Bai1.c

/*******************************************************************************
 *
 * Copyright (c) 2020
 * Lumi, JSC.
 * All Rights Reserved
 *
 * Description: Lab2.1
 *
 * Author: Developer embedded team
 *
 * Last Changed By:  $Author: HoangNH $
 * Revision:         $Revision: 1.0 $
 * Last Changed:     $Date: 10/7/2020 $
 *
 ******************************************************************************/

#include "stm32f401re_rcc.h"
#include "stm32f401re_gpio.h"

//function declaration---------------------------------------------------------
static void LedControl_SetStatus(GPIO_TypeDef * GPIOx, uint8_t GPIO_PIN, uint8_t Status);
static void Delay(uint32_t ms);
static uint8_t ButtonRead_Status(GPIO_TypeDef * GPIOx, uint32_t GPIO_PIN);
static void Button_Init(void);
static void Led_Init(void);
static void AppInitCommon(void);

//-----------------------------------------------------------------------------
int main(void)
{
    AppInitCommon();

    while(1)
    {
        //Turn on the Led when pressing the button----------------------------
        if (ButtonRead_Status(BUTTON_GPIO_PORT, BUTTON_PIN13) == GPIO_PIN_LOW)
        {
            Delay(5);
            LedControl_SetStatus(LED_GPIO_PORT, LED_PIN5, GPIO_PIN_SET);
        }
        //Turn off the led when pressing the button---------------------------
        else
        {
            LedControl_SetStatus(LED_GPIO_PORT, LED_PIN5, GPIO_PIN_RESET);
        }
    }
}

/**
 * @func   Initializes
 * @brief  Initializes All Peripheral
 * @param  None
 * @retval None
 */
static void AppInitCommon(void)
{
    //System Init--------------------------------------------------------------
    SystemCoreClockUpdate();

    //Button Init--------------------------------------------------------------
    Button_Init();

    //Led Init-----------------------------------------------------------------
    Led_Init();
}

/**
 * @func   LedControl_SetStatus
 * @brief  Control Turn on or Turn off Led
 * @param  None
 * @retval None
 */
static void LedControl_SetStatus(GPIO_TypeDef * GPIOx, uint8_t GPIO_PIN, uint8_t Status)
{
    //Set bit in BSRR Registers------------------------------------------------
    if (Status == GPIO_PIN_SET)
    {
        GPIOx->BSRR |= 1 << GPIO_PIN;
    }
    //Reset bit in BSRR Registers----------------------------------------------
    else if (Status == GPIO_PIN_RESET)
    {
        GPIOx->BSRR |= 1 << (GPIO_PIN + 16);
    }
}

/**
 * @func   ButtonRead_Status
 * @brief  Read Status Button
 * @param  None
 * @retval None
 */
static uint8_t ButtonRead_Status(GPIO_TypeDef * GPIOx, uint32_t GPIO_PIN)
{
    uint32_t Read_Pin;

    //Read bit in IDR Registers------------------------------------------------
    Read_Pin = (GPIOx->IDR) >> GPIO_PIN;
    Read_Pin = Read_Pin & 0x01;

    return Read_Pin;
}

/**
 * @func   Delay
 * @brief  Delay Time
 * @param  None
 * @retval None
 */
static void Delay(uint32_t ms)
{
    uint32_t i, j;
    for (i = 0 ; i < ms ; i ++)
    {
        for (j = 0; j < 5000; j++) {;}
    }
}

/**
 * @func   Led_Init
 * @brief  Initializes GPIO Use Led
 * @param  None
 * @retval None
 */
static void Led_Init(void)
{
    //Declare type variable GPIO Struct----------------------------------------
    GPIO_InitTypeDef GPIO_InitStructure;

    //Enable Clock GPIOA-------------------------------------------------------
    RCC_AHB1PeriphClockCmd(LEDControl_SetClock, ENABLE);

    //Choose Pin Led-----------------------------------------------------------
    GPIO_InitStructure.GPIO_Pin = LED_GPIO_PIN;

    //Choose Pin Led as Out----------------------------------------------------
    GPIO_InitStructure.GPIO_Mode = GPIO_Mode_OUT;

    //Choose Speed Pin---------------------------------------------------------
    GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;

    //Select type--------------------------------------------------------------
    GPIO_InitStructure.GPIO_OType = GPIO_OType_PP;

    //Select status------------------------------------------------------------
    GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_DOWN ;

    //The function initializes all of the above values-------------------------
    GPIO_Init(LED_GPIO_PORT, &GPIO_InitStructure);
}

/**
 * @func   ButtonInit
 * @brief  Initializes GPIO Use Button
 * @param  None
 * @retval None
 */
static void Button_Init(void)
{
    //Declare type variable GPIO Struc-----------------------------------------
    GPIO_InitTypeDef GPIO_InitStructure ;

    //Enable Clock GPIOC-------------------------------------------------------
    RCC_AHB1PeriphClockCmd(BUTTONControl_SetClock, ENABLE);

    //Choose Pin BUTTON--------------------------------------------------------
    GPIO_InitStructure.GPIO_Pin = BUTTON_GPIO_PIN;

    //Choose Pin Led as Input--------------------------------------------------
    GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN;

    //Choose Speed Pin---------------------------------------------------------
    GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;

    //Select status------------------------------------------------------------
    GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_UP ;

    //The function initializes all of the above values-------------------------
    GPIO_Init(BUTTON_GPIO_PORT, &GPIO_InitStructure);
}

/* END_FILE */