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 :)
--
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 email to beagleboard+unsubscr...@googlegroups.com <mailto:beagleboard+unsubscr...@googlegroups.com>.
For more options, visit https://groups.google.com/d/optout.

--
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 email 
to beagleboard+unsubscr...@googlegroups.com.
For more options, visit https://groups.google.com/d/optout.

Reply via email to