Re: [beagleboard] BBB wont start after power supply given. Only 3 LED lights are working out of 4.

[Robert Nelson]

>> Hello All,
>>
>>  I give power supply to my BBB. But it is not starting. Out of 4
>> LED's, only 3 LED's lights. But 4th one LED is not getting light at all.
>> That 4th LED s leftmost one.

Hold the boot button before you power the board up..

Regards,

-- 
Robert Nelson
https://rcn-ee.com/

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Re: [beagleboard] BBB wont start after power supply given. Only 3 LED lights are working out of 4.

[Bhagyashree]

Hi William,
  Thanks for such quick response. I gave power supply through USB port 
by plugging it to my laptop. 

On Monday, July 6, 2015 at 8:41:58 AM UTC+5:30, William Pretty Security 
wrote:
>
> How did you give it the supply?
>
> Thru the +5V connector or did you plug it into the USB port on you 
> computer?
>
>  
>
> *From:* beagl...@googlegroups.com  [mailto:
> beagl...@googlegroups.com ] *On Behalf Of *Bhagyashree
> *Sent:* Sunday, July 05, 2015 10:41 PM
> *To:* beagl...@googlegroups.com 
> *Subject:* [beagleboard] BBB wont start after power supply given. Only 3 
> LED lights are working out of 4.
>
>  
>
>
> Hello All,
>
>  I give power supply to my BBB. But it is not starting. Out of 4 
> LED's, only 3 LED's lights. But 4th one LED is not getting light at all. 
> That 4th LED s leftmost one. 
>
> What should I do?. Please help. 
>
> -- 
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> "BeagleBoard" group.
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> --
>
> No virus found in this message.
> Checked by AVG - www.avg.com
> Version: 2015.0.6037 / Virus Database: 4365/10138 - Release Date: 07/01/15
>

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RE: [beagleboard] BBB wont start after power supply given. Only 3 LED lights are working out of 4.

[William Pretty Security]

How did you give it the supply?

Thru the +5V connector or did you plug it into the USB port on you computer?

 

From: beagleboard@googlegroups.com [mailto:beagleboard@googlegroups.com] On 
Behalf Of Bhagyashree
Sent: Sunday, July 05, 2015 10:41 PM
To: beagleboard@googlegroups.com
Subject: [beagleboard] BBB wont start after power supply given. Only 3 LED 
lights are working out of 4.

 


Hello All,

 I give power supply to my BBB. But it is not starting. Out of 4 LED's, 
only 3 LED's lights. But 4th one LED is not getting light at all. That 4th LED 
s leftmost one. 

What should I do?. Please help. 

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  _  

No virus found in this message.
Checked by AVG - www.avg.com
Version: 2015.0.6037 / Virus Database: 4365/10138 - Release Date: 07/01/15

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[beagleboard] BBB wont start after power supply given. Only 3 LED lights are working out of 4.

[Bhagyashree]

Hello All,
 I give power supply to my BBB. But it is not starting. Out of 4 LED's, 
only 3 LED's lights. But 4th one LED is not getting light at all. That 4th 
LED s leftmost one. 
What should I do?. Please help. 

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Re: [beagleboard] Debugging Audio Cape configuration

[jrblack]

They're sold by a number of vendors (see the wiki for links) but all are 
out of stock.  Looks like it will be months before they get more in.

On Sunday, July 5, 2015 at 1:27:14 PM UTC-6, Rick M wrote:
>
>
> > On Jul 5, 2015, at 08:41 , jrb...@colorado.edu  wrote: 
> > 
> > Or wait 51 more days for the Audio Capes to be back in stock. 
>
> Where does one buy an audio cape? I've never been able to find a rev B. 
>
>
> -- 
> Rick Mann 
> rm...@latencyzero.com  
>
>
>

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Re: [beagleboard] LCD cape with 4.1 kernel

[Robert Nelson]

On Sun, Jul 5, 2015 at 7:17 PM, Philip Polstra  wrote:
> Has anyone gotten any LCD capes (4.3 or 7") to work with Ubuntu and the 4.1
> kernel?  Cape Manager seems to error out when loading firmware.  Everything
> also seems to be mostly blank (no pins used, no pinmux values, etc.).

https://github.com/beagleboard/bb.org-overlays

dtc --version

uname -r

dmesg | grep bone

Regards,

-- 
Robert Nelson
https://rcn-ee.com/

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[beagleboard] LCD cape with 4.1 kernel

[Philip Polstra]

Has anyone gotten any LCD capes (4.3 or 7") to work with Ubuntu and the 4.1
kernel?  Cape Manager seems to error out when loading firmware.  Everything
also seems to be mostly blank (no pins used, no pinmux values, etc.).

