《按下灯亮再按灯灭(按下时生效)》由会员分享，可在线阅读，更多相关《按下灯亮再按灯灭(按下时生效)（4页珍藏版）》请在金锄头文库上搜索。
1、/* file GPIO_Togglemain.c* author MCD Application Team* version V2.0.1* date 18-November-2011* brief This file contains the main function for GPIO Toggle example.* attention* THE PRESENT FIRMWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS* WITH CODING INFORMATION REGARDING THEIR PRODUCTS
2、 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 CONNECTI
3、ON WITH THEIR PRODUCTS.* COPYRIGHT 2011 STMicroelectronics*/ /* Includes -*/ #include “stm8s.h“/* addtogroup GPIO_Toggle* */* Private typedef -*/ /* Private define -*/ /* Evalboard I/Os configuration */#define LED_GPIO_PORT (GPIOD) #define LED_GPIO_PINS (GPIO_PIN_2)#define KEY_GPIO_PORT (GPIOA) #def
4、ine KEY_GPIO_PINS (GPIO_PIN_3)unsigned char temp=0; /* Private macro -*/ /* Private variables -*/ /* Private function prototypes -*/ void delay_us(unsigned int a) while (a-); void delay_ms(unsigned int s) unsigned int t0;while (s-)for(t0=0;t0150;t0+); /* Private functions -*/ /* Public functions -*/
5、* brief Main program.* param None* retval None*/ void DelayUs2x(unsigned char t);/函数声明 void main(void) CLK_HSICmd(ENABLE);/开始内部高频 RCCLK_HSIPrescalerConfig(CLK_PRESCALER_HSIDIV2);/不分频/* Initialize I/Os in Output Mode */GPIO_Init(LED_GPIO_PORT, (GPIO_Pin_TypeDef)LED_GPIO_PINS, GPIO_MODE_OUT_PP_HIGH_FA
6、ST);GPIO_Init(KEY_GPIO_PORT, (GPIO_Pin_TypeDef)KEY_GPIO_PINS, GPIO_MODE_IN_FL_NO_IT);(KEY_GPIO_PORT, KEY_GPIO_PINS)=1;while (1)if(!GPIO_ReadInputPin(KEY_GPIO_PORT, KEY_GPIO_PINS)delay_ms(10); if(!GPIO_ReadInputPin(KEY_GPIO_PORT, KEY_GPIO_PINS) / /while(!GPIO_ReadInputPin(KEY_GPIO_PORT, KEY_GPIO_PINS
7、); /temp=temp; /GPIO_WriteReverse(GPIO_TypeDef* GPIOx, GPIO_Pin_TypeDef PortPins)/if(temp=0)GPIO_WriteHigh(LED_GPIO_PORT,(GPIO_Pin_TypeDef)LED_GPIO_PINS);elseGPIO_WriteLow(LED_GPIO_PORT,(GPIO_Pin_TypeDef)LED_GPIO_PINS);while(GPIO_ReadInputPin(KEY_GPIO_PORT, KEY_GPIO_PINS)=0); /* brief Delay* param n
8、Count* retval None*/ #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 %drn“, file, line) */* Infinite loop */while (1) #endif/* */* (C) COPYRIGHT 2011 STMicroelectronics *END OF FILE*/
