llwu_MK22F51212.c File Reference

#include <stdio.h>
#include "fsl_uart_hal.h"
#include "clock/fsl_clock_manager.h"
#include "gpio_pins.h"
#include "low_power_demo.h"

Functions
void	llwu_configure (uint32_t pinEn, uint8_t riseFall, uint8_t moduleEn)
	Set up the LLWU for wakeup the MCU from LLS and VLLSx modes from the selected pin or module. More...

Variables
uint8_t	uartEnabled

Function Documentation

void llwu_configure	(	uint32_t	pinEn,
		uint8_t	riseFall,
		uint8_t	moduleEn
	)

Parameters

pin_en	- unsigned integer, bit position indicates the pin is enabled. More than one bit can be set to enable more than one pin at a time.
rise_fall	- 0x00 = External input disabled as wakeup 0x01 - External input enabled as rising edge detection 0x02 - External input enabled as falling edge detection 0x03 - External input enablge as any edge detection
module_en	- unsigned char, bit position indicates the module is enabled. More than one bit can be set to enabled more than one module

for example: if bit 0 and 1 need to be enabled as rising edge detect call this routine with pin_en = 0x0003 and rise_fall = 0x02

Note: to set up one set of pins for rising and another for falling, 2 calls to this function are required, 1st for rising then the second for falling.

Variable Documentation

uint8_t uartEnabled

indicates whether the uart port is currently enabled or not