date:20140902

On Mon, Sep 1, 2014 at 4:38 AM,  r...@dpwrussell.com wrote:
 I am trying to flash my Beaglebone Black, but I think perhaps there is a
 failure in the S2 boot selection button.

 dpwrussell@starbuck ~/Downloads
 $ md5sum BBB-eMMC-flasher-debian-7.5-2014-05-14-2gb.img.xz
 74615fb680af8f252c034d3807c9b4ae
 BBB-eMMC-flasher-debian-7.5-2014-05-14-2gb.img.xz

 This is correct as per the downloads page.

 dpwrussell@starbuck ~/Downloads
 $ sudo dd bs=1M if=BBB-eMMC-flasher-debian-7.5-2014-05-14-2gb.img.xz
 of=/dev/disk1

unxz first...

 Password:
 470+1 records in
 470+1 records out
 492868180 bytes (493 MB) copied, 325.311 s, 1.5 MB/s

 Seems to write correctly.

Regards,

-- 
Robert Nelson
http://www.rcn-ee.com/

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Re: [beagleboard] How to remove Cloud9 - files from BBB

On Sun, Aug 31, 2014 at 6:03 AM,  m...@zepler.org wrote:
 Robert,

 So far so good!

 I set a root password, created a regular user account, ran apt-get update 
 upgrade.

 I've installed the following packages:
 avahi-daemon nodejs nodejs-legacy nom ntp git man-db

 I used dpkg-reconfigure tzdata to set my timezone information, configured
 git, and I should be good to go.

 However, I don't see a dtc command. Should this not be included in the
 initial image? It seems pretty fundamental to using the BBB!

Nah, it's not essential to boot or flash the eMMC, thus it's not
installed on the console image.

sudo apt-get install device-tree-compiler

Regards,

-- 
Robert Nelson
http://www.rcn-ee.com/

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[beagleboard] Re: How to use UART Serial Port Using BoneScript Library

2014-09-02 Thread amer . abufadel

Hello Mark and Jason,
  I tried using your script in cloud9 as well as using node and I get the 
same error:

b.serialOpen(port, options, onSerial);
  ^
TypeError: Object #Object has no method 'serialOpen'


What am I missing?


Thank you,

Amer

On Monday, April 7, 2014 1:13:13 PM UTC-4, Jason Kridner wrote:



 On Thursday, March 27, 2014 4:59:00 PM UTC-4, Mark A. Yoder wrote:

 Nick:
   I have some bonescript code that works with the UART, but I'm not using 
 the built-in bonescript calls. It works fine with a GPS, though I don't use 
 it to transmit.

 I took would like to see an example that uses the bonescript calls. 


 I haven't had a chance to try it out as I don't have a device easy to 
 wire-up until later today, but can you try out this live in-a-webpage 
 example at: http://jsfiddle.net/jkridner/AjnJs/

  

  Before ruing the code you need to:

 beagle# *npm install -g serialport*


 BoneScript simply uses this same library, so using BoneScript avoids 
 needing to install it.
  


 beagle# *echo BB-UART4  /sys/devices/bone_capemgr.*/slots*


 BoneScript loads this same overlay for you.

 A basic listening example would be:

 var b = require('bonescript');
 var port = '/dev/ttyO4';
 var options = {
 baudrate: 115200
 };

 b.serialOpen(port, options, onSerial);

 function onSerial(x) {
 if (x.err) {
 console.log('***ERROR*** ' + JSON.stringify(x));
 }
 if (x.event == 'open') {
console.log('***OPENED***');
 }
 if (x.event == 'data') {
 console.log(String(x.data));
 }
 }

 To write, you'd do:

 b.serialWrite(port, data);


 Hopefully you'll see some value in the simplicity.

  


 --Mark
 #!/usr/bin/env node
 // From: https://github.com/voodootikigod/node-serialport
 // From: https://github.com/jamesp/node-nmea

 var b = require('bonescript');
 var nmea = require('nmea');

 //console.log(b.serialOpen);

 //var sp = b.serialOpen('/dev/ttyO4', {baudrate: 9600} );
 // parser: b.serialParsers.readline(\n)});


 var serialport = require(serialport);
 var SerialPort = serialport.SerialPort; // localize object constructor

 var sp = new SerialPort(/dev/ttyO4, {
 parser: serialport.parsers.readline(\n)
 });

 sp.on(data, function (data) {
 console.log(here: +data);
 console.log(nmea.parse(data));
 });


 On Thursday, December 19, 2013 1:49:30 AM UTC-5, Nick Farrell wrote:

 I am a newbie to BeagleBone Black(BBB) but have good knowledge about 
 Arduino. I would like to know how to open a serial port in BBB using the 4 
 UARTs available in BBB using BoneScript library and use cloud9 ide to see 
 the serial data on the console. Can anyone help me on this issue.



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Re: [beagleboard] Python script stops reading serial port after several days

2014-09-02 Thread Miguel Aveiro


Hi Chris,

I don't think the problem is related to the serial port itself. I have a 
python code that uses 4 serial ports of BBB (tty01, tty02, tty04, tty05) 
running without any problem for months.


I saw your code. If it reaches the Dropping out due to an error: , I 
don't think it will keep running.


Use the logging module to write to a file when there is an exception:
https://docs.python.org/2/howto/logging.html

Use repr() instead of the str() to show the error, as it returns a 
string containing a printable representation of an object., and it is 
easier to see what's wrong.

https://docs.python.org/2/library/functions.html#func-repr

If you catch the problem with the logging module, send an email and I 
can help you with more details.


Miguel

On 31-08-2014 22:55, chrismyer...@gmail.com wrote:

Hi everyone!

I've got my BBB rev. C set up as a data logger for a serial data 
stream from an Arduino. It basically takes this data, uploads it to 
xively, and checks certain values for exceeded thresholds and sends an 
email if found. This works fine. However, after the script has been 
running for several days, it stops working. The script itself seems to 
continue running, but it stops acknowledging that it's receiving any 
data or trying to upload to xively. If I ctrl+c out of the script and 
restart it, it starts working fine again. The device it's connected to 
continues to work properly regardless of whether the BBB is logging 
anything, so I don't believe that the problem is with it.


Is there any way to determine where the problem lies? (BBB, python, 
etc.?) Here's a copy of my code (please don't mock it too much, I'm a 
Python noob) :

http://susepaste.org/399d9d1f

(This is what the data looks like if it makes any difference:
2014-08-31 20:51:38.841985
91,h,44

2014-08-31 20:51:40.063139
92,t,72

2014-08-31 20:51:44.727206
92,h,42

2014-08-31 20:51:45.463794
90,t,71

2014-08-31 20:52:17.112091
90,h,44

...)

I've Googled around, and haven't really found anything regarding 
something like this. There were a couple of random bulletin board 
posts that seemed similar, but they all went off into no-answer-land.


Thanks in advance :)
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Re: [beagleboard] SD port broken?

2014-09-02 Thread Mario Giammarco

http://pastebin.com/DezagJXu

I use kingston and samsung sdHc.

Il giorno lunedì 1 settembre 2014 20:19:54 UTC+2, RobertCNelson ha scritto:

   Is it possible that the sd port is broken? The item is brand new. 
  
  What type of microSD cards? (SDXC are not supported) 
  
  
  Do you mean sdhc? 

 No i specifically meant SDXC as that would explain why it doesn't work.. 

 http://en.wikipedia.org/wiki/Secure_Digital#SDXC 

 based on your response, you have a SD/SDHC so that should be good.. 

 What brand/model? 

 pastebin.com your dmesg 

 (if pastebinit is installed you can run:) 

 dmesg | pastebinit 

 Regards, 

 -- 
 Robert Nelson 
 http://www.rcn-ee.com/ 


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[beagleboard] Re: 16+ Analog Input Options for Beaglebone

2014-09-02 Thread Richard St-Pierre

A common practice to increase the number of ADC channels is to use an 
Analog Multiplexer (MUX).  Use a few GPIO bits to control the addressing. 
 
You can provide a single point buffer to support the 0-5 to 0-1.8V scaling.
Cheers

On Monday, September 1, 2014 9:47:24 AM UTC-4, jona.he...@gmail.com wrote:

 I would like to use the BeagleBone to acquire 16 analog signals.  The 
 transducers will be a mix of resistive temperature and current sensors.   
  The temperature sensors will produce a signal between 0~5V and the current 
 transformers will output of 0~0.333V.  The BeagleBone Black is limited to 7 
 analog inputs.  I was not able to find a cape that offers 16 analog inputs. 
   

 1.  Does a BeagleBone Black cape exist that will multiplex and signal 
 condition 16 analog signals (0~5V).
 2.  If this does not exist, can one of the BeagleBone experts recommend an 
 alternative.

 Thanks in advance.


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[beagleboard] Using g_ether/g_multi

2014-09-02 Thread penou87

Hi all,

I have quite troubles with using g_ether/g_multi.

Hardware:
BBB.

Software :
Linux arm 3.15.10-bone8 #1 Tue Sep 2 02:20:52 PDT 2014 armv7l armv7l armv7l 
GNU/Linux
Ubuntu 14.04

The A8 boots fine however I can't ping my usb0 interface with my PC.
The setup of my interface is the following :
*auto lo   
  *
*iface lo inet loopback*



*auto eth0 
   *
*iface eth0 inet dhcp  *


*auto usb0 
*
*iface usb0 inet static   *
*address 192.168.7.2   
  *
*netmask 255.255.255.0 
*
*network 192.168.7.0   
   *
*gateway 192.168.7.1*
  

The result of my lsmod is the following:
*Module  Size  Used by*
 
*g_ether 3694  0   
 *
*snd_soc_omap2562  0   
   *
*snd_pcm_dmaengine   4938  1 snd_soc_omap   
 *
*snd_soc_core  156036  1 snd_soc_omap   
 *
*snd_compress   11202  1 snd_soc_core   
 *
*snd_pcm70240  3 
snd_soc_core,snd_soc_omap,snd_pcm_dmaengine  *
*snd_timer  15971  1 snd_pcm  *
*snd53346  4 
snd_soc_core,snd_timer,snd_pcm,snd_compress *
*soundcore   6731  1 snd  *
*omap_aes   12664  0*
*omap_sham  18431  0*
*ti_am335x_adc   4491  0   *
*kfifo_buf   2407  1 ti_am335x_adc*
*evdev   7805  1 *
*rtc_omap5107  0  *
*industrialio   41829  2 ti_am335x_adc,kfifo_buf *
*usb_f_eem   7407  1*
*usb_f_rndis21745  2 g_ether   *
*libcomposite   35331  3 usb_f_eem,usb_f_rndis,g_ether *
*u_ether10825  3 usb_f_eem,usb_f_rndis,g_ether*
   
Furthermore, when connected to my PC, the RDNIS driver is not even loaded 
by Windows.

I don't really see from where the problem can come. Do anyone have an idea ?

Regards,

Julien.

PS: here is the link of my dmesg http://pastebin.com/XMBGKFfr

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[beagleboard] Interface eth0 won't show up

2014-09-02 Thread penou87

Hi all,

I have problems with the eth0 interface.

Hardware:
Custom BBB with no EEPROM.

Software :
Linux arm 3.15.10-bone8 #1 Tue Sep 2 02:20:52 PDT 2014 armv7l armv7l armv7l 
GNU/Linux
Ubuntu 14.04

The A8 boots fine however I don't see my eth0 interface.
I tried using the Angstrom kernel at start and I could use ethernet. 
However, I couldn't see my eMMC so that's why I decided to go with a latest 
kernel and OS.

I don't really see from where the problem can come. Do anyone have an idea ?

Regards,

Julien.

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[beagleboard] Re: BBB 24-bit LCD using device tree

2014-09-02 Thread David Anders

 http://elinux.org/24bit_LCD_for_BBB

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Re: [beagleboard] Can allocated pins on BBB be used as GPIOs ?

