红外遥控STM32程序

1、*stm32F103VET6红外驱动【遥控器解码实验程序】遥控器：42位编码*/*#include""#include""#include""#include""#define#define#defineIR_Hongwai_0IR_Hongwai_1GPIOE->BRR = 0x00000004GPIOE->BSRR = 0x00000004IR_Hongwai_x GPIO_ReadInputDataBit(GPIOE, GPIO_Pin_2)/红外数据低电平/红外数据高电平/读取红外电平状态#de

2、fineLED1_0GPIOD->BRR=0x00000100/LED低电平#defineLED2_0GPIOD->BRR=0x00000200#defineLED3_0GPIOD->BRR=0x00000400#defineLED4_0GPIOD->BRR=0x00000800#defineLED1_1GPIOD->BSRR;二0x00000100/LED#defineLED2_1GPIOD->BSRR;二0x00000200#defineLED3_1GPIOD->BSRR;二0x00000400#defineLED4_1GPIOD->BSRR

3、;二0x00000800高电平unsignedcharTimeByte;unsignedintIR_Tireafg4;unsignedintIR_xidwrit8=0,0,0,0,0,0,0,0;/*GPIO端口配置子函数*/voidGPIO_InitStructReadtempCmd(void)GPIO_InitTypeDefGPIO_InitStruct;=GPIO_Pin_2;/配置GPIO管脚=GPIO_Mode_IPU;/配置管脚为输入上拉=GPIO_Speed_50MHz;/配置管脚速率50MHZGPIO_Init(GPIOE,&GPIO_InitStruct);/初始化指

4、定端口=GPIO_Pin_5;=GPIO_Mode_Out_PP;/配置管脚陪推挽式输出=GPIO_Speed_50MHz;GPIO_Init(GPIOB,&GPIO_InitStruct);=GPIOPin8|GPIOPin9|GPIOPin10|GPIOPin11;=GPIO_Mode_Out_PP;=GPIO_Speed_50MHz;GPIO_Init(GPIOD,&GPIO_InitStruct);/*配置外设时钟子函数* /voidRCC_APB2PeriphReadtempyCmd(void)RCC_APB2PeriphClockCmd(RCC_APB2Periph

5、_GPIOB,ENABLE);/打开GPIOB夕卜设时钟RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOE,ENABLE);/打开GPIOE夕卜设时钟RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOD,ENABLE);/打开GPIO3卜设时钟RCC_APB2PeriphClockCmd(RCC_APB2Periph_AFIO,ENABLE);/打开AFIO复用功能夕卜设时钟RCC_APB1PeriphClockCmd(RCC_APB1Periph_TIM2,ENABLE);/* 计算低脉宽持续时间Count1*10us*

6、/unsignedintIR_HongwaiRead_LSB_Cmd()unsignedintCount1=0;/定义时间变量IR_Hongwai_0;/红外数据低电平do/进入循环体Count1+;/时间变量加1Delay_10us(1);/延时10uswhile(IR_Hongwai_x=0);判断条件如果读出来的红外数据为高电平跳出循环体return(Count1);/返回时间变量积数/* 计算高脉宽持续时间Count2*10us* /unsignedintIR_HongwaiRead_MSB_Cmd()unsignedintCount2=0;/定义时间变量IR_Hongwai_1;/红

7、外数据高电平do/进入循环体Count2+;/时间变量加1Delay_10us；/延时10uswhile(IR_Hongwai_x=1);判断条件如果读出来的红外数据为低电平跳出循环体return(Count2);/* 函数主体*/intmain(void)SystemInit();/初始化系统时钟进入72M主频SYSTICK_InitStructReadTCmd();/初始化SysTick配置器寄存器RCC_APB2PeriphReadtempyCmd();/初始化外设时钟配置寄存器GPIO_InitStructReadtempCmd();/初始化GPIO端口配置寄存器EXTI_InitSt

8、ructReadtempCmd();/初始化EXTI外部线路寄存器NVIC_InitStructReadtempCmd();/初始化NVIC中断配置寄存器while(1)/* EXTI外部中断线服务程序*/voidEXTI2_IRQHandler(void)unsignedchari=0;unsignedcharflag=1;/低电平引导码9ms判断小于8694us大于9272us 一直循环否则跳出/高电平引导码判断小于4195us大于4712us 一直循环否则跳出/unsignedcharflag1=1;unsignedintCountline2=0;IR_Hongwai_1;Countli

