Barry wrote:
>  Then later I figured
>out where there was some misunderstanding between the compiler
>and me.  It always turns out to be software...


Ain't that the truth ...

Things are working nicely now, but frankly I'm not sure exactly what
was wrong initially.  As I made the test code simpler and simpler, I
noticed that one of my two JW parts generally wouldn't work, but the
other would ... Perhaps I was somehow failing to erase #1 ... I
dunno. It programmed OK -- I even read everything back to check it.
But I was able to get #2 to reset and power-up nicely on both a
protoboard and the target PCB -- learned quite a bit in the process,
like GP3's pull-ups are much weaker than GP0-GP1's, but it's enough
to do the job.

Once that was behind me, I discovered two coding problems, one which
I was able to work around, and one which was just like Barry wrote --
this was my first exposure to the PIC12's OPTION register /
instruction, and I was doing bad, bad things.

Thank you all (Olin, Spehro, Les, Roman and Barry) for your help -- I
went down various paths as per your suggestions with success.

Regards,
--

  ______________________________________
   Andrew E. Kalman, Ph.D.   aek@pumpkininc.com

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