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[beagleboard] Re: RS-485 configuration Help

[A W]

Here is the actual error report back from terminal:

ValueError: Checksum error in rtu mode: '\x01x' instead of '|\xa3' . The 
response is: '\x00\x01\x06\x00\xff\x00\x01x' (plain response: 
'\x00\x01\x06\x00\xff\x00\x01x')


On Sunday, July 5, 2015 at 4:20:48 PM UTC-4, A W wrote:
>
> Ok...I seems to got it working after configuring the GPIO pin for RTS. 
> However, when I tried to communicate with modbus device, it gives me an 
> "Checksum error in rtu mode". I am using minimal modbus library, and my 
> code works fine when communicating between windows and my device.
>
> I have tested my connection with the scope and it seems to get getting the 
> correct output
>  
>
>
> 
>
>
> When testing it with the minimal modbus library, the slave ID, function 
> code and payload data is correct. It just seems to have problem getting 
> pass the error check.
>
>
>
> 
>
>
> I have configured my baud rate and parity check correctly, but I can't 
> seems to figure out why it's giving me this checksum error. Anyone have any 
> ideas where the problem is?
>
>
> On Saturday, July 4, 2015 at 6:29:11 PM UTC-4, A W wrote:
>>
>> Hello,
>>
>> I came across this tutorial on configuration for RS-485 serial 
>> communication, but I am new to this and I need some clarifications on the 
>> procedure. 
>>
>> My beaglebone black is currently running on the latest Debian image
>>
>>>
>>> Linux beaglebone 3.8.13-bone70 #1 SMP Fri Jan 23 02:15:42 UTC 2015 
>>> armv7l GNU/Linux
>>
>>  
>>
>>
>> On the website 
>> http://inspire.logicsupply.com/2014/09/beaglebone-rs-485-communication.html
>>
>> Let's dive into the Kernel a bit to to see how RS-485 works in Linux; the 
>>> standard steps to put a UART into RS-485 mode are: 
>>>
>>>1. Open the special tty file
>>>2. Create a serial_rs485 struct and set the desired configuration 
>>>values
>>>3. Pass the configured struct to Kernel driver by using ioctl 
>>> on the open 
>>>serial port file descriptor
>>>
>>> I don't understand do these steps, where do I find the special tty file 
>> and as well as creating the serial_rs485 struct. Can someone guide me 
>> through this part?
>>
>> Thank you.
>>
>>  
>>
>

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[beagleboard] Re: RS-485 configuration Help

[A W]

Ok...I seems to got it working after configuring the GPIO pin for RTS. 
However, when I tried to communicate with modbus device, it gives me an 
"Checksum error in rtu mode". I am using minimal modbus library, and my 
code works fine when communicating between windows and my device.

I have tested my connection with the scope and it seems to get getting the 
correct output
 




When testing it with the minimal modbus library, the slave ID, function 
code and payload data is correct. It just seems to have problem getting 
pass the error check.





I have configured my baud rate and parity check correctly, but I can't 
seems to figure out why it's giving me this checksum error. Anyone have any 
ideas where the problem is?


