Accelerometers losing values
andy at openmoko.com
Wed Feb 11 18:35:31 CET 2009
-----BEGIN PGP SIGNED MESSAGE-----
Michael Tansella wrote:
>> The overruns /sys thing is the number of times we came to collect a
>> sample set from the accelerometer, but when we did it told us we were
>> late and missed one or more samples that got lost before this one.
> Ok, thanks then this shows the values I'm missing sometimes.
Maybe, if it increments each time there is a blackout.
> Does this mean python is too slow for this or doesn't get enough resources? If
> I execute the script, python takes approx 22% and Xglamo 50% of CPU.
> Was anybody already able to read really every Acc value when sample_rate is
> set to 400 Hz?
No it can mean a bunch of things, there is already a big investigation
into why we drop serial traffic sometimes, this can easily be related.
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.9 (GNU/Linux)
Comment: Using GnuPG with Fedora - http://enigmail.mozdev.org
-----END PGP SIGNATURE-----
More information about the openmoko-kernel