Gerald Coley <ger...@beagleboard.org>
> wrote:
>
>> Currently EVERYONE  is being moderated, even Robert Nelson and I. We have
>> a SPAM issue we are trying to resolve.
>>
>> And yes, we have tried all allowable Google methods to resolve it, so we
>> are waiting for it to die down.
>>
>> Gerald
>>
>> On Wed, Sep 14, 2016 at 8:36 AM, Robert Nelson <robertcnel...@gmail.com>
>> wrote:
>>
>>> On Wed, Sep 14, 2016 at 8:17 AM, Andrew Goh <andrewg...@gmail.com>
>>> wrote:
>>> > is there any specific settings i can do so that i can post to the
>>> forums
>>> > without the posts / replies going into moderation? it is rather
>>> frustrating
>>> > as i'd not be able to review edit the post once submitted and i'd need
>>> to
>>> > await moderation turnaround which could take a while
>>>
>>> Then register/sign-up, it's listed somewhere on:
>>>
>>> https://groups.google.com/forum/#!categories/beagleboard
>>>
>>> Spam is an issue, thus moderation is required for "brand" new users..
>>>
>>> Regards,
>>>
>>> --
>>> Robert Nelson
>>> https://rcn-ee.com/
>>>
>>> --
>>> For more options, visit http://beagleboard.org/discuss
>>> ---
>>> You received this message because you are subscribed to the Google
>>> Groups "BeagleBoard" group.
>>> To unsubscribe from this group and stop receiving emails from it, send
>>> an email to beagleboard+unsubscr...@googlegroups.com.
>>> To view this discussion on the web visit https://groups.google.com/d/ms
>>> gid/beagleboard/CAOCHtYjar5CfNeQ-K668Wjen0of2dAHxWa%2BbPgmpk
>>> jF0iM1FLA%40mail.gmail.com.
>>> For more options, visit https://groups.google.com/d/optout.
>>>
>>
>>
>>
>> --
>> Gerald
>>
>> ger...@beagleboard.org
>> http://beagleboard.org/
>> gcol...@emprodesign.com
>>
>> --
>> For more options, visit http://beagleboard.org/discuss
>> ---
>> You received this message because you are subscribed to the Google Groups
>> "BeagleBoard" group.
>> To unsubscribe from this group and stop receiving emails from it, send an
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>> gid/beagleboard/CAHK_S%2Bc8FNNHmDA5pMDw3VA81gU6%2B%3D-kfEY%
>> 3DkFGaC5SmrYhNQA%40mail.gmail.com
>> <https://groups.google.com/d/msgid/beagleboard/CAHK_S%2Bc8FNNHmDA5pMDw3VA81gU6%2B%3D-kfEY%3DkFGaC5SmrYhNQA%40mail.gmail.com?utm_medium=email_source=footer>
>> .
>>
>> For more options, visit https://groups.google.com/d/optout.
>>
>
> --
> For more options, visit http://beagleboard.org/discuss
> ---
> You received this message because you are subscribed to the Google Groups
> "BeagleBoard" group.
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> <https://groups.google.com/d/msgid/beagleboard/CALA5tJJ4CErASfvmvTqws%3DJdBPhARrXbYVOU6O%2BARbgZBrmSJw%40mail.gmail.com?utm_medium=email_source=footer>
> .
>
> For more options, visit https://groups.google.com/d/optout.
>



-- 
Gerald

ger...@beagleboard.org
http://beagleboard.org/
gcol...@emprodesign.com

-- 
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Re: [beagleboard] Re: expansion connector spec?

[Gerald Coley]

The layout for the first of two boards has just completed. We are working
on the second board layout now.

Gerald

On Wed, Sep 14, 2016 at 7:14 PM, Dennis Lee Bieber <wlfr...@ix.netcom.com>
wrote:

> On Wed, 14 Sep 2016 09:19:58 -0500, Gerald Coley
> <ger...@beagleboard.org> declaimed the following:
>
> >This is not a BeagleBone Black, not even close. This is a whole different,
> >complex and powerful beast. I am working on add on boards at the moment
> and
> >should have some things out soon. Hopefully this will help to somewhat
> >solidify an add-on board strategy. It is tough to make it as simple as the
> >BeagleBone Black. Way too many variables.
> >
> Maybe the first board should just be an I/O break-out board --
> something that provides lots of common 0.1" sockets/pins on which this
> system rides...
> --
> Wulfraed Dennis Lee Bieber AF6VN
> wlfr...@ix.netcom.comHTTP://wlfraed.home.netcom.com/
>
> --
> For more options, visit http://beagleboard.org/discuss
> ---
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> For more options, visit https://groups.google.com/d/optout.
>



-- 
Gerald

ger...@beagleboard.org
http://beagleboard.org/
gcol...@emprodesign.com

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Re: [beagleboard] expansion connector spec?

[Gerald Coley]

This is not a BeagleBone Black, not even close. This is a whole different,
complex and powerful beast. I am working on add on boards at the moment and
should have some things out soon. Hopefully this will help to somewhat
solidify an add-on board strategy. It is tough to make it as simple as the
BeagleBone Black. Way too many variables.

Gerald


On Wed, Sep 14, 2016 at 9:14 AM, Andrew Goh  wrote:

> thanks for clarifying, no worries, i think it is a good development
> nevertheless, i'd guess as with new boards it'd take some time for the
> community (and add-on/cape makers) to come up with the 'add-ons' capes etc
> which hopefully would become a new eco-system
>
> On Wednesday, September 14, 2016 at 9:51:56 PM UTC+8, Gerald wrote:
>>
>> It is not a custom part. It is a standard product offered by Hirose. I
>> tried using the connectors used on the BeagleBone Black. I could not pull
>> the boards apart. And there were signal integrity concerns on the SATA and
>> PCIe signals
>>
>> Gerald
>>
>> --
> For more options, visit http://beagleboard.org/discuss
> ---
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> 
> .
>
> For more options, visit https://groups.google.com/d/optout.
>



-- 
Gerald

ger...@beagleboard.org
http://beagleboard.org/
gcol...@emprodesign.com

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Re: [beagleboard] expansion connector spec?

