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Quadrature Encoder Interface

 
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ahmadkamalnasir



Joined: 24 Nov 2009
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Quadrature Encoder Interface
PostPosted: Sun Nov 29, 2009 3:44 pm     Reply with quote

Hi,
In the manual following functions are defined but no library support or device header files contains the definitions.

1- qei_set_count()
2- qei_get_count()
3- qei_status()
4- setup_qei( )

I am not sure whether this feature is missing for kept for the future release Exclamation Question

N.B.:
Could you provide some example program for PIC18F2431 QEI in position and/or velocity mode.
PCM programmer



Joined: 06 Sep 2003
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PostPosted: Sun Nov 29, 2009 5:17 pm     Reply with quote

I don't think those functions are implemented by CCS yet. I checked
it for the 18F4331 with compiler vs. 4.101 and the compiler did not
recognize the setup_qei() function.

Here is a 3-page thread where they implement it by writing directly
to the PIC registers:
http://www.ccsinfo.com/forum/viewtopic.php?t=31720
SoBot



Joined: 20 Apr 2010
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Quadrature encoder module
PostPosted: Tue Apr 20, 2010 8:38 am     Reply with quote

Do you know if these Quadrature Eencoder module functions has by any chance been implimented in the meantime?
dyeatman



Joined: 06 Sep 2003
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PostPosted: Tue Apr 20, 2010 9:41 am     Reply with quote

I just checked and setup_qei() is not recognized by 4.106 for the 18F4331
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