stm8s按键中断控制led.ppt

【实例截图】

//main函数*******************************

/* Includes ------------------------------------------------------------------*/
#include "stm8s.h"
//#include "stm8s_gpio.h"
//#include "stm8s_exti.h"

/* Private defines -----------------------------------------------------------*/
/* Private function prototypes -----------------------------------------------*/
/* Private functions ---------------------------------------------------------*/
void Delay(uint16_t nCount)
{
  /* Decrement nCount value */
  while (nCount != 0)
  {   
    nCount--;
  }
}
void main(void)
{
  /* Initialize I/Os in Output Mode */
  GPIO_Init(GPIOB, GPIO_PIN_4, GPIO_MODE_OUT_PP_HIGH_FAST);
  GPIO_Init(GPIOC, GPIO_PIN_3, GPIO_MODE_IN_PU_IT);
  EXTI_SetExtIntSensitivity(EXTI_PORT_GPIOC, EXTI_SENSITIVITY_FALL_ONLY);
  enableInterrupts();
  while (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(u8* file, u32 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 2011 STMicroelectronics *****END OF FILE****/