QEP encoder troubleshoot

Started by pano...@gmail.com October 17, 2011
Hi,

I am a new user of F2812 (and also in your forum) and I face problems with QEP using simulink. I am trying to check through RTDX if my QEP input is right before implementing any advanced control code.

Firstly, when QEP and PWM are in the same EV then the captured results are inconsistent. Contrarily, in different EVs everything seems to work perfectly (almost).

Secondly, the encoder resolution is 10000 pulses per revolution, which means that the QEP should be 20000, 40000 depending on the pulses counting mode (rising, falling etc). However, the QEP peak value is unexpectedly of about 16000.

If someone knows sth about these issues (especially on the second), his contribution will be valuable.

Thanks in advance!


You can post a message or access and search the archives of this group on DSPRelated.com:
http://www.dsprelated.com/groups/c28x/1.php

_____________________________________
Note: If you do a simple "reply" with your email client, only the author of this message will receive your answer. You need to do a "reply all" if you want your answer to be distributed to the entire group.

_____________________________________
About this discussion group:

Archives: http://www.dsprelated.com/groups/c28x/1.php

To Post: Send an email to c...

Other DSP Related Groups: http://www.dsprelated.com/groups.php