On Saturday, July 4, 2015 at 6:29:11 PM UTC-4, A W wrote:
>
> Hello,
>
> I came across this tutorial on configuration for RS-485 serial 
> communication, but I am new to this and I need some clarifications on the 
> procedure. 
>
> My beaglebone black is currently running on the latest Debian image
>
>>
>> Linux beaglebone 3.8.13-bone70 #1 SMP Fri Jan 23 02:15:42 UTC 2015 armv7l 
>> GNU/Linux
>
>  
>
>
> On the website 
> http://inspire.logicsupply.com/2014/09/beaglebone-rs-485-communication.html
>
> Let's dive into the Kernel a bit to to see how RS-485 works in Linux; the 
>> standard steps to put a UART into RS-485 mode are: 
>>
>>1. Open the special tty file
>>2. Create a serial_rs485 struct and set the desired configuration 
>>values
>>3. Pass the configured struct to Kernel driver by using ioctl 
>> on the open 
>>serial port file descriptor
>>
>> I don't understand do these steps, where do I find the special tty file 
> and as well as creating the serial_rs485 struct. Can someone guide me 
> through this part?
>
> Thank you.
>
>  
>

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Re: [beagleboard] Debugging Audio Cape configuration

[Rick Mann]

> On Jul 5, 2015, at 08:41 , jrbl...@colorado.edu wrote:
> 
> Or wait 51 more days for the Audio Capes to be back in stock.

Where does one buy an audio cape? I've never been able to find a rev B.


-- 
Rick Mann
rm...@latencyzero.com


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[beagleboard] DEFCON BBB talks

[Philip Polstra]

As an FYI, if any of your are going to DEFCON, I will be giving two talks,
one related to the BBB, and one to the CatchWire (formerly LUNA) that is
essentially a customized BBB with two gigabit Ethernet ports.

The BBB talk is this one
https://www.defcon.org/html/defcon-23/dc-23-speakers.html#Polstra and the
CatchWire talk is
https://www.defcon.org/html/defcon-23/dc-23-speakers.html#Polstra2.

We will also be giving away 2 CatchWires each with a copy of my Hacking and
Penetration Testing with Low Power Devices and my (new) Linux Forensics
books.  You can register to win these at the PentesterAcademy booth.

I'm also hoping to release version 2.1 of The Deck Linux at DEFCON for the
BBB and a custom edition of Deck Linux for the CatchWire.

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Re: [beagleboard] testing image 4.1 console and UWN200 WiFi Adapter

[ross]

Simple solution, first I compared a running lxqt image on a BBB, then  
simply apt-get install wpasupplicant on my console image and all works  
fine now.


Got to watch that console image, very basic (which is good).

Ross

Quoting William Hermans :


Have you read this yet ?
http://inspire.logicsupply.com/2014/07/beaglebone-wifi-installation.html

Comments I've read in the past indicate that problem related to this wifi
adapter range from non working drivers for distro's other than Angstrom (
until you compile your own ), and USB power not being enough when using one
of these adapters.

The link above recommends a 2A barrel jack power supply. But please do read
for yourself if you have not yet.

On Fri, Jul 3, 2015 at 8:54 PM,  wrote:


Found a mistake in my info below, I copied a testing
/etc/network/interfaces file, here is the real one:

=
root@bbb-greenbox2:/etc/network# cat interfaces
# This file describes the network interfaces available on your system
# and how to activate them. For more information, see interfaces(5).

# The loopback network interface
auto lo
iface lo inet loopback

# The primary network interface
# auto eth0
#iface eth0 inet dhcp
# Example to keep MAC address between reboots
#hwaddress ether DE:AD:BE:EF:CA:FE

# The secondary network interface
#auto eth1
#iface eth1 inet dhcp

auto ra0
iface ra0 inet dhcp
wireless-essid any
wireless-mode managed
wpa-conf /etc/wpa_supplicant/wpa_supplicant.conf

# WiFi Example
#auto wlan0
#iface wlan0 inet dhcp
#wpa-ssid "essid"
#wpa-psk  "password"

==

Quoting r...@buy-ei.com:

 Hi all and happy 4th to my US colleagues.


root@bbb-greenbox2:~# cat /etc/dogtag
BeagleBoard.org Debian Image 2015-06-29

root@bbb-greenbox2:~# uname -a
Linux bbb-greenbox2 4.1.0-bone9 #1 Wed Jun 24 03:18:08 UTC 2015 armv7l
GNU/Linux

I'm trying to get a Logic Supply USB UWN200 WiFi adapter running on my
BBB. I've installed the latest console testing image 4.1 Debian on a uSD
card. Everything is working except when the request for a DHCP address is
sent, no address is returned.

