[beagleboard] Troubleshooting UART1 on Ubuntu 14 Kernel 3.14

[hamwich12]

Hi,


Just recently moved from kernel 3.8 to 3.14 to solve a wifi issue and i've 
now run into some problems with UART1 /ttyO1 

Description:Ubuntu 14.04.1 LTS
uname -r
3.14.22-ti-r31

Some troubleshooting assistance would be appreciated as I am not sure how 
to pinpoint where the problem is.

Im running an RFID module over the serial port using UART1.  It was pretty 
easy to set up in 3.8 kernel with the capemger but im a bit out off my 
depth without it.

There are a number of steps i'm not confident that I've done correctly.

I have looked at a lot of tutorials on this but most are for debian or 
angstrom.  I've tried following this guide:
http://voidnoise.co.uk/blog/?p=703 without success although my overlay is 
the same.

The main issue I have is I only have one way to test this and that is by 
running the python program to see if it reads an RFID.  

How can i get into more detail to pinpoint the issue, I'm pretty sure I 
haven't created / complied the overlay correctly, but maybe I haven't 
upgraded the dtc activated UART1 or something i haven't even thought of.

This is the result of
 ls /dev/ttyO1
/dev/ttyO1


Any help appreciated.





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[beagleboard] Re: Wifi unreliable

[hamwich12]

Hi Tommi,

The only way I could do it was follow this post:
http://beagleboard.org/Community/Forums?place=msg%2Fbeagleboard%2F9KCIs7yqsa8%2FThUHYh8KQzgJ



On Sunday, November 30, 2014 10:46:17 AM UTC+11, Tommi wrote:

 Hey everyone, 

 I have been using the BBB now for quite a while and I really like it. 
 There is only one persistent problem I do not seem to get rid of. So I hope 
 you can guide me into the right direction. 

 I am using the Ourlink wifi dongle 
 https://www.adafruit.com/products/1012 to connect to the internet and 
 wicd-curses to set up the wifi. Initially it seems to work fine. 

 However, quite often the dongle disconnects and I am no longer connected 
 to the internet. I am unsure how to proceed or what I could try. A couple 
 of observations/comments:
 - I am using an external usb hub 
 http://www.amazon.com/dp/B005A0B3FG/ref=pe_385040_121528360_TE_dp_1 and 
 the beaglebone is also powered from a 5V wall plug 
 https://www.adafruit.com/products/276. So sketchy power supply should 
 not be the issue as some people indicate.
 - Interestingly wicd-curses still indicates that it is connected, however 
 the router does not confirm that and I cannot connect to the BBB. 
 - It seems to happen more often when I try to run BTSync to push a lot of 
 data through the BBB to an external HDD. If it sits just there and idles it 
 can be online for days without problem. 

 Do you guys have any advice what to try? I am quite lost and the internet 
 does not give me any more help...

 Thanks!
 Tommi


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