按下灯亮再按灯灭(按下时生效).doc

/* * * 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 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. * * © 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)#define 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 -*/* * 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RC CLK_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_FAST); 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);/ 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); else GPIO_WriteLow(LED_GPIO_PORT,(GPIO_Pin_TypeDef)LED_GPIO_PINS); while(GPIO_ReadInputPin(KEY_GPIO_PORT, KEY_GPIO_PINS)=0); /* * brief Delay * param nCount * 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