James Kane wrote:
>Dan:
>Thanks for the comments.
>1)I'm aware of the constitution of the 10 bits of duty, but my question is
>why?  If the period reg is 8 bits, any set of bits 9 and 10 at any time will
>yield 100%.  Do I have that right?

No, as I said last time, the 9th and 10th bits concatenate on the "LSB" end.
================

>2) In the retfie I do save via MC's published method the status and W regs.
>When I goto out of the isr, I won't need the hardware stack contents (I hope
>that's right), but maybe I should restore the registers.  The application is
>too long to describe here.  Thanks.  JIm
>

Details are too sketchy to understand exactly what your problem is here.
Normally you don't goto out of an ISR, you exit it via retfie, using
proper bookkeeping procedures - register retores. OTOH, some people
[myself included] use interrupts to break out of endless loops/etc,
and go back to the starting/initialization point in the code.

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