[Gerald Coley]

It is not a custom part. It is a standard product offered by Hirose. I
tried using the connectors used on the BeagleBone Black. I could not pull
the boards apart. And there were signal integrity concerns on the SATA and
PCIe signals

Gerald


On Wed, Sep 14, 2016 at 8:30 AM, Andrew Goh <andrewg...@gmail.com> wrote:

> On Thursday, February 18, 2016 at 9:10:55 PM UTC+8, m...@yapatel.com
> wrote:
> > Hi -
> >
> > Is the part number/spec for the expansion connector available somewhere
> or still waiting for public release? Was unable to find anything with
> go-ogle.
>
> On Friday, February 19, 2016 at 1:04:52 AM UTC+8, Gerald Coley wrote:
> > Mating connector is Hirose FX18-60S-0.8SV15
> >
> >
> >
> >
> > Gerald
>
> it'd seem a little unfortunate that the connector is 'custom' but i'd
> guess there's little choice given the high density
> somewhat concerned if home / hobby interfacing patching circuits may be
> difficult
> the other thing would be how capes would evolve from here, nevertheless,
> those high-density connectors / interface is a good thing
> it packs a pci-express in there if i'm correct about it
>
> --
> For more options, visit http://beagleboard.org/discuss
> ---
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>



-- 
Gerald

ger...@beagleboard.org
http://beagleboard.org/
gcol...@emprodesign.com

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Re: [beagleboard] x15 expansion connectors

[Gerald Coley]

It is in the System Reference manual.
The connector for the X15  is also listed in the BOM, but you need the
mating connector for the one in the BOM.

Gerald

On Sun, Sep 11, 2016 at 10:06 AM, Andrew Goh <andrewg...@gmail.com> wrote:

> https://groups.google.com/forum/#!topic/beagleboard-x15/Pdp12O1TRnI
>
>>
>> Hi -
>>
>> Is the part number/spec for the expansion connector available somewhere
>> or still waiting for public release? Was unable to find anything with
>> go-ogle
>>
>  Gerald Coley
>
> Feb 19
> Mating connector is Hirose FX18-60S-0.8SV15
>
> 
> it'd seem a little unfortunate that a 'custom' connector needs to be used,
> but i'd guess it can't really be helped given the high density
> developing capes for it could be tough for a home hobbyist and i'd guess
> it could be rather expensive for commercial capes
>
> --
> For more options, visit http://beagleboard.org/discuss
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Re: [beagleboard] Gigabit Ethernet on X-15?

[Gerald Coley]

X15 supports dual 1G Ethernet.

Gerald


On Fri, Sep 9, 2016 at 12:49 AM, Rick Mann  wrote:

> I'm pretty sure the BBB only has 100 Mbps Ethernet. Does the X-15 support
> 1Gbps?
>
> Does anyone know of a small SBC that can sustain 1 Gbps? I'm thinking of
> making a speed test appliance.
>
> Thanks!
>
> --
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> rm...@latencyzero.com
>
>
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Re: [beagleboard] About the DDR3 memory in Rev C BOM (D2516EC4BXGGB)

[Gerald Coley]

The die is made by Micron.
Kingston buys the die from Micron.
Kingston packages and puts their name on it.
It is the same part as Micron.
Not timing changes required.

Gerald

On Thu, Sep 8, 2016 at 4:12 PM,  wrote:

> I have noticed that Rev C BOM mentions a Kingston DDR3 D2516EC4BXGGB.
> Any explanations for that?
>
> Is this part a direct replacement of current Micron memory? Does it require
> timing (bootloader) changes?
>
> Thanks,
> Ezequiel
>
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Re: [beagleboard] GPIO Voltage limits?

[Gerald Coley]

3.3V on GPIO pins..

There are no ADC pins.

HDMI is 1.8V but those are specific outputs.

SATA is differential.

PCI is 1.5V differential

Gerald


On Wed, Sep 7, 2016 at 1:06 PM, Sam Brown  wrote:

> What are the voltage limits on the X15's GPIO pins?
>
> 3.3V, same as the BBB? Does it have the 1.8V in limit on any pins, like
> the BBB has on its ADC pins?
>
> I've been pouring through the SRM & Quick Start Guide, and haven't found
> this info yet. Not on the product webpage, either. Shouldn't info needed to
> not fry your board be prominent?
>
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Re: [beagleboard] X15 board layout files in ASCII format

[Gerald Coley]

Sorry! You want the X15. I will try and get something out in a couple of
weeks or so. Loaded at the moment.

Gerald


On Tue, Aug 16, 2016 at 11:50 AM, Gerald Coley <ger...@beagleboard.org>
wrote:

> Why not start with the version that is already on the WIKI?
>
> http://www.elinux.org/Beagleboard:BeagleBoneBlack#
> LATEST_PRODUCTION_FILES_.28C.29
>
> Gerald
>
>
> On Tue, Aug 16, 2016 at 10:05 AM, <pete...@gmail.com> wrote:
>
>> is it possible to get the X15 board layout files in the ASCII format or
>> does anyone can make them available , using Altium ver 15 / 16 and it not
>> possible to import the *.brd file without Allegro installed ?
>>
>> Thanks, Pete
>>
>> --
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>
>
>
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>
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Re: [beagleboard] X15 board layout files in ASCII format

[Gerald Coley]

Why not start with the version that is already on the WIKI?

http://www.elinux.org/Beagleboard:BeagleBoneBlack#LATEST_PRODUCTION_FILES_.28C.29

Gerald


On Tue, Aug 16, 2016 at 10:05 AM,  wrote:

> is it possible to get the X15 board layout files in the ASCII format or
> does anyone can make them available , using Altium ver 15 / 16 and it not
> possible to import the *.brd file without Allegro installed ?
>
> Thanks, Pete
>
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Re: [beagleboard] Re: Packages for VGA converter display

[Gerald Coley]

The VGA signals are not supported on the HDMI signal if you are using just
the connector adapter..

http://www.elinux.org/Beagleboard:BeagleBone_Black_Accessories#HDMI_Adapters


Gerald


On Tue, Aug 16, 2016 at 7:28 AM, Raulp  wrote:

> I can see the output if I connect a micro HDMI cable(but not till the
> login screen).
> SSH'ing is the last resort .It works anyway !I just wanted to use for what
> I have paid - a VGA converter :(  and a micro HDMI connector which connects
> to this.
>
> On Tuesday, August 16, 2016 at 4:44:50 PM UTC+5:30, Dennis Lee Bieber
> wrote:
>>
>> On Tue, 16 Aug 2016 02:19:03 -0700 (PDT), Raulp
>>  declaimed the
>> following:
>>
>> >Hello,
>> >I am using micro HDMI(connected to micro HDMI of BBB) to Male HDMI cable
>> on
>> >BBB which I have inserted to female HDMI to VGA converter which is
>> >connected to my VGA Monitor.But I cant see anything except the first few
>> >logs after that it goes black.
>>
>> As I recall, that's what mine do since I flashed the November
>> Wheezy on
>> them. Since it doesn't like my 16:10 aspect monitor I usually just SSH
>> into
>> it from my Win7 box... My 16:9 TVs, which it will work on, are too far
>> from
>> the router for my to have network connectivity when on the TV.
>>
>> Have you tried moving a mouse to see if you have a pointer
>> somewhere?
>>
>> On mine, the screen has no logo, no task/icon bar. Just a
>> 
>> menu with options for a console/terminal window and for a web browser.
>> --
>> Wulfraed Dennis Lee Bieber AF6VN
>> wlf...@ix.netcom.comHTTP://wlfraed.home.netcom.com/
>>
>> --
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Re: [beagleboard] Re: How to know which beagleblackBone version I am using?