root@bbb-greenbox2:~# ifup ra0

Internet Systems Consortium DHCP Client 4.3.1
Copyright 2004-2014 Internet Systems Consortium.
All rights reserved.
For info, please visit https://www.isc.org/software/dhcp/

Listening on LPF/ra0/00:0c:43:00:00:38
Sending on   LPF/ra0/00:0c:43:00:00:38
Sending on   Socket/fallback
DHCPDISCOVER on ra0 to 255.255.255.255 port 67 interval 4
DHCPDISCOVER on ra0 to 255.255.255.255 port 67 interval 4
DHCPDISCOVER on ra0 to 255.255.255.255 port 67 interval 8
DHCPDISCOVER on ra0 to 255.255.255.255 port 67 interval 10
DHCPDISCOVER on ra0 to 255.255.255.255 port 67 interval 20
DHCPDISCOVER on ra0 to 255.255.255.255 port 67 interval 15
No DHCPOFFERS received.
No working leases in persistent database - sleeping.
root@bbb-greenbox2:~#


here are the contents of my /etc/network/interfaces file:

=
root@bbb-greenbox2:~# cat /etc/network/interfaces
# This file describes the network interfaces available on your system
# and how to activate them. For more information, see interfaces(5).

# The loopback network interface
auto lo
iface lo inet loopback

# The primary network interface
# auto eth0
#iface eth0 inet dhcp
# Example to keep MAC address between reboots
#hwaddress ether DE:AD:BE:EF:CA:FE

# The secondary network interface
#auto eth1
#iface eth1 inet dhcp

auto ra0
iface ra0 inet dhcp
wpa-ssid "WORKSHOP"
wpa-psk  "xx"


# WiFi Example
#auto wlan0
#iface wlan0 inet dhcp
#wpa-ssid "essid"
#wpa-psk  "password"
==



here are the contents of my /etc/wpa_supplicant/wpa_supplicant.conf file:
the psk="xx" is set appropriately

=
root@bbb-greenbox2:~# cat /etc/wpa_supplicant/wpa_supplicant.conf
ctrl_interface=/var/run/wpa_supplicant GROUP=netdev
ctrl_interface_group=0
ap_scan=1
update_config=1
network={
 ssid="WORKSHOP"
 psk=""
 proto=RSN
 key_mgmt=WPA-PSK
 pairwise=CCMP TKIP
 group=CCMP TKIP WEP104 WEP40
 auth_alg=OPEN
 eap=TTLS PEAP TLS
}



Any ideas would certainly be appreciated in resolving this.
I'm booting with the ethernet cable removed

Thanks,
Ross



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Re: [beagleboard] Debugging Audio Cape configuration

[jrblack]

Thanks Colin!

This means that the I2C protocol running on pins P9_19 and P9_20 (19 SCL, 
20 SDA) is required to complete before the BBB will send audio data on 
P9_28 (AUD_DOUT).

Without a cape, I don't see how I can get audio data... perhaps I can use 
an Arduino and the Wire.h library to act as an I2C slave and that may do it.

Or wait 51 more days for the Audio Capes to be back in stock.

In any case, thanks again!  

On Sunday, July 5, 2015 at 6:06:33 AM UTC-6, Colin Bester wrote:
>
> On beaglebone black (Debian3.8.13-bone68) I ran tests with and without an 
> audio cape (rev B) and confirm that speaker-test -D default:EVM does not 
> output anything on P9_28 without the audio cape connected. With audio cape 
> connected I do see ouput on P9_28.
>

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Re: [beagleboard] Debugging Audio Cape configuration

[Colin Bester]

On beaglebone black (Debian3.8.13-bone68) I ran tests with and without an 
audio cape (rev B) and confirm that speaker-test -D default:EVM does not 
output anything on P9_28 without the audio cape connected. With audio cape 
connected I do see ouput on P9_28.

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[beagleboard] Re: Kickstarter Project: BeagleCore - miniaturized computer module compatible with BeagleBone Black

[Beagle Core]

First off, thanks for your post. It's always good to ask questions. I will 
try to answer them as good as I can. 