2014-09-02 Thread halfbrain

Thanks for your quick responses always.
I've tried the Instructions to build the Kernel
git clone https://github.com/RobertCNelson/bb-kernel.git
cd bb-kernel/

git checkout origin/am33x-v3.8 -b tmp



 


but if use the command ./build_kernel.sh . i get this message after the 
resolving deltas process. I've tried several times but it always freezes 
at 96%. Do you have any Idea what went wrong?

this is what i get in the commandshell:

root@beaglebone:/bb-kernel# ./build_kernel.sh
+ Detected build host [Debian GNU/Linux 7.5 (wheezy)]
+ host: [armv7l]
+ git HEAD commit: [e496a19d1fed586a7e82c3cd74f0571491a526ca]
-
scripts/gcc: Using: gcc (Debian 4.6.3-14) 4.6.3
Copyright (C) 2011 Free Software Foundation, Inc.
This is free software; see the source for copying conditions.  There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
-
CROSS_COMPILE=
-
scripts/git: LINUX_GIT not defined in system.sh
cloning https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git 
into default location: /bb-kernel/ignore/linux-src
Cloning into '/bb-kernel/ignore/linux-src'...
remote: Counting objects: 3758162, done.
remote: Compressing objects: 100% (567907/567907), done.
remote: Total 3758162 (delta 3168580), reused 3749734 (delta 3160289)
Receiving objects: 100% (3758162/3758162), 794.38 MiB | 1.37 MiB/s, done.
error: index-pack died of signal 968580)
fatal: index-pack failed
root@beaglebone:/bb-kernel#



Am Montag, 1. September 2014 17:39:11 UTC+2 schrieb john3909:


 From: halfbrain adrian@gmail.com javascript:
 Reply-To: beagl...@googlegroups.com javascript: 
 beagl...@googlegroups.com javascript:
 Date: Monday, September 1, 2014 at 8:23 AM
 To: beagl...@googlegroups.com javascript: beagl...@googlegroups.com 
 javascript:
 Subject: Re: [beagleboard] Can allocated pins on BBB be used as GPIOs ?

 I'm using Derek Molloys device Tree overlays and I'm running debian... I 
 can't find the folder on my bbb .

 But I found the am335x-bone-common.dtsi 
 https://github.com/derekmolloy/boneDeviceTree/blob/master/DTSource3.8.13/am335x-bone-common.dtsi
  in  
 https://github.com/derekmolloy/boneDeviceTree/tree/master/DTSource3.8.13 
 which I have on my bbb. I've commented out the section you mentioned but 
 nothing changes. Without using or declaring the I2c2 pins in my Device Tree 
 Overlay I'm able to use all unallocated pins as GPIO Inputs as I declared 
 them in my Device Tree Overlay. 

 Did i change the wrong am335x-bone-common.dtsi 
 https://github.com/derekmolloy/boneDeviceTree/blob/master/DTSource3.8.13/am335x-bone-common.dtsi.?
  
 Is there another one elsewhere on the debian distribution or do i have to 
 copy the changed file into a specific folder?

 You need to follow:


 http://eewiki.net/display/linuxonarm/BeagleBone+Black#BeagleBoneBlack-LinuxKernel

 After the kernel has built, you will see a KERNEL folder which includes 
 the complete Linux Kernel. In that folder, go to /arch/arm/boot/dts and 
 edit the am335x-bone-common.dtsi file. After that, return to the bb-kernel 
 folder and run tools/rebuild.sh script. The build results will be in the 
 deploy folder which you need to copy to your sdcard/“nfs folder”.

 Regards,
 John



 Am Sonntag, 31. August 2014 20:59:21 UTC+2 schrieb john3909:


 From: halfbrain adrian@gmail.com
 Reply-To: beagl...@googlegroups.com beagl...@googlegroups.com
 Date: Sunday, August 31, 2014 at 2:30 AM
 To: beagl...@googlegroups.com beagl...@googlegroups.com
 Subject: Re: [beagleboard] Can allocated pins on BBB be used as GPIOs ?

 how do u use the i2c2 pins? it doesn't work on my bbb if i only change 
 the pinmode to mode 7 in my device tree. have u done additional changes or 
 something like that elsewhere?

 If you look at /arch/arm/boot/dts/am335x-bone-common.dtsi you will see 
 the i2c2 definition:

 i2c2 { status = okay; pinctrl-names = default; pinctrl-0 = 
 i2c2_pins; clock-frequency = 10; cape_eeprom0: cape_eeprom0@54 { 
 compatible = at,24c256; reg = 0x54; }; cape_eeprom1: cape_eeprom1@55 
 { compatible = at,24c256; reg = 0x55; }; cape_eeprom2: 
 cape_eeprom2@56 { compatible = at,24c256; reg = 0x56; }; 
 cape_eeprom3: cape_eeprom3@57 { compatible = at,24c256; reg = 0x57; 
 };};The line “pinctrl-0 = i2c2_pins;” refers to the i2cs_pins label 
 in the pinmux section:

   i2c2_pins: pinmux_i2c2_pins { 
 pinctrl-single,pins =  
 0x178 0x73 /* uart1_ctsn.i2c2_sda, SLEWCTRL_SLOW | INPUT_PULLUP | MODE3 
 */ 
 0x17c 0x73 /* uart1_rtsn.i2c2_scl, SLEWCTRL_SLOW | INPUT_PULLUP | MODE3 
 */ 
  ; 
  }; 

 So, as you can see, i2c2 is used to identify the capes plugged into the 
 BBB. If you don’t need this feature, simply remove or comment out this 
 section and then change the i2c2 pins to gpio pins.

 Regards,
 John


 Am Montag, 19. Mai 2014 12:20:03 UTC+2 schrieb Dhruv Vyas:

 Thanks John. Got it cleared. :)

 On Monday, May 19, 2014 1:49:16 AM UTC+5:30,

Re: [beagleboard] Re: 3 proposed patches for next 3.8.13-bone5x update

2014-09-02 Thread Scott Michel

Alex:

This conversation seemed to have gotten lost in the myriad of e-mails I get
per day. Sorry for the delayed reply.

Disable the HDMI interface and enable the 4 LCD, by putting this line into
/boot/uboot/uEnv.txt:

optargs=capemgr.disable_partno=BB-BONELT-HDMI,BB-BONELT-HDMIN
capemgr.enable_partno=BB-BONE-LCD4-01

If you have an existing optargs= line, comment it out with a hash mark,
e.g., #optargs =.

I don't think the bpp parameter makes much difference to the frame buffer
device or the X server.

Let me know how this work out!


-scooter


On Fri, Aug 15, 2014 at 4:02 PM, Alexander Hayman misterhay...@gmail.com
wrote:

 I checked the difference between the dts's.  It looks like the only
 difference that matters is the panel-info {  bpp } value.  BB-BONE has a
 bpp of 24.  BB-VIEW has a bpp of 32.  The display-timings information is
 all identical.

 Would it then make sense that the image is scaled and the colors are
 corrupted if the 4D Systems screen is using the BB-VIEW dtb file with the
 slightly higher bpp value?

 Alex

 On Friday, August 15, 2014 2:41:05 PM UTC-4, Alexander Hayman wrote:

  I am using Robert's bb-kernel git repo to build the kernel.  It looks
 like we are using the exact same compiler.
 Linux version 3.8.13-bone62 (root@debian) (gcc version 4.7.3 20130328
 (prerelease) (crosstool-NG linaro-1.13.1-4.7-2013.04-20130415 - Linaro
 GCC 2013.04) )

 I noticed that you are passing specific commands to the capemgr.
 capemgr.enable_partno=BB-VIEW-LCD4-01  This I am not doing.  Should I
 be doing this? If I force it to capemgr.enable_partno=BB-BONE-LCD4-01,
 then maybe it will work even if your patch is installed?

 This is what the detection of the screen looks like on my kernel without
 the patches.  Maybe the kernel is getting confused and using BB-VIEW dtb
 for my LCD instead of BB-BONE dtb?

 [0.725548] bone-capemgr bone_capemgr.9: Baseboard:
 'A335BNLT,00A5,4110BBBK'
 [0.725572] bone-capemgr bone_capemgr.9: compatible-baseboard=ti,
 beaglebone-black
 [0.755349] bone-capemgr bone_capemgr.9: slot #0: No cape found
 [0.792456] bone-capemgr bone_capemgr.9: slot #1: No cape found
 [0.829564] bone-capemgr bone_capemgr.9: slot #2: No cape found
 [0.859739] bone-capemgr bone_capemgr.9: slot #3: '4D 4.3 LCD CAPE-
 4DCAPE-43T ,00A1,4D SYSTEMS  ,BB-BONE-LCD4-01'
 [0.859839] bone-capemgr bone_capemgr.9: slot #4: specific override
 [0.859859] bone-capemgr bone_capemgr.9: bone: Using override eeprom
 data at slot 4
 [0.859873] bone-capemgr bone_capemgr.9: slot #4:
 'Bone-LT-eMMC-2G,00A0,Texas Instrument,BB-BONE-EMMC-2G'
 [0.859945] bone-capemgr bone_capemgr.9: slot #5: specific override
 [0.859963] bone-capemgr bone_capemgr.9: bone: Using override eeprom
 data at slot 5
 [0.859977] bone-capemgr bone_capemgr.9: slot #5:
 'Bone-Black-HDMI,00A0,Texas Instrument,BB-BONELT-HDMI'
 [0.860046] bone-capemgr bone_capemgr.9: slot #6: specific override
 [0.860063] bone-capemgr bone_capemgr.9: bone: Using override eeprom
 data at slot 6
 [0.860077] bone-capemgr bone_capemgr.9: slot #6:
 'Bone-Black-HDMIN,00A0,Texas Instrument,BB-BONELT-HDMIN'
 [0.860405] bone-capemgr bone_capemgr.9: loader: before slot-3
 BB-BONE-LCD4-01:00A1 (prio 0)
 [0.860420] bone-capemgr bone_capemgr.9: loader: check slot-3
 BB-BONE-LCD4-01:00A1 (prio 0)
 [0.860500] bone-capemgr bone_capemgr.9: loader: before slot-4
 BB-BONE-EMMC-2G:00A0 (prio 1)
 [0.860512] bone-capemgr bone_capemgr.9: loader: check slot-4
 BB-BONE-EMMC-2G:00A0 (prio 1)
 [0.860585] bone-capemgr bone_capemgr.9: loader: before slot-5
 BB-BONELT-HDMI:00A0 (prio 1)
 [0.860598] bone-capemgr bone_capemgr.9: loader: check slot-5
 BB-BONELT-HDMI:00A0 (prio 1)
 [0.860632] bone-capemgr bone_capemgr.9: initialized OK.
 [0.861126] bone-capemgr bone_capemgr.9: loader: after slot-3
 BB-BONE-LCD4-01:00A1 (prio 0)
 [0.861145] bone-capemgr bone_capemgr.9: slot #3: Requesting part
 number/version based 'BB-BONE-LCD4-01-00A1.dtbo
 [0.861167] bone-capemgr bone_capemgr.9: slot #3: Requesting firmware
 'BB-BONE-LCD4-01-00A1.dtbo' for board-name '4D 4.3 LCD CAPE- 4DCAPE-43T
 ', version '00A1'
 [0.861186] bone-capemgr bone_capemgr.9: slot #3: dtbo
 'BB-BONE-LCD4-01-00A1.dtbo' loaded; converting to live tree
 [0.861686] bone-capemgr bone_capemgr.9: slot #3: #4 overlays


 On 8/13/2014 3:06 PM, Scott Michel wrote:

  Alexander:

 Short answer: It works for me. :-)

  It turns out that a colleague has an Element-14 4.3 LCD cape here at
 work. I just booted up after changing uEnv.txt. Hard to work on the BBB at
 that screen resolution, but I don't have the image compression that you
 experienced.

  I'm not at the most recent tag on Robert's tree, but I could test it
 later this week. But given that the E-14 4.3 LCD cape works, it makes me
 wonder if the problem isn't with the DTB's pixel and dot clocking params?

  Now, I'll admit that I compiled my kernel with the 4.7.3

[beagleboard] Jr. Java Developers required $35\hr

2014-09-02 Thread Umesh IT Rec

Greetings



One of our client is looking for multiple Jr. Java Developer for upgrade of
their existing Applications, in NJ.



Modernizing multiple legacy applications.

Location: Trenton, NJ

Duration 12+ mths

Positions: 20 (State Project)



Skills required: Knowledge of Core Java is an essential pre-req. The
laterals should have worked at least on one complete development life cycle
of a Java/J2EE project. Knowledge of additional Java Frameworks would be a
plus.



Thanks
Umesh

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[beagleboard] BBB Debian lspci command doesn't work

2014-09-02 Thread ec123ec

Hi,

I've tried it logged in as debian@ and root@.  

root@myBBB$lspci
pcilib: Cannot open /proc/buss/pci
lspci: Cannot find any working access method.


I list /proc/buss, and only one folder is there, input

Do I have to modify a config file or something to get lspci to work on BBB 
Deb?

