mirror of
https://github.com/oliverschmidt/contiki.git
synced 2024-12-23 01:29:33 +00:00
23 lines
557 B
C
23 lines
557 B
C
|
volatile unsigned int pit_count = 0;
|
||
|
|
|
||
|
|
static void NACKEDFUNC ATTR system_int (void) { /* System Interrupt Handler */
|
||
|
|
|
||
|
|
ISR_ENTRY();
|
||
|
|
|
||
|
|
if (*AT91C_PITC_PISR & AT91C_PITC_PITS) { /* Check PIT Interrupt */
|
||
|
|
pit_count++;
|
||
|
|
/*
|
||
|
|
if ((pit_count % 100) == 0) {
|
||
|
|
unsigned int led_state = (pit_count % 300) / 100;
|
||
|
|
*AT91C_PIOA_ODSR = ~(1<<led_state);
|
||
|
|
}
|
||
|
|
*/
|
||
|
|
|
||
|
|
*AT91C_AIC_EOICR = *AT91C_PITC_PIVR; /* Ack & End of Interrupt */
|
||
|
|
} else {
|
||
|
|
*AT91C_AIC_EOICR = 0; /* End of Interrupt */
|
||
|
|
}
|
||
|
|
|
||
|
|
ISR_EXIT();
|
||
|
|
}
|