AW: Rotary encoder behaves very strange

From: fransenpeter <fransenpeter_at_gawab.com> · Date: Sat, 27 Oct 2007 11:26:09 +0200

The Problem is solved, it was a hardware fault of the rotary encoder.
Thanks for reading anyway!

-----Ursprüngliche Nachricht-----
Von: comedi-admin_at_comedi.org [mailto:comedi-admin_at_comedi.org] Im Auftrag von
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Gesendet: Freitag, 26. Oktober 2007 18:15
An: comedi_at_comedi.org
Betreff: Rotary encoder behaves very strange

Dear Comedi list,

I programmed a comedi driver with quadrature encoder support.

I use the quadrature encoder on the MF 614 and programmed a C program 
with the help of the MF614 manual. Reading the counter works, but when 
the rotary encoder stopps and IRC0A+ has a high signal, the counter 
keeps counting upwards! Even stranger, if I disconnect GND from the 
MF614, the encoder counts downwards.
I checked the wiring, it seems just right.
Has anybody seen something like this before?

Thanks a lot!

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