Thanks,

EC

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Re: [beagleboard] BBB Debian lspci command doesn't work

On Tue, Sep 2, 2014 at 11:27 AM,  ec12...@gmail.com wrote:
 Hi,

 I've tried it logged in as debian@ and root@.

 root@myBBB$lspci
 pcilib: Cannot open /proc/buss/pci
 lspci: Cannot find any working access method.


 I list /proc/buss, and only one folder is there, input

 Do I have to modify a config file or something to get lspci to work on BBB
 Deb?

There is no pci bus on the am335x.

Regards,

-- 
Robert Nelson
http://www.rcn-ee.com/

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Re: [beagleboard] Can allocated pins on BBB be used as GPIOs ?

From:  halfbrain adrian.mitev...@gmail.com
Reply-To:  beagleboard@googlegroups.com beagleboard@googlegroups.com
Date:  Tuesday, September 2, 2014 at 9:09 AM
To:  beagleboard@googlegroups.com beagleboard@googlegroups.com
Subject:  Re: [beagleboard] Can allocated pins on BBB be used as GPIOs ?

 Thanks for your quick responses always.
 I've tried the Instructions to build the Kernel
 git clone https://github.com/RobertCNelson/bb-kernel.git
 cd bb-kernel/

 git checkout origin/am33x-v3.8 -b tmp

You need to be building this on your desktop, not on your BBB.

Regards,
John

 but if use the command ./build_kernel.sh . i get this message after the
 resolving deltas process. I've tried several times but it always freezes at
 96%. Do you have any Idea what went wrong?

 this is what i get in the commandshell:

 root@beaglebone:/bb-kernel# ./build_kernel.sh
 + Detected build host [Debian GNU/Linux 7.5 (wheezy)]
 + host: [armv7l]
 + git HEAD commit: [e496a19d1fed586a7e82c3cd74f0571491a526ca]
 -
 scripts/gcc: Using: gcc (Debian 4.6.3-14) 4.6.3
 Copyright (C) 2011 Free Software Foundation, Inc.
 This is free software; see the source for copying conditions.  There is NO
 warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
 -
 CROSS_COMPILE=
 -
 scripts/git: LINUX_GIT not defined in system.sh
 cloning https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
 into default location: /bb-kernel/ignore/linux-src
 Cloning into '/bb-kernel/ignore/linux-src'...
 remote: Counting objects: 3758162, done.
 remote: Compressing objects: 100% (567907/567907), done.
 remote: Total 3758162 (delta 3168580), reused 3749734 (delta 3160289)
 Receiving objects: 100% (3758162/3758162), 794.38 MiB | 1.37 MiB/s, done.
 error: index-pack died of signal 968580)
 fatal: index-pack failed
 root@beaglebone:/bb-kernel#

 Am Montag, 1. September 2014 17:39:11 UTC+2 schrieb john3909:

 From:  halfbrain adrian@gmail.com javascript: 
 Reply-To:  beagl...@googlegroups.com javascript: 
 beagl...@googlegroups.com javascript: 
 Date:  Monday, September 1, 2014 at 8:23 AM
 To:  beagl...@googlegroups.com javascript:  beagl...@googlegroups.com
 javascript: 
 Subject:  Re: [beagleboard] Can allocated pins on BBB be used as GPIOs ?

 I'm using Derek Molloys device Tree overlays and I'm running debian... I
 can't find the folder on my bbb .

 But I found the am335x-bone-common.dtsi
 https://github.com/derekmolloy/boneDeviceTree/blob/master/DTSource3.8.13/am
 335x-bone-common.dtsi  in
 https://github.com/derekmolloy/boneDeviceTree/tree/master/DTSource3.8.13
 which I have on my bbb. I've commented out the section you mentioned but
 nothing changes. Without using or declaring the I2c2 pins in my Device Tree
 Overlay I'm able to use all unallocated pins as GPIO Inputs as I declared
 them in my Device Tree Overlay.

 Did i change the wrong am335x-bone-common.dtsi
 https://github.com/derekmolloy/boneDeviceTree/blob/master/DTSource3.8.13/am
 335x-bone-common.dtsi .? Is there another one elsewhere on the debian
 distribution or do i have to copy the changed file into a specific folder?
 You need to follow:

 http://eewiki.net/display/linuxonarm/BeagleBone+Black#BeagleBoneBlack-LinuxKe
 rnel

 After the kernel has built, you will see a KERNEL folder which includes the
 complete Linux Kernel. In that folder, go to /arch/arm/boot/dts and edit the
 am335x-bone-common.dtsi file. After that, return to the bb-kernel folder and
 run tools/rebuild.sh script. The build results will be in the deploy folder
 which you need to copy to your sdcard/³nfs folder².

 Regards,
 John

 Am Sonntag, 31. August 2014 20:59:21 UTC+2 schrieb john3909:

 From:  halfbrain adrian@gmail.com
 Reply-To:  beagl...@googlegroups.com beagl...@googlegroups.com
 Date:  Sunday, August 31, 2014 at 2:30 AM
 To:  beagl...@googlegroups.com beagl...@googlegroups.com
 Subject:  Re: [beagleboard] Can allocated pins on BBB be used as GPIOs ?

 how do u use the i2c2 pins? it doesn't work on my bbb if i only change the
 pinmode to mode 7 in my device tree. have u done additional changes or
 something like that elsewhere?
 If you look at /arch/arm/boot/dts/am335x-bone-common.dtsi you will see the
 i2c2 definition:

 i2c2 {
 status = okay;
 pinctrl-names = default;
 pinctrl-0 = i2c2_pins;
 clock-frequency = 10;
 cape_eeprom0: cape_eeprom0@54 {
 compatible = at,24c256;
 reg = 0x54;
 };
 cape_eeprom1: cape_eeprom1@55 {
 compatible = at,24c256;
 reg = 0x55;
 };
 cape_eeprom2: cape_eeprom2@56 {
 compatible = at,24c256;
 reg = 0x56;
 };
 cape_eeprom3: cape_eeprom3@57 {
 compatible = at,24c256;
 reg = 0x57;
 };
 };
 The line ³pinctrl-0 = i2c2_pins;² refers to the i2cs_pins label in the
 pinmux section:

   i2c2_pins: pinmux_i2c2_pins {
 pinctrl-single,pins = 
 0x178 0x73 /* uart1_ctsn.i2c2_sda, SLEWCTRL_SLOW | INPUT_PULLUP | MODE3 */
 0x17c 0x73 /*

[beagleboard] Re: Hostapd failed with USB WiFi dongle (RTL8188CUS 802.11n)

2014-09-02 Thread nadir . younees

hi, i'm encountring the same problem, did you solve this problem? if yes, 
how??

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Re: [beagleboard] Re: Device Tree Compiler

From:  Amit Sama amitsama@gmail.com
Reply-To:  beagleboard@googlegroups.com beagleboard@googlegroups.com
Date:  Sunday, August 31, 2014 at 4:27 AM
To:  beagleboard@googlegroups.com beagleboard@googlegroups.com
Subject:  Re: [beagleboard] Re: Device Tree Compiler

 Hi John,

 Thanks for your reply. You mean whatever we have to send and receive should be
 done via spidev1.0 only ?
No, you can use any SPI interface and any chip select as long as they are
defined in the devicetree. If you define the SPI device in the devicetree
correctly then they will show up in /dev.

Regards,
John

 Best Regards,
 Amit Sama

 On 28 August 2014 16:28, John Syn john3...@gmail.com wrote:

 From:  Amit Sama amitsama@gmail.com
 Reply-To:  beagleboard@googlegroups.com beagleboard@googlegroups.com
 Date:  Thursday, August 28, 2014 at 7:49 AM
 To:  beagleboard@googlegroups.com beagleboard@googlegroups.com

 Subject:  Re: [beagleboard] Re: Device Tree Compiler

 Hi all, 

 Thanks for your support till now. I am really grateful to you.

 While I going through the reference manual of the arm processor on the BBB,
 I came to know that the processor has the capacity for 4 SPI channels but
 BBB only provides 2 channels.

 1) So I want to know if spidev1.0 and spidev1.1 are the interfaces for just
 one channel (because I have read the spidevB.C means channel B and device C)
 why are they two in number. Does these files represent the SLAVES which
 could be attached with this channel ?
 I believe that is SPI Channel and SPI Chip Select.

 Regards,
 John

 And please understand that I am not yelling or complaining. I am just new to
 this kind of thing. While reading the material through web I gets answers
 but also get questions. I hope you all don't mind my questions. I apologize
 if you do. 

 Best Regards,
 Amit Sama
 Pursuing M.Sc. Informatics
 Technical University Munich
 Contact : +49-15214455380 tel:%2B49-15214455380

 On 28 August 2014 01:31, William Hermans yyrk...@gmail.com wrote:
 What can be the meaning here?

 Learn how to use your tools before half fast using / complaining about them
 ?

 On Wed, Aug 27, 2014 at 12:55 PM, 'Mark Lazarewicz' via BeagleBoard
 beagleboard@googlegroups.com wrote:
 What can be the meaning here?Sent from Yahoo Mail on Android
 http://overview.mail.yahoo.com/mobile/?.src=Android

   From:  Robert Nelson robertcnel...@gmail.com;
   To:  Beagle Board beagleboard@googlegroups.com;
   Subject:  Re: [beagleboard] Re: Device Tree Compiler
   Sent:  Wed, Aug 27, 2014 7:18:21 PM

  On Wed, Aug 27, 2014 at 4:39 AM, Amit Sama amitsama@gmail.com
 wrote:
  Hi Robert,

  Though I managed to enable the spi interface on my BB. I have following
  questions/information:

  1) I have following urls in /etc/apt/sources.list

  THESE WERE EARLIER IN THE BBB

  #deb http://ports.ubuntu.com/ubuntu-ports/
 http://ports.ubuntu.com/ubuntu-ports/ raring main universe multiverse
  #deb-src http://ports.ubuntu.com/ubuntu-ports/
 http://ports.ubuntu.com/ubuntu-ports/ raring main universe
  multiverse

  #deb http://ports.ubuntu.com/ubuntu-ports/
 http://ports.ubuntu.com/ubuntu-ports/ raring-updates main universe
  multiverse
  #deb-src http://ports.ubuntu.com/ubuntu-ports/
 http://ports.ubuntu.com/ubuntu-ports/ raring-updates main universe
  multiverse

  THESE I COPIED FROM THE link IN ORDER TO SOLVE THE PROBLEM

  deb http://archive.ubuntu.com/ubuntu/
 http://archive.ubuntu.com/ubuntu/ precise main restricted universe
  multiverse
  deb http://archive.ubuntu.com/ubuntu/
 http://archive.ubuntu.com/ubuntu/ precise-updates main restricted
  universe multiverse
  deb http://archive.ubuntu.com/ubuntu/
 http://archive.ubuntu.com/ubuntu/ precise-backports main restricted
  universe multiverse
  deb http://security.ubuntu.com/ubuntu
 http://security.ubuntu.com/ubuntu precise-security main restricted
  universe multiverse
  deb http://archive.canonical.com/ubuntu
 http://archive.canonical.com/ubuntu precise partner
  deb http://extras.ubuntu.com/ubuntu  http://extras.ubuntu.com/ubuntu
 precise main

  THESE I COPIED FROM MY DESKTOP
  #deb http://archive.ubuntu.com/ubuntu/
 http://archive.ubuntu.com/ubuntu/ precise main restricted universe
  multiverse
  #deb http://security.ubuntu.com/ubuntu/
 http://security.ubuntu.com/ubuntu/ precise-security main restricted
  universe multiverse
  #deb http://archive.ubuntu.com/ubuntu/
 http://archive.ubuntu.com/ubuntu/ precise-update main restricted
  universe multiverse

  NONE OF THEM WORKS, DO TELL ME WHAT ARE THE RIGHT URLS

 Yelling isn't going to fix this problem, either is random coping the
 right URLS's.

 So to repeat:

 quote
 So at this point, i'm just going to say... You totally hosed your OS
 doing some random stuff, that why it doesn't work..

 Start over with a fresh image.
 /quote

  2) I could see these two files in /dev/spidev1.0 and /dev/spidev1.1 .
 Though
  I configures for the spi0 channel I

[beagleboard] Problem getting i2c bus to work with SSD1803a based LCD

2014-09-02 Thread cl

I am trying to get my BBB to talk to an SSD1803a based LCD
(specifically a Midas MCCOG42005A6W) and I'm failing miserably at the
moment.  :-(

I bought the MCCOG42005A6W because it's 3.3 volt and I2C bus so
thought it would be simple.  