[Gerald Coley]

Typically it is printed on the big white label on the side of the black
expansion connector.

Gerald


On Tue, Aug 16, 2016 at 6:15 AM, Dennis Lee Bieber 
wrote:

> On Mon, 15 Aug 2016 21:25:39 -0700 (PDT), Raulp
>  declaimed the
> following:
>
> >
> >Hi,
> >How can I know from the command prompt which BBB version(Rev A,B or C?) I
> >am using?Or by looking at its PCB?
>
> http://elinux.org/Beagleboard:BeagleBoneBlack#Board_Revisions_and_Changes
> --
> Wulfraed Dennis Lee Bieber AF6VN
> wlfr...@ix.netcom.comHTTP://wlfraed.home.netcom.com/
>
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Re: [beagleboard] Releasing the on-board EEPROM on i2c-0 / 0x50 from Kernel control?

[Gerald Coley]

You will need to modify the hardware to remove the write protect before you
can do any writes..

Gerald

On Tue, Aug 9, 2016 at 2:41 PM, Phil Mills  wrote:

> I'd like to be able to read/write data from the BBB's on-board EEPROM
> programatically using the ioctl(...) interface just like any other i2c
> eeprom my software might be asked to go deal with.
>
> Of course the kernel claims that device for itself pretty quickly upon
> boot which means I can't get to it that way (fails to set address, device
> in use).
>
> Is there a relatively simple way of getting the Kernel to release that
> device ?
>
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Re: [beagleboard] When I connect the ethernet cable the board freezes.

[Gerald Coley]

I bow to the expert and throw away any calculations based on worst case
scenarios and any experience I have had with 1000s of boards.

Some may indeed work. A lot will not. I choose to err on the side of will
not.

Gerald


On Mon, Aug 8, 2016 at 3:20 PM, William Hermans <yyrk...@gmail.com> wrote:

> USB power is enough to power the ethernet. I've been doing this since 2013
> . . .
>
> On Mon, Aug 8, 2016 at 1:20 PM, Gerald Coley <ger...@beagleboard.org>
> wrote:
>
>> USB power is not enough to power the Ethernet.
>>
>> Gerald
>>
>> On Mon, Aug 8, 2016 at 3:14 PM, evilwulfie <evilwul...@gmail.com> wrote:
>>
>>> get a 2 amp 5v power supply to power your board.
>>>
>>> some times if you try to power from usb there is not enough power to run
>>> everything.
>>>
>>>
>>>
>>>
>>> On 8/8/2016 1:12 PM, Denis Cosmin wrote:
>>>
>>> Via USB cable. It's my first board, never owned any other board before.
>>>
>>> On Monday, August 8, 2016 at 9:59:30 PM UTC+3, Wulf Man wrote:
>>>>
>>>> how are you powering the board
>>>>
>>>> On 8/8/2016 11:54 AM, Denis Cosmin wrote:
>>>>
>>>> Yesterday the board didn't freeze. Today I tried to connect the
>>>> ethernet cable to the board and some USR leds lighted up and remained
>>>> stuck. I've lost the ssh connection and the board became unresponsive. If I
>>>> disconnect the cable quickly the board resumes it's activity, if I wait to
>>>> much it freezes.
>>>> --
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>>
>>
>>
>> --
>> Gerald
>>
>> ger...@beagleboard.org
>> http://beagleboard.org/
>> gcol...@emprodesign.com
>>
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Re: [beagleboard] BeagleBoard-X15 with IEEE 1588 (PTP) PHY chips

[Gerald Coley]

We have no plans to do so at this time. The space on the board is very
tight and this device is larger that what is there now. It would take a lot
of work and the changing of the board dimensions to get it in.

Gerald

On Thu, Jul 28, 2016 at 1:25 AM,  wrote:

> Hello,
>
> The specs for the new X15 are quite impressive. However I think it is
> missing one thing: PHY chips that support IEEE 1588, i.e. Precision Time
> Protocol (PTP). For example: http://www.ti.com/product/DP83640 which is
> TIs DP83640 chip. I think this would open up the board to even more
> developers, not just myself. The X15 could really benefit from using PTP to
> sync with the outside world.
>
> I am currently looking for a dev board for prototyping.
> The BeagleBoard-X15 fits my needs perfectly, except for the lack of IEEE
> 1588 supporting PHYs.
>
> Here are my questions:
> 1. Is there any possibility that this will be incorporated into the design
> of the X15?
> 2. How hard is the process of adding IEEE 1588 support to the X15
> (hardware-wise)? It's not as simple as replacing the chip, is it? (seems
> too easy to be correct)
>
> LR
>
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Re: [beagleboard] BeagleBoard-X15 with IEEE 1588 (PTP) PHY Chips

[Gerald Coley]

We have no plans to do so at this time. The space on the board is very
tight and this device is larger that what is there now.

Gerald

On Thu, Jul 28, 2016 at 2:09 AM,  wrote:

> The BeagleBoard-X15 has quite an impressive set of features. However I
> think that it is missing one thing: IEEE 1588 Precision Time Protocol (PTP)
> PHY chips. For example, http://www.ti.com/product/DP83640 which is
> TI's DP83640 PHY chip.
>
>  I believe the board as is will be great for doing real-time tasks within
> itself and its peripherals. However it lacks the ability to sync with
> real-time systems where precision is key.
>
> I think adding this to the design will not only be beneficial to me, but
> also to many other developers. Think of all the uses for PTP (Industrial
> Automation, Test & Measurement, *Robotic Control*, etc.)
>
> *BeagleBoard, do you think there is a possibility of incorporating this
> into your design?* If not, I'd like to put together a group of
> independent individuals to make this happen (both hardware-wise and
> software-wise).
>
> LR
>
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Re: [beagleboard] BBB without ethernet

[Gerald Coley]

I am sure that could be arranged if the quantities are enough.

