/**
* @brief MRT example main function
* @return Status (This function will not return)
*/
int main(void)
{
int mrtch;
/* Generic Initialization */
SystemCoreClockUpdate();
Board_Init();
DEBUGSTR("LPC15xx MRT Example \r\n");
/* MRT Initialization and disable all timers */
Chip_MRT_Init();
for (mrtch = 0; mrtch < MRT_CHANNELS_NUM; mrtch++) {
Chip_MRT_SetDisabled(Chip_MRT_GetRegPtr(mrtch));
}
/* Enable the interrupt for the MRT */
NVIC_EnableIRQ(MRT_IRQn);
/* Enable timers 0 and 1 in repeat mode with different rates */
setupMRT(0, MRT_MODE_REPEAT, 2);/* 2Hz rate */
setupMRT(1, MRT_MODE_REPEAT, 5);/* 5Hz rate */
/* Enable timer 2 in single one mode with the interrupt restarting the
timer */
setupMRT(2, MRT_MODE_ONESHOT, 7); /* Will fire in 1/7 seconds */
/* All processing and MRT reset in the interrupt handler */
while (1) {
__WFI();
}
return 0;
}
/**
* @brief MRT example main function
* @return Status (This function will not return)
*/
int main(void)
{
int mrtch;
static uint32_t mSecShot;
/* Generic Initialization */
SystemCoreClockUpdate();
Board_Init();
DEBUGSTR("LPC8xx MRT Example \r\n");
/* MRT Initialization and disable all timers */
Chip_MRT_Init();
for (mrtch = 0; mrtch < MRT_CHANNELS_NUM; mrtch++) {
Chip_MRT_SetDisabled(Chip_MRT_GetRegPtr(mrtch));
}
/* Enable the interrupt for the MRT */
NVIC_EnableIRQ(MRT_IRQn);
/* Enable timers 0 and 1 in repeat mode with different rates */
setupMRT(0, MRT_MODE_REPEAT, 5);/* 5Hz rate */
setupMRT(1, MRT_MODE_REPEAT, 4);/* 4Hz rate */
/* Enable timer 2 in single one mode with the interrupt restarting the
timer */
setupMRT(2, MRT_MODE_ONESHOT, 500); /* Will fire in (1/500) seconds */
mSecShot = 100;
Board_LED_Set(0, false);
/* Timer 3 processing loop - places timer 3 into one shot mode whenever it
has been handled in the IRQ handler */
while (1) {
if (!t3Fired) {
t3Fired = true;
setupMRT(3, MRT_MODE_ONESHOT, mSecShot);/* Will fire in (1/mSecShot) seconds */
Board_LED_Toggle(2);
mSecShot += 10;
if (mSecShot > 1000) {
mSecShot = 100;
}
}
__WFI();
}
return 0;
}
/**
* @brief Handle interrupt from MRT
* @return Nothing
*/
void MRT_IRQHandler(void)
{
uint32_t int_pend;
/* Get interrupt pending status for all timers */
int_pend = Chip_MRT_GetIntPending();
Chip_MRT_ClearIntPending(int_pend);
/* Channel 0 and 1 are periodic, toggle on either interrupt */
if (int_pend & (MRTn_INTFLAG(0) | MRTn_INTFLAG(1))) {
Board_LED_Toggle(0);
t01++;
}
/* Channel 2 is single shot, reset it here */
if (int_pend & (MRTn_INTFLAG(2))) {
setupMRT(2, MRT_MODE_ONESHOT, 500); /* Will fire in (1/500) seconds */
Board_LED_Toggle(1);
t2++;
}
/* Channel 3 is single shot, set flag so background loop resets it */
if (int_pend & (MRTn_INTFLAG(3))) {
t3Fired = false;
t3++;
}
}
void Board::init()
{
initSwitchMatrix();
initIOCON();
setupSysClock();
SystemCoreClockUpdate();
setupMRT(SystemCoreClock);
setupSysTick();
GPIOInit();
}
/**
* @brief Handle interrupt from MRT
* @return Nothing
*/
void MRT_IRQHandler(void)
{
uint32_t int_pend;
/* Get and clear interrupt pending status for all timers */
int_pend = Chip_MRT_GetIntPending();
Chip_MRT_ClearIntPending(int_pend);
/* Channel 0 */
if (int_pend & MRTn_INTFLAG(0)) {
Board_LED_Toggle(0);
}
/* Channel 1 */
if (int_pend & MRTn_INTFLAG(1)) {
Board_LED_Toggle(1);
}
/* Channel 2 is single shot, reset it here */
if (int_pend & (MRTn_INTFLAG(2))) {
setupMRT(2, MRT_MODE_ONESHOT, 2); /* Will fire in 0.5 seconds */
Board_LED_Toggle(2);
}
}
