Re: [beagleboard] USB transmission speed

[William Hermans]

Well anything above 12 Megabytes/second is going to go to waste for your
case anyhow. Max theoretical for 100Mbit / fast ethernet is 12 Megabytes /
second. You will never see that *ever*. Still, I've booted from USB over
the host port and I am getting 10.6 MB/s. This is even with an old
PATA<->USB 2.0 with no features according to hdparm.

Also, you do not need a hub. Using an external powered hard drive case
would work fine. I'd also imagine the hub is slowing things down some for
you.

I am also using one of RCN's Kernels . . .


On Sat, Nov 2, 2013 at 8:22 AM,  wrote:

> I'm trying to use the BBB as a (very) lightweight NAS. Unfortunately, I'm
> a bit disappointed with the transfer speed I can achieve over the USB port.
> I've now tried different kernels such as Robert C Nelsons 3.8.13-bone28 and
> 3.12.0-rc5-bone6, different USB storage devices (such as a USB 2.0 flash
> drive and a USB 3.0 hard disk), and tried both directly attaching the flash
> drive to the BBB as well as using a powered USB hub. The HD of course only
> works on the hub. The BBB is running on a 5V external power supply.
>
> Using different tools (hdparm and dd) the USB read speed always maxes out
> at about 9MB/s which is far less than the same devices deliver on other
> systems (e.g. about 25MB/s on my Raspberry Pi).
>
> Does anyone have an idea why this is the case or how this can be improved?
>
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[beagleboard] Re: 3.12-rc4: kernel testing time...

[George B]

Putting 

preloadindex = true

in the [core] section of the .git/config files sure makes things work a lot 
better over an nfs mounted source dir

core.preloadindex = true to git config even


On Thursday, October 31, 2013 7:14:54 PM UTC-7, Chong Yang wrote:
>
> I use kernel source from https://github.com/RobertCNelson/linux-dev 
> followed default build steps 
> ./build_kernel.sh
> ./tools/install_kernel.sh
>
> but my beaglebone network and usb not working, i use ubuntu 'raring', and 
> bone hardware version A6a.
>
>
> On Friday, October 11, 2013 8:09:24 AM UTC+8, RobertCNelson wrote:
>>
>> So here is the deal; 3.8 is old, and 3.12-rc4 is newer/better/etc... 
>>
>> Functionally, it seems ready in my small 5 board sample size.  3 of 
>> which have been running 24/7 @ 100% since rc3.. 
>>
>> Anywho, we need community testing. (Here's looking at you!) 
>>
>> Kernel Branch: 
>> https://github.com/beagleboard/linux/tree/3.12 
>>
>> Kernel src Script: 
>> https://github.com/beagleboard/kernel/tree/3.12 
>>
>> Regression/testing: 
>> Are we missing any kernel config settings from 3.8 that you used? 
>> Does your Cape still work? 
>>
>> Other thoughts... 
>> Some users will build/install these from src, however anyone 
>> interested in a quick "test-me.sh*" script which will install the new 
>> kernel on a daily/weekly basis? 
>>
>> * script currently doesn't exist, but after a few beers it might... 
>>
>> Regards, 
>>
>> -- 
>> Robert Nelson 
>> http://www.rcn-ee.com/ 
>>
>

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[beagleboard] Re: announce new documentation resource

[Ben Mitch]

Have now posted embedded interface articles too.

Cheers



On Friday, 1 November 2013 02:10:21 UTC, Ben Mitch wrote:
>
> Hi all
>
> I've fought B3/Angstrom into submission over the past few weeks, and have 
> been writing down everything I did. Perhaps parts of it will be of some use 
> to some of you: www.cowsheep.net/articles?series=B3W
>
> I've got several embedded interfaces up and running too (UART, I2C, GPIO, 
> AIN) and am currently pulling my notes together into articles for these 
> too. I'll post them when they're ready.
>
> Best o' luck!
>
>

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[beagleboard] BBB won't talk to me

[Jim Hodgers]

Some time ago I bought a BBB from Adafruit. When I tried to load it nothing 
happened. I went to the BBB Start page on the web and loaded the drivers as 
instructed but when I tried to go to 192.168.7.2, I got a "not found" 
error. I loaded the flasher image from the web as instructed, unzipped, put 
on a microSD, installed, and rebooted with Switch pressed, went to 
192.168.7.2, still nothing. I then used the non-flash image and rebooted 
with that image, still nothing. I bought the Serail-USB cable ant connected 
it as instructed, Windows(7) found a Serial port as com18 but it did not 
show up in File manager nor would Putty connect when set to Com18-115200 
Baud. At this point because my project would use more than 1 BBB, I ordered 
another from Adafruit. This one worked immediately. At this point several 
months have elapsed, do I contact Adafruit or is there another path to 
take? 

Jim

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[beagleboard] kernel linux

[nicola_bb1C4]

Hi, everybody

I'm a student and for thesis i have to describe every function that the 
kernel calls, when an usb is connected.
At the moment i'm working well using printk on each core's file.
I've seen that every connection of usb key, starts with the call 
"usb_hcd_irq()".

My question is which are the functions that calls usb_hcd_irq()?

Another trouble is what's the first function that is called when the 
pull-up of usb port became high?

Thanks, in advance.
Nicola


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Re: [beagleboard] Re: BeagleBone Black: Ethernet transmits packets but does not receive them

[Gerald Coley]

-This sounds to be either SW or Network related.

-It could be bad cable.

-It could be a DHCP server issue or a bad IP address such that the router
does not know where to route messages.

-The fact it happens on two cards, makes it less likely to be a board issue.

-Make sure the Ethernet cable is plugged in before you power up the board.

-I have seen that if you have the USB cable connected and you have run the
getting started stuff, the board decides to create its own DHCP server,.
That can sometimes mess up the Ethernet. Make sure USB is unplugged from
the PC and power up the board. Then ping the address as set by your DHCP
sever to the assigned address.


Gerald



On Sat, Nov 2, 2013 at 2:47 PM,  wrote:

>
>
> On Wednesday, 18 September 2013 17:49:12 UTC+2, Gerald wrote:
>>
>> I can tell from this forum that a lot of people have no issues.
>>
>> I can also tell that some people have issues.
>>
>>
> Hi Gerald,
>
> What advice to get the Ethernet on the BBB to work properly?
>
> I have 2 units purchased a couple of weeks back.  Both behave the same as
> described above.
>
> Thanks,
> Steve
>
>
> --
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Re: [beagleboard] Beaglebone Black freezing, USB related?