Gerald


On Tue, Jul 26, 2016 at 10:41 AM,  wrote:

> What about a manufacturer who purchases BBs in quantity?
>
> On Thursday, July 16, 2015 at 9:56:26 AM UTC-4, Gerald wrote:
>>
>> If you need it removed, you can take the open source material and build
>> it yourself. We are not in a position to build 1 off boards.
>>
>> Gerald
>>
>> On Thu, Jul 16, 2015 at 3:09 AM, 'Eliah Ninyo' via BeagleBoard <
>> beagl...@googlegroups.com> wrote:
>>
>>> can the BBB board manufacturer remove the ethernet RJ45 connector?
>>>
>>>
>>> i need it for may device.
>>>
>>> i will use ethernet extension for debug use at the lab. but for
>>> productioni don't need it...
>>>
>>> --
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>>
>>
>>
>> --
>> Gerald
>>
>> ger...@beagleboard.org
>> http://beagleboard.org/
>>
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Re: [beagleboard] FCC Conducted Emissions Failure

[Gerald Coley]

When doing this, you need a good power supply with a choke on it and a good
Ethernet cable, one that is shielded costs more money than your typical
cable. I have no idea what your cape is doing, Having it in a case can
help, but the real issues are related to the cables that come into and out
of the enclosure.

Gerald

On Mon, Jul 25, 2016 at 7:03 AM, David Accadia 
wrote:

>
> We are planning to use the Beagle Bone black in a commercial product,  We
> have designed a custom cape and put the whole thing inside an aluminum
> housing.  The system has been sent off for EMC testing but unfortunately
> the testing lab has failed conducted emission. There where a lot of peeks
> but the following frequencies failed
>
>
> 180MHz
> 203MHz
> 228MHz
> 250MHz
> 288MHz
> 312MHz
> 372MHz
> 384MHz
> 396MHz
> 420Mhz
> 468MHz
> 480MHz
> 875MHz
> 1000MHz
>
>  To try and isolate the issues we've acquired a spectrum analyzer and a
> set of near field probes.  From my testing with the near field probes It
> seems that most of the failed frequencies are coming from the beagle bone
> black.
>
> I've noticed the 1000MHz and 250MHz peeks (which where the biggest) seemed
> to go when the Ethernet cable was is removed.  Many of the other peeks
> seemed to match up with the peeks on the beagle bone black FCC report. (
> http://elinux.org/Beagleboard:BeagleBoneBlack#Regulatory_Compliance_Documents)
> The once that don't also seem to go when the beagle bone is powered off.
> The system sits inside an extruded aluminum housing and the end plates are
> actually PCBs with single plane of copper. So there is lot I can still do
> to tighten up the enclosure.  Although based on the report I would have
> expected the BBB to pass outside an enclosure.
>
>
>  Has any one else had similar experience with  the beagle bone black and
> EMC problems? And how did you solve them?
>
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Re: [beagleboard] beaglebone white doesn't work when powered from the barrel connector

[Gerald Coley]

5V

On Mon, Jul 18, 2016 at 9:20 AM,  wrote:

> first thanks for your reply.
>
> i am measuring without the BB connected since i want to know if i am able
> to provide the required voltage..Also if i am not mistaken the BB white has
> a voltage regulator so there is no reason to count with the BB connected
> because there will be a voltage drop if i supply more (but not too much).
> Am i wrong?
> In any case i can give it a go and measure with the BB connected..
> But again..does anyone know what is the supposed voltage to be supplied?Is
> it the one i mentioned in my previous post?(5V +/-.1 ? ) Cause as i have
> already said it seems that my bb works when provided with 5.26V and not
> with 5V..(hope i won't destroy the board..)
>
> Thanks again
>
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Re: [beagleboard] reliability issues with Beaglebone Blacks, various failures

[Gerald Coley]

At this point all I can say is that I did not design these boards for your
application and therefore I cannot guarantee that it will do what you need
it to do.

>From what little you have said about your application, it sounds like
industrial versions would be preferable.

I would need to see a detailed schematic of your design to see if there
were any issues in your application and use of the board as designed..

There can be a variance across different boards depending on what corner
cases you might be hitting. It could be the ones that are working fine are
working better than they should be as opposed to the ones that fail not
working as good as they should be.

Gerald


On Thu, Jul 14, 2016 at 4:40 PM, John Stoner  wrote:

> In our lab we have 8-9 Beaglebone Black units. We are using them to
> control high intensity lights, with circuits in the 7A/9V neighborhood. The
> circuits are simple, using mosfets to control the high power circuits.
> There is water in our environment but we protect our electronics pretty
> well, through both design and procedure. It's warm (~80F) but not
> particularly humid. We haven't really measured the humidity but I'm
> reasonably comfortable here.
>
> We've had three of our boards fail in different ways:
>
> One is an element14 board that boots ok, but reproducibly gives a
> mysterious error on install from source of Python 2.7.11 (a requirement for
> us, long ugly story). I've tried to reflash with an SD card and it seems
> unresponsive whether I hold down the S2 button or not. Damaged SD card
> socket? Linux does see the SD card's filesystem. It just refuses to boot
> from it. Maybe a damaged S2 button?
>
> Another element14 one seems to overheat. With an IR camera, we've seen the
> power regulator spike over 60C. It has frozen up on us a couple times if we
> let it run--lights stop blinking, network goes unresponsive, but does not
> appear to power off.
>
> Another has a Beaglebone logo with the text ''beagleboard.org'
> silkscreened on it (CircuitCo? It's close but not identical to the logo I
> see on their board on Adafruit). It shut down mysteriously. W have rebooted
> a couple times since and seen diminishing uptimes. Most recently it didn't
> finish rebooting at all.
>
> The rest seem to run OK. We have had other failures related to other
> electronics. These ones seem hardware related, within the BBB. These have
> all been bought in 2016, I think. We've bought them through Adafruit and
> Amazon when they were out of stock.
>
> A few questions come to mind:
>
> 1. we are looking at scaling up at some point. 35%-ish failure rates for
> microcontrollers over six months are not going to work for us in the long
> term. *Is this normal for Beaglebone Blacks?* We already handle these
> units pretty carefully. Maybe we could do more, though it's hard to say
> what. If we can't get it under control we might want to find another board
> to standardize on. The BBB has a lot of features we need--we'd prefer not
> to leave it if possible.
>
> 2. The industrial BBBs seem to address higher temperature, though we don't
> expose ours to extremes of temperature (that they don't generate on their
> own anyway). *Might the higher quality parts provide higher reliability
> in general?*
>
> 3. *Also, could we expect better customer service with industrial BBBs? *
>
> 4. *What could we expect in general with industrial units?*
>
>
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Re: [beagleboard] does beagleboard X15 support 4k HDMI output?

