uaveiro-leci/2ano/2semestre/ac2/aula08/part1-ex2.c

23 lines
794 B
C
Raw Normal View History

#include <detpic32.h>
void _int_(12) isr_T3(void) {
putChar('.');
IFS0bits.T3IF = 0; // Reset timer T3 interrupt flag
}
int main() {
T3CONbits.TCKPS = 7; // 1:256 prescaler
PR3 = 39062; // Fout = 20MHz / (256 * (39062 + 1)) = 2Hz
TMR3 = 0; // Reset timer T3 count register
T3CONbits.TON = 1; // Enable timer T3 (must be the last command of the timer configuration sequence)
IPC3bits.T3IP = 2; // Interrupt priority (must be in range [1..6])
IEC0bits.T3IE = 1; // Enable timer T3 interrupts
IFS0bits.T3IF = 0; // Reset timer T3 interrupt flag
EnableInterrupts(); // Global Interrupt Enable
while (1);
return 0;
}