[Philip Polstra]

Suspect your wifi adapter. I run a BBB and BB-xM 24x7 for weeks at a time
with no issues and Alfa awus036h wireless. My devices are running The Deck,
my custom pentesting Linux based on Nelson's Ubuntu 13.04.
On Nov 2, 2013 3:25 PM,  wrote:

> Hi all
>
> New here, but I've been experimenting with the BeagleBone black for a few
> months now with much success - I2C, SPI, ADC, GPIO, UARTS are all working
> for me, and I have a my custom cape wining it's way from the fab to me as I
> type. But now I'm trying to integrate it with the USB peripherals I'll need
> and I am getting constant freezes.
>
> My setup. I have a good power supply (3A 5V) connected via the barrel
> connector. I have a powered USB hub from a reputable manufacturer and which
> also has a 3A supply. In that hub I have a bluetooth dongle, an Atheros 9K
> based Wifi dongle, and a Huawei E3131 3G modem. There's also an ethernet
> connection. I'm running a system derived from the Ubuntu self-installer on
> eLinux.org (ie that plus updates and a few additional packages) with
> the 3.8.13-bone28 kernel.
>
> The symptoms are after a variable number of hours the device hangs. The
> heartbeat LED stops and it drops off the network. I'm normally running with
> HDMI disabled but when I enable it I see nothing on the screen except the
> console login - no panic message, although when it's hung the cursor stops
> blinking. I have to power cycle it and when it comes back there is nothing
> in the logs.
>
> So I haven't got much to work from here. I had loads of issues with
> another Wifi card so switched to one with the atheros chipset, but I still
> suspect it's the USB subsystem causing the problems as I had no issues
> until I started plugging in devices (plus the hotplug doesn't seem to work
> reliably under 3.8.13).
>
> So I guess my questions are:
>
> 1. Does anyone have any suggestions - I gather a few people have been here
> before me.
>
> 2. Is there any way I can get some logs out of this? I've been running
> LInux for 20 years but am new to embedded, and I find a crash with no panic
> message quite disconcerting!
>
> 3. Is it likely to be hardware or software causing this? The beaglebone
> black is about 3 months old, so I think it's the latest revision.
>
> 4. At this point I guess my next option is upgrading to the EXPERIMENTAL
> or TESTING kernels from Robert Nelson (at 3.12.0-rc3 and rc7 respectively
> at the moment) - has anyone tried these, and are they fit for purpose?
>
> Thanks in advance.
>
>
> Cheers... Mike
>
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[beagleboard] Modelling and Simulation using MATLAB

[Bill Mar]

There is a free upcoming online (MOOC) course next April "Modelling and
Simulation using MATLAB®" on iversity

https://iversity.org/c/13?r=028aa

Bill Mar
Special Computing

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Re: [beagleboard] Re: What limits Beagle Board Black HDMI resolution

[Gerald Coley]

1920x1080@24HZ is the best it can do.

Gerald



On Sat, Nov 2, 2013 at 1:19 PM,  wrote:

> Per above, it seemed that 1920x1080 was possible in the 50-60Hz range
> without audio.  Has the community been able to figure out a way to get that
> to work?
> Thanks!
>
>
> On Friday, November 1, 2013 3:24:35 AM UTC-4, draw...@gmail.com wrote:
>>
>> People, read your docs… According to the latest System Reference Manual,
>> BBB added support for 1920x1080@24Hz resolution: https://github.
>> com/CircuitCo/BeagleBone-Black/tree/master/BBB_SRM.pdf
>>
>>
>>   6.10 HDMI Interface
>>
>> The BeagleBone Black has an onboard HDMI framer that converts the LCD
>> signals and audio signals to drive a HDMI monitor. The design uses an NXP 
>> TDA19988
>> HDMI Framer.
>>
>> The following sections provide more detail into the design of this
>> interface.
>>
>> 6.10.1 Supported Resolutions
>>
>> The maximum resolution supported by the BeagleBone Black is 1280x1024 @
>> 60Hz. Table 9 below shows the supported resolutions. Not all resolutions
>> may work on all monitors, but these have been tested and shown to work on
>> at least one monitor. EDID is supported on the BeagleBone Black. Based on
>> the EDID reading from the connected monitor, the highest compatible
>> resolution is selected.
>>
>> Table 9. HDMI Supported Monitor Resolutions
>>  [image: page71image9400] [image: page71image9824] [image:
>> page71image10248]  [image: page71image11640]
>>
>> RESOLUTION
>>   [image: page71image12800]  [image: page71image13416] [image:
>> page71image13576]
>>
>> AUDIO
>>   [image: page71image14600] [image: page71image14760]  [image:
>> page71image15352]   [image: page71image15920] [image: page71image16344]
>>
>> 800 x 600 @60Hz
>>
>> 800 x 600 @56Hz
>>   [image: page71image20208]
>>
>> 640 x 480 @75Hz
>>   [image: page71image23392] [image: page71image24296]
>>
>> 640 x 480 @60Hz
>>
>> YES
>>
>> 720 x 400 @70Hz
>>   [image: page71image29160]
>>
>> 1280 x 1024 @75Hz
>>   [image: page71image32416]  [image: page71image33184]
>>
>> 1024 x 768 @75Hz
>>   [image: page71image35248]  [image: page71image36016]
>>
>> 1024 x 768 @70Hz
>>   [image: page71image38080]  [image: page71image38848]
>>
>> 1024 x 768 @60Hz
>>   [image: page71image41264] [image: page71image41744]  [image:
>> page71image42632]
>>
>> 800 x 600 @75Hz
>>   [image: page71image44912]
>>
>> 800 x 600 @72Hz
>>
>> 720 x 480 @60Hz
>>
>> YES
>>
>> 1280 x 720 @60Hz
>>
>> YES
>>   [image: page71image53920]
>>
>> 1920x1080@24Hz
>>
>> YES
>>  [image: page71image57840]  [image: page71image58304] [image:
>> page71image58784]
>>
>> *NOTE: The updated software image used on the Rev A5B board added support
>> for 1920x1080@24HZ.*
>>
>>
>>
>>
>> On Wednesday, 8 May 2013 03:05:24 UTC-7, ric...@aardvark.com.au wrote:
>>>
>>> The Beagle Board Black system reference manual rev  A5.2 says (in the
>>> HDMI section):
>>>
>>> Currently the following resolutions are supported via the software:
>>>  1280 x 1024
>>>  1440 x 900
>>>  1024 x 768
>>>  1280 x 720
>>>
>>> This is a bit disappointing because we don't have 1920 x 1080...
>>> arguable "full HD". I believe the current Raspberry Pie has more than 1920
>>> x 1080.
>>> Is this limit imposed by the hardware of the software? Are we expecting 
>>> higher
>>> resolutions in future software releases?
>>>
>>> Thnaks
>>>
>>> Richard.
>>>
>>>
>>>
>>>  --
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Re: [beagleboard] Help needed selecting right BeagleBone white and black board with assoiciated LCD capes

[Gerald Coley]

http://www.elinux.org/BeagleBone_Black_Capes
http://circuitco.com/support/index.php?title=BeagleBone_Capes


On Sat, Nov 2, 2013 at 7:01 AM, Gazelle  wrote:

> Hello Beagle Fans - I want to order a Beagle Bone white and Beagle Bone
> Black board with LCD cape from Farnell/Digikey/Mouser and want to be sure
> that I order
> latest hardware and matching LCD capes ... - can anyone provide me with a
> pointer to a table / wiki page where I can retrieve such info ?
>
> Thank you !
> Michel
>
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[beagleboard] Re: BBB Sensor Input over Python

[deepak karki]

Looks like it's there : 
example : 
https://github.com/alexanderhiam/PyBBIO/blob/master/examples/EventIO_test.py
src :
https://github.com/alexanderhiam/PyBBIO/blob/master/libraries/EventIO/eventio.py

On Saturday, 2 November 2013 18:15:48 UTC+5:30, John Doe wrote:
>
> Hello
>
> Is it possible to have an Eventhandler in Python for Sensor GPIO Inputs?
>

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Re: [beagleboard] Re: BeagleBone Black: Ethernet transmits packets but does not receive them

[steve]

On Wednesday, 18 September 2013 17:49:12 UTC+2, Gerald wrote:
>
> I can tell from this forum that a lot of people have no issues.
>
> I can also tell that some people have issues.
>
>
Hi Gerald,

What advice to get the Ethernet on the BBB to work properly?