[Gerald Coley]

No. 1920 x 1080 60FPS.

Gerald


On Wed, Jul 13, 2016 at 4:35 PM, Yicheng Bai  wrote:

> Hi,
>
> does beagleboard X15 support 4k HDMI output?
>
> Thanks.
>
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Re: [beagleboard] CPU and Enviroment Temperatur

[Gerald Coley]

Try measuring with a thermometer.

Gerald

On Mon, Jul 11, 2016 at 9:55 AM, Fohnbit  wrote:

> I´m not sure how exact the value is:
> cat  /sys/class/hwmon/hwmon0/device/temp1_input
>
> Because when I touch the surface, it is just a little warm.
>
> The Beaglebone is most time in idle mode:
> BBB1 (in housing) 60°C:
> 16:41:22 up 13 days,  2:13,  1 user,  load average: 0.29, 0.24, 0.18
>
> BBB2 (on the table) 56°C:
>  14:41:09 up 3 days, 21:41,  1 user,  load average: 0.04, 0.05, 0.05
>
>
> A fan I don´t want to build in. I try to made holes at the bottom side of
> the closed housing.
>
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Re: [beagleboard] CPU and Enviroment Temperatur

[Gerald Coley]

Environment is important, but if there is no venting in the box, then the
heat can stay in the box and it can build up. Not a good condition if it
can be avoided. The BBB is not industrial rated.

56 is a little warm as well. But that depends on what you are using it for
and how much time is spent running full speed. The heat comes out the
bottom of the board, so just laying in on a table is like putting it in a
box.

Gerald

On Mon, Jul 11, 2016 at 9:20 AM, Fohnbit  wrote:

> Hello Gerald,
>
> it is in a closed Din Rail housing and in a electrical distributor box.
> In the Box, the enviroment are 31.5°C ... so not sooo high.
>
> But also the Beaglebone on my desk, complete open, has 56°C
>
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Re: [beagleboard] CPU and Enviroment Temperatur

[Gerald Coley]

It is high for just sitting on a table in open air.

Gerald


On Mon, Jul 11, 2016 at 9:01 AM, Fohnbit  wrote:

> Hello,
>
> are this temperature for a BeagleBone ok?:
> CPU: 60°C
> Enviroment: 31.5°C
>
> The CPU I get with:
> cat  /sys/class/hwmon/hwmon0/device/temp1_input
>
> 60°C seems a little bit high, or not?
>
> Thank you!
>
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Re: [beagleboard] Fwd: SYS_RESETIN / P9-10 Not functioning ?

[Gerald Coley]

AM335x is the TRM name. But I was afraid I would get jumped because that is
not the processor used, instead it is the AM3358.

Look up AM3358 and select the TRM listed on that page.

Gerald


On Tue, Jul 5, 2016 at 2:23 PM, William Hermans  wrote:

> *In the AM3358 TRM. It is an interrupt input to the processor. The SW can
>> cleanup before making it an output to reset the board. So, if the SW does
>> not handle it, it does not reset anything.*
>>
>> *Gerald*
>>
>
> Thanks Gerald.
>  I kind of figured already that about the software aspect. I'm toggling
> the pin every 5 seconds ( 5, So I can check with a multi-meter ) from an
> external MCU. And the board just sits there like a dumb brick . . .no
> reaction.
>
> AM3358 TRM ? Is that in addition to the AM335x TRM ? The latter here is
> what I've searched through. Which by the way for SYS_RESET no search hits
> in the whole 5k pages of document . . . That's a bit frustrating. The SRM
> actually turned up several hits, but did not really discuss anything
> definitive. Then, as Charles pointed out after your post . . . I always
> forget about the datasheet . . . but forgot that TI loves spreading
> documentation out over several files . . .
>
> On Tue, Jul 5, 2016 at 12:04 PM, Charles Steinkuehler <
> char...@steinkuehler.net> wrote:
>
>> On 7/5/2016 1:29 PM, William Hermans wrote:
>> > @Gerald
>> >
>> > So hey where can I find good official documentation on SYS_RESETIN ?
>> I've poured
>> > over the SRM, and the TRM, and have not really found any clear
>> documentation on
>> > the subject matter. Also, what little the documentation does mention
>> anything,
>> > names are confused between SYS_RESET, SYS_RESETIN, RESET_OUT, or RSTn .
>> . . How
>> > does one make sense of all this ?
>>
>> Section 8.1.7 of the TRM "Reset Management", with some additional
>> details in the data sheet (sprs717).  It can be confusing, since the
>> physical reset pin (nRESETIN_OUT) is both an input and an output, but
>> the individual RESET_IN and RESET_OUT signals are "broken out" on-chip
>> and have various sources/destinations which are discussed individually
>> in the TRM.
>>
>> Figure 8-20 "External System Reset" in the TRM (and the nearby related
>> text) might help.
>>
>> --
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>> char...@steinkuehler.net
>>
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Re: [beagleboard] Fwd: SYS_RESETIN / P9-10 Not functioning ?

[Gerald Coley]

In the AM3358 TRM. It is an interrupt input to the processor. The SW can
cleanup before making it an output to reset the board. So, if the SW does
not handle it, it does not reset anything.

Gerald


On Tue, Jul 5, 2016 at 1:29 PM, William Hermans  wrote:

> @Gerald
>
> So hey where can I find good official documentation on SYS_RESETIN ? I've
> poured over the SRM, and the TRM, and have not really found any clear
> documentation on the subject matter. Also, what little the documentation
> does mention anything, names are confused between SYS_RESET, SYS_RESETIN,
> RESET_OUT, or RSTn . . . How does one make sense of all this ?
>
> On Tue, Jul 5, 2016 at 11:22 AM, William Hermans 
> wrote:
>
>> I guess to answer my own question:
>> https://groups.google.com/forum/#!topic/beagleboard/ogyyRufIVVs The post
>> by David Belohrad is very descriptive. Especially the part where
>> grounding PWR_BTN will completely turn off the PMIC. Which a lot of people
>> seem to be having issues with completely turning off their boards.
>>
>> On Tue, Jul 5, 2016 at 10:17 AM,  wrote:
>>
>>>
>>>
>>> On Tuesday, July 5, 2016 at 10:03:07 AM UTC-7, yyr...@gmail.com wrote:

 SYS_RESETIN Does not seem to function as I would expect it to. I would
 expect that toggling this pin would somehow cause a system reset. It does
 not. Can anyone shed any light on the functionality of this pin ? I do not
 mind reading so if all one has is a link to pertinent information that is
 fine too. For completeness:

 debian@beaglebone:~/nfs$ config-pin -l P9.10
 Pin is not modifyable: P9.10 RSTn
 debian@beaglebone:~/nfs$ cat /etc/dogtag
 BeagleBoard.org Debian Image 2016-06-19
 debian@beaglebone:~/nfs$ uname -r
 4.4.12-ti-r31

 I had considered a different kernel may behave differently. Then until
 I ran config-pin on the actual pin, I thought perhaps the pin was muxable.
 Apparently it's not ;)  I would appreciate any information anyone would
 like to share on the subject :)

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Re: [beagleboard] BBB startup current

[Gerald Coley]

Thanks for the words. But, I think my days are numbered here.