9、ne2=IR_HongwaiRead_LSB_Cmd();if(Countline2<850)|(Countline2>950)return;Countline2=IR_HongwaiRead_MSB_Cmd();if(Countline2<400)|(Countline2>450)return;TimeByte=0;for(i=1;i<14;i+)TimeByte=TimeByte>>1;Countline2=IR_HongwaiRead_LSB_Cmd();if(Countline2<40)|(Countline2>85)/return

10、;Countline2=IR_HongwaiRead_MSB_Cmd();if(Countline2<40)|(Countline2>200)/return;if(Countline2>130)TimeByte|=0x80;/写1IR_Tireafg0=TimeByte;TimeByte=0;for(i=14;i<27;i+)TimeByte=TimeByte>>1;Countline2=IR_HongwaiRead_LSB_Cmd();if(Countline2<40)|(Countline2>85)return;Countline2=IR_H

11、ongwaiRead_MSB_Cmd();if(Countline2<40)|(Countline2>200)return;/低电平延时判断小于425us大于851us一直循环否则跳出/高电平延时判断小于425us大于1793us一直循环否则跳出/高电平延时大于1300us写1否则写0if(Countline2>130)TimeByte|=0x80;IR_Tireafg2 = TimeByte;TimeByte=0;for(i=27;i<35;i+)TimeByte=TimeByte>>1;Countline2=IR_HongwaiRead_LSB_Cmd(

12、);if(Countline2<40)|(Countline2>85)return;Countline2=IR_HongwaiRead_MSB_Cmd();if(Countline2<40)&&(Countline2>200)return;if(Countline2>130)TimeByte|=0x80;IR_Tireafg2=TimeByte;TimeByte=0;for(i=35;i<43;i+)TimeByte=TimeByte>>1;Countline2=IR_HongwaiRead_LSB_Cmd();while(Cou

13、ntline2<40)|(Countline2>85)return;Countline2=IR_HongwaiRead_MSB_Cmd();while(Countline2<40)|(Countline2>200)return;if(Countline2>130)TimeByte|=0x80;IR_Tireafg3 = TimeByte;/*判断用户正码和反码*/doif(IR_Tireafg0=0x08&IR_Tireafg1=0xF7)flag=0;whileflag=1);/*判断按键正码和反码*/*doif(IR_Tireafg2=IR_Tirea

14、fg3)flag1=0;while(flag1=0);*/*按下键码对应LED点亮*/switchcase(IR_Tireafg2)0x00:/按键0LED1_1;LED2_0;LED3_0;LED4_0;break;case0x01:/按键1LED1_0;LED2_1;LED3_0;LED4_0;break;case0x02:/按键2LED1_0;LED2_0;LED3_1;LED4_0;break;case0x03:/按键3LED1_0;LED2_0;LED3_0;LED4_1;break;case0x04:/按键4LED1_0;LED2_0;LED3_1;LED4_0;break;cas

15、e0x05:/按键5LED1_0;LED2_1;LED3_0;LED4_0;break;case0x06:/按键6LED1_1;LED2_0;LED3_0;LED4_0;break;case0x07:/按键7LED1_1;LED2_0;LED3_1;LED4_0;break;case0x08:/按键8LED1_0;LED2_0;LED3_0;LED4_0;break;case0x09:/按键9LED1_0;LED2_1;LED3_0;LED4_1;break;case0x15:/静音键LED1_0;LED2_1;LED3_1;LED4_0;break;case0x1C:/开机键LED1_1;L

16、ED2_0;LED3_0;LED4_1;break;case0x14:/OSD键LED1_1;LED2_1;LED3_0;LED4_0;break;case0x0E:/RECALL键LED1_0;LED2_0;LED3_1;LED4_1;break;case0x19:/SLEEP键LED1_1;LED2_1;LED3_1;LED4_0;break;case0x0A:/A/C键LED1_0;LED2_1;LED3_1;LED4_1;break;case0x0F:/TV/AV键LED1_1;LED2_1;LED3_1;LED4_1;break;case0x13:/PP键LED1_1;LED2_0;LED3_1;LED4_0;break;case0x0C:/GAME键LED1_0;LED2_1;LED3_1;LED4_1;break;case0x1E:/V-键LED1_1;LED2_1;LED3_1;LED4_0;break;case0x1F:/V+键LED1_0;LED2