main.c

STM8示例程序

/**
  ******************************************************************************
  * @file GPIO_IOToggle_InterruptMode\main.c
  * @brief This file contains the main function for GPIO IOToggle_PollingMode example.
  * @author STMicroelectronics - MCD Application Team
  * @version V1.0.1
  * @date 09/22/2008
  ******************************************************************************
  *
  * 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 2008 STMicroelectronics</center></h2>
  * @image html logo.bmp
  ******************************************************************************
  */

/* Includes ------------------------------------------------------------------*/
#include "stm8s_lib.h"

/**
  * @addtogroup GPIO_IOToggle_InterruptMode
  * @{
  */

/* Private typedef -----------------------------------------------------------*/

/* Private define ------------------------------------------------------------*/

/* Evalboard I/Os configuration */

#define LEDS_PORT (GPIOH)
#define LED1_PIN  (GPIO_PIN_3)
#define LED2_PIN  (GPIO_PIN_2)
#define LED3_PIN  (GPIO_PIN_1)
#define LED4_PIN  (GPIO_PIN_0)

#define BUTTON_PORT (GPIOC)
#define BUTTON_PIN  (GPIO_PIN_0)

/* Private macro -------------------------------------------------------------*/

/* Private function prototypes -----------------------------------------------*/
void Delay (u16 nCount);

/* Private functions ---------------------------------------------------------*/

void Delay(u16 nCount)
{
  /* Decrement nCount value */
  while (nCount != 0)
  {
    nCount--;
  }
}

/* Public variables ---------------------------------------------------------*/
u8 ButtonState = 0x00;

/* Public functions ----------------------------------------------------------*/

/**
  * @brief Example firmware main entry point.
  * @par Parameters:
  * None
  * @retval void None
  * @par Required preconditions:
  * None
  * @par Library functions called:
  * - GPIO_Init()
  * - EXTI_SetExtIntSensitivity()
  * - enableInterrupts()
  * - GPIO_WriteHigh()
  * - GPIO_WriteLow()
  */
void main(void)
{

  u8 Leds; /* Contains which LEDs to operate */

  

  /* Initialize I/Os in Output Mode */
  GPIO_Init(LEDS_PORT, (LED1_PIN | LED2_PIN | LED3_PIN | LED4_PIN), GPIO_MODE_OUT_PP_LOW_FAST);

  /* Initialize I/O in Input Mode with Interrupt */
  GPIO_Init(BUTTON_PORT, BUTTON_PIN, GPIO_MODE_IN_FL_IT);

  /* Initialize the Interrupt sensitivity */
  EXTI_SetExtIntSensitivity(EXTI_PORT_GPIOC, EXTI_SENSITIVITY_FALL_ONLY);

  enableInterrupts();

  /* Toggles LEDs */

  while (1)
  {
    /* Check button status */
    if (ButtonState == (u8)0x00)
    {
      Leds = (LED1_PIN | LED4_PIN);
    }
    else
    {
      Leds = (LED2_PIN | LED3_PIN);
    }
    /* LEDs ON */
    GPIO_WriteHigh(LEDS_PORT, Leds);
    Delay((u16)60000);
    Delay((u16)60000);
    /* LEDs OFF */
    GPIO_WriteLow(LEDS_PORT, Leds);
    Delay((u16)60000);
    Delay((u16)60000);
  }

}

/**
  * @brief Reports the name of the source file and the source line number where
  * the assert error has occurred.
  * 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)
  * @retval void None
  * @par Required preconditions:
  * None
  * @par Called functions:
  * None
  */
#ifdef FULL_ASSERT
void assert_failed(u8 *file, u16 line)
#else
void assert_failed(void)
#endif
{
  /* Add your own code to manage an assert error */
  /* Infinite loop */
  while (1)
  {
  }
}

/**
  * @}
  */

/******************* (C) COPYRIGHT 2008 STMicroelectronics *****END OF FILE****/