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mytimer.c
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#include "mytimer.h"
void MYTIMER_init(int timerNo)
{
// we don't have to do anything.
}
void MYTIMER_enable(int timerNo)
{
if (timerNo == 2) {
MYTIMER2->control |= MYTIMER_ENABLE_MASK;
} else {
MYTIMER->control |= MYTIMER_ENABLE_MASK;
}
}
void MYTIMER_disable(int timerNo)
{
if (timerNo == 2) {
MYTIMER2->control &= 0xFFFFFFFE;
} else {
MYTIMER->control &= 0xFFFFFFFE;
}
}
void MYTIMER_setOverflowVal(int timerNo, uint32_t value)
{
if (timerNo == 2) {
uint32_t * timerAddr = (uint32_t*)(MYTIMER2);
*timerAddr = value; // overflowReg is at offset 0x0
} else {
uint32_t * timerAddr = (uint32_t*)(MYTIMER);
*timerAddr = value; // overflowReg is at offset 0x0
}
}
uint32_t MYTIMER_getCounterVal(int timerNo)
{
if (timerNo == 2) {
uint32_t * timerAddr = (uint32_t*)(MYTIMER2);
return *(timerAddr+1); // counterReg is at offset 0x4
} else {
uint32_t * timerAddr = (uint32_t*)(MYTIMER);
return *(timerAddr+1); // counterReg is at offset 0x4
}
}
/**
* Enable all interrupts
*/
void MYTIMER_enable_allInterrupts(int timerNo)
{
if (timerNo == 2) {
MYTIMER2->control |= 0x00000002;
} else {
MYTIMER->control |= 0x00000002;
}
}
/**
* Disable all interrupts
*/
void MYTIMER_disable_allInterrupts(int timerNo)
{
if (timerNo == 2) {
MYTIMER2->control &= 0xFFFFFFFD;
} else {
MYTIMER->control &= 0xFFFFFFFD;
}
}
/**
*
* Enable compare interrupt
*/
void MYTIMER_enable_compareInt(int timerNo)
{
if (timerNo == 2) {
MYTIMER2->control |= 0x00000004;
} else {
MYTIMER->control |= 0x00000004;
}
}
/**
* Disable compare interrupt
*/
void MYTIMER_disable_compareInt(int timerNo){
if (timerNo == 2) {
MYTIMER->control &= 0xFFFFFFFB;
} else {
MYTIMER->control &= 0xFFFFFFFB;
}
}
/**
* Set Compare value
*/
void MYTIMER_setCompareVal(int timerNo, uint32_t compare)
{
if (timerNo == 2) {
uint32_t * compRegAddr = MYTIMER2->compare;
*compRegAddr = compare;
} else {
uint32_t * compRegAddr = MYTIMER->compare;
*compRegAddr = compare;
}
}
/**
* Enable overflow interrupt
*/
void MYTIMER_enable_overflowInt(int timerNo)
{
if (timerNo == 2) {
MYTIMER2->control |= 0x00000008;
} else {
MYTIMER->control |= 0x00000008;
}
}
/**
* Disable overflow interrupt
*/
void MYTIMER_disable_overflowInt(int timerNo)
{
if (timerNo == 2) {
MYTIMER2->control |= 0xFFFFFFF7;
} else {
MYTIMER->control |= 0xFFFFFFF7;
}
}
/**
* Interrupt status
*/
uint32_t MYTIMER_getInterrupt_status(int timerNo){
if (timerNo == 2) {
uint32_t * compRegAddr = MYTIMER2->interrupt_status;
return *compRegAddr;
} else {
uint32_t * compRegAddr = MYTIMER->interrupt_status;
return *compRegAddr;
}
}
/**
* Enable Capture
*/
void MYTIMER_enable_capture(int timerNo){
if (timerNo == 2) {
MYTIMER2->control |= 0x0000020;
} else {
MYTIMER->control |= 0x0000020;
}
}
/**
* Disable Capture
*/
void MYTIMER_disable_capture(int timerNo){
if (timerNo == 2) {
MYTIMER->control &= 0xFFFFFFDF;
} else {
MYTIMER->control &= 0xFFFFFFDF;
}
}
/**
* Read the synchronous capture value
*/
uint32_t MYTIMER_get_sync_capture(int timerNo){
if (timerNo == 2) {
uint32_t * compRegAddr = MYTIMER2->sync_capture;
return *compRegAddr;
} else {
uint32_t * compRegAddr = MYTIMER->sync_capture;
return *compRegAddr;
}
}
/**
* Read the asynchronous capture value
*/
uint32_t MYTIMER_get_async_capture(int timerNo){
if (timerNo == 2) {
uint32_t * compRegAddr = MYTIMER2->async_capture;
return *compRegAddr;
} else {
uint32_t * compRegAddr = MYTIMER->async_capture;
return *compRegAddr;
}
}