I'm fairly certain I have the connections correct etc. but I can't get
the i2cdetect command to 'see' the MCCOG42005A6W.  Presumably until it
can see the device I'm not going to get any further.

However I'm not absolutely sure that the MCCOG42005A6W works in a way
that i2cdetect will understand, I'll try and explain.

The MCCOG42005A6W only brings out the I2C interface from the
underlying SSD1803a, each 'command' to the SSD1803a comprises a
control byte (of which only two bits are significant) and an 8-bit
command (which is a superset of the HD4478OU command set).  Thus the
SSD1803a (and in turn the MCCOG42005A6W) *always* needs 16-bits to be
sent to it before it will respond with anything useful.  Hence any
detection program that tries sending an I2C address followed by an
8-bit 'command' will not get any sort of response, will this confuse
i2cdetect?

I do have a 'scope but not a logic analyser, I can't detect anything
useful happening on the clock or data lines with the 'scope but that
may simply be because it happens for too short a period for me to see
anything.

Can anyone suggest how I can progress this?

-- 
Chris Green
·

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Re: [beagleboard] Problem getting i2c bus to work with SSD1803a based LCD


On 9/2/14, 10:59 AM, c...@isbd.net c...@isbd.net wrote:

I am trying to get my BBB to talk to an SSD1803a based LCD
(specifically a Midas MCCOG42005A6W) and I'm failing miserably at the
moment.  :-(

I bought the MCCOG42005A6W because it's 3.3 volt and I2C bus so
thought it would be simple.

I'm fairly certain I have the connections correct etc. but I can't get
the i2cdetect command to 'see' the MCCOG42005A6W.  Presumably until it
can see the device I'm not going to get any further.

However I'm not absolutely sure that the MCCOG42005A6W works in a way
that i2cdetect will understand, I'll try and explain.

The MCCOG42005A6W only brings out the I2C interface from the
underlying SSD1803a, each 'command' to the SSD1803a comprises a
control byte (of which only two bits are significant) and an 8-bit
command (which is a superset of the HD4478OU command set).  Thus the
SSD1803a (and in turn the MCCOG42005A6W) *always* needs 16-bits to be
sent to it before it will respond with anything useful.  Hence any
detection program that tries sending an I2C address followed by an
8-bit 'command' will not get any sort of response, will this confuse
i2cdetect?

I do have a 'scope but not a logic analyser, I can't detect anything
useful happening on the clock or data lines with the 'scope but that
may simply be because it happens for too short a period for me to see
anything.

Can anyone suggest how I can progress this?
First you should read up on how i2c works. What you are looking for is a
ACK or a NACK which occurs at the end of each byte transmitted. The slave
keeps SDA pulled low to slow down the communications, but after that, it
should go high on the next clock to indicate an ACK. I believe that
i2cdetect is looking for a ACK to confirm that a device exists. The first
byte should be the address and if you don¹t have the correct address, you
won¹t see an ACK. 

Regards,
John

-- 
Chris Green
·

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[beagleboard] Re: custom cape i2c bus

2014-09-02 Thread prakash . parmar77

Hi !!

I'm facing problem with Custom I2C cape. It's I/o Expander using NXP's 
PCF8574T Expander chip. I'm unable to detect it. I tried every thing 
available on web. Can you help me ? please ?

Here is some output.

root@beaglebone:~# uname -a
Linux beaglebone 3.8.13 #1 SMP Wed Sep 4 09:09:32 CEST 2013 armv7l GNU/Linux

root@beaglebone:~# i2cdetect -y -r 0
 0  1  2  3  4  5  6  7  8  9  a  b  c  d  e  f
00:  -- -- -- -- -- -- -- -- -- -- -- -- -- 
10: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 
20: -- -- -- -- UU -- -- -- -- -- -- -- -- -- -- -- 
30: -- -- -- -- 34 -- -- -- -- -- -- -- -- -- -- -- 
40: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 
50: UU -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 
60: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 
70: -- -- -- -- -- -- -- -- 
root@beaglebone:~# i2cdetect -y -r 1
 0  1  2  3  4  5  6  7  8  9  a  b  c  d  e  f
00:  -- -- -- -- -- -- -- -- -- -- -- -- -- 
10: -- -- -- -- -- -- -- -- UU -- -- -- -- -- -- -- 
20: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 
30: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 
40: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 
50: -- -- -- -- UU UU UU UU -- -- -- -- -- -- -- -- 
60: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 
70: -- -- -- -- -- -- -- -- 

root@beaglebone:~# i2cdetect -y -r 2
 0  1  2  3  4  5  6  7  8  9  a  b  c  d  e  f
00:  -- -- -- -- -- -- -- -- -- -- -- -- -- 
10: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 
20: 20 -- 22 -- 24 -- 26 -- -- -- -- -- -- -- -- -- 
30: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 
40: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 
50: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 
60: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 
70: -- -- -- -- -- -- -- -- 

I'm using Beaglebone Black Rev B.

Hope Listen form you soon.
Thanks.

On Thursday, July 17, 2014 9:17:40 PM UTC+5:30, Johan Korten wrote:

 I managed to make my own cape (for two XBee modules). It works very well 
 (even sending between the two modules and to the third one on the 
 computer), but:

 if I use node ./eeprom.js

 I suspect that my cape is expected to be connected to the fourth (or third 
 if you start counting at 0) i2c bus:

 /sys/bus/i2c/drivers/at24/3-0057/eeprom instead of 
 /sys/bus/i2c/drivers/at24/1-0057/eeprom 

 So should I fix that in my cape (my cape is default at 
 /sys/bus/i2c/drivers/at24/1-0057 
 but can be configured to go from /sys/bus/i2c/drivers/at24/1-0054 .. 
 /sys/bus/i2c/drivers/at24/1-0057)

 Apart from that, I managed to program the eeprom and get it working, but 
 since it uses UART 2 and UART 5 I needed to change /boot/uboot/uEnv.txt 
 to get that working (BBB Rev B so that is why I needed to 
 change /boot/uboot/uEnv.txt instead of /media/BEAGLEBONE/uEnv.txt), but do 
 I need to supply that with my final version somewhere or is it enough to 
 put that in the manual?

 Sincerely,
 Johan



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Re: [beagleboard] How to remove Cloud9 - files from BBB

2014-09-02 Thread max

Robert,

Thanks, I found the right package while waiting for my post to be 
moderated. A bit worried that I might not get the 1.4.0 version with the -@ 
switch, as the man pages don't mention it, but the built-in help does. I 
see it came from a beagleboard repository. Looks like like I'm good to go 
now.

Thanks for all your help!

Max

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Re: [beagleboard] Re: custom cape i2c bus

2014-09-02 Thread Gerald Coley

What size pullup resistors are you using on the I2C bus?

Gerald


On Tue, Sep 2, 2014 at 12:29 PM, prakash.parma...@gmail.com wrote:

 Hi !!

 I'm facing problem with Custom I2C cape. It's I/o Expander using NXP's
 PCF8574T Expander chip. I'm unable to detect it. I tried every thing
 available on web. Can you help me ? please ?

 Here is some output.

 root@beaglebone:~# uname -a
 Linux beaglebone 3.8.13 #1 SMP Wed Sep 4 09:09:32 CEST 2013 armv7l
 GNU/Linux

 root@beaglebone:~# i2cdetect -y -r 0
  0  1  2  3  4  5  6  7  8  9  a  b  c  d  e  f
 00:  -- -- -- -- -- -- -- -- -- -- -- -- --
 10: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
 20: -- -- -- -- UU -- -- -- -- -- -- -- -- -- -- --
 30: -- -- -- -- 34 -- -- -- -- -- -- -- -- -- -- --
 40: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
 50: UU -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
 60: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
 70: -- -- -- -- -- -- -- --
 root@beaglebone:~# i2cdetect -y -r 1
  0  1  2  3  4  5  6  7  8  9  a  b  c  d  e  f
 00:  -- -- -- -- -- -- -- -- -- -- -- -- --
 10: -- -- -- -- -- -- -- -- UU -- -- -- -- -- -- --
 20: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
 30: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
 40: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
 50: -- -- -- -- UU UU UU UU -- -- -- -- -- -- -- --
 60: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
 70: -- -- -- -- -- -- -- --

 root@beaglebone:~# i2cdetect -y -r 2
  0  1  2  3  4  5  6  7  8  9  a  b  c  d  e  f
 00:  -- -- -- -- -- -- -- -- -- -- -- -- --
 10: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
 20: 20 -- 22 -- 24 -- 26 -- -- -- -- -- -- -- -- --
 30: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
 40: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
 50: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
 60: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
 70: -- -- -- -- -- -- -- --

 I'm using Beaglebone Black Rev B.

 Hope Listen form you soon.
 Thanks.

 On Thursday, July 17, 2014 9:17:40 PM UTC+5:30, Johan Korten wrote:

 I managed to make my own cape (for two XBee modules). It works very well
 (even sending between the two modules and to the third one on the
 computer), but:

 if I use node ./eeprom.js

 I suspect that my cape is expected to be connected to the fourth (or
 third if you start counting at 0) i2c bus:

 /sys/bus/i2c/drivers/at24/3-0057/eeprom instead of
 /sys/bus/i2c/drivers/at24/1-0057/eeprom

 So should I fix that in my cape (my cape is default at
 /sys/bus/i2c/drivers/at24/1-0057 but can be configured to go from
 /sys/bus/i2c/drivers/at24/1-0054 .. /sys/bus/i2c/drivers/at24/1-0057)

 Apart from that, I managed to program the eeprom and get it working, but
 since it uses UART 2 and UART 5 I needed to change /boot/uboot/uEnv.txt
 to get that working (BBB Rev B so that is why I needed to
 change /boot/uboot/uEnv.txt instead of /media/BEAGLEBONE/uEnv.txt), but
 do I need to supply that with my final version somewhere or is it enough to
 put that in the manual?

 Sincerely,
 Johan

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[beagleboard] Beaglebone Black Rebooting Several Times Every Day

2014-09-02 Thread Michaël Vaes

Hi Greg - 

Are you booting from your SD Card or have it inserted?

Michaël

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Re: [beagleboard] Beaglebone Black Rebooting Several Times Every Day

2014-09-02 Thread David Lambert

If you have a serial interface, I suggest turn on logging and post the 
results here.

On 09/02/2014 06:44 AM, Greg Kelley wrote:
Got my first BBB last week, installed latest Debian. USB Hot Plug was 
completely hosed in Kernel 3.8 so I upgraded to 3.16 (latest non-rc 
version). Currently running CUPS print services (including Airprint) 
and weewx. It appears that the BBB is rebooting three or four times 
between 10pm and 1am, this has happened the last two days. I 
discovered it because weewx was going into an ftp loop because the 
system clock time was getting whacked (it is time/date sensitive to 
process weather data). Nothing in the log files unusual. Powered with 
a 5v 2a supply. Ethernet cable attached and external USB Hub (has 
external power but not used) with printer (turned off) and Weather 
Data Logger attached (has it's own power).


Before I start experimenting with removing USB Hub, plugging in just 
Weather Data Logger, etc. thought I'd check here first.



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Re: [beagleboard] How to enable SPI devices on 3.14 kernel?

2014-09-02 Thread Jason Lange

Hello Robert,

I had done just as you've described, but the system I started with had
uboot and company installed in /boot/uboot rather than /boot and your 'make
install' in ../dtb-rebuilder.git didn't seem to be touching /boot/uboot. I
guessed that that was why I wasn't seeing the changes I was hoping for (
that is: /dev/spidev2.[0/1] ) so i tried completing the install for my
setup by moving files into /boot/uboot/dtbs and bricked my board.

This morning I began with:

https://rcn-ee.net/deb/testing/2014-08-19/lxde/BBB-eMMC-flasher-debian-7.6-lxde-armhf-2014-08-19-2gb.img.xz

flashed my bone...

did:

apt-get install linux-image-3.14.17-ti-r16

then:

git clone -b 3.14-ti https://github.com/RobertCNelson/dtb-rebuilder.git

then changed ../dtb-rebuilder.git/src/arm/am335x-boneblack.dts following
your guidelines below:


 2nd thought, the uart conflicts..
 so disable:

 #include am335x-bone-basic-proto-cape.dtsi
 -
 /* #include am335x-bone-basic-proto-cape.dtsi */

 Then add spi0:
 #include am335x-bone-spi0-spidev.dtsi

 Then spi1:
 #include am335x-bone-spi1-spidev.dtsi
 or
 #include am335x-bone-spi1a-spidev.dtsi

 then make/sudo make install/sudo reboot


The system this gives me has everything in /boot and nothing in /boot/uboot
and 'make install' does what it is supposed to, and sure enough after
reboot:

ls /dev/spidev*

gives me:

/dev/spidev1.0  /dev/spidev1.1  /dev/spidev2.0  /dev/spidev2.1


Thanks for the time and the tools.