I like the idea of a small module... but with the baseboard added, so it is 
> equivalent to a BBB, the price is $110, 2X the price of a BBB. The two must 
> be soldered together, so you don't gain a pluggable/replaceable module. 
> What is the benefit in that? 
>

BeagleCore is made for business solutions though you could also use it for 
DIY projects. The benefit arises - like sa_Penugin states in his post - 
when you use it like the Pi Compute Module. If you are using BBB as a 
development board for a project and you are planning on going into mass 
production you might want to consider having your own baseboard but still 
rely on the core features of BeagleBone Black to accomplish your goal 
without reprogramming, porting and testing everything from scratch. This is 
why we created BeagleCore.
 

> How can they promise availability for 7+ years unless they have a promise 
> from TI to make the AM335x and other parts for that long?
>

Like RobertCNelson said: TI promised at least 10 years. This is the 
information we rely on. 

How can they promise this new company will be in business for 7+ years?
>

We can not promise that. Nobody can - not even Apple or Google. But we are 
experienced in embedded systems and have a great network to rely on. Most 
people in our team have more than 15 years of experience in developing 
solutions such as the BeagleCore. Others have 10 years of experience in 
marketing and selling solutions. And Martin, the head of our team, is an 
experienced manager who knows how to run a business and make it a long term 
success. We promise to do our very best and strive for the longrun not a 
short win.

On the Beaglecore site FAQ they claim: *For genuine embedded industrial 
> applications the existing BeagleBoard hardware is not suitable due to 
> several reasons. Currently professional embedded computer-on-module 
> applications use 100% defined and well engineered standards from PICMG 
> (such as COM Express) or SGET (such as Qseven and SMARC). *How is their 
> LGA module somehow compliant with these standards? Is their baseboard? How 
> is my (required) custom baseboard any more compliant? I also question that 
> these standards are really important to a lot of applications: if they are, 
> go buy a COM Express board for way more than BBB: 
> http://www.cotsjournalonline.com/articles/view/101717
>

Before we started off with the idea of bringing BeagleCore to Kickstarter 
we carefully researched the current market situation and discussed the 
topic with quite a few companies, developers and engineers. From the 
feedback we gathered we extracted the fact that there is possibly a market 
not yet seen by those who rely on COM Express and such. I wouldn't go as 
far as calling COM Express "high end development" and BBB and alike "DIY 
development" but the difference in pricing is evident. There is a market 
for professional BBB solutions and we believe in the power of BeagleBone 
Black. 
 

> On the Beaglecore website it says the core must be carefully soldered to 
> the baseboard: *It also means that the soldering has to be executed by a 
> professional EMS company or by an experienced soldering technician. This 
> package is called Land Grid Array (LGA)*
>

Like I said before: It's more an industrial solution but if you know what 
you are doing you can do it all on your own. We are just trying to make our 
point clear about the target groups.
 

> The magic software BeagleSuite promises a lot: *Now you can create your 
> own IoT project without programming! With BeagleSuite™ the Internet of 
> Things is just a few clicks away. **Attach any sensor to your BeagleCore™ 
> powered board or simply use a BeagleBone Black, fire up BeagleSuite™ in 
> your favourite webbrowser and with a few clicks you can set up your own 
> dashboard, ruleset and actions according to your needs. *Really? Without 
> any programming? Attach "any sensor"? How does that work? It is web based 
> meaning it runs somewhere on someone's server... the part of the project 
> promised to be open source is the hardware only, not the BS software. Yes, 
> you can program it as you would a BBB and not use the BS, I'm just sayin'...
>

BeagleSuite is not the answer to everything - it's a starting point. Simple 
solutins - and most of the IoT solutions I have seen so far - are very 
basic. You can build those with a few clicks. There will be ready to run 
scripts for standard solutions. If you want to dig deeper then you might 
need some programming but still rely on the simple Drag&Drop features to 
build dashboards or rule-based actions. We have seen many solutions out 
there but BeagleSuite is probably something you want to give a try. For 7€ 
it is worth giving it a try - even if you don't use BeagleCore for it will 
run on any BBB.
 

> If just the core module is $51 (the bulk pack of 50 is USD$2569) and