[beagleboard] beaglebone booting

2015-06-28 Thread Vishal Ramani
Hi
I was following a guide from a following link to create a partition on SD card. 
I was using beaglebone Black's SD card slot to do the partition as beaglebone 
has Linux and contains all the packages to create partition.

 http://www.armhf.com/boards/beaglebone-black/bbb-sd-install/

When I gave a command to read the partition and error popped up that 
Re-reading of partition failed due to error 22. The kernel still uses the old 
partition table. It will be informed after next rebbot or running partprobe or 
kpartx.
 So I ran partprobe and kpartx but I didn't work. So I reeboted the system. And 
it stopped booting.

Can anybody help on the problem ?

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[beagleboard] Re: Beaglebone Black freezing, USB related?

2015-06-28 Thread yuehua . hust
This fixed my problem on Ubuntu. My steps are as follows.
1. sudo apt-get install cpufrequtils
2. sudo cpufreq-set -g performance

在 2013年11月27日星期三 UTC+8上午2:52:02,Dino Tinitigan写道:

 Hi all,

 I think I *may* have a potential fix.

 I've had the same issues with my logitech c920 and my usb wifi adapter.
 I have a java program that takes a webcam image using opencv and then it 
 is uploaded to my server.

 When I skip either the capture or upload part of my program it is 
 completely stable.
 However combined it freezes after about 15-30min.

 When I look at the beaglebone black the leds are no longer flashing.
 Anyway, this has taken me two weeks to have a potential solution.

 looking at the dmesg output i get:

 [  943.043325] omap_i2c 44e0b000.i2c: controller timed out
 [  944.053233] omap_i2c 44e0b000.i2c: controller timed out
 [  945.063042] omap_i2c 44e0b000.i2c: controller timed out
 [  945.069066] tps65217 0-0024: Read from reg 0xf failed
 [  946.074832] omap_i2c 44e0b000.i2c: controller timed out
 [  946.080862] tps65217 0-0024: Read from reg 0x11 failed
 *[  946.086629] cpufreq_cpu0: failed to scale voltage down: -110*


 It seems that the cpu voltage is being or attempted to be scaled down.

 I then tried to change the my cpufreq governor to performance and that 
 seemed to have fixed it.

 root@beaglebone:~# *cpufreq-set -g performance*

 btw. I am using angstom with kernel 3.8.13

 my BBB has now been running without freezing for 14 hours which is 13.5 
 hours more than before.

 hopefully this fixes your guy's freezing problems as well.






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[beagleboard] USB1_OCn pin - who is listening?

2015-06-28 Thread Ben Mitch
Hiya

The Beaglebone Black schematic has the over-current flag pin from the USB 
power controller for the USB host port connected to the AM3358's T16 pin 
(say, GPIO1_26). Does anybody know why? Who is listening to that pin? I 
can't find anything in the device manual about over-current, which suggests 
it needs to be handled in software. But what software? Any pointers, anyone?

Thanks in advance

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Re: [beagleboard] Is BBB compatible with Arduino Sensors?

2015-06-28 Thread William Hermans
The Beaglebone black will support *anything* you can physically attach, and
have a driver for.

So while maybe that driver does not exist for the beaglebone black
currently, you can always write one.

On Sun, Jun 28, 2015 at 11:42 AM, crypticfat...@gmail.com wrote:

 Hello,

 I am new to this BBB thingy. Previously I used Arduino. Planning to shift
 to BBB. Does BBB support arduino sensors e.g. Ultrasound sesnsor, PIR
 sensor etc.

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Re: [beagleboard] USB1_OCn pin - who is listening?

2015-06-28 Thread Gerald Coley
It is there for someone to listen to.

Gerald


On Sun, Jun 28, 2015 at 4:24 PM, Ben Mitch goo...@benmitch.net wrote:

 Hiya

 The Beaglebone Black schematic has the over-current flag pin from the USB
 power controller for the USB host port connected to the AM3358's T16 pin
 (say, GPIO1_26). Does anybody know why? Who is listening to that pin? I
 can't find anything in the device manual about over-current, which suggests
 it needs to be handled in software. But what software? Any pointers, anyone?

 Thanks in advance

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-- 
Gerald

ger...@beagleboard.org
http://beagleboard.org/

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