/*
* Copyright (c) 2015, Freescale Semiconductor, Inc.
* Copyright 2016-2017 NXP
* All rights reserved.
*
* SPDX-License-Identifier: BSD-3-Clause
*/
#include "board.h"
#include "fsl_debug_console.h"
#include "fsl_gpio.h"
#include "pin_mux.h"
#include "clock_config.h"
/*******************************************************************************
* Definitions
******************************************************************************/
#define EXAMPLE_LED_GPIO BOARD_USER_LED_GPIO
#define EXAMPLE_LED_GPIO_PIN BOARD_USER_LED_GPIO_PIN
#define EXAMPLE_DELAY_COUNT 8000000
/*******************************************************************************
* Prototypes
******************************************************************************/
/*!
* @brief delay a while.
*/
void delay(void);
/*******************************************************************************
* Variables
******************************************************************************/
/* The PIN status */
volatile bool g_pinSet = false;
/*******************************************************************************
* Code
******************************************************************************/
void delay(void)
{
volatile uint32_t i = 0;
for (i = 0; i < EXAMPLE_DELAY_COUNT; ++i)
{
__asm("NOP"); /* delay */
}
}
/*!
* @brief Main function
*/
int main(void)
{
/* Define the init structure for the output LED pin*/
gpio_pin_config_t led_config = {kGPIO_DigitalOutput, 0, kGPIO_NoIntmode};
/* Board pin, clock, debug console init */
BOARD_ConfigMPU();
BOARD_InitPins();
BOARD_BootClockRUN();
BOARD_InitDebugConsole();
/* Print a note to terminal. */
PRINTF("\r\n GPIO Driver example\r\n");
PRINTF("\r\n The LED is blinking.\r\n");
/* Init output LED GPIO. */
GPIO_PinInit(EXAMPLE_LED_GPIO, EXAMPLE_LED_GPIO_PIN, &led_config);
while (1)
{
delay();
#if (defined(FSL_FEATURE_IGPIO_HAS_DR_TOGGLE) && (FSL_FEATURE_IGPIO_HAS_DR_TOGGLE == 1))
GPIO_PortToggle(EXAMPLE_LED_GPIO, 1u << EXAMPLE_LED_GPIO_PIN);
#else
if (g_pinSet)
{
GPIO_PinWrite(EXAMPLE_LED_GPIO, EXAMPLE_LED_GPIO_PIN, 0U);
g_pinSet = false;
}
else
{
GPIO_PinWrite(EXAMPLE_LED_GPIO, EXAMPLE_LED_GPIO_PIN, 1U);
g_pinSet = true;
}
#endif /* FSL_FEATURE_IGPIO_HAS_DR_TOGGLE */
}
}
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