I have 2 units purchased a couple of weeks back.  Both behave the same as 
described above.

Thanks,
Steve
 

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[beagleboard] Re: What limits Beagle Board Black HDMI resolution

[srinity]

Per above, it seemed that 1920x1080 was possible in the 50-60Hz range 
without audio.  Has the community been able to figure out a way to get that 
to work?
Thanks!

On Friday, November 1, 2013 3:24:35 AM UTC-4, draw...@gmail.com wrote:
>
> People, read your docs… According to the latest System Reference Manual, 
> BBB added support for 1920x1080@24Hz resolution: 
> https://github.com/CircuitCo/BeagleBone-Black/tree/master/BBB_SRM.pdf
>
>
>   6.10 HDMI Interface 
>
> The BeagleBone Black has an onboard HDMI framer that converts the LCD 
> signals and audio signals to drive a HDMI monitor. The design uses an NXP 
> TDA19988 
> HDMI Framer. 
>
> The following sections provide more detail into the design of this 
> interface. 
>
> 6.10.1 Supported Resolutions 
>
> The maximum resolution supported by the BeagleBone Black is 1280x1024 @ 
> 60Hz. Table 9 below shows the supported resolutions. Not all resolutions 
> may work on all monitors, but these have been tested and shown to work on 
> at least one monitor. EDID is supported on the BeagleBone Black. Based on 
> the EDID reading from the connected monitor, the highest compatible 
> resolution is selected. 
>
> Table 9. HDMI Supported Monitor Resolutions 
>  [image: page71image9400] [image: page71image9824] [image: 
> page71image10248]  [image: page71image11640]  
>  
> RESOLUTION 
>   [image: page71image12800]  [image: page71image13416] [image: 
> page71image13576]  
>  
> AUDIO 
>   [image: page71image14600] [image: page71image14760]  [image: 
> page71image15352]   [image: page71image15920] [image: page71image16344]   
>  
> 800 x 600 @60Hz 
>   
> 800 x 600 @56Hz 
>   [image: page71image20208]
>  
> 640 x 480 @75Hz 
>   [image: page71image23392] [image: page71image24296]
>  
> 640 x 480 @60Hz 
>
> YES 
>  
> 720 x 400 @70Hz 
>   [image: page71image29160]
>  
> 1280 x 1024 @75Hz 
>   [image: page71image32416]  [image: page71image33184]   
>  
> 1024 x 768 @75Hz 
>   [image: page71image35248]  [image: page71image36016]   
>  
> 1024 x 768 @70Hz 
>   [image: page71image38080]  [image: page71image38848]   
>  
> 1024 x 768 @60Hz 
>   [image: page71image41264] [image: page71image41744]  [image: 
> page71image42632]   
>  
> 800 x 600 @75Hz 
>   [image: page71image44912]
>  
> 800 x 600 @72Hz 
>   
> 720 x 480 @60Hz
>
> YES 
>  
> 1280 x 720 @60Hz
>
> YES 
>   [image: page71image53920]   
>  
> 1920x1080@24Hz
>  
> YES 
>  [image: page71image57840]  [image: page71image58304] [image: 
> page71image58784]  
>  
> *NOTE: The updated software image used on the Rev A5B board added support 
> for 1920x1080@24HZ.* 
>  
>
>
>
> On Wednesday, 8 May 2013 03:05:24 UTC-7, ric...@aardvark.com.au wrote:
>>
>> The Beagle Board Black system reference manual rev  A5.2 says (in the 
>> HDMI section):
>>
>> Currently the following resolutions are supported via the software:
>>  1280 x 1024
>>  1440 x 900
>>  1024 x 768
>>  1280 x 720
>>
>> This is a bit disappointing because we don't have 1920 x 1080... arguable 
>> "full HD". I believe the current Raspberry Pie has more than 1920 x 1080.
>> Is this limit imposed by the hardware of the software? Are we expecting 
>> higher 
>> resolutions in future software releases?
>>
>> Thnaks
>>
>> Richard.
>>
>>
>>
>>

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[beagleboard] Re: Start Address of RAM on BBB?

[ronnysuy]

Hi

Internal sram goes from 402f0400 ... 4030

sdram goes from 8000 ... 9fff
all in hex ofcourse :-)


Greetz Ronny



On Friday, November 1, 2013 4:44:27 PM UTC+1, Satz Klauer wrote:
>
> Hi,
>
> I have some problems loading my Starterware-application from disk. MLO 
> works fine but my app does not start. I think it is a problem of start 
> address the app is loaded to.
>
> So what is the base address of RAM on BBB?
>
> Thanks!
>  
>

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[beagleboard] Broken I2C Rev A6?

[srinity]

Hello,

According to U-boot, there are serious issues on my new A6 BBB:

U-Boot SPL 2013.04-dirty (Jun 19 2013 - 09:57:14)
timed out in wait_for_pin: I2C_STAT=0
Could not probe the EEPROM; something fundamentally wrong on the I2C bus.
Could not get board ID.
Unknown board, assuming Beaglebone LT/Black.musb-hdrc: ConfigData=0xde 
(UTMI-8, dyn FIFOs, HB-ISO Rx, HB-ISO Tx, SoftConn)
musb-hdrc: MHDRC RTL version 2.0
musb-hdrc: setup fifo_mode 4
musb-hdrc: 28/31 max ep, 16384/16384 memory
USB Peripheral mode controller at 47401000 using PIO, IRQ 0
musb-hdrc: ConfigData=0xde (UTMI-8, dyn FIFOs, HB-ISO Rx, HB-ISO Tx, 
SoftConn)
musb-hdrc: MHDRC RTL version 2.0
musb-hdrc: setup fifo_mode 4
musb-hdrc: 28/31 max ep, 16384/16384 memory
USB Host mode controller at 47401800 using PIO, IRQ 0
OMAP SD/MMC: 0
mmc_send_cmd : timeout: No status update
reading u-boot.img
reading u-boot.img


U-Boot 2013.04-dirty (Jun 19 2013 - 09:57:14)

I2C:   ready
DRAM:  512 MiB
WARNING: Caches not enabled
timed out in wait_for_pin: I2C_STAT=0
Could not probe the EEPROM; something fundamentally wrong on the I2C bus.
Could not get board ID.
NAND:  No NAND device found!!!
0 MiB
MMC:   OMAP SD/MMC: 0, OMAP SD/MMC: 1
*** Warning - readenv() failed, using default environment

musb-hdrc: ConfigData=0xde (UTMI-8, dyn FIFOs, HB-ISO Rx, HB-ISO Tx, 
SoftConn)
musb-hdrc: MHDRC RTL version 2.0
musb-hdrc: setup fifo_mode 4
musb-hdrc: 28/31 max ep, 16384/16384 memory
USB Peripheral mode controller at 47401000 using PIO, IRQ 0
musb-hdrc: ConfigData=0xde (UTMI-8, dyn FIFOs, HB-ISO Rx, HB-ISO Tx, 
SoftConn)
musb-hdrc: MHDRC RTL version 2.0
musb-hdrc: setup fifo_mode 4
musb-hdrc: 28/31 max ep, 16384/16384 memory
USB Host mode controller at 47401800 using PIO, IRQ 0
Net:not set. Validating first E-fuse MAC
cpsw, usb_ether
Hit any key to stop autoboot:  0
U-Boot#

The error "Could not probe the EEPROM" and "No NAND device found" show up.

