167 lines
4.0 KiB
C
167 lines
4.0 KiB
C
/**
|
|
TMR0 Generated Driver File
|
|
|
|
@Company
|
|
Microchip Technology Inc.
|
|
|
|
@File Name
|
|
tmr0.c
|
|
|
|
@Summary
|
|
This is the generated driver implementation file for the TMR0 driver using PIC10 / PIC12 / PIC16 / PIC18 MCUs
|
|
|
|
@Description
|
|
This source file provides APIs for TMR0.
|
|
Generation Information :
|
|
Product Revision : PIC10 / PIC12 / PIC16 / PIC18 MCUs - 1.81.8
|
|
Device : PIC18F97J60
|
|
Driver Version : 2.01
|
|
The generated drivers are tested against the following:
|
|
Compiler : XC8 2.36 and above
|
|
MPLAB : MPLAB X 6.00
|
|
*/
|
|
|
|
/*
|
|
(c) 2018 Microchip Technology Inc. and its subsidiaries.
|
|
|
|
Subject to your compliance with these terms, you may use Microchip software and any
|
|
derivatives exclusively with Microchip products. It is your responsibility to comply with third party
|
|
license terms applicable to your use of third party software (including open source software) that
|
|
may accompany Microchip software.
|
|
|
|
THIS SOFTWARE IS SUPPLIED BY MICROCHIP "AS IS". NO WARRANTIES, WHETHER
|
|
EXPRESS, IMPLIED OR STATUTORY, APPLY TO THIS SOFTWARE, INCLUDING ANY
|
|
IMPLIED WARRANTIES OF NON-INFRINGEMENT, MERCHANTABILITY, AND FITNESS
|
|
FOR A PARTICULAR PURPOSE.
|
|
|
|
IN NO EVENT WILL MICROCHIP BE LIABLE FOR ANY INDIRECT, SPECIAL, PUNITIVE,
|
|
INCIDENTAL OR CONSEQUENTIAL LOSS, DAMAGE, COST OR EXPENSE OF ANY KIND
|
|
WHATSOEVER RELATED TO THE SOFTWARE, HOWEVER CAUSED, EVEN IF MICROCHIP
|
|
HAS BEEN ADVISED OF THE POSSIBILITY OR THE DAMAGES ARE FORESEEABLE. TO
|
|
THE FULLEST EXTENT ALLOWED BY LAW, MICROCHIP'S TOTAL LIABILITY ON ALL
|
|
CLAIMS IN ANY WAY RELATED TO THIS SOFTWARE WILL NOT EXCEED THE AMOUNT
|
|
OF FEES, IF ANY, THAT YOU HAVE PAID DIRECTLY TO MICROCHIP FOR THIS
|
|
SOFTWARE.
|
|
*/
|
|
|
|
/**
|
|
Section: Included Files
|
|
*/
|
|
|
|
#include <xc.h>
|
|
#include "tmr0.h"
|
|
|
|
/**
|
|
Section: Global Variables Definitions
|
|
*/
|
|
|
|
void (*TMR0_InterruptHandler)(void);
|
|
|
|
volatile uint16_t timer0ReloadVal;
|
|
|
|
/**
|
|
Section: TMR0 APIs
|
|
*/
|
|
|
|
|
|
void TMR0_Initialize(void)
|
|
{
|
|
// Set TMR0 to the options selected in the User Interface
|
|
|
|
//Enable 16bit timer mode before assigning value to TMR0H
|
|
T0CONbits.T08BIT = 0;
|
|
|
|
// TMR0H 158;
|
|
TMR0H = 0x9E;
|
|
|
|
// TMR0L 87;
|
|
TMR0L = 0x57;
|
|
|
|
|
|
// Load TMR0 value to the 16-bit reload variable
|
|
timer0ReloadVal = (uint16_t)((TMR0H << 8) | TMR0L);
|
|
|
|
// Clear Interrupt flag before enabling the interrupt
|
|
INTCONbits.TMR0IF = 0;
|
|
|
|
// Enabling TMR0 interrupt.
|
|
INTCONbits.TMR0IE = 1;
|
|
|
|
// Set Default Interrupt Handler
|
|
TMR0_SetInterruptHandler(TMR0_DefaultInterruptHandler);
|
|
|
|
// T0PS 1:2; T08BIT 16-bit; T0SE Increment_hi_lo; T0CS FOSC/4; TMR0ON disabled; PSA not_assigned;
|
|
T0CON = 0x18;
|
|
}
|
|
|
|
void TMR0_StartTimer(void)
|
|
{
|
|
// Start the Timer by writing to TMR0ON bit
|
|
T0CONbits.TMR0ON = 1;
|
|
}
|
|
|
|
void TMR0_StopTimer(void)
|
|
{
|
|
// Stop the Timer by writing to TMR0ON bit
|
|
T0CONbits.TMR0ON = 0;
|
|
}
|
|
|
|
uint16_t TMR0_ReadTimer(void)
|
|
{
|
|
uint16_t readVal;
|
|
uint8_t readValLow;
|
|
uint8_t readValHigh;
|
|
|
|
readValLow = TMR0L;
|
|
readValHigh = TMR0H;
|
|
readVal = ((uint16_t)readValHigh << 8) + readValLow;
|
|
|
|
return readVal;
|
|
}
|
|
|
|
void TMR0_WriteTimer(uint16_t timerVal)
|
|
{
|
|
// Write to the Timer0 register
|
|
TMR0H = timerVal >> 8;
|
|
TMR0L = (uint8_t) timerVal;
|
|
}
|
|
|
|
void TMR0_Reload(void)
|
|
{
|
|
// Write to the Timer0 register
|
|
TMR0H = timer0ReloadVal >> 8;
|
|
TMR0L = (uint8_t) timer0ReloadVal;
|
|
}
|
|
|
|
void TMR0_ISR(void)
|
|
{
|
|
|
|
// clear the TMR0 interrupt flag
|
|
INTCONbits.TMR0IF = 0;
|
|
|
|
// reload TMR0
|
|
// Write to the Timer0 register
|
|
TMR0H = timer0ReloadVal >> 8;
|
|
TMR0L = (uint8_t) timer0ReloadVal;
|
|
|
|
if(TMR0_InterruptHandler)
|
|
{
|
|
TMR0_InterruptHandler();
|
|
}
|
|
|
|
// add your TMR0 interrupt custom code
|
|
}
|
|
|
|
|
|
void TMR0_SetInterruptHandler(void (* InterruptHandler)(void)){
|
|
TMR0_InterruptHandler = InterruptHandler;
|
|
}
|
|
|
|
void TMR0_DefaultInterruptHandler(void){
|
|
// add your TMR0 interrupt custom code
|
|
// or set custom function using TMR0_SetInterruptHandler()
|
|
}
|
|
|
|
/**
|
|
End of File
|
|
*/ |