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Re: [beagleboard] How to enable SPI devices on 3.14 kernel?

Jason,

/boot/uboot should have been nothing more than a mount point for
/dev/mmcblk0p1. Which is the fat16 formatted partition that u-boot.img,
MLO, and uEnv.txt reside.

/boot/uEnv.txt should be nothing more than . ..

*root@arm:~# cat /boot/uEnv.txt*
*uname_r=3.8.13-bone64.1*
*cmdline=quiet init=/lib/systemd/systemd*
*cape_disable=capemgr.disable_partno=BB-BONELT-HDMI,BB-BONELT-HDMIN*

Or something similar.




On Tue, Sep 2, 2014 at 3:33 PM, Jason Lange j.b.la...@gmail.com wrote:

 Hello Robert,

 I had done just as you've described, but the system I started with had
 uboot and company installed in /boot/uboot rather than /boot and your 'make
 install' in ../dtb-rebuilder.git didn't seem to be touching /boot/uboot. I
 guessed that that was why I wasn't seeing the changes I was hoping for (
 that is: /dev/spidev2.[0/1] ) so i tried completing the install for my
 setup by moving files into /boot/uboot/dtbs and bricked my board.

 This morning I began with:


 https://rcn-ee.net/deb/testing/2014-08-19/lxde/BBB-eMMC-flasher-debian-7.6-lxde-armhf-2014-08-19-2gb.img.xz

 flashed my bone...

 did:

 apt-get install linux-image-3.14.17-ti-r16

 then:


 git clone -b 3.14-ti https://github.com/RobertCNelson/dtb-rebuilder.git

 then changed ../dtb-rebuilder.git/src/arm/am335x-boneblack.dts following
 your guidelines below:


 2nd thought, the uart conflicts..
 so disable:

 #include am335x-bone-basic-proto-cape.dtsi
 -
 /* #include am335x-bone-basic-proto-cape.dtsi */

 Then add spi0:
 #include am335x-bone-spi0-spidev.dtsi

 Then spi1:
 #include am335x-bone-spi1-spidev.dtsi
 or
 #include am335x-bone-spi1a-spidev.dtsi

 then make/sudo make install/sudo reboot


 The system this gives me has everything in /boot and nothing in
 /boot/uboot and 'make install' does what it is supposed to, and sure enough
 after reboot:

 ls /dev/spidev*

 gives me:

 /dev/spidev1.0  /dev/spidev1.1  /dev/spidev2.0  /dev/spidev2.1


 Thanks for the time and the tools.

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Re: [beagleboard] How to enable SPI devices on 3.14 kernel?

On Tue, Sep 2, 2014 at 6:15 PM, William Hermans yyrk...@gmail.com wrote:
 Jason,

 /boot/uboot should have been nothing more than a mount point for
 /dev/mmcblk0p1. Which is the fat16 formatted partition that u-boot.img, MLO,
 and uEnv.txt reside.

How would you guys feel about nuking that fat16 boot partition. ;)

Regards,

-- 
Robert Nelson
http://www.rcn-ee.com/

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Re: [beagleboard] How to enable SPI devices on 3.14 kernel?


 *How would you guys feel about nuking that fat16 boot partition. ;)*


Quite honestly Robert. It's been around since I first got my A5A last year,
so I'm used to it. But I suppose having one partition formatted as ext2/3/4
would be more convenient


On Tue, Sep 2, 2014 at 4:40 PM, Robert Nelson robertcnel...@gmail.com
wrote:

 On Tue, Sep 2, 2014 at 6:15 PM, William Hermans yyrk...@gmail.com wrote:
  Jason,
 
  /boot/uboot should have been nothing more than a mount point for
  /dev/mmcblk0p1. Which is the fat16 formatted partition that u-boot.img,
 MLO,
  and uEnv.txt reside.

 How would you guys feel about nuking that fat16 boot partition. ;)

 Regards,

 --
 Robert Nelson
 http://www.rcn-ee.com/

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Re: [beagleboard] How to enable SPI devices on 3.14 kernel?

On Tue, Sep 2, 2014 at 5:33 PM, Jason Lange j.b.la...@gmail.com wrote:
 Hello Robert,

 I had done just as you've described, but the system I started with had uboot
 and company installed in /boot/uboot rather than /boot and your 'make
 install' in ../dtb-rebuilder.git didn't seem to be touching /boot/uboot. I
 guessed that that was why I wasn't seeing the changes I was hoping for (
 that is: /dev/spidev2.[0/1] ) so i tried completing the install for my setup
 by moving files into /boot/uboot/dtbs and bricked my board.

Sorry about that, i need to add backwards compatibility to that script.

I promise i only have one more earth shaking change coming down the pipe.

Regards,

-- 
Robert Nelson
http://www.rcn-ee.com/

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Re: [beagleboard] How to enable SPI devices on 3.14 kernel?

On Tue, Sep 2, 2014 at 6:45 PM, William Hermans yyrk...@gmail.com wrote:
 How would you guys feel about nuking that fat16 boot partition. ;)


 Quite honestly Robert. It's been around since I first got my A5A last year,
 so I'm used to it. But I suppose having one partition formatted as ext2/3/4
 would be more convenient

done ;)

dd if=MLO of=/dev/sdX count=1 seek=1 conv=notrunc bs=128k
dd if=u-boot.img of=/dev/sdX count=2 seek=1 conv=notrunc bs=384k

only works on omap4+ bootrom's (so the old omap34xx/omap36xx family is out)

I'm close to rolling out a new testing image that uses this feature..
The flasher gets more interesting as i need to remember to include the
MLO/u-boot.img somewhere in the ext4 partition for later flashing..

Regards,

-- 
Robert Nelson
http://www.rcn-ee.com/

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Re: [beagleboard] How to enable SPI devices on 3.14 kernel?


 *done ;)*

 * dd if=MLO of=/dev/sdX count=1 seek=1 conv=notrunc bs=128k*
 * dd if=u-boot.img of=/dev/sdX count=2 seek=1 conv=notrunc bs=384k*

 * only works on omap4+ bootrom's (so the old omap34xx/omap36xx family is
 out)*

 * I'm close to rolling out a new testing image that uses this feature..*
 * The flasher gets more interesting as i need to remember to include the*
 * MLO/u-boot.img somewhere in the ext4 partition for later flashing..*


Wait a minute, is this creating two partitions that are raw contents of
each file ? Not sure what this is doing actually seems more like you're
dumping the raw content of each file onto the same partition. But I've
actually never seen dd used this way.


On Tue, Sep 2, 2014 at 4:47 PM, Robert Nelson robertcnel...@gmail.com
wrote:

 On Tue, Sep 2, 2014 at 6:45 PM, William Hermans yyrk...@gmail.com wrote:
  How would you guys feel about nuking that fat16 boot partition. ;)
 
 
  Quite honestly Robert. It's been around since I first got my A5A last
 year,
  so I'm used to it. But I suppose having one partition formatted as
 ext2/3/4
  would be more convenient

 done ;)

 dd if=MLO of=/dev/sdX count=1 seek=1 conv=notrunc bs=128k
 dd if=u-boot.img of=/dev/sdX count=2 seek=1 conv=notrunc bs=384k

 only works on omap4+ bootrom's (so the old omap34xx/omap36xx family is out)

 I'm close to rolling out a new testing image that uses this feature..
 The flasher gets more interesting as i need to remember to include the
 MLO/u-boot.img somewhere in the ext4 partition for later flashing..

 Regards,

 --
 Robert Nelson
 http://www.rcn-ee.com/

 --
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Re: [beagleboard] How to enable SPI devices on 3.14 kernel?

OK, so I think I got that figured out. Was not familiar with seek, but am
now. So what about uEnv.txt ?


On Tue, Sep 2, 2014 at 4:52 PM, William Hermans yyrk...@gmail.com wrote:

 *done ;)*

 * dd if=MLO of=/dev/sdX count=1 seek=1 conv=notrunc bs=128k*
 * dd if=u-boot.img of=/dev/sdX count=2 seek=1 conv=notrunc bs=384k*

 * only works on omap4+ bootrom's (so the old omap34xx/omap36xx family is
 out)*

 * I'm close to rolling out a new testing image that uses this feature..*
 * The flasher gets more interesting as i need to remember to include the*
 * MLO/u-boot.img somewhere in the ext4 partition for later flashing..*


 Wait a minute, is this creating two partitions that are raw contents of
 each file ? Not sure what this is doing actually seems more like you're
 dumping the raw content of each file onto the same partition. But I've
 actually never seen dd used this way.


 On Tue, Sep 2, 2014 at 4:47 PM, Robert Nelson robertcnel...@gmail.com
 wrote:

 On Tue, Sep 2, 2014 at 6:45 PM, William Hermans yyrk...@gmail.com
 wrote:
  How would you guys feel about nuking that fat16 boot partition. ;)
 
 
  Quite honestly Robert. It's been around since I first got my A5A last
 year,
  so I'm used to it. But I suppose having one partition formatted as
 ext2/3/4
  would be more convenient

 done ;)

 dd if=MLO of=/dev/sdX count=1 seek=1 conv=notrunc bs=128k
 dd if=u-boot.img of=/dev/sdX count=2 seek=1 conv=notrunc bs=384k

 only works on omap4+ bootrom's (so the old omap34xx/omap36xx family is
 out)

 I'm close to rolling out a new testing image that uses this feature..
 The flasher gets more interesting as i need to remember to include the
 MLO/u-boot.img somewhere in the ext4 partition for later flashing..

 Regards,

 --
 Robert Nelson
 http://www.rcn-ee.com/

 --
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Re: [beagleboard] How to enable SPI devices on 3.14 kernel?

On Tue, Sep 2, 2014 at 6:57 PM, William Hermans yyrk...@gmail.com wrote:

 OK, so I think I got that figured out. Was not familiar with seek, but
 am now. So what about uEnv.txt ?


/boot/uEnv.txt can be in any partition ( /dev/mmcblkXp1 - /dev/mmcblkXp7* )

7: is the usual max enabled by default for most normal mmc host controllers
in linux.

Regards,

-- 
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http://www.rcn-ee.com/

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Re: [beagleboard] How to enable SPI devices on 3.14 kernel?


 */boot/uEnv.txt can be in any partition ( /dev/mmcblkXp1 -
 /dev/mmcblkXp7* )*

 *7: is the usual max enabled by default for most normal mmc host
 controllers in linux.*

 *Regards,*

Right, I get that, but in the case of NFS rootfs, how is uboot supposed to
know to look over an NFS share ?

Right now, we have the main uEnv.txt file that resides where uboot.img, and
MLO reside. This points to yet another( optional ? ) uEnv.txt for loading
possibly common setenv variables. Will this just be hard coded to search
/boot, no matter it's location ?



On Tue, Sep 2, 2014 at 5:25 PM, Robert Nelson robertcnel...@gmail.com
wrote:




 On Tue, Sep 2, 2014 at 6:57 PM, William Hermans yyrk...@gmail.com wrote:

 OK, so I think I got that figured out. Was not familiar with seek, but
 am now. So what about uEnv.txt ?


 /boot/uEnv.txt can be in any partition ( /dev/mmcblkXp1 - /dev/mmcblkXp7*
 )

 7: is the usual max enabled by default for most normal mmc host
 controllers in linux.

 Regards,

 --
 Robert Nelson
 http://www.rcn-ee.com/

 --
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Re: [beagleboard] How to enable SPI devices on 3.14 kernel?

Oh, and nearly forgot for the fifth time heh. What about g_multi file
share ? The one that gets auto mounted on Windows machines. I do not use
this myself, but I'm sure there are people out there who do use it.


On Tue, Sep 2, 2014 at 6:22 PM, William Hermans yyrk...@gmail.com wrote:

 */boot/uEnv.txt can be in any partition ( /dev/mmcblkXp1 -
 /dev/mmcblkXp7* )*

 *7: is the usual max enabled by default for most normal mmc host
 controllers in linux.*

 *Regards,*

 Right, I get that, but in the case of NFS rootfs, how is uboot supposed to
 know to look over an NFS share ?