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Re: [beagleboard] Re: I2C and Invensense MPU6050 Driver

[clarkbriggs101]

Jason,
I apologize for taking so long to answer. It wasn't quick to figure out 
which breakout board we had with the MPU6050 on it.  It is apparently a Kootek® 
Arduino GY-521 MPU-6050 Module from Amazon.
Itis wired:

P9_1->Gnd 

P9_3->VCC

P9_19 ->SCL

P9_20 -> SDA

Your P9_19 SCL and P9_20 SDA should be fine.

Later posts suggest you can talk to you device and have shown us via W 
Smith  the way to straighten out which bus is which.

Clark
On Thursday, October 31, 2013 1:32:46 PM UTC-7, Jason Kridner wrote:

> On Tue, Oct 29, 2013 at 2:19 PM, Jason Kridner 
> > 
> wrote: 
> > 
> > On Thu, Oct 17, 2013 at 6:12 PM,  > 
> wrote: 
> > > AIW: 
> > > I went back thru the adafruit library and didn't find anything 
> specific on 
> > > I2C, although it is listed as a topic.  I have been looking at their 
> github 
> > > adafruit-beaglebone-io-python library. I also found and looked thru 
> PyBBIO. 
> > > Even tho I'm not using Python, I can see the access mechanisms that 
> they 
> > > use. 
> > > I can use the MPU6050 device ok enough just reading via 
> /dev/i2c/i2c-x, but 
> > > that is too slow. 
> > > I'm trying to figure out how to invoke and use the inv-mpu6050 driver 
> and 
> > > adafruit doesn't use that. 
> > > Thx -- Clark 
> > > 
> > > On Thursday, October 17, 2013 9:47:44 AM UTC-7, AIW wrote: 
> > >> 
> > >> Some good info on I2C tools at http://www.acmesystems.it/i2c. 
> > >> 
> > >> Python and the adafruit BBIO I2C library makes it very easy to use 
> I2C on 
> > >> Beaglebone Black as well. Python import smbus is fairly easy to use 
> too. 
> > >> Some examples of use is available in the code I provide for my radio 
> project 
> > >> herewww.aiwindustries.com. 
> > >> 
> > >> Not trying to sell the product, but I know that the I2C function was 
> > >> giving me some issues so I'm just trying to help the community. 
> Python code 
> > >> is available to download and look at usage so feel free. 
> > >> 
> > >> On Tuesday, October 15, 2013 5:02:59 PM UTC-5, 
> > >> clarkbr...@gmail.comwrote: 
> > >>> 
> > >>> We are using the Invensense MPU6050 IMU on I2C with Beaglebone Black 
> > >>> (Angstrom 3.8.13). We can use I2C-tools and file I/O thru /dev/i2c 
> but the 
> > >>> read speed is disappointingly slow.  We only read the 3x gyros and 
> 3x accels 
> > >>> (each one byte at a time plus the 2 byte temperature reading) and it 
> takes 
> > >>> ~2msecs.  My estimate of the I2C bus cycles for a block read 
> suggests this 
> > >>> should take ~160 bus cycles or .38msec on a 400MHz I2C bus. 
> > 
> > You are running at 400kHz, not 400MHz, right?  I2C doesn't do 400MHz. 
> > 
> > >>> 
> > >>> The distribution includes the Invensense driver inv-mpu6050.ko but 
> there 
> > >>> is no indication that reading through /dev/i2c invokes it.  This is 
> a very 
> > >>> popular IMU and Invensense widely distributes the driver over many 
> Linux 
> > >>> platforms.  The driver source includes “successful installation will 
> create 
> > >>> two directories under /sys/bus/iio/devices” and lists the files 
> there (aka 
> > >>> functions). I can never get these to show up. 
> > >>> 
> > >>> I can “insmod 
> > >>> 
> /lib/modules/3.8.13/kernel/drivers/iio/imu/inv_mpu6050/inv-mpu6050.ko” and 
> > >>> “echo inv-mpu6050 0x68 > /sys/class/i2c-adapter/i2c-1/new_device”. 
> This 
> > >>> causes a new directory named 1-0068 to show in 
> > >>> /sys/class/i2c-adapter/i2c-1with entries like name and modalias but 
> no 
> > >>> functions.  It never shows in /sys/bus/iio/devices. 
> > 
> > I don't have an MPU6050, but I just ordered a couple on express 
> > overnight from Sparkfun. 
>
> I bought https://www.sparkfun.com/products/11028 and played with it 
> briefly before being distracted and again today, but I don't 
> understand why I'm not able to get it to reply to me. 
>
> I have the following connections: 
> VCC: P9_4 (VDD_3V3) 
> GNC: P9_1 (GND) 
> INT: P9_11 (GPIO) 
> FSYNC: - 
> SCL: P9_19 (I2C2_SCL) 
> SDA: P9_20 (I2C2_SDA) 
> VIO: P9_3 (VDD_3V3) 
> CLK: - 
> ASCL: - 
> ASDA: - 
>
> I then perform: 
>
> root@beaglebone:~# i2cdetect -y -r 1 
>  0  1  2  3  4  5  6  7  8  9  a  b  c  d  e  f 
> 00:  -- -- -- -- -- -- -- -- -- -- -- -- -- 
> 10: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 
> 20: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 
> 30: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 
> 40: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 
> 50: -- -- -- -- UU UU UU UU -- -- -- -- -- -- -- -- 
> 60: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 
> 70: -- -- -- -- -- -- -- -- 
>
> Very confused why it doesn't show up. 
>
> Since you have it responding to you, how do you have it wired? 
>
> > 
> > Here's the behavior I'm seeing without the board connected: 
> > 
> > root@beaglebone:/lib/modules/3.8.13/kernel/drivers/iio/imu/inv_mpu6050# 
> ls 
> > inv-mpu6050.ko 
> > root@beaglebone:/lib/modules/3.8.13/kernel/drivers/iio/imu/inv_mpu6050# 
> > dmesg | tail -1 
> > [ 2992.799594] i2

[beagleboard] Interfacing BeagleBoneBlack USB Boot with libusb on OSX

[Vlad Ungureanu]

Hello! 