Gerald


On Mon, Jul 4, 2016 at 6:17 PM, William Hermans <yyrk...@gmail.com> wrote:

> So, we bit our lip *
>
> On Mon, Jul 4, 2016 at 4:16 PM, William Hermans <yyrk...@gmail.com> wrote:
>
>> @Gerald
>>
>> Actually, my buddy and I would have bought the white, if that's all that
>> was available. So, much to our surprise when the beaglebone black was
>> announced . . . we immediately jumped on the pre-order list for two boards
>> . . .
>>
>> Would we have prefered you did one thing, or another slightly differently
>> ?  Sure ! But as it is, you saved us 50% right away, by doing what you did
>> with the BBB versus the BBW. So . . . we nite our lip. Then implement what
>> we have to on the side to make the BBB work for our own application. Too
>> bad many youngsters would prefer to complain about what the board *ISNT*
>> versus what the board *IS*.
>>
>> On Mon, Jul 4, 2016 at 4:09 PM, William Hermans <yyrk...@gmail.com>
>> wrote:
>>
>>> When you design low cost hardware, you have to make certain decisions to
>>>> get the cost down.
>>>>
>>>> 1) As few components as possible.
>>>> 2) Limit the application. Only one application,
>>>> 3) Push as much cost outside, for example the power supply.
>>>> 4) Lowest cost components.
>>>> 5) Limit the features.
>>>> 6) Cut the profit.
>>>>
>>>> Yes, there are several things I could have done different. Many of
>>>> these no one has even identified. But if I had, you would not have bought
>>>> it because it cost too much. After all hardware is supposed to be cheap.
>>>> That is where the value is, in the price. Not the value..
>>>>
>>>> Nobody asked how I took it from $89 to $49. They just bought them up
>>>> and complained that it didn't do all the things they wanted it to do for
>>>> $49.
>>>>
>>>> If anyone of you want to change the design, add more features, make it
>>>> more robust, add more cost, increase the price, manufacture it and sell it,
>>>> by all means, go ahead. I am sure there will b a few folks that value the
>>>> hardware and recognize that value, and will pay for it.
>>>>
>>>> But, I suspect the majority will complain that it is too expensive and
>>>> will stay with the BBB and instead ask how to flash the latest image in the
>>>> BBB and why does my my GPIO does not work..
>>>>
>>>
>>> Exactly, or close enough to what I was getting at. So Instead of me
>>> saying: "Pay no attention to John, as he tends to pontificate on others
>>> comments, and has no idea what the hell he is talking about." Let me just
>>> say that I figured Gerald had the sole purpose of designing this board to
>>> work "good enough" while remaining within a specified price range. e.g. it
>>> works, and it's cheap.
>>>
>>> On Mon, Jul 4, 2016 at 4:02 PM, Gerald Coley <ger...@beagleboard.org>
>>> wrote:
>>>
>>>> When you design low cost hardware, you have to make certain decisions
>>>> to get the cost down.
>>>>
>>>> 1) As few components as possible.
>>>> 2) Limit the application. Only one application,
>>>> 3) Push as much cost outside, for example the power supply.
>>>> 4) Lowest cost components.
>>>> 5) Limit the features.
>>>> 6) Cut the profit.
>>>>
>>>> Yes, there are several things I could have done different. Many of
>>>> these no one has even identified. But if I had, you would not have bought
>>>> it because it cost too much. After all hardware is supposed to be cheap.
>>>> That is where the value is, in the price. Not the value..
>>>>
>>>> Nobody asked how I took it from $89 to $49. They just bought them up
>>>> and complained that it didn't do all the things they wanted it to do for
>>>> $49.
>>>>
>>>> If anyone of you want to change the design, add more features, make it
>>>> more robust, add more cost, increase the price, manufacture it and sell it,
>>>> by all means, go ahead. I am sure there will b a few folks that value the
>>>> hardware and recognize that value, and will pay for it.
>>>>
>>>> But, I suspect the majority will complain that it is too expensive and
>>>> will stay with the BBB and instead ask how to fla

Re: [beagleboard] BBB startup current

[Gerald Coley]

