Subversion Repositories Code-Repo

#include <xc.h>

#include "main.h"

#include "TIMER.h"

void (*timer_1_callback)(void);

void (*timer_2_callback)(void);

void TIMER_1_Init(void (*callback)(void)) {

    timer_1_callback = callback;

    T1CONbits.TMR1CS = 2;   // Clock source is ext oscillator

    T1CONbits.T1CKPS = 0;   // Prescale of 1:1

    T1CONbits.T1OSCEN = 1;  // Dedicated oscillator circuit enabled

    T1CONbits.nT1SYNC = 1;  // Async external clock input

    T1CONbits.TMR1ON = 0;   // Timer stopped

    T1GCONbits.TMR1GE = 0;  // Gate disabled

    TMR1 = 0x8000;

    PIE1bits.TMR1IE = 1;    // Timer 1 overflow interrupt

}

void TIMER_1_Start(void) {

    T1CONbits.TMR1ON = 1;   // Start timer

}

void TIMER_1_Stop(void) {

    T1CONbits.TMR1ON = 0;   // Stop timer

}

void TIMER_1_Interrupt_Handler(void) {

    timer_1_callback();

    TMR1 = 0x8000;

}

void TIMER_2_Init(void (*callback)(void)) {

    timer_2_callback = callback;

    T2CONbits.T2OUTPS = 0;  // 1:1 Postscaler

    T2CONbits.TMR2ON = 0;   // Timer stopped

    T2CONbits.T2CKPS = 0;   // 1:1 Perscaler

    PIE1bits.TMR2IE = 1;    // Timer 2 overflow interrupt

}

void TIMER_2_Start(void) {

    T2CONbits.TMR2ON = 1;   // Start timer

}

void TIMER_2_Stop(void) {

    T2CONbits.TMR2ON = 0;   // Stop timer

}

void TIMER_2_Interrupt_Handler(void) {

    timer_2_callback();

}