I am trying to port the BeagleBoot 
*https://github.com/ungureanuvladvictor/BBBlfs.git* project from Linux to 
OSX. My Linux project was based on libusb to take over the device and 
communicate with it from an user level application. However on OSX the 
kernel takes over the device and the libusb_kernel_driver_active function 
is just a stub on OSX. I asked around the libusb ML about codeless kexts 
for OSX to prevent the kernel taking over my device but got no valid 
answer. Also I tried to read the Apple documentation on them but I get my 
ears caught in all of that and have a hard time to understand it. I found 
some examples on the internet and tried to modify them but same result, 
kernel still takes over my device. 

Are here some OSX kexts experts or at least does anybody have any idea how 
to tackle this problem?

Thank you in advance! 

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[beagleboard] What happens when you boot the eMMC flasher?

[James Yeo]

So, trying to re-flash Angstrom onto my eMMC. I downloaded the eMMC flasher 
image, put it on a card and booted from it. Thus far, I believe I have 
followed the agenda perfectly.

I was presented with a login prompt, so I logged in as root. Nothing 
happened except a command prompt.

So I did some more googling, and found this page: 
http://www.crashcourse.ca/wiki/index.php/BBB_software_update_process

And I went and executed /usr/bin/emmc.sh. the script is currently 
executing, but it's getting a lot of error messages of the "tar: can't make 
dir" and "/media/1: device is busy" type, so I'm fairly certain that in 
spite of the ongoing frenetic blinking of the onboard LEDs, I am not going 
to come out the other end of this script with a working BBB.

I can boot from a regular angstrom SD card without a problem, but I want to 
be able to boot without holding down the user button. what am I doing wrong?

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[beagleboard] AIC23B and BBB

[Герман Фоменко]

Hi! How connect TLV320AIC23B to BBB? 

I changed the original soc aic3x to aic23b (used the original source code 
soc aic23)
Connect. 31 p9 to BCLK, 29 p9 to LRCIN, 25 p9 to DIN.

echo BB-BONE-AUDI-01 >/sys/devices/bone_capemgr.*/slots
ffmpeg -i test.wav -f alsa "default:CARD=EVM" -re -vol 150

As a result, I hear a noise

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[beagleboard] USB transmission speed

[thomas . zell]

I'm trying to use the BBB as a (very) lightweight NAS. Unfortunately, I'm a 
bit disappointed with the transfer speed I can achieve over the USB port. 
I've now tried different kernels such as Robert C Nelsons 3.8.13-bone28 and 
3.12.0-rc5-bone6, different USB storage devices (such as a USB 2.0 flash 
drive and a USB 3.0 hard disk), and tried both directly attaching the flash 
drive to the BBB as well as using a powered USB hub. The HD of course only 
works on the hub. The BBB is running on a 5V external power supply.

Using different tools (hdparm and dd) the USB read speed always maxes out 
at about 9MB/s which is far less than the same devices deliver on other 
systems (e.g. about 25MB/s on my Raspberry Pi).

Does anyone have an idea why this is the case or how this can be improved?

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[beagleboard] AIC23B with BBB

[Герман Фоменко]

Hi! How connect TLV320AIC23B to BeagleBone Black? GPIO connection? modes 
AIC23B? 

I changed the original driver aic3x for aic23 (uses original source code of 
soc aic23).
Connect 31 pin (p9) to BCLK, 29 pin (p9) to LRCIN, 25 pin (p9) to DIN

echo BB-BONE-AUDI-01 >/sys/devices/bone_capemgr.*/slots
ffmpeg -i test.wav -f alsa "default:CARD=EVM" -re -vol 150

As a result, I hear a noise

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[beagleboard] Beaglebone Black freezing, USB related?

[mike]

Hi all

New here, but I've been experimenting with the BeagleBone black for a few 
months now with much success - I2C, SPI, ADC, GPIO, UARTS are all working 
for me, and I have a my custom cape wining it's way from the fab to me as I 
type. But now I'm trying to integrate it with the USB peripherals I'll need 
and I am getting constant freezes.

My setup. I have a good power supply (3A 5V) connected via the barrel 
connector. I have a powered USB hub from a reputable manufacturer and which 
also has a 3A supply. In that hub I have a bluetooth dongle, an Atheros 9K 
based Wifi dongle, and a Huawei E3131 3G modem. There's also an ethernet 
connection. I'm running a system derived from the Ubuntu self-installer on 
eLinux.org (ie that plus updates and a few additional packages) with 
the 3.8.13-bone28 kernel.

The symptoms are after a variable number of hours the device hangs. The 
heartbeat LED stops and it drops off the network. I'm normally running with 
HDMI disabled but when I enable it I see nothing on the screen except the 
console login - no panic message, although when it's hung the cursor stops 
blinking. I have to power cycle it and when it comes back there is nothing 
in the logs.

So I haven't got much to work from here. I had loads of issues with another 
Wifi card so switched to one with the atheros chipset, but I still suspect 
it's the USB subsystem causing the problems as I had no issues until I 
started plugging in devices (plus the hotplug doesn't seem to work reliably 
under 3.8.13).

So I guess my questions are:

1. Does anyone have any suggestions - I gather a few people have been here 
before me.

2. Is there any way I can get some logs out of this? I've been running 
LInux for 20 years but am new to embedded, and I find a crash with no panic 
message quite disconcerting!

3. Is it likely to be hardware or software causing this? The beaglebone 
black is about 3 months old, so I think it's the latest revision.

4. At this point I guess my next option is upgrading to the EXPERIMENTAL or 
TESTING kernels from Robert Nelson (at 3.12.0-rc3 and rc7 respectively at 
the moment) - has anyone tried these, and are they fit for purpose?

Thanks in advance.


Cheers... Mike

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[beagleboard] No sign of life.

[Tekk3y]

Hey, I got my Beagle Bone Black yesterday with a 3.5 touch lcd cape. I 
tried using the cape it booted file and I tried the usb host mode which 
also worked fine (Of which then i installed the drivers). After this I 
tried one of these methods again and my beagle board wouldn't give me any 
output, I then connected it via a hdmi cable to my monitor which till 
didn't seem to help. Finally I decided to connect to it my pc to try and 
find out what the problem was but its no longer showing up on my PC. When I 
plug it into the mains and my pc several of the LEDs light up but other 
than that noting else seems to be happening. 
Can someone help me figure out what's wrong?

Thanks for any help you might be able to give. 

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[beagleboard] Web based led control

[Ray]

Hey guys i want to control an led over the web, tried a lot of tutorial but 
everything is outdated 
can some one help me on this topic.
my device is BBB angstrom

thanks

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[beagleboard] Re: Ethernet on BBB is setup for static IP but unable to access server

[arunbarnabasjohn]

I managed to solve the problem, but I cannot understand how the solution 
works.

After adding a delay of 30 seconds and then executing the ifconfig settings 
causes the ethernet to be setup correctly. So this script works correctly.

#!/bin/bash

#setup the ethernet address

sleep 30

ifconfig eth0 192.168.0.88 netmask 255.255.255.0
route add default gw 192.168.0.1
ifconfig eth0 up

So adding a delay of 30 seconds after startup solved the problem.