 Hmmm, well, perhaps (although not required) it might be nice to know
> > what the engineering limitations are of the design.
> >
> > I've seen 1) the ones I know about, and 2) the ones I haven't found
> > out yet... and 3) the ones people are going to have to tell me
> > about...
> >
> > and I do like paranoid designs.
> >
> > Harvey
> >
> >
> >> 4) While I have provided Gerald input into both the BBB and
> BeagleBoard-x15 designs, I ultimately defer to his judgement because he has
> the track record or having designed several products that are very
> successful.
> >>
> >> From my prospective, the BBB design is good, but your input was none
> the less valuable.
> >>
> >> Regards,
> >> John
> >>
> >>
> >>
> >>
> >>> On Jul 4, 2016, at 2:11 PM, William Hermans <yyrk...@gmail.com> wrote:
> >>>
> >>> kzsoltkzsolt,
> >>>
> >>> I would like to point out to you that you're talking to *the* person
> who designed the beaglebones, who also used to work for Texas Instruments
> at some point in his career. Someone who has made his designs free of
> charge to the public, which he has made perfectly clear to you in these
> post that you're free to change and use for your own personal use.
> >>>
> >>> So, telling him things, he probably already knows, in hopes of making
> yourself looks good. Actually make you look like a "know it all". e.g. it
> doesn't make you look good.
> >>>
> >>> SO perhaps you should realize that Gerald is probably well aware of
> what you're trying to discuss here, but is unwilling to change for various
> reasons. Reason, that you, I, or the next person do not need to understand.
> Because we can change to designs to our own liking if we so wish.
> >>>
> >>> On Mon, Jul 4, 2016 at 1:55 PM, Gerald Coley <ger...@beagleboard.org
> <mailto:ger...@beagleboard.org>> wrote:
> >>> Thank you for your feedback.
> >>>
> >>> Gerald
> >>>
> >>> On Mon, Jul 4, 2016 at 3:18 PM, <kzsoltkzs...@gmail.com  kzsoltkzs...@gmail.com>> wrote:
> >>> First of all making changes on design "tomorrow" is irresponsible, so
> I never request it. But good to know where is some "leak" in design. For
> example it is help to make workaround.
> >>>
> >>> "TI did not write that specification"
> >>> No, but use it in all reference design. See TI TPS20x1 PDS application
> information. See for example TPS2051 docu Fig 33.
> >>>
> >>> "If you put the CAP after the switch then ..."
> >>> Then why CAP placed OUT of PDS in all TI application information?
> >>> Because PDS has soft start feature which prevent overload IN (BBB SYS
> power rail). See for example TPS2051 docu Fig 4 and 8.
> >>> Fig 8 is perfect draw for this. The soft start feature limit charge of
> 100uF to 0,5A, therefore current never exceed USB1 and 2 current limit,
> therefore no dip on IN.
> >>> This is one main function of PDS.
> >>>
> >>> "I did not design the board for your application"
> >>> It is not required. But during research work to specify our problem I
> found many topic where users discover mysterious problems with power
> supply, and try to found a right one for BBB. This can be originated from
> startup current peak.
> >>>
> >>>
> >>> --
> >>> For more options, visit http://beagleboard.org/discuss <
> http://beagleboard.org/discuss>
> >>> ---
> >>> You received this message because you are subscribed to the Google
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> an email to beagleboard+unsubscr...@googlegroups.com beagleboard+unsubscr...@googlegroups.com>.
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> https://groups.google.com/d/msgid/beagleboard/b974f98a-0cff-4380-af1f-9ce5db9e199f%40googlegroups.com
> <
> https://groups.google.com/d/msgid/beagleboard/b974f98a-0cff-4380-af1f-9ce5db9e199f%40googlegroups.com?utm_medium=email_source=footer
> >.
> >>>
> >>> For more options, visit https://groups.google.com/d/optout <
> https://groups.google.com/d/optout>.
> >>>
> >>>
> >>>
> >>> --
> >>> Gerald
> >>>
> >>> ger...@beagleboard.org <mailto:ger...@beagleboard.org>
> >>> 

Re: [beagleboard] Re: BBB startup current

[Gerald Coley]

Thank you for your feedback.

Gerald

On Mon, Jul 4, 2016 at 3:18 PM,  wrote:

> First of all making changes on design "tomorrow" is irresponsible, so I
> never request it. But good to know where is some "leak" in design. For
> example it is help to make workaround.
>
> "TI did not write that specification"
> No, but use it in all reference design. See TI TPS20x1 PDS
> application information. See for example TPS2051 docu Fig 33.
>
> "If you put the CAP after the switch then ..."
> Then why CAP placed OUT of PDS in all TI application information?
> Because PDS has soft start feature which prevent overload IN (BBB SYS
> power rail). See for example TPS2051 docu Fig 4 and 8.
> Fig 8 is perfect draw for this. The soft start feature limit charge of
> 100uF to 0,5A, therefore current never exceed USB1 and 2 current limit,
> therefore no dip on IN.
> This is one main function of PDS.
>
> "I did not design the board for your application"
> It is not required. But during research work to specify our problem I
> found many topic where users discover mysterious problems with power
> supply, and try to found a right one for BBB. This can be originated from
> startup current peak.
>
> --
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gcol...@emprodesign.com

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Re: [beagleboard] Re: BBB startup current

[Gerald Coley]

The USB specification requires 100uF on the USB ports. TI did not write
that specification. Trust me. I know.

If you put the CAP after the switch then it tends to pull down the 5V input
when you activate the USB power, something about charging that cap. It
works better before the switch as it prevents a dip on the 5V rail, which
caused issues with the PMIC, power rail going low after power up.

I am not going to make any changes to the design. Fell free to convince the
Green people to change their design.

As to your specific application, I did not design the board for your
application. I did however give it to you for free. Feel free to make
whatever changes you need for your application and build you own board. I
think the statment on the first page of the schematic is self explanatory.

Gerald

On Sun, Jul 3, 2016 at 7:02 AM,  wrote:

> "And as we also say, use a good power supply."
> This was originator of the problem. At first time we try to use medical
> approved 4A PWS.But this type has a fast current protection circuit, which
> detect 1ms 4A current peek as short circuit.
> So our advise is to use middle categhory PWS (we have success with MW
> GS15B-1P1J).
>
> "we have never lost a TPS5217C due to this issue"
> This is understandable beacuse average application is one BBB alone. This
> require 2A PWS which have no chance to harm TPS in this way.
> But in case of our special application more 5VDC powered device work
> together. This can be 2 or more BBB and more other device. This is why we
> try to use 4A or higher current PWS. This can demage TPS at startup.
>
> "I am not sure how to prevent caps from needing to be charged"
> You dont need it!
> First what need to be learn by power rail diesigner is the rule:
> capacitive load on output of power regulator is very sensitive area. This
> is why power regulator manufacturer (including TI) using pages to explain
> its calculation.
> Loading reagulator with high/low/good/bad capcitor have diffrent effect to
> stabilized power rail.
> At first impression 100uF at position C34 is very high for regulator
> output (ext PWS). The 22uF with ESR=20mOhm (TI rec.) limit
> startup peak to normal value.
> Moreover I cant known philosophy of USB host interface designer, why need
> 100uF at IN of PDS? All AN of TPS20x1 PDS are recomend 0,1 to 10uF at this
> position except "Typical Hot-Plug Implemantation" where 1000uF applied. But
> this is not match, beacuse you cannot Hot-Plug USB host interface to BBB
> beacuse it is hardwired.
> I think it is some missplacing of this capacitor. USB 1.1 require ~100uF
> at downsteram port. But this capcitor must be connceted at output of
> TPS20x1 not at input of. This provide a soft charge for system power rail.
> At input need just <=10uF.
>
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Re: [beagleboard] Re: BBB startup current

[Gerald Coley]

OF all the board we have shipped, we have never lost a TPS5217C due to this
issue. In fact, I think we have only lost maybe 5 TPS65217C devices total
in 4+ years.

And as i said, you have to charge up those caps. I am not sure how to
prevent caps from needing to be charged.

