If possible ide like to see your scheduler?
On Tue, 12 May 2009,
s...@dummgebabbel.de wrote:
Hello
Raphael Neider schrieb:
Dear Néstor,
your answer is very appreciated. I have refactored the code as you
told, I put all the global variables in a header file, called
"defs.h". I have also taken out all the calls to functions from the
interrupt. Now, interrupt handler routine is a lot simpler. Just one
thing: I haven't been able to disable the interrupt and save the stack
with the code you gave me. Apparently, it should work, since I'm using
a PIC 16F877, which seems to have 16 stack bytes. Am I missing
something from your explanation?
One sidenote. IIRC you cannot access the stack on the pic16f devices.
This is only possible on pic18f devices. There is a wonderfull appnote
about that on microhcip website.
I managed to have a small scheduler which saves the context (stack,
sdcc-stack via FSR1,FSR2, and some regs) of up to 4 tasks running on a
pic18f. If you like i can send you the code.
Regards,
Jan
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