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ISR and global variables

 
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Beta2K



Joined: 24 Nov 2007
Posts: 5

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ISR and global variables
PostPosted: Thu Nov 29, 2007 10:21 am     Reply with quote
I'm running Timer1 on a 16F866 and I want it to set a flag that my mail program uses. Problem is my ISR for timer1 reads globals as 0 and outside the ISR any globals it sets are not changed.

Any ideas?
Ttelmah
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PostPosted: Thu Nov 29, 2007 11:26 am     Reply with quote
Er.
It works for everyone else!....
Look at ex_rtctimer.c
Look at how 'calender_time' is declared in time.h, and how it is used in rtctimer.c
You are not using multiple compilation units are you?. If so, are you sure you have setup the link declaration correctly.

Best Wishes
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