main.c

/**
 ******************************************************************************
 * @file           : main.c
 * @author         : Auto-generated by STM32CubeIDE
 * @brief          : Main program body
 ******************************************************************************
 * @attention
 *
 * Copyright (c) 2023 STMicroelectronics.
 * All rights reserved.
 *
 * This software is licensed under terms that can be found in the LICENSE file
 * in the root directory of this software component.
 * If no LICENSE file comes with this software, it is provided AS-IS.
 *
 ******************************************************************************
 */

/*******************************************
*  AUTHOR IDENTITY
*
*  Initials    Name
*  --------    ----------------------------
*  ANR	       Aditya
********************************************/

#include <stdint.h>
#include <string.h>
#include "stm32f030xx.h"
#include "stm32f030xx_gpio_driver.h"


#if !defined(__SOFT_FP__) && defined(__ARM_FP)
  #warning "FPU is not initialized, but the project is compiling for an FPU. Please initialize the FPU before use."
#endif

int main(void)
{
	/* The following is GPIO LED configuration */
    GPIO_Handle_t GpioLed;

    /* Clearing the local structure so as to not initialize garbage values to GPIO peripheral */
    memset(&GpioLed, 0u, sizeof(GpioLed));

    GpioLed.pGPIOx = GPIOA;

    GpioLed.GPIO_PinConfig.GPIO_PinNumber = GPIO_PIN5;

    GpioLed.GPIO_PinConfig.GPIO_PinMode = GPIO_MODE_OUTPUT;

    GpioLed.GPIO_PinConfig.GPIO_PinSpeed = GPIO_HI_SPEED;

    GpioLed.GPIO_PinConfig.GPIO_PinPuPdControl = GPIO_NOPUPD;

    GpioLed.GPIO_PinConfig.GPIO_PinOPType = GPIO_PUSH_PULL;

    // Enable Clock Control
    GPIO_PClockControl (GPIOA, ENABLE);

    // GPIO initialization
    GPIO_Init (&GpioLed);

    /* Writing a '0' to the LED GPIO pin initially */
    GPIO_WriteToOutputPin (GPIOA, GPIO_PIN5, GPIO_PIN_RESET);

    /* Following is the GPIO button configuration */
    GPIO_Handle_t GpioButton;

    /* Clearing the local structure so as to not initialize garbage values to GPIO peripheral */
    memset(&GpioButton, 0u, sizeof(GpioButton));

    GpioButton.pGPIOx = GPIOC;

    GpioButton.GPIO_PinConfig.GPIO_PinNumber = GPIO_PIN13;

    GpioButton.GPIO_PinConfig.GPIO_PinMode = GPIO_MODE_IT_FT;

    GpioButton.GPIO_PinConfig.GPIO_PinSpeed = GPIO_HI_SPEED;

    GpioButton.GPIO_PinConfig.GPIO_PinPuPdControl = GPIO_PU_ONLY;

    // Enable Clock Control
    GPIO_PClockControl (GPIOC, ENABLE);

    // GPIO initialization
    GPIO_Init (&GpioButton);

    /* IRQ configurations - priority can be 0 - 3 */
    GPIO_IRQConfig(IRQ_NO_EXTI4_15, 3u, ENABLE);

    while(1);

    return 0;
}

void EXTI4_15_IRQHandler(void)
{
	/* Clearing the interrupt bit */
	GPIO_IRQHandling(GPIO_PIN13);

	/* Toggling the on board GPIO on GPIOA5 */
	GPIO_ToggleOutputPin(GPIOA, GPIO_PIN5);
}