STM32單片機LED燈按鍵中斷顯示 proteus仿真
上周做的用LED燈按鍵中斷顯示
從此個實驗中可以學習中斷的使用，用的是標準庫函數(shù)
粗略的顯示了一下，有些不足，希望大家能夠給予指導并相互學習。
仿真原理圖如下（proteus仿真工程文件可到本帖附件中下載）
單片機源程序如下:
- //#include "main.h"
- #include "stm32f10x.h"
- void LED_Config(void);
- void KEY_Config(void);
- void NVIC_Configuration(void);
- void EXTI9_5_IRQHandler(void);
- int main(void)
- {
- NVIC_Configuration();
- LED_Config();
- KEY_Config();
- GPIO_ResetBits(GPIOB,GPIO_Pin_8);
- while(1)
- {
-
- }
- }
- void LED_Config(void)
- {
-
- GPIO_InitTypeDef GPIO_InitStructure;
- RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOB, ENABLE);
- GPIO_InitStructure.GPIO_Pin = GPIO_Pin_8;
- GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
- GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP;
- GPIO_Init(GPIOB, &GPIO_InitStructure);
- }
- void KEY_Config(void)
- {
- GPIO_InitTypeDef GPIO_InitStructure;
- EXTI_InitTypeDef EXTI_InitStructure;
- RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOB | RCC_APB2Periph_AFIO, ENABLE);
- GPIO_InitStructure.GPIO_Pin = GPIO_Pin_6;
- GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IPU;
- GPIO_Init(GPIOB, &GPIO_InitStructure);
-
- GPIO_EXTILineConfig(GPIO_PortSourceGPIOB, 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);
- }
- void NVIC_Configuration(void)
- {
-
- NVIC_InitTypeDef NVIC_InitStructure;
- NVIC_PriorityGroupConfig(NVIC_PriorityGroup_1);
- NVIC_InitStructure.NVIC_IRQChannel = EXTI9_5_IRQn;
- NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 0;
- NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0;
- NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
- NVIC_Init(&NVIC_InitStructure);
- }
- void EXTI9_5_IRQHandler(void)
- {
- if(EXTI_GetITStatus(EXTI_Line6) != RESET)
- {
- GPIO_WriteBit(GPIOB, GPIO_Pin_8,
- (BitAction)((1-GPIO_ReadOutputDataBit(GPIOB, GPIO_Pin_8))));
- EXTI_ClearITPendingBit(EXTI_Line6);
- }
- }
所有資料51hei提供下載:
按鍵中斷LED.7z
(286.54 KB, 下載次數(shù): 145)
2018-12-18 17:45 上傳
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