Could anyone explain why this is required...Is there a better method of 
setting up the ethernet on the BBB. 

I tried the method given on derek malloy's website, but for some reason the 
settings get overwritten..

thanks
a



On Friday, November 1, 2013 8:13:04 PM UTC+5:30, arunbarn...@gmail.com 
wrote:
>
> Hi,
>
> I had installed lighttpd webserver on my BBB, and I had disabled 
> bonescript service, the bonescript socket service. This allowed me to use 
> port 80. I was able to access lighttpd server using an ethernet cable.
>
> Suddenly today I found that I cannot access my web server on BBB it using 
> the Ethernet cable,
>
> Please could anyone suggest why this is happening.
>
> I had configured ethernet for static addressing using this script.
>
> #!/bin/bash
>
> #setup the ethernet address
> ifconfig eth0 192.168.0.88 netmask 255.255.255.0
> route add default gw 192.168.0.1
> ifconfig eth0 up
>
> pinging 192.168.0.88 from my laptop brings no response from the BBB, 
> similarly pinging 192.168.0.1 from the BBB has no response.
>
> I can access lighttpd server using the USB cable when it is connected to 
> my laptop.
>
> Could anyone explain why usb accesses lighttpd while ethernet fails. Is 
> there any configuration required for the lighttpd conf file ?? I only 
> configured PHP on lighttpd..
>
> Please help...
>
> thanks
> a
>

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Re: [beagleboard] Beagle Black sturt-up

[Mark Lazarewicz]

http://eewiki.net/display/linuxonarm/BeagleBone+Black
menuconfig




On Thursday, October 31, 2013 3:14 PM, Giuseppe Ventura  
wrote:
 
Hi all,
I would buy this card but i need some informations:


which version of ubuntu I can mount on the board?

I need only linux without graphics so how to customize kernel? there is a LTIB 
here or menuconfig?


thanks.
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Re: [beagleboard] Start Address of RAM on BBB?

[Maxim Podbereznyy]

I guess 0x8000
01 нояб. 2013 г. 19:44 пользователь "Satz Klauer" 
написал:

> Hi,
>
> I have some problems loading my Starterware-application from disk. MLO
> works fine but my app does not start. I think it is a problem of start
> address the app is loaded to.
>
> So what is the base address of RAM on BBB?
>
> Thanks!
>
>
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Re: [beagleboard] Re: UBIFS/U-Boot and UBIFS/Linux not compatible

[Maxim Podbereznyy]

If you want compatibility then use u-boot from ezsdk because ti guys added
"ecc hw" command to set the ecc mode to software correction or hardware
mode. U-boot uses the software mode for all writes, but the kernel uses the
hardware correction mode. To swith back and forth you will u-boot from ti
02 нояб. 2013 г. 12:34 пользователь  написал:

> Hi Tom,
> Somehow I had missed your answer. I'll try with your advices as soon as I
> get time for it. Unfortunately something still more urgent came up.
> I'll let you know how it works out then.
> Thanks,
> Matti
>
> torstai, 24. lokakuuta 2013 13.23.24 UTC+3 matti.k...@gmail.com kirjoitti:
>>
>> Hi!
>>
>> I am working on BeagleBone variant board using Ångström distribution.
>> Main difference is that NAND flash is installed on board. In fact my set-up
>> sounds pretty much same as in "NAND flash with BeagleBone 
>> variant"
>> case.
>>
>> *Short story:*
>>
>> UBIFS partition/volume formatted/created in Linux does not work in
>> U-Boot. UBI part command in U-boot fails. Later on Linux finds this UBIFS
>> corrupted. I don't have any problems if this UBIFS is accessed purely from
>> Linux. I have made NAND flash additions from am335x-evm.dts to BeagleBone
>> device tree. I have tried with ti,nand-ecc-opt = "bch8" (with kernel
>> options CONFIG_MTD_NAND_OMAP_BCH and
>> OMAP_ECC_BCH8_CODE_HW) and without. In the latter case those kernel
>> options were not active.
>>
>> *Longer story* = operations and results:
>>
>> ==
>> BOOT => Linux
>>
>> root@beaglebone:~# cat /proc/mtd
>> ddev:size   erasesize  name
>> mtd0: 0002 0002 "SPL1"
>> mtd1: 0002 0002 "SPL2"
>> mtd2: 0002 0002 "SPL3"
>> mtd3: 0002 0002 "SPL4"
>> mtd4: 001e 0002 "U-boot"
>> mtd5: 0002 0002 "environment"
>> mtd6: 0050 0002 "Kernel"
>> mtd7: 0f88 0002 "File-System"
>>
>>
>> root@beaglebone:~# mtdinfo /dev/mtd7
>> mtd7
>> Name:   File-System
>> Type:   nand
>> Eraseblock size:131072 bytes, 128.0 KiB
>> Amount of eraseblocks:  1988 (260571136 bytes, 248.5 MiB)
>> Minimum input/output unit size: 2048 bytes
>> Sub-page size:  512 bytes
>> OOB size:   64 bytes
>> Character device major/minor:   90:14
>> Bad blocks are allowed: true
>> Device is writable: true
>>
>>
>> root@beaglebone:~# ubiformat /dev/mtd7
>> ubiformat: mtd7 (nand), size 260571136 bytes (248.5 MiB), 1988
>> eraseblocks of 131072 bytes (128.0 KiB), min. I/O size 2048 bytes
>> libscan: scanning eraseblock 1987 -- 100 % complete
>> ubiformat: 1980 eraseblocks have valid erase counter, mean value is 2
>> ubiformat: 8 bad eraseblocks found, numbers: 70, 281, 310, 964, 1590,
>> 1900, 1920, 1977
>> ubiformat: formatting eraseblock 1987 -- 100 % complete
>>
>>
>> root@beaglebone:~# ubiattach -m 7
>> [  615.304815] UBI: default fastmap pool size: 95
>> [  615.309712] UBI: default fastmap WL pool size: 25
>> [  615.314727] UBI: attaching mtd7 to ubi0
>> [  616.065041] UBI: scanning is finished
>> [  616.092241] UBI: attached mtd7 (name "File-System", size 248 MiB) to
>> ubi0
>> [  616.099551] UBI: PEB size: 131072 bytes (128 KiB), LEB size: 129024
>> bytes
>> [  616.106760] UBI: min./max. I/O unit sizes: 2048/2048, sub-page size 512
>> [  616.113780] UBI: VID header offset: 512 (aligned 512), data offset:
>> 2048
>> [  616.120891] UBI: good PEBs: 1980, bad PEBs: 8, corrupted PEBs: 0
>> [  616.127267] UBI: user volume: 0, internal volumes: 1, max. volumes
>> count: 128
>> [  616.134839] UBI: max/mean erase counter: 4/3, WL threshold: 4096,
>> image sequence number: 1266322069
>> [  616.144425] UBI: available PEBs: 1942, total reserved PEBs: 38, PEBs
>> reserved for bad PEB handling: 32
>> [  616.154993] UBI: background thread "ubi_bgt0d" started, PID 266
>> UBI device number 0, total 1980 LEBs (255467520 bytes, 243.6 MiB),
>> available 1942 LEBs (250564608 bytes, 239.0 MiB), LEB size 129024 bytes
>> (126.0 KiB)
>>
>> root@beaglebone:~# ubimkvol /dev/ubi0 -N rootfs -m
>> Set volume size to 250564608
>> Volume ID 0, size 1942 LEBs (250564608 bytes, 239.0 MiB), LEB size 129024
>> bytes (126.0 KiB), dynamic, name "rootfs", alignment 1
>>
>> root@beaglebone:~# mkdir /mnt/rootfs
>>
>> root@beaglebone:~# mount -t ubifs ubi0:rootfs /mnt/rootfs
>> [ 1246.100061] UBIFS: default file-system created
>> [ 1246.129559] UBIFS: background thread "ubifs_bgt0_0" started, PID 279
>> [ 1246.181635] UBIFS: mounted UBI device 0, volume 0, name "rootfs"(null)
>> [ 1246.188687] UBIFS: LEB size: 129024 bytes (126 KiB), min./max. I/O
>> unit sizes: 2048 bytes/2048 bytes
>> [ 1246.198379] UBIFS: FS size

