headtracker/timer.c at master · lcnssantos/headtracker · GitHub

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#include <xc.h>
#include "timer.h"

/*
@purpose: Timer 0 construction function
@parameters: The Timer Class
@return: void
@version: V0.1
*/

void Timer0_Construct(Timer0 * Timer)
{
    Timer->Init = Timer0_Init;
    Timer->Write = Timer0_Write;
    Timer->Read = Timer0_Read;
    Timer->IntConfig = Timer0_Interrupt_Config;
}

/*
@purpose: Start the timer 0
@parameters: The timer class
@return: void
@version: V0.1
*/
void Timer0_Init(Timer0 * Timer)
{
    T0CON = 0x00;
    T0CONbits.TMR0ON = Timer->Opr;
    T0CONbits.T08BIT = Timer->Mode;
    T0CONbits.T0CS = Timer->ClkSrc;
    T0CONbits.T0SE = Timer->SrcEdg;
    T0CONbits.PSA = Timer->PSA;
    T0CON += Timer->PSAConfig;
}

/*
@purpose: Write a value to the timer 0
@parameters: value: -> value to be writed
@return: void
@version: V0.1
*/
void Timer0_Write(int Value)
{
    TMR0 = 0xAAAA;
}

/*
@purpose: Read the timer 0
@paramaters: void
@return: the timer 0 value
@version: V0.1
*/

int Timer0_Read(void)
{
    return TMR0;
}

/*
@purpose: Setup the Timer 0 Interrupt
@parameters: Intpr: The priority: 1-> high priority; 0 low priority
@return: void
@version: V0.1
*/
void Timer0_Interrupt_Config(char IntPr)
{
    INTCONbits.TMR0IE = 1;
    INTCONbits.TMR0IF = 0;
    INTCON2bits.TMR0IP = IntPr;
}