Some time back, (quite a few weeks) I messaged a problem I had with
F876's programming OK, but not running.  No one had any ideas at the
time. And (as by law) the problem wasn't always apparent.
I found the problem which may interest some people.
Background:
I was using two DonTronics DT001 programmer hardware boards - each
connected to it's own port on the same PComputer.
I was using P16PRO (Picall)as the programmer program. With this
configuration I can write and program two PICs at once, which is
absolutely fantastic when one is writing something which uses
communication between the two PICs. (In this case, the uarts taking to
each other over a readio link)

Anywaaaayyyy, one of the things that happens is that P16PRO runs in one
window only. You can't have two programs running separately, with a
board for each one.  If you try, PC16PRO just "diverts" to the one
already running.  (Like an Adobe Acrobat reader does.)  To program one
PIC, you change the PC port and burn.  To burn the other PIC, load the
program, change the PC port, and burn.  That works faultlessy -
except.........

IF..... you load the PIC program into P16PRO, THEN change the port and
burn, everything appears OK, it will even verify, but the PIC will not
run!
Select the PC port FIRST, then load the PIC program, then burn.

I don't regard this as a "fault" or a failing by Bojan, it's just one of
those things.  I may be the only one on the planet to burn two PICS side
by side, but there it is.  As I said, when getting two PICS to relate to
each other, it works really well.

Howard Simpson

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