[beagleboard] Re: UBIFS/U-Boot and UBIFS/Linux not compatible

[matti . kaasinen]

Hi Tom,
I had a look on those patch series. Just to check: I found 3 of v2 
(2013-08-14 x 3, 2013-09-10 x 3, 2013-09-30 x 4) and one v8 (2013-10-10 x 
5). Do your mean these series I should apply?
-Matti

torstai, 24. lokakuuta 2013 17.42.03 UTC+3 Tom Rini kirjoitti:
>
> On Thursday, October 24, 2013 6:23:24 AM UTC-4, matti.k...@gmail.comwrote:
>>
>> Hi!
>>
>> I am working on BeagleBone variant board using Ångström distribution.  
>> Main difference is that NAND flash is installed on board. In fact my set-up 
>> sounds pretty much same as in "NAND flash with BeagleBone 
>> variant"
>>  
>> case. 
>>
>> *Short story:*
>>
>> UBIFS partition/volume formatted/created in Linux does not work in 
>> U-Boot. UBI part command in U-boot fails. Later on Linux finds this UBIFS 
>> corrupted. I don't have any problems if this UBIFS is accessed purely from 
>> Linux. I have made NAND flash additions from am335x-evm.dts to BeagleBone 
>> device tree. I have tried with ti,nand-ecc-opt = "bch8" (with kernel 
>> options CONFIG_MTD_NAND_OMAP_BCH and
>> OMAP_ECC_BCH8_CODE_HW) and without. In the latter case those kernel 
>> options were not active.
>>
> I think that at least part of the answer is that you need to enable 
> CONFIG_SYS_NAND_ONFI_DETECTION.  You may also need to apply some of Pekon's 
> patches from 
> http://patchwork.ozlabs.org/project/uboot/list/?submitter=17320&state=*(there 
> are 3 series there as of this writing, 2 v2's and a v8, you should 
> apply all 3 series, and in the right order, saving each series to an mbox, 
> and using git am -3 / git am --abort when they fail should help get the 
> right order sorted out quickly).
>
> -- 
> Tom
>

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Re: [beagleboard] Re: [GSTREAMER] RTMP PLUGINS ON ANGSTROM [PAYMENT FOR HELP]

[Cao Xuân Phong]

Thank you for your help, Frank!

Regards,
PhongCao


On 2 November 2013 00:31,  wrote:

> Hi,
>
> Check my feeds directory, it might have what you need:
>
> http://astoria.homedns.org:6677/feeds/2011.03/ipk/glibc/armv7a/
>
> frank
>
>
> On Tuesday, October 29, 2013 11:40:00 PM UTC-4, cxp wrote:
>>
>> Hi,
>>
>> I'm developing an gstreamer application on BeagleBoard XM needs to use
>> rtmp plugin , but I can't find the rtmp in it.
>>
>> My OS version is built at http://narcissus.angstrom-distribution.org/instead 
>> of
>> http://www.angstrom-distribution.org/building-angstrom or demo images
>> due to this version has gstreamer-ti & dsp drivers as default.
>>
>> So I decided to  build gstreamer & all plugins ( especially,
>> gst-plugins-bad) from source.
>>
>> First method, I find version of these packages and got its source code
>> and dependents, then build all of it as on PC. But The OS version lacks
>> many necessary utilities, and I was unsuccessful.
>>
>> Second method, I built all of it use Openembedded Classic but most of
>> links was out of date.
>>
>> My PC is running Ubuntu 12.04 LTS, and my BBXM is running:
>> ===
>> Distributor ID: Angstrom
>> Description:Angstrom GNU/Linux v2011.08 (foo)
>> Release:v2011.08
>> Codename:   foo
>> ===
>>
>>  So, Could you please give some ideas?
>> Thank you so much!
>>
>>
>>  --
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[beagleboard] Re: CAUTION: musb: Babble Interrupt Occurred

[Philippe Laurent]

Crap. On third reboot (full power off/on), the device is experiencing the 
same musb: Babble Interrupt error as before.

So... this is a hardware issue? The BBB is powered by a separate adapter 
(not USB), so power shouldn't be the problem.

On Friday, November 1, 2013 1:13:09 PM UTC-4, Philippe Laurent wrote:
>
> I resolved my issue by installing and using Ubuntu 13.04 on the BBB. It's 
> been up and running the python scanning script for over 24 hours, which is 
> roughly 23 hours longer than it has before. I used the instructions at 
> http://shrkey.com/setting-up-beaglebone-black-to-boot-off-the-microsd-card/to 
> get the installation squared away.
>
> On Wednesday, October 30, 2013 9:51:30 AM UTC-4, Bekir Bahadir wrote:
>>
>> Same problem here. Im also willing to pay for a solution
>>
>> Am Samstag, 31. August 2013 17:42:09 UTC+2 schrieb jez...@gmail.com:
>>>
>>> I'm using my Beaglebone Black with a USB temperature sensor. It works 
>>> very well, however I noticed monitoring stopped last night after roughly 35 
>>> days uptime. This morning I looked more closely into the log file and 
>>> noticed:
>>>
>>> kernel: [2892926.929555] CAUTION: musb: Babble Interrupt Occurred
>>>
>>> I wasn't able to successfully reset the USB device and before I was able 
>>> to restart the BBB stopped responding. I power-cycled it and it was back to 
>>> normal again. Any ideas what caused this kernel message?
>>>
>>

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[beagleboard] BBB Sensor Input over Python

[John Doe]

Hello

Is it possible to have an Eventhandler in Python for Sensor GPIO Inputs?

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[beagleboard] Confusion with Black Beagle Board

[Giuseppe Ventura]

hi all,

This is my first test with BBB and i have some question:

1- How disabled and remove, from eMMC, X11 and others drivers, for example, 
that i dont use with systemd? I used on freescale imx53, a little app 
called LTIB where i could customize kernel and rootfs, cross-compiled on my 
pc for arm and after i buiild an SD card for my board.. Here how i can do 
this? 
2- I need some driver like GPIO,Serial Port, Ethernet for run my app 
writted with QT at start. How to do?
3- I plug my mini-usb cable on bbb and I can use Console from my pc with 
Hyperterminal for example?

