main.c

STM8示例程序

/**
  ******************************************************************************
  * @file EXTI_InterruptPriority\main.c
  * @brief This file contains the main function for the EXTI Interrupt Priority 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"
#include "main.h"

/**
  * @addtogroup EXTI_InterruptPriority
  * @{
  */

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

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

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

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

/* Private function prototypes -----------------------------------------------*/

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

/**
  * @brief Validation firmware main entry point.
  * @par Parameters:
  * None
  * @retval void None
  * @par Required preconditions:
  * None
  * @par Library functions called:
  * - GPIO_Init()
  * - EXTI_SetExtIntSensitivity()
  * - enableInterrupts()
  */
void main(void)
{
  /* Initialize I/Os in Output Mode for LEDs */
  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 for Joystick */
  GPIO_Init(JOYSTICK_PORT, JOYSTICK_LEFT_PIN|JOYSTICK_RIGHT_PIN|JOYSTICK_UP_PIN|JOYSTICK_DOWN_PIN,GPIO_MODE_IN_FL_IT);
  
  GPIO_Init(JOYSTICK_SEL_PORT, JOYSTICK_SEL_PIN, GPIO_MODE_IN_FL_IT);
  
  /* Initialize the Interrupt sensitivity */
  EXTI_SetExtIntSensitivity(EXTI_PORT_GPIOB, EXTI_SENSITIVITY_FALL_ONLY);
  EXTI_SetTLISensitivity(EXTI_TLISENSITIVITY_FALL_ONLY);
  
  GPIO_WriteHigh(LEDS_PORT, (LED1_PIN | LED2_PIN | LED3_PIN | LED4_PIN));
  
  enableInterrupts();

  while (1)
  {
    /* The LED toggles in the interrupt routines */
  }

}

/**
  * @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****/