 Right now, we have the main uEnv.txt file that resides where uboot.img,
 and MLO reside. This points to yet another( optional ? ) uEnv.txt for
 loading possibly common setenv variables. Will this just be hard coded to
 search /boot, no matter it's location ?



 On Tue, Sep 2, 2014 at 5:25 PM, Robert Nelson robertcnel...@gmail.com
 wrote:




 On Tue, Sep 2, 2014 at 6:57 PM, William Hermans yyrk...@gmail.com
 wrote:

 OK, so I think I got that figured out. Was not familiar with seek, but
 am now. So what about uEnv.txt ?


 /boot/uEnv.txt can be in any partition ( /dev/mmcblkXp1 -
 /dev/mmcblkXp7* )

 7: is the usual max enabled by default for most normal mmc host
 controllers in linux.

 Regards,

 --
 Robert Nelson
 http://www.rcn-ee.com/

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[beagleboard] Yet another newbie how to get started

2014-09-02 Thread murrellr

I received a Beaglebone Black to develop a homework project on.  I plugged 
in the board to my USB and installed the Windows driver.  I next wanted to 
develop a simple Hello world C project and debug it on this board.  I 
didn't want to be a Newbie so I researched how to develop programs for this 
device.  So I read.  And read.  And read more.  I read all I could find on 
the Beaglebone site.  I read the TI websites.  I read from Linux sites.  I 
read from several individual sites.  I found many This is how I did it 
that had many steps and comments on how to set up a development 
environment.  But I could not find concrete, concise steps on how to write 
and debug a simple program.  As far as I could glean from the various 
sites, this is what I need to do:

1.  Load Putty on my PC.
2.  Establish a SSH terminal session to the board.
3.  Write my program using VIM (a horrible program to drop on a novice, it 
has a very steep learning curve) or nano (not much better).
4.  Compile and link my program with gcc, after having to learn its 
command-line interface.
5.  Run my program under the gnu debugger, another command-line tool with a 
steep learning curve.

It will take days or weeks to learn the tools to develop a 10 minute 
program.  This is how I debugged in the 1980's.  There has got to be a 
better environment than this.  I currently develop under QNX Momentics and 
TI Code Composer.  They are both Eclipse based.  Code Composer requires a 
JTAG module, but QNX uses the GNU Cross Compiler and GNU Debug for program 
development.  Editing and compiling is done on the PC, and for debugging, 
it copies my executable to the target system and runs it under the debugger 
using the UI for setting breakpoints, single-stepping viewing registers and 
variable, etc.

So, now my question.  Is there a easy to use, Windows, graphical integrated 
development environment for developing native Angstrom Linux programs for 
this board?


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Re: [beagleboard] How to enable SPI devices on 3.14 kernel?

On Tue, Sep 2, 2014 at 8:22 PM, William Hermans yyrk...@gmail.com wrote:
 /boot/uEnv.txt can be in any partition ( /dev/mmcblkXp1 - /dev/mmcblkXp7*
 )

 7: is the usual max enabled by default for most normal mmc host
 controllers in linux.

 Regards,

 Right, I get that, but in the case of NFS rootfs, how is uboot supposed to
 know to look over an NFS share ?

 Right now, we have the main uEnv.txt file that resides where uboot.img, and
 MLO reside. This points to yet another( optional ? ) uEnv.txt for loading
 possibly common setenv variables. Will this just be hard coded to search
 /boot, no matter it's location ?

So as of right now, it'll search for these files in this order:

(microSD)

Partition: 1 (fat/extX)
/uEnv.txt
/boot.scr
/boot/boot.scr

Then it'll loop thru partition's: 1 - 7:
/boot/uEnv.txt

(eMMC)

Partition: 1 (fat/extX)
/uEnv.txt
/boot.scr
/boot/boot.scr

Then it'll loop thru partition's: 1 - 7:
/boot/uEnv.txt

I've left the logic for the first partition for compatibility sake.

Regards,

-- 
Robert Nelson
http://www.rcn-ee.com/

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Re: [beagleboard] How to enable SPI devices on 3.14 kernel?

On Tue, Sep 2, 2014 at 8:23 PM, William Hermans yyrk...@gmail.com wrote:
 Oh, and nearly forgot for the fifth time heh. What about g_multi file
 share ? The one that gets auto mounted on Windows machines. I do not use
 this myself, but I'm sure there are people out there who do use it.

That's why we've been moving every critical file out of that partition.

For the official lxde image, the fat partition will still be there,
but NO critical boot files will exist in. (a windows user can add a
'uEnv.txt/boot.scr/boot/boot.scr' and it will change the boot..

In theory, windows users should be able to re-format the drive too,
when it's shown in windows over the usb-gadget connection.

Regards,

-- 
Robert Nelson
http://www.rcn-ee.com/

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Re: [beagleboard] How to enable SPI devices on 3.14 kernel?


 *That's why we've been moving every critical file out of that partition.*

 * For the official lxde image, the fat partition will still be there,*
 * but NO critical boot files will exist in. (a windows user can add a*
 * 'uEnv.txt/boot.scr/boot/boot.*

*scr' and it will change the boot..*

* In theory, windows users should be able to re-format the drive too,*
* when it's shown in windows over the usb-gadget connection.*


It is kind of sad that this is even necessary. In the context that the BBB
is a dev board, and as such *some* knowledge / common sense should be
implied.


On Tue, Sep 2, 2014 at 6:45 PM, Robert Nelson robertcnel...@gmail.com
wrote:

 On Tue, Sep 2, 2014 at 8:23 PM, William Hermans yyrk...@gmail.com wrote:
  Oh, and nearly forgot for the fifth time heh. What about g_multi file
  share ? The one that gets auto mounted on Windows machines. I do not
 use
  this myself, but I'm sure there are people out there who do use it.

 That's why we've been moving every critical file out of that partition.

 For the official lxde image, the fat partition will still be there,
 but NO critical boot files will exist in. (a windows user can add a
 'uEnv.txt/boot.scr/boot/boot.scr' and it will change the boot..

 In theory, windows users should be able to re-format the drive too,
 when it's shown in windows over the usb-gadget connection.

 Regards,

 --
 Robert Nelson
 http://www.rcn-ee.com/

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Re: [beagleboard] How to enable SPI devices on 3.14 kernel?

On Tue, Sep 2, 2014 at 8:58 PM, William Hermans yyrk...@gmail.com wrote:

 *That's why we've been moving every critical file out of that partition.*

 * For the official lxde image, the fat partition will still be there,*
 * but NO critical boot files will exist in. (a windows user can add a*
 * 'uEnv.txt/boot.scr/boot/boot.*

 *scr' and it will change the boot..*

 * In theory, windows users should be able to re-format the drive too,*
 * when it's shown in windows over the usb-gadget connection.*


 It is kind of sad that this is even necessary. In the context that the BBB
 is a dev board, and as such *some* knowledge / common sense should be
 implied.


It keeps things interesting. ;)  It Feels like bullet proofing the perfect
mouse trap!

Regards,

-- 
Robert Nelson
http://www.rcn-ee.com/

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Re: [beagleboard] Yet another newbie how to get started


 *It will take days or weeks to learn the tools to develop a 10 minute
 program.  This is how I debugged in the 1980's.  There has got to be a
 better environment than this.*


This is not the fault of the hardware or the designers of the hardware.
This is your fault for not knowing the tools. Harsh as it may seem, this is
a fact. This is why professional software engineers with the skills to
setup / use said tools get paid big money.

*I currently develop under QNX Momentics and TI Code Composer.  They are
both Eclipse based.  Code Composer requires a JTAG module, but QNX uses the
GNU Cross Compiler and GNU Debug for program development.  Editing and
compiling is done on the PC, and for debugging, it copies my executable to
the target system and runs it under the debugger using the UI for setting
breakpoints, single-stepping viewing registers and variable, etc.*

This is possible for this hardware as well. All aspects.

*So, now my question.  Is there a easy to use, Windows, graphical
 integrated development environment for developing native Angstrom Linux
 programs for this board?*


There are many ways to set this up, and you will most certainly have to set
it up yourself. There is no easy to download /install application that will
do this for you.

Do also note that on the BBB Angstrom for the most part is depreciated. I
would recommend moving to Debian, and various images exist( listed on
beagleboard.org ).



On Tue, Sep 2, 2014 at 6:40 PM, murre...@ameritech.net wrote:

 I received a Beaglebone Black to develop a homework project on.  I plugged
 in the board to my USB and installed the Windows driver.  I next wanted to
 develop a simple Hello world C project and debug it on this board.  I
 didn't want to be a Newbie so I researched how to develop programs for this
 device.  So I read.  And read.  And read more.  I read all I could find on
 the Beaglebone site.  I read the TI websites.  I read from Linux sites.  I
 read from several individual sites.  I found many This is how I did it
 that had many steps and comments on how to set up a development
 environment.  But I could not find concrete, concise steps on how to write
 and debug a simple program.  As far as I could glean from the various
 sites, this is what I need to do:

 1.  Load Putty on my PC.
 2.  Establish a SSH terminal session to the board.
 3.  Write my program using VIM (a horrible program to drop on a novice, it
 has a very steep learning curve) or nano (not much better).
 4.  Compile and link my program with gcc, after having to learn its
 command-line interface.
 5.  Run my program under the gnu debugger, another command-line tool with
 a steep learning curve.

 It will take days or weeks to learn the tools to develop a 10 minute
 program.  This is how I debugged in the 1980's.  There has got to be a
 better environment than this.  I currently develop under QNX Momentics and
 TI Code Composer.  They are both Eclipse based.  Code Composer requires a
 JTAG module, but QNX uses the GNU Cross Compiler and GNU Debug for program
 development.  Editing and compiling is done on the PC, and for debugging,
 it copies my executable to the target system and runs it under the debugger
 using the UI for setting breakpoints, single-stepping viewing registers and
 variable, etc.

 So, now my question.  Is there a easy to use, Windows, graphical
 integrated development environment for developing native Angstrom Linux
 programs for this board?


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Re: [beagleboard] USB OTG Host mode with BBB?

2014-09-02 Thread Ian Collins

Has anyone made any progress with this?

I'm in the same boat trying to get this work and realise we will have to
add some hardware to provide the correctly timed 5V. It looks like the
biggest problem is the DRVVBUS pin for USB0 isn't tracked.

Thanks.

Ian.

On Wednesday, 12 February 2014 22:42:58 UTC+13, AndrewTaneGlen wrote:

This guy seems to have had some success, with some minor hardware
modifications:

http://pansenti.wordpress.com/2013/05/27/beaglebone-black-with-two-usb-host-ports-it-can-be-done-but-its-not-easy/

Andrew.

On 12 February 2014 20:18, Mahammad cai...@gmail.com javascript:
wrote:

Hi There

I am too trying to make the mini usb port to work as a host.

I am trying to scan the expansion port signals it seams like none of the
pins offers direct access to the processor vbus signal. Should I do this
with some software?

If with software; what time should it work to enable/disable the volt?
And should it listen to the signal all the time or just during the port
initialization stage?

Best Regards

Mahammad

On Wednesday, August 21, 2013 4:38:47 AM UTC+2, AndrewTaneGlen wrote:

Understood. Thanks for taking the time to clear that up for me.

Andy.

On Wednesday, 21 August 2013 14:36:59 UTC+12, Gerald wrote:

Yes, that is what I am saying. I did a design where the 5V was always
there. It din't work. I had to add a power switch like I did on the BBB
design.

Gerald

On Tue, Aug 20, 2013 at 9:33 PM, AndrewTaneGlen andrewt...@gmail.com
wrote:

Thanks Gerald,

That was one thing I was not absolutely clear on. The TRM has the
following passage concerning USB power control:

*When any of the USB controllers assumes the role of a host, the USB
is required to supply a 5V power*
*source to an attached device through its VBUS line. In order to
achieve this task, the USB controller*
*requires the use of an external power logic (or charge pump) capable
of sourcing 5V power. A*
*USB_DRVVBUS is used as a control signal to enable/disable this
external power logic to either source or*
*disable power on the VBUS line. The control on the USB_DRVVBUS is
automatic and is handled by the*
*USB controller.* (AM335X TRM, pg. 1697)

So are you saying, in addition to the above, that the USB port must be
in control of the VBUS enable - assumedly detecting the voltage as off
when
disabled, and on when enabled, with specific timing requirements around
these edges - so that there is no way to simply have the 5V there the
whole
time?