And as we also say, use a good power supply. That sometimes means not the
cheapest ones.

The makers of the Green are certainly free to add whatever they like to
their design.

.
Gerald

On Sat, Jul 2, 2016 at 8:26 AM,  wrote:

> Before I forgot.
>
> TPS not limit output capacitors, but recommend 22+10+10+10+10=62 uF. BBB
> use 100+10+10+10+10+10=140 uF. This is more than twice than recommended.
>
> Furthermore TPS recommend not only capacitance but ESR of capacitors too
> (as 20mOhm). This is determine start-up current too.
>
> BBB use C34 100uF as puffer to feed USB host connector. But it is not
> isolated from sys power line (need FBB?). Looks like this is where current
> peak originated from.
>
> TPS has soft start feature but only for DC-DC converters and LDOs.
> Therefore no soft start for capacitive load connected to SYS power line.
>
> It is advisable to add some part to SYS power line for further models
> (e.g. Green).
>
> But up to this moment I think it is recommended to use power supply with
> <=2.5A current limit to prevent damage of TPS. TPS has 3A absolute maximum
> current limit.
>
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Re: [beagleboard] Life cycle BBB

[Gerald Coley]

There is only one designer. The design would be updated as required to keep
up with part EOL and any other issue that may arise that needs fixing. You
can look at the history of the changes to the design on the Wiki to get an
idea on what the history of these events have been.

http://www.elinux.org/Beagleboard:BeagleBoneBlack

http://www.elinux.org/Beagleboard:BeagleBoneBlack#Terms_of_Use

Any functional change would result in a different board, no features or
removal of features will happen on the board so there should be no
compatibility issues.

Gerald


On Fri, Jul 1, 2016 at 6:20 AM,  wrote:

> Hello everyone,
>
> I'm looking into the possibility to use a BeagleBone Black in a commercial
> product.
> I'm so far that i know i may use it and on the side of numbers isn't so
> big (less than 50 a year).
>
> The main problem is the rate at which the designers update the board.  I
> know they will take the right into their own hands when it comes to that
> and who would blame them. But at which rate do they do this? Say every 5
> years when they have an update or is it highly irregular?
>
> I someone could give an insight in this i would really appreciate it.
>
> Kind regards,
>
> Remco
>
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Re: [beagleboard] Re: BBB startup current

[Gerald Coley]

Sounds like you have it figured out.

Gerald

On Thu, Jun 30, 2016 at 3:23 PM,  wrote:

> You are sure "all capacitor"?
> I think TPS has no capability to flow trough more than 1A even in peek,
> therefore capacitor after TPC cannot generate 4A peak!?
> Only capacitor charged directly in this phase is C2.
>
> But only capacitor which can generate 4A peak is C34.
> So TPS can flow trough more than 4A for a milisec?
>
> I think there is missing som kind of FBB from P1 pin 1 beacuse the
> devlopment focused to USB power.
>
>
>
>
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Re: [beagleboard] Beaglebone crashing during thunderstorms!

[Gerald Coley]

So, on this crashDoes it basically reset or just stop? How do you
recover?

Gerald


On Thu, Jun 30, 2016 at 3:14 PM, Wally Bkg  wrote:

> "Well, I don't know where to start. A detailed diagram of the entire
> system hookup would help.
>
> Gerald"
>
> Being in active use for ~25 years and hooked to a variety of computers as
> the years have passed, its never been a problem, but the best I could do
> would be a scan of the diagrams I've built it from.  Its very repetitive,
> four basic interface circuit designs repeated 2, 4, 8, 16 times.  But I may
> get desperate enough to do this, eventually.
>
> But it acted as if the power button had been held down and just shut off,
> and there was minimal disturbance to lights (mix of incandescent, CF, and
> LED) and the various USPes around the house, so I'm thinking maybe EMP
> sensitivity in the power controller chip.  Its an old house (built circa
> 1950), but this outlet is one that I ran a 12ga stranded wire straight from
> the outlet to the grounding rod at the service entrance when we first moved
> in to give me a good ground back in the days I did a lot of hardware work
> -- remember the days of wire-wrapped S-100 bus prototypes :)
>
> OTOH, as I've upgraded the security cameras to HD I've reused the SD
> camera wiring to add additional PIR motion detectors, and I just discovered
> (after posting this thread) I'd one added PIR unintentionally powered from
> a different UPS (but they are all on the same breaker and safety ground
> connection), so I'll see if it happens again.  This had been the case for
> the first thunderstorm crash a few months ago as well.
>
> --
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Gerald

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gcol...@emprodesign.com

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Re: [beagleboard] Original Beagle Bone Dimensions. Anybody Know?!?!?!

[Gerald Coley]

And it is the same size as the BeagleBone Black.

Gerald


On Thu, Jun 30, 2016 at 12:30 PM,  wrote:

> Hello all!
>
> I need to create a mounting plate for an original BeagleBone (the
> discontinued white boards). Does anyone know the diameter of the mounting
> holes and the distance between them? Are they the same dimensions as on the
> BeagleBone Black? I can't find mechanical drawings for the original
> BeagleBone anywhere. Thank you in advance!!!
>
> Walter
>
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Gerald

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gcol...@emprodesign.com

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Re: [beagleboard] Original BeagleBone Dimensions. Anybody Know?!?!!?!

[Gerald Coley]

It is in the System Reference Manual.

http://www.elinux.org/Beagleboard:BeagleBone


Gerald


On Thu, Jun 30, 2016 at 12:40 PM, Walter King 
wrote:

> Hello all!
>
> I need to create a mounting plate for an original BeagleBone (the white
> one that has been discontinued). However, I cannot find mechanical drawings
> for it anywhere and will not have access to the board until after the mount
> has been fabricated. Does anyone know what the diameter of the mounting
> holes are and the distances between them? Is it the same as on the
> BeagleBone Blacks? Thank you in Advance!!
>
> Walter
>
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Gerald

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gcol...@emprodesign.com

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Re: [beagleboard] Ddr3 length matching

[Gerald Coley]

You use the PCB SW tools to give you the lengths of each trace. The
distance from one layer to the next is not that significant and is well
within the needed tolerance.

Gerald


On Sat, Jun 25, 2016 at 6:16 PM,  wrote:

> Hello,
>
>   I am designing my own board based on the am3358 and one ddr3 chip. I
> looked at the bbb project to have a example of layout and i have a question
> about length matching for the ddr3 interface. How the length matching has
> been done if different layers are used? The signal on the outer layers
> doesnt travel at the same speed as the inner layers.
>
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Gerald

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