/**
* @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;
}
/* Setup a timer for a periodic (repeat mode) rate */
static void setupMRT(uint8_t ch, MRT_MODE_T mode, uint32_t rate)
{
LPC_MRT_CH_T *pMRT;
/* Get pointer to timer selected by ch */
pMRT = Chip_MRT_GetRegPtr(ch);
/* Setup timer with rate based on MRT clock */
Chip_MRT_SetInterval(pMRT, (Chip_Clock_GetSystemClockRate() / rate) |
MRT_INTVAL_LOAD);
/* Timer mode */
Chip_MRT_SetMode(pMRT, mode);
/* Clear pending interrupt and enable timer */
Chip_MRT_IntClear(pMRT);
Chip_MRT_SetEnabled(pMRT);
}
