I think I'm running into problems with variable corruption during
interrupts. This MAY be due to bank switching going in and out of
interrupts (forcing the variables used in the ISR into access RAM seems to
fix the problem). Generally, I want some global variables that the
interrupts can change (things like ram timers that are decremented by
timer interrupts, uart buffers, etc.). The Microchip C18 manual does not
seem to give very thorough information on interrupts (and the manuals seem
to be getting worse... the older manuals I have are more complete). So,
can someone give me a definitive list of what I need to do in declaring
variables in a C interrupt service routine to have them work right? Does
the interrupt pragma set up and restore the bank register so my main line
code still knows where its variables are?

THANKS!

Harold


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