Posted on October 18, 2011 at 18:48Warning...
If you need it, it's better using ''extern volatile'' variables in main, accessed by the interrupt.c file.
A much better way is to make a set of ''set_var'' ''get_var'' ''clr_var'' functions in your main and call them from your interrupt.c file.
For example, the timer interrupt will add a second in the RTC.
- With ''extern volatile'' variable you will have in your interrupt.c:
extern volatile main_time;
void TIMER(void) interrupt
{
main_time++;
}
- With ''get-set-clr'' functions in main.c file, you will have in your interrupt.c:
#include ''main.h''
void TIMER(void) interrupt
{
u32 time = MAIN_GetTime();
MAIN_SetTime(++time);
}
Use ''inline functions'' if you can.
- If you need to move that:
- Move functions needed from your interrupt.c file to your main.c file,
- Add all the #include ''xxx.h'' headers from interrupt.c in main.c
- Try it
