Is there Beaglebone Black Guide for LED diagnostics?

[win...@winstonford.com]

Is there a guide for diagnosing Beaglebone black boot problems based on LEDs?  

For instance, when I boot, I end up with 1 of 2 scenarios:

1. user1 and user2 on solid.

2. user0 beating faster than a normal heartbeat, and user1 beating intermittently.

I am booting Ubuntu 12.04 from microSD.  It for weeks until now.  Now I can't ping, ssh, or http in.

Any help appreciated,

W

[Keerthana Manivannan]

Hey did you find any solution to this? :D

You must have, it's been two years! hehe.

[Gerald Coley]

http://beagleboard.org/getting-started

Gerald

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Gerald

 

ger...@beagleboard.org

http://beagleboard.org/

gco...@emprodesign.com

[kmani...@houstonmechatronics.com]

Hi Gerald,

I'm running Ubuntu 16.04 in my uSD card and I'm booting my BBB.
It used to behave normally, as in, the USER LEDs blink. Finally, after booting up, I used to get the heartbeat in USER LED0, and no lights on the others.

But now, I don't know what I did, but I can't connect to the board and after a lot of time after booting, the  USER LED2 lights up dimly, and I get the heartbeat from LED0.
The board isn't getting connected.

What did I do? How to fix this?

[Gerald Coley]

Flash using one of the official images to make sure everything is working fine.

Gerald

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[William Hermans]

Flash using one of the official images to make sure everything is working fine.

Gerald

And then buy a serial debug cable. That's what they are for. Troubleshooting . . .

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[kmani...@houstonmechatronics.com]

oh ok! thanks. I'll buy it!

[kmani...@houstonmechatronics.com]

Hey gerald, and william. I bought the serial cable and I got this:

can you figure out what's wrong here? 

[Robert Nelson]

On Mon, Jun 20, 2016 at 3:14 PM, <kmani...@houstonmechatronics.com> wrote:

Hey gerald, and william. I bought the serial cable and I got this:

can you figure out what's wrong here? 

What's the issue?

Your running 16.04, i need to tweak connman, so just:

sudo ifconfig -a

sudo dhclient eth0

and then you'll have internet..

Regards,

--

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

[kmani...@houstonmechatronics.com]

no, I think the beaglebone black is connected via the serial port cable, not the usb. I want to connect to the BBB through the USB.

[Robert Nelson]

On Mon, Jun 20, 2016 at 3:23 PM, <kmani...@houstonmechatronics.com> wrote:

no, I think the beaglebone black is connected via the serial port cable, not the usb. I want to connect to the BBB through the USB.

So, "YOU" need to configure the usb port to do that.

It's not a hardware default.

It's done in software, using the g_multi driver:

The magic is done in this script on bootup:

https://github.com/RobertCNelson/boot-scripts/blob/master/boot/am335x_evm.sh

Regards,

[kmani...@houstonmechatronics.com]

perfect, it worked, thanks! :)