If this is the case I guess there is a chance that I could add some
kind of gpio control through the expansion header to enable/disable the
5V
rail as and when required (or I could just modify the board - but I'm
trying to avoid this and be able to just plug my clean BBB into my
horrible
looking base board...)

Regards,
Andy.

On Wednesday, 21 August 2013 14:20:08 UTC+12, Gerald wrote:

Like the fact that the processor needs to see the 5V on
the processor pin when it turns on the 5V?

Take a look at the host port design. Both ports are actually OTG
ports by design. To make the state machine in the HW function as a host,
you need to make it work like the other OTG port, the one we call the
Host
port, which is configured for host..

Gerald

On Tue, Aug 20, 2013 at 9:12 PM, AndrewTaneGlen andrewt...@gmail.com
wrote:

Hi All,

I've been playing around with getting the mini-USB pc connector to
function as a second USB host (I'm using RCN's Ubuntu, Raring, but I'd
assume this would apply to Angstrom as well). There is a post here
http://pansenti.wordpress.com/2013/05/27/beaglebone-
black-with-two-usb-host-ports-it-can-be-done-but-its-not-easy/
decribing
how to do this with some hardware modifications, but looking at the
AM335x
technical reference manual it looks like I should be able to set USB
Port 0
to function as a host through software alone (i.e. without needing to
ground the USB ID pin, or to modify anything else on the board).

So what I have done so far is modify the 'am33xx.dtsi' file under
the 'usb_otg_hs' section, and change the item 'port0-mode = 3' to
'port0-mode = 1', which, according to 'am33xx-usb.txt' in the device
tree
documentation, should force this port to function in Host mode.

I then had a look through menu config, in the 'Device Drivers' -
'USB Support' section and there didn't seem to be anything specifically
relating to setting the mode of any particular usb port, so I left all
of
this unchanged.

Upon booting I can see that whereas previously I would get the
following wit regards to USB0:

musb-hdrc musb-hdrc.0.auto: *** mode=3

I now get

musb-hdrc musb-hdrc.0.auto: *** mode=1

This would appear to indicate that my device tree change had been
successfully applied, and the initialisation of USB port0 now looks
identical to that of port1. whereas previously they were quite
different.

I then

[beagleboard] Re: Yet another newbie how to get started

2014-09-02 Thread Joshua Datko



murrellr-ywtbtysyrb+lz21kgmr...@public.gmane.org writes:


 1.  Load Putty on my PC.
 2.  Establish a SSH terminal session to the board.
 3.  Write my program using VIM (a horrible program to drop on a
 novice, it has a very steep learning curve) or nano (not much
 better).
 4.  Compile and link my program with gcc, after having to learn its
 command-line interface.
 5.  Run my program under the gnu debugger, another command-line tool
 with a steep learning curve.

I use Emacs. It's much better than vim. (/me ducks and runs after
trolling a holy war... :p )


 So, now my question.  Is there a easy to use, Windows, graphical
 integrated development environment for developing native Angstrom
 Linux programs for this board?


I don't use Eclipse, but those that do AND work on the BeagleBone say
that Derek Molloy has a good tutorial on setting up a GUI IDE:

http://derekmolloy.ie/beaglebone/setting-up-eclipse-on-the-beaglebone-for-c-development/


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Re: [beagleboard] Re: Yet another newbie how to get started

That blog / Video is meant for the beaglebone white. There will be enough
differences with those instructions for the uninitiated to get in way over
their head.

e.g. it will lead into another circle of frustration.


On Tue, Sep 2, 2014 at 7:39 PM, Joshua Datko jbda...@gmail.com wrote:



 murrellr-ywtbtysyrb+lz21kgmr...@public.gmane.org writes:

 
  1.  Load Putty on my PC.
  2.  Establish a SSH terminal session to the board.
  3.  Write my program using VIM (a horrible program to drop on a
  novice, it has a very steep learning curve) or nano (not much
  better).
  4.  Compile and link my program with gcc, after having to learn its
  command-line interface.
  5.  Run my program under the gnu debugger, another command-line tool
  with a steep learning curve.

 I use Emacs. It's much better than vim. (/me ducks and runs after
 trolling a holy war... :p )


  So, now my question.  Is there a easy to use, Windows, graphical
  integrated development environment for developing native Angstrom
  Linux programs for this board?
 

 I don't use Eclipse, but those that do AND work on the BeagleBone say
 that Derek Molloy has a good tutorial on setting up a GUI IDE:


 http://derekmolloy.ie/beaglebone/setting-up-eclipse-on-the-beaglebone-for-c-development/


 --
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RE: [beagleboard] Yet another newbie how to get started

2014-09-02 Thread William Pretty Security

Hi William;

 

Look for a couple of Derek Molloy’s videos. He has an excellent one about using 
Eclipse to cross compile.

If you are familiar with Eclipse, it should be a piece of cake J

 

Bill

 

 

No one could make a greater mistake than he who did nothing because he could 
do only a little.

All that is necessary for the triumph of evil is that good men do nothing 
Edmond Burke (1729 - 1797)

http://www.packtpub.com/building-a-home-security-system-with-beaglebone/book

 

From: beagleboard@googlegroups.com [mailto:beagleboard@googlegroups.com] On 
Behalf Of William Hermans
Sent: Tuesday, September 02, 2014 10:13 PM
To: beagleboard@googlegroups.com
Subject: Re: [beagleboard] Yet another newbie how to get started

 

It will take days or weeks to learn the tools to develop a 10 minute program.  
This is how I debugged in the 1980's.  There has got to be a better environment 
than this.

 

This is not the fault of the hardware or the designers of the hardware. This is 
your fault for not knowing the tools. Harsh as it may seem, this is a fact. 
This is why professional software engineers with the skills to setup / use said 
tools get paid big money.

I currently develop under QNX Momentics and TI Code Composer.  They are both 
Eclipse based.  Code Composer requires a JTAG module, but QNX uses the GNU 
Cross Compiler and GNU Debug for program development.  Editing and compiling is 
done on the PC, and for debugging, it copies my executable to the target system 
and runs it under the debugger using the UI for setting breakpoints, 
single-stepping viewing registers and variable, etc.

This is possible for this hardware as well. All aspects.

So, now my question.  Is there a easy to use, Windows, graphical integrated 
development environment for developing native Angstrom Linux programs for this 
board?

 

There are many ways to set this up, and you will most certainly have to set it 
up yourself. There is no easy to download /install application that will do 
this for you.

Do also note that on the BBB Angstrom for the most part is depreciated. I would 
recommend moving to Debian, and various images exist( listed on beagleboard.org 
).

 

 

On Tue, Sep 2, 2014 at 6:40 PM, murre...@ameritech.net wrote:

I received a Beaglebone Black to develop a homework project on.  I plugged in 
the board to my USB and installed the Windows driver.  I next wanted to develop 
a simple Hello world C project and debug it on this board.  I didn't want to 
be a Newbie so I researched how to develop programs for this device.  So I 
read.  And read.  And read more.  I read all I could find on the Beaglebone 
site.  I read the TI websites.  I read from Linux sites.  I read from several 
individual sites.  I found many This is how I did it that had many steps and 
comments on how to set up a development environment.  But I could not find 
concrete, concise steps on how to write and debug a simple program.  As far as 
I could glean from the various sites, this is what I need to do:

1.  Load Putty on my PC.
2.  Establish a SSH terminal session to the board.
3.  Write my program using VIM (a horrible program to drop on a novice, it has 
a very steep learning curve) or nano (not much better).
4.  Compile and link my program with gcc, after having to learn its 
command-line interface.
5.  Run my program under the gnu debugger, another command-line tool with a 
steep learning curve.

It will take days or weeks to learn the tools to develop a 10 minute program.  
This is how I debugged in the 1980's.  There has got to be a better environment 
than this.  I currently develop under QNX Momentics and TI Code Composer.  They 
are both Eclipse based.  Code Composer requires a JTAG module, but QNX uses the 
GNU Cross Compiler and GNU Debug for program development.  Editing and 
compiling is done on the PC, and for debugging, it copies my executable to the 
target system and runs it under the debugger using the UI for setting 
breakpoints, single-stepping viewing registers and variable, etc.

So, now my question.  Is there a easy to use, Windows, graphical integrated 
development environment for developing native Angstrom Linux programs for this 
board?



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No virus found in this message.
Checked by AVG - www.avg.com
Version: 2014.0.4745 / Virus Database:

RE: [beagleboard] Re: Yet another newbie how to get started

2014-09-02 Thread William Pretty Security

Worked ok for me J

 

Some of the software he installs manually is now included in the Eclipse 
package manager.

I haven’t tried the remote debugger yet, because I just downloaded it …….

 

No one could make a greater mistake than he who did nothing because he could 
do only a little.

All that is necessary for the triumph of evil is that good men do nothing 
Edmond Burke (1729 - 1797)

http://www.packtpub.com/building-a-home-security-system-with-beaglebone/book

 

From: beagleboard@googlegroups.com [mailto:beagleboard@googlegroups.com] On 
Behalf Of William Hermans
Sent: Tuesday, September 02, 2014 10:45 PM
To: beagleboard@googlegroups.com
Subject: Re: [beagleboard] Re: Yet another newbie how to get started

 

That blog / Video is meant for the beaglebone white. There will be enough 
differences with those instructions for the uninitiated to get in way over 
their head.

e.g. it will lead into another circle of frustration. 

 

On Tue, Sep 2, 2014 at 7:39 PM, Joshua Datko jbda...@gmail.com wrote:



murrellr-ywtbtysyrb+lz21kgmr...@public.gmane.org 
mailto:murrellr-ywtbtysyrb%2blz21kgmr...@public.gmane.org  writes:


 1.  Load Putty on my PC.
 2.  Establish a SSH terminal session to the board.
 3.  Write my program using VIM (a horrible program to drop on a
 novice, it has a very steep learning curve) or nano (not much
 better).
 4.  Compile and link my program with gcc, after having to learn its
 command-line interface.
 5.  Run my program under the gnu debugger, another command-line tool
 with a steep learning curve.

I use Emacs. It's much better than vim. (/me ducks and runs after
trolling a holy war... :p )



 So, now my question.  Is there a easy to use, Windows, graphical
 integrated development environment for developing native Angstrom
 Linux programs for this board?


I don't use Eclipse, but those that do AND work on the BeagleBone say
that Derek Molloy has a good tutorial on setting up a GUI IDE:

http://derekmolloy.ie/beaglebone/setting-up-eclipse-on-the-beaglebone-for-c-development/



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No virus found in this message.
Checked by AVG - www.avg.com
Version: 2014.0.4745 / Virus Database: 4015/8145 - Release Date: 09/02/14

  _  

No virus found in this message.
Checked by AVG - www.avg.com
Version: 2014.0.4745 / Virus Database: 4007/8033 - Release Date: 08/14/14
Internal Virus Database is out of date.

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Re: [beagleboard] Re: Yet another newbie how to get started

If you have an editor-of-choice(eg Sublime Text), there's a handy trick for 
using it remotely without needing to constantly save-upload your files. 
This works on Windows using WinSCP:
1) Open WinSCP and connect to the BBB
2) Create the empty source file on the BBB(main.c for example)
3) Right Click on the source file, select Open, and the file should open 
in the editor(if it's the default program)
4) Now anytime you save the file, it  will automatically upload the saved 
file to the BBB for you.

My next step is to setup Guard(https://github.com/guard/guard), so that 
whenever a source file is saved on the BBB in a project directory, it will 
trigger the gcc compiler automatically.

On Tuesday, September 2, 2014 7:53:07 PM UTC-7, William Pretty Security 
wrote:

 Worked ok for me J

  

 Some of the software he installs manually is now included in the Eclipse 
 package manager.

 I haven’t tried the remote debugger yet, because I just downloaded it …….

  

 No one could make a greater mistake than he who did nothing because he 
 could do only a little.

 All that is necessary for the triumph of evil is that good men do 
 nothing Edmond Burke *(1729 - 1797)*


 http://www.packtpub.com/building-a-home-security-system-with-beaglebone/book

  

 *From:* beagl...@googlegroups.com javascript: [mailto:
 beagl...@googlegroups.com javascript:] *On Behalf Of *William Hermans
 *Sent:* Tuesday, September 02, 2014 10:45 PM
 *To:* beagl...@googlegroups.com javascript:
 *Subject:* Re: [beagleboard] Re: Yet another newbie how to get started

  

 That blog / Video is meant for the beaglebone white. There will be enough 
 differences with those instructions for the uninitiated to get in way over 
 their head.

 e.g. it will lead into another circle of frustration. 