Thanks for help

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[beagleboard] Help needed selecting right BeagleBone white and black board with assoiciated LCD capes

[Gazelle]

Hello Beagle Fans - I want to order a Beagle Bone white and Beagle Bone 
Black board with LCD cape from Farnell/Digikey/Mouser and want to be sure 
that I order
latest hardware and matching LCD capes ... - can anyone provide me with a 
pointer to a table / wiki page where I can retrieve such info ?

Thank you !
Michel 

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[beagleboard] BeagleBone White and BeagleBone Black - selecting right and latest hardware

[Gazelle]

Hello Beagle Fans - I want to order a Beagle Bone white and Beagle Bone 
Black board with LCD cape from Farnell/Digikey/Mouser and want to be sure 
that I order
latest hardware and matching LCD capes ... - can anyone provide me with a 
pointer to a table / wiki page where I can retrieve such info ?

Thank you !
Michel 

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[beagleboard] Re: UBIFS/U-Boot and UBIFS/Linux not compatible

[matti . kaasinen]

Hi Tom,
Somehow I had missed your answer. I'll try with your advices as soon as I 
get time for it. Unfortunately something still more urgent came up.
I'll let you know how it works out then.
Thanks,
Matti

torstai, 24. lokakuuta 2013 13.23.24 UTC+3 matti.k...@gmail.com kirjoitti:
>
> Hi!
>
> I am working on BeagleBone variant board using Ångström distribution.  
> Main difference is that NAND flash is installed on board. In fact my set-up 
> sounds pretty much same as in "NAND flash with BeagleBone 
> variant"
>  
> case. 
>
> *Short story:*
>
> UBIFS partition/volume formatted/created in Linux does not work in U-Boot. 
> UBI part command in U-boot fails. Later on Linux finds this UBIFS 
> corrupted. I don't have any problems if this UBIFS is accessed purely from 
> Linux. I have made NAND flash additions from am335x-evm.dts to BeagleBone 
> device tree. I have tried with ti,nand-ecc-opt = "bch8" (with kernel 
> options CONFIG_MTD_NAND_OMAP_BCH and
> OMAP_ECC_BCH8_CODE_HW) and without. In the latter case those kernel 
> options were not active.
>
> *Longer story* = operations and results:
>
> ==
> BOOT => Linux
>
> root@beaglebone:~# cat /proc/mtd
> ddev:size   erasesize  name
> mtd0: 0002 0002 "SPL1"
> mtd1: 0002 0002 "SPL2"
> mtd2: 0002 0002 "SPL3"
> mtd3: 0002 0002 "SPL4"
> mtd4: 001e 0002 "U-boot"
> mtd5: 0002 0002 "environment"
> mtd6: 0050 0002 "Kernel"
> mtd7: 0f88 0002 "File-System"
>
>
> root@beaglebone:~# mtdinfo /dev/mtd7
> mtd7
> Name:   File-System
> Type:   nand
> Eraseblock size:131072 bytes, 128.0 KiB
> Amount of eraseblocks:  1988 (260571136 bytes, 248.5 MiB)
> Minimum input/output unit size: 2048 bytes
> Sub-page size:  512 bytes
> OOB size:   64 bytes
> Character device major/minor:   90:14
> Bad blocks are allowed: true
> Device is writable: true
>
>
> root@beaglebone:~# ubiformat /dev/mtd7
> ubiformat: mtd7 (nand), size 260571136 bytes (248.5 MiB), 1988 eraseblocks 
> of 131072 bytes (128.0 KiB), min. I/O size 2048 bytes
> libscan: scanning eraseblock 1987 -- 100 % complete
> ubiformat: 1980 eraseblocks have valid erase counter, mean value is 2
> ubiformat: 8 bad eraseblocks found, numbers: 70, 281, 310, 964, 1590, 
> 1900, 1920, 1977
> ubiformat: formatting eraseblock 1987 -- 100 % complete
>
>
> root@beaglebone:~# ubiattach -m 7
> [  615.304815] UBI: default fastmap pool size: 95
> [  615.309712] UBI: default fastmap WL pool size: 25
> [  615.314727] UBI: attaching mtd7 to ubi0
> [  616.065041] UBI: scanning is finished
> [  616.092241] UBI: attached mtd7 (name "File-System", size 248 MiB) to 
> ubi0
> [  616.099551] UBI: PEB size: 131072 bytes (128 KiB), LEB size: 129024 
> bytes
> [  616.106760] UBI: min./max. I/O unit sizes: 2048/2048, sub-page size 512
> [  616.113780] UBI: VID header offset: 512 (aligned 512), data offset: 2048
> [  616.120891] UBI: good PEBs: 1980, bad PEBs: 8, corrupted PEBs: 0
> [  616.127267] UBI: user volume: 0, internal volumes: 1, max. volumes 
> count: 128
> [  616.134839] UBI: max/mean erase counter: 4/3, WL threshold: 4096, image 
> sequence number: 1266322069
> [  616.144425] UBI: available PEBs: 1942, total reserved PEBs: 38, PEBs 
> reserved for bad PEB handling: 32
> [  616.154993] UBI: background thread "ubi_bgt0d" started, PID 266
> UBI device number 0, total 1980 LEBs (255467520 bytes, 243.6 MiB), 
> available 1942 LEBs (250564608 bytes, 239.0 MiB), LEB size 129024 bytes 
> (126.0 KiB)
>
> root@beaglebone:~# ubimkvol /dev/ubi0 -N rootfs -m
> Set volume size to 250564608
> Volume ID 0, size 1942 LEBs (250564608 bytes, 239.0 MiB), LEB size 129024 
> bytes (126.0 KiB), dynamic, name "rootfs", alignment 1
>
> root@beaglebone:~# mkdir /mnt/rootfs
>
> root@beaglebone:~# mount -t ubifs ubi0:rootfs /mnt/rootfs
> [ 1246.100061] UBIFS: default file-system created
> [ 1246.129559] UBIFS: background thread "ubifs_bgt0_0" started, PID 279
> [ 1246.181635] UBIFS: mounted UBI device 0, volume 0, name "rootfs"(null)
> [ 1246.188687] UBIFS: LEB size: 129024 bytes (126 KiB), min./max. I/O unit 
> sizes: 2048 bytes/2048 bytes
> [ 1246.198379] UBIFS: FS size: 248887296 bytes (237 MiB, 1929 LEBs), 
> journal size 12515328 bytes (11 MiB, 97 LEBs)
> [ 1246.209066] UBIFS: reserved for root: 4952683 bytes (4836 KiB)
> [ 1246.215270] UBIFS: media format: w4/r0 (latest is w4/r0), UUID 
> BBB7B485-B786-43D4-9EF7-F237AF6C707B, small LPT model
>
> root@beaglebone:~# cd /mnt/rootfs
> root@beaglebone:/mnt/rootfs# mkdir testdir
> root@beaglebone:/mnt/rootfs# cd testdir
> root@beaglebone:/mnt/root