C++ (Cpp) Chip_MRT_IntClear Examples

Example #1

File: push_button.c Project: scintilist/MSD

// Initialize the push button
void pb_init(void){
	// Set initial values
	pbState = READY;
	pbTenths = 0;
	pbLongPress = false;
	pbShortPress = false;

	// Set up timer interrupt
	Chip_MRT_IntClear(LPC_MRT_CH(0));
	Chip_MRT_SetEnabled(LPC_MRT_CH(0));

	// Set up pin interrupt
	Chip_PININT_Init(LPC_GPIO_PIN_INT);
	Chip_Clock_EnablePeriphClock(SYSCTL_CLOCK_PININT);
	Chip_SYSCTL_PeriphReset(RESET_PININT);
	Chip_INMUX_PinIntSel(0, 0, PWR_PB_SENSE);
	Chip_PININT_ClearIntStatus(LPC_GPIO_PIN_INT, 1 << 0);
	Chip_PININT_SetPinModeLevel(LPC_GPIO_PIN_INT, 1 << 0);

	PININT_EnableLevelInt(LPC_GPIO_PIN_INT, 1 << 0);
	PININT_LowActive(LPC_GPIO_PIN_INT, 1 << 0); // Enable low first so that initial press is not detected

	NVIC_ClearPendingIRQ(PIN_INT0_IRQn);
	NVIC_EnableIRQ(PIN_INT0_IRQn);
	NVIC_SetPriority(PIN_INT0_IRQn, 0x02); // Set higher than systick, but lower than sampling
}

Example #2

File: mrt.c Project: frankzzcn/M2_SE_RTOS_Project

/* 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);
}