  

 On Tue, Sep 2, 2014 at 7:39 PM, Joshua Datko jbd...@gmail.com 
 javascript: wrote:



 murrellr-ywtbtysyrb+lz21kgmr...@public.gmane.org javascript: writes:

 
  1.  Load Putty on my PC.
  2.  Establish a SSH terminal session to the board.
  3.  Write my program using VIM (a horrible program to drop on a
  novice, it has a very steep learning curve) or nano (not much
  better).
  4.  Compile and link my program with gcc, after having to learn its
  command-line interface.
  5.  Run my program under the gnu debugger, another command-line tool
  with a steep learning curve.

 I use Emacs. It's much better than vim. (/me ducks and runs after
 trolling a holy war... :p )



  So, now my question.  Is there a easy to use, Windows, graphical
  integrated development environment for developing native Angstrom
  Linux programs for this board?
 

 I don't use Eclipse, but those that do AND work on the BeagleBone say
 that Derek Molloy has a good tutorial on setting up a GUI IDE:


 http://derekmolloy.ie/beaglebone/setting-up-eclipse-on-the-beaglebone-for-c-development/



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 No virus found in this message.
 Checked by AVG - www.avg.com
 Version: 2014.0.4745 / Virus Database: 4015/8145 - Release Date: 09/02/14
 --

 No virus found in this message.
 Checked by AVG - www.avg.com
 Version: 2014.0.4745 / Virus Database: 4007/8033 - Release Date: 08/14/14
 Internal Virus Database is out of date.


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Re: [beagleboard] Re: Yet another newbie how to get started

From:  Michael M mmcdani...@gmail.com
Reply-To:  beagleboard@googlegroups.com beagleboard@googlegroups.com
Date:  Tuesday, September 2, 2014 at 8:49 PM
To:  beagleboard@googlegroups.com beagleboard@googlegroups.com
Subject:  Re: [beagleboard] Re: Yet another newbie how to get started

 If you have an editor-of-choice(eg Sublime Text), there's a handy trick for
 using it remotely without needing to constantly save-upload your files. This
 works on Windows using WinSCP:
 1) Open WinSCP and connect to the BBB
 2) Create the empty source file on the BBB(main.c for example)
 3) Right Click on the source file, select Open, and the file should open in
 the editor(if it's the default program)
 4) Now anytime you save the file, it  will automatically upload the saved file
 to the BBB for you.
That is way to complicated. Just access rootfs via NFS so now you are
editing BBB files on your desktop. Now you can use sublime or eclipse
projects locally on your desktop. Everything works much quicker.

Regards,
John

 My next step is to setup Guard(https://github.com/guard/guard), so that
 whenever a source file is saved on the BBB in a project directory, it will
 trigger the gcc compiler automatically.

 On Tuesday, September 2, 2014 7:53:07 PM UTC-7, William Pretty Security wrote:
 Worked ok for me J

 Some of the software he installs manually is now included in the Eclipse
 package manager.
 I haven¹t tried the remote debugger yet, because I just downloaded it ŠŠ.

 No one could make a greater mistake than he who did nothing because he could
 do only a little.
 All that is necessary for the triumph of evil is that good men do nothing
 Edmond Burke (1729 - 1797)
 http://www.packtpub.com/building-a-home-security-system-with-beaglebone/book

 From: beagl...@googlegroups.com javascript:
 [mailto:beagl...@googlegroups.com javascript: ] On Behalf Of William
 Hermans
 Sent: Tuesday, September 02, 2014 10:45 PM
 To: beagl...@googlegroups.com javascript:
 Subject: Re: [beagleboard] Re: Yet another newbie how to get started

 That blog / Video is meant for the beaglebone white. There will be enough
 differences with those instructions for the uninitiated to get in way over
 their head.
 e.g. it will lead into another circle of frustration.

 On Tue, Sep 2, 2014 at 7:39 PM, Joshua Datko jbd...@gmail.com javascript:
  wrote:

 murrellr-ywtbtysyrb+lz21kgmr...@public.gmane.org javascript:  writes:

  1.  Load Putty on my PC.
  2.  Establish a SSH terminal session to the board.
  3.  Write my program using VIM (a horrible program to drop on a
  novice, it has a very steep learning curve) or nano (not much
  better).
  4.  Compile and link my program with gcc, after having to learn its
  command-line interface.
  5.  Run my program under the gnu debugger, another command-line tool
  with a steep learning curve.
 I use Emacs. It's much better than vim. (/me ducks and runs after
 trolling a holy war... :p )

  So, now my question.  Is there a easy to use, Windows, graphical
  integrated development environment for developing native Angstrom
  Linux programs for this board?

 I don't use Eclipse, but those that do AND work on the BeagleBone say
 that Derek Molloy has a good tutorial on setting up a GUI IDE:

 http://derekmolloy.ie/beaglebone/setting-up-eclipse-on-the-beaglebone-for-c-d
 evelopment/

 --
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 ---
 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.

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 --- 
 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.

 No virus found in this message.
 Checked by AVG - www.avg.com http://www.avg.com
 Version: 2014.0.4745 / Virus Database: 4015/8145 - Release Date: 09/02/14

 No virus found in this message.
 Checked by AVG - www.avg.com http://www.avg.com
 Version: 2014.0.4745 / Virus Database: 4007/8033 - Release Date: 08/14/14
 Internal Virus Database is out of date.
 -- 
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Re: [beagleboard] Python script stops reading serial port after several days

I think Miguel's logging idea is the best way to know exactly what's going 
on. Some additional thoughts:

Based on code, if your program stops receiving data but still runs then it 
is probably infinitely blocking at arduino.readline(). The fact that you 
don't see output from print(line) or print str(LAST_UPDATED) further 
supports that. Perhaps there was a transmission error at some point and the 
two went out of sync(eg the stop bit is never detected)? When you restart 
the script(and re-establish the serial connection), things work fine.

You could try...
-Lowering the baud rate. You can check the AVR data sheet, but I think the 
Arduino's error rate is higher for 115kbps than for say 9600bps. The 
frequency of your data(based on your sample) doesn't necessarily require a 
115kbps transmission rate.
-Adding a timeout to the serial.Serial() constructor. Then do something 
like:
while True:
line = None
line = arduino.readline()
if line is None:
arduino.close()
arduino = serial.Serial(...)
else:
#Do all the Xively/email stuff

(This is just a guess, since I don't know exactly what timeout does: raise 
an error, returns None, returns junk? You'll have to experiment.)

Hope that helps.


On Tuesday, September 2, 2014 7:23:28 AM UTC-7, Miguel Aveiro wrote:

  Hi Chris,

 I don't think the problem is related to the serial port itself. I have a 
 python code that uses 4 serial ports of BBB (tty01, tty02, tty04, tty05) 
 running without any problem for months. 

 I saw your code. If it reaches the Dropping out due to an error: , I 
 don't think it will keep running.

 Use the logging module to write to a file when there is an exception:
 https://docs.python.org/2/howto/logging.html

 Use repr() instead of the str() to show the error, as it returns a string 
 containing a printable representation of an object., and it is easier to 
 see what's wrong.
 https://docs.python.org/2/library/functions.html#func-repr

 If you catch the problem with the logging module, send an email and I can 
 help you with more details.

 Miguel

 On 31-08-2014 22:55, chrism...@gmail.com javascript: wrote:
  
 Hi everyone!

 I've got my BBB rev. C set up as a data logger for a serial data stream 
 from an Arduino. It basically takes this data, uploads it to xively, and 
 checks certain values for exceeded thresholds and sends an email if found. 
 This works fine. However, after the script has been running for several 
 days, it stops working. The script itself seems to continue running, but it 
 stops acknowledging that it's receiving any data or trying to upload to 
 xively. If I ctrl+c out of the script and restart it, it starts working 
 fine again. The device it's connected to continues to work properly 
 regardless of whether the BBB is logging anything, so I don't believe that 
 the problem is with it.

 Is there any way to determine where the problem lies? (BBB, python, etc.?) 
 Here's a copy of my code (please don't mock it too much, I'm a Python noob) 
 :
 http://susepaste.org/399d9d1f

 (This is what the data looks like if it makes any difference:
 2014-08-31 20:51:38.841985
 91,h,44

 2014-08-31 20:51:40.063139
 92,t,72

 2014-08-31 20:51:44.727206
 92,h,42

 2014-08-31 20:51:45.463794
 90,t,71

 2014-08-31 20:52:17.112091
 90,h,44

 ...)

 I've Googled around, and haven't really found anything regarding something 
 like this. There were a couple of random bulletin board posts that seemed 
 similar, but they all went off into no-answer-land.

 Thanks in advance :)
  -- 
 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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Re: [beagleboard] Python script stops reading serial port after several days

I should add that the timeout should be larger than the largest expected 
gap between each data transmission. For example if you expect data coming 
in every minute, then set the timeout to be 2 minutes. If no data comes in 
for 2 minutes, then you know something is wrong.

On Tuesday, September 2, 2014 10:29:12 PM UTC-7, Michael M wrote:

 I think Miguel's logging idea is the best way to know exactly what's going 
 on. Some additional thoughts:

 Based on code, if your program stops receiving data but still runs then it 
 is probably infinitely blocking at arduino.readline(). The fact that you 
 don't see output from print(line) or print str(LAST_UPDATED) further 
 supports that. Perhaps there was a transmission error at some point and the 
 two went out of sync(eg the stop bit is never detected)? When you restart 
 the script(and re-establish the serial connection), things work fine.

 You could try...
 -Lowering the baud rate. You can check the AVR data sheet, but I think the 
 Arduino's error rate is higher for 115kbps than for say 9600bps. The 
 frequency of your data(based on your sample) doesn't necessarily require a 
 115kbps transmission rate.
 -Adding a timeout to the serial.Serial() constructor. Then do something 
 like:
 while True:
 line = None
 line = arduino.readline()
 if line is None:
 arduino.close()
 arduino = serial.Serial(...)
 else:
 #Do all the Xively/email stuff

 (This is just a guess, since I don't know exactly what timeout does: raise 
 an error, returns None, returns junk? You'll have to experiment.)

 Hope that helps.


 On Tuesday, September 2, 2014 7:23:28 AM UTC-7, Miguel Aveiro wrote:

  Hi Chris,

 I don't think the problem is related to the serial port itself. I have a 
 python code that uses 4 serial ports of BBB (tty01, tty02, tty04, tty05) 
 running without any problem for months. 

 I saw your code. If it reaches the Dropping out due to an error: , I 
 don't think it will keep running.

 Use the logging module to write to a file when there is an exception:
 https://docs.python.org/2/howto/logging.html

 Use repr() instead of the str() to show the error, as it returns a 
 string containing a printable representation of an object., and it is 
 easier to see what's wrong.
 https://docs.python.org/2/library/functions.html#func-repr

 If you catch the problem with the logging module, send an email and I can 
 help you with more details.

 Miguel

 On 31-08-2014 22:55, chrism...@gmail.com wrote:
  
 Hi everyone!

 I've got my BBB rev. C set up as a data logger for a serial data stream 
 from an Arduino. It basically takes this data, uploads it to xively, and 
 checks certain values for exceeded thresholds and sends an email if found. 
 This works fine. However, after the script has been running for several 
 days, it stops working. The script itself seems to continue running, but it 
 stops acknowledging that it's receiving any data or trying to upload to 
 xively. If I ctrl+c out of the script and restart it, it starts working 
 fine again. The device it's connected to continues to work properly 
 regardless of whether the BBB is logging anything, so I don't believe that 
 the problem is with it.

 Is there any way to determine where the problem lies? (BBB, python, 
 etc.?) Here's a copy of my code (please don't mock it too much, I'm a 
 Python noob) :
 http://susepaste.org/399d9d1f

 (This is what the data looks like if it makes any difference:
 2014-08-31 20:51:38.841985
 91,h,44

 2014-08-31 20:51:40.063139
 92,t,72

 2014-08-31 20:51:44.727206
 92,h,42

 2014-08-31 20:51:45.463794
 90,t,71

 2014-08-31 20:52:17.112091
 90,h,44

 ...)

 I've Googled around, and haven't really found anything regarding 
 something like this. There were a couple of random bulletin board posts 
 that seemed similar, but they all went off into no-answer-land.

 Thanks in advance :)
  -- 
 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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 For more options, visit https://groups.google.com/d/optout.


  

-- 
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Re: [beagleboard] Re: Yet another newbie how to get started