首页 stm32单片机的按键中断控制流水灯最简程序

stm32单片机的按键中断控制流水灯最简程序

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stm32单片机的按键中断控制流水灯最简程序stm32单片机的按键中断控制流水灯最简程序 #include"stm32f10x_lib.h" GPIO_InitTypeDef GPIO_InitStructure; NVIC_InitTypeDef NVIC_InitStructure; void NVIC_Init(NVIC_InitTypeDef* NVIC_InitStructure); void NVIC_Configuration(void); void EXTI_Configuration(void); void EXTI_Init(...

stm32单片机的按键中断控制流水灯最简程序
stm32单片机的按键中断控制流水灯最简程序 #include"stm32f10x_lib.h" GPIO_InitTypeDef GPIO_InitStructure; NVIC_InitTypeDef NVIC_InitStructure; void NVIC_Init(NVIC_InitTypeDef* NVIC_InitStructure); void NVIC_Configuration(void); void EXTI_Configuration(void); void EXTI_Init(EXTI_InitTypeDef* EXTI_InitStruct); void NVIC_Init(NVIC_InitTypeDef* NVIC_InitStruct); void Delay(vu32 nCount); int main(void) { #ifdef DEBUG debug(); #endif RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOB,ENABLE); GPIO_InitStructure.GPIO_Pin= GPIO_Pin_5 | GPIO_Pin_6 | GPIO_Pin_7 | GPIO_Pin_8; //PBµÄ5678?ÓLED2345 GPIO_InitStructure.GPIO_Mode=GPIO_Mode_Out_PP; GPIO_InitStructure.GPIO_Speed=GPIO_Speed_50MHz; GPIO_Init(GPIOB,&GPIO_InitStructure); RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA,ENABLE); GPIO_InitStructure.GPIO_Mode=GPIO_Mode_IPU; GPIO_InitStructure.GPIO_Speed=GPIO_Speed_50MHz; NVIC_Configuration(); EXTI_Configuration(); while(1) { } } void NVIC_Configuration(void) { #ifdef VECT_TAB_RAM NVIC_SetVectorTable(NVIC_VectTab_RAM,0x0); #else NVIC_SetVectorTable(NVIC_VectTab_FLASH,0x0); #endif NVIC_InitStructure.NVIC_IRQChannel = EXTI4_IRQChannel; //EXTI4Í?µÀ NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 0;//ÓÅÏÈ?? NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0; //ÏìÓ??? NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE; //Æô?? NVIC_Init(&NVIC_InitStructure); NVIC_InitStructure.NVIC_IRQChannel = EXTI9_5_IRQChannel; //Í?µÀEXTI5-9 NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 0;//ÓÅÏÈ?? NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0; //ÏìÓ??? NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE; //Æô?? NVIC_Init(&NVIC_InitStructure); } void EXTI_Configuration(void) { EXTI_InitTypeDef EXTI_InitStructure; //EXTI?õÊ????á????Òå GPIO_EXTILineConfig(GPIO_PortSourceGPIOA, GPIO_PinSource4); //PA4567×?ΪEXTIÖÐ?ÏÏß4567µÄÖÐ?ÏÔ?ÊäÈë EXTI_InitStructure.EXTI_Line = EXTI_Line4; EXTI_InitStructure.EXTI_Mode = EXTI_Mode_Interrupt; EXTI_InitStructure.EXTI_Trigger = EXTI_Trigger_Falling; EXTI_InitStructure.EXTI_LineCmd = ENABLE; EXTI_Init(&EXTI_InitStructure); GPIO_EXTILineConfig(GPIO_PortSourceGPIOA, GPIO_PinSource5); EXTI_InitStructure.EXTI_Line = EXTI_Line5; EXTI_InitStructure.EXTI_Mode = EXTI_Mode_Interrupt; EXTI_InitStructure.EXTI_Trigger = EXTI_Trigger_Falling; EXTI_InitStructure.EXTI_LineCmd = ENABLE; EXTI_Init(&EXTI_InitStructure); GPIO_EXTILineConfig(GPIO_PortSourceGPIOA, GPIO_PinSource6); EXTI_InitStructure.EXTI_Line = EXTI_Line6; EXTI_InitStructure.EXTI_Mode = EXTI_Mode_Interrupt; EXTI_InitStructure.EXTI_Trigger = EXTI_Trigger_Falling; EXTI_InitStructure.EXTI_LineCmd = ENABLE; EXTI_Init(&EXTI_InitStructure); GPIO_EXTILineConfig(GPIO_PortSourceGPIOA, GPIO_PinSource7); EXTI_InitStructure.EXTI_Line = EXTI_Line7; EXTI_InitStructure.EXTI_Mode = EXTI_Mode_Interrupt; EXTI_InitStructure.EXTI_Trigger = EXTI_Trigger_Falling; EXTI_InitStructure.EXTI_LineCmd = ENABLE; EXTI_Init(&EXTI_InitStructure); } void Delay(vu32 nCount) { for(;nCount!=0;nCount--); } ÖÐ?Ï?þÎñ?ÌÐòÈçÏÂ?º ?âÀïÃæÒªÌîÐ?µÄ?ÌÐòÈçÏÂ(Ò??ÍÊÇÖÐ?Ï?þÎñº?Êý) void EXTI9_5_IRQHandler(void) { if(EXTI_GetITStatus(EXTI_Line5) == SET) { EXTI_ClearITPendingBit(EXTI_Line5); //ÇåÖÐ?Ï EXTI_ClearFlag( EXTI_Line5); //ÇåÖÐ?Ï?êÖ? GPIO_SetBits(GPIOB,GPIO_Pin_6); Delay(2000000); //ÑÓÊ? GPIO_ResetBits(GPIOB,GPIO_Pin_6);//µãÁÁLED3 } if(EXTI_GetITStatus(EXTI_Line6) == SET) { EXTI_ClearITPendingBit(EXTI_Line6); EXTI_ClearFlag( EXTI_Line6); GPIO_SetBits(GPIOB,GPIO_Pin_7); Delay(2000000); GPIO_ResetBits(GPIOB,GPIO_Pin_7); } if(EXTI_GetITStatus(EXTI_Line7) == SET) { EXTI_ClearITPendingBit(EXTI_Line7); EXTI_ClearFlag( EXTI_Line7); GPIO_SetBits(GPIOB,GPIO_Pin_5); Delay(2000000); GPIO_ResetBits(GPIOB,GPIO_Pin_5); } } void EXTI4_IRQHandler(void) { if(EXTI_GetITStatus(EXTI_Line4) == SET) { EXTI_ClearITPendingBit(EXTI_Line4); EXTI_ClearFlag( EXTI_Line4); GPIO_SetBits(GPIOB,GPIO_Pin_8); Delay(2000000); GPIO_ResetBits(GPIOB,GPIO_Pin_8); } }
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