> Feed the CLC with the CWG output

Unfortunately CWG is not a permitted CLC input and I don't
believe you can intercept the CWG output before the pins

Comparators and PWM are permitted CLC inputs though, so
perhaps a suggestion below might work. A reply I was
composing as you replied

---------------------

> Do you now see what I mean now?

Hi James,

yes I do now, as per my later reply

You'll appreciate that I don't have a chip to play with and can
only try and help via the datasheet

It seems to me that as you can't modify the output of the CWG
module before it gets to the pins, you could use those pins and
the PWM pins as inputs to s/w, eg by reading the LAT registers
or a physical loopback, for example to generate INT interrupts
or even possibly into the comparator inputs

The s/w can then use instruction logic to get what you want on
a different pair pins

If you used the comparators then perhaps something like this -

Two PWM pins are for driving the H-bridge. (Actually only one
pin at a time is PWM, the other is I/O)
The CWG pins are connected (wired) to a pair of comparator pins

Depending on the state of the comparator outputs (ie the CWG
and its pin states), you set a pin to output either PWM or as a high/
low general purpose I/O. You'd have to alternately assign the
two pins as either PWM or I/O

So you still have the automated waveform generation, with s/w
to modify it for output. During normal operation the PWM would
be turned off, the s/w copying the CWG pins' states to those
alternate pins now both assigned as I/O

There are several ways you can determine the state of the CWG
pins and process that. I think that the modules alone aren't capable
of doing what you want on their own, you need some s/w
intervention

Joe


-----
No virus found in this message.
Checked by AVG - www.avg.com
Version: 2016.0.7690 / Virus Database: 4627/12748 - Release Date: 08/04/16

--=20
http://www.piclist.com/techref/piclist PIC/SX FAQ & list archive
View/change your membership options at
http://mailman.mit.edu/mailman/listinfo/piclist
.