原创 stm32 按键驱动

/**
  ******************************************************************************
  * @file    Project/Template/main.c
  * @author  MCD Application Team
  * @version V3.0.0
  * @date    04/06/2009
  * @brief   Main program body
  ******************************************************************************
  * @copy
  *
  * THE PRESENT FIRMWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS
  * WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE
  * TIME. AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY
  * DIRECT, INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING
  * FROM THE CONTENT OF SUCH FIRMWARE AND/OR THE USE MADE BY CUSTOMERS OF THE
  * CODING INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS.
  *
  * <h2><center>&copy; COPYRIGHT 2009 STMicroelectronics</center></h2>
  */

/* Includes ------------------------------------------------------------------*/
#include "stm32f10x.h"
#include "stm32f10x_conf.h"
#include "stm32f10x_it.h"

/** @addtogroup Template_Project
  * @{
  */

/* Private typedef -----------------------------------------------------------*/
/* Private define ------------------------------------------------------------*/
/* Private macro -------------------------------------------------------------*/
/* Private variables ---------------------------------------------------------*/
/* Private function prototypes -----------------------------------------------*/
/* Private functions ---------------------------------------------------------*/

/**
  * @brief  Main program.
  * @param  None
  * @retval : None
  */
int main(void)
{
  /* Setup STM32 system (clock, PLL and Flash configuration) */
  SystemInit();
  /* Add your application code here
     */
  RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOC,ENABLE);
  GPIO_InitTypeDef GPIO_InitStructure;
  GPIO_InitStructure.GPIO_Pin = GPIO_Pin_0|GPIO_Pin_1|GPIO_Pin_2|GPIO_Pin_3;
  GPIO_InitStructure.GPIO_Speed = GPIO_Speed_10MHz;
  GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IPU;
  GPIO_Init(GPIOC, &GPIO_InitStructure);
 
  GPIO_InitStructure.GPIO_Pin&=(~GPIO_Pin_3);
  RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA,ENABLE);
  GPIO_InitStructure.GPIO_Pin=GPIO_Pin_1|GPIO_Pin_2;
  GPIO_InitStructure.GPIO_Speed=GPIO_Speed_10MHz;
  GPIO_InitStructure.GPIO_Mode=GPIO_Mode_Out_PP;
  GPIO_Init(GPIOA,&GPIO_InitStructure);

  /* Infinite loop */
  while (1)
  {
    u8 ReadValue;
    ReadValue = GPIO_ReadInputDataBit(GPIOC, GPIO_Pin_0);
    if(ReadValue==0x00)
      GPIO_SetBits(GPIOA,GPIO_Pin_1);
    int x=0xfffff;
    while(x--);
    GPIO_ResetBits(GPIOA,GPIO_Pin_1);

  }
}

#ifdef  USE_FULL_ASSERT

/**
  * @brief  Reports the name of the source file and the source line number
  *   where the assert_param error has occurred.
  * @param file: pointer to the source file name
  * @param line: assert_param error line source number
  * @retval : None
  */
void assert_failed(uint8_t* file, uint32_t line)
{
  /* User can add his own implementation to report the file name and line number,
     ex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */

  /* Infinite loop */
  while (1)
  {
   
  }
}
#endif

/**
  * @}
  */

/******************* (C) COPYRIGHT 2009 STMicroelectronics *****END OF FILE****/