Continuing the hunt ..
Chuck has been pounding out ideas on the google plus group (Cortex
M3..), and I've got gdb working nicely now anyway.. and it would seem:
i) The ISR is in fact being called
ii) Togglign the GPIO inside of it is not working
-> but when executing the ISR inside gdb, it does work
iii) Setting a volatile int in the ISR, and then toggling the GPIO
in the main loop does in fact work
Sort of feels like a timing issue.. toggling the GPIO takes too
long?
But that cannot be, since this interupt should occur pretty
infrequently, and togglign a GPIO is very fast.
So breakpoint on the isr in gdb and the LED blinks fine; or blink
in main after toggling variabnle in the ISR, works fine on chip on
autopilot; but ISR togglign GPIO on autopilot no go..
.. any ideas?
I'll hit the sack now, but hopefully someone has ideas in the
morning :)
jeff
Sorry to have taken over the mailing list, but it seemed quiet,
thought I'd liven it up. Is this in fact an appropriate topic for the
mailing list here, or should I take it elsewhere?
--
If everyone would put barbecue sauce on their food, there would be no war.
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