From comedi  Thu Sep 20 23:55:30 2007
From: Caleb Tennis <caleb () aei-tech ! com>
Date: Thu, 20 Sep 2007 23:55:30 +0000
To: comedi
Subject: Re: e series counter changes in latest comedi
Message-Id: <7DE794F3-F18D-45A2-8BD6-AD172C26632C () aei-tech ! com>
X-MARC-Message: https://marc.info/?l=comedi&m=119033303512469


>
> There is a gpct_simple_counting.c demo in comedilib.
>
>

I finally got it after much hacking.  The trick was setting the clock  
source, which I found after looking in the comments at the top of the  
gpct_simple_counting.c file.  In my case, I wanted it to be the PFI8  
pin corresponding to the SOURCE input of the timer.  That  
necessitated a value of 0x20 + 8 (41) for INSN_CONFIG_SET_CLOCK_SRC.

I write this for my own reference later in case I forget why I did  
this, and in case anyone else is chasing e-series counter stuff with  
the latest comedi.

Caleb

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