红外遥控STM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 "stm32f10x.h" #include "exti.h" #include "beep.h" #include "SysTick.h"    #define   

2、; LED1_0      GPIOD->BRR  = 0x00000100 /LED低电平 #define    LED2_0      GPIOD->BRR  = 0x00000200 #define    LED3_0      GPIOD->BRR  = 0x00000400 #define    LE

3、D4_0      GPIOD->BRR  = 0x00000800 #define    LED1_1      GPIOD->BSRR = 0x00000100     /LED高电平 #define    LED2_1      GPIOD->BSRR = 0x00000200 #define    LE

4、D3_1      GPIOD->BSRR = 0x00000400 #define    LED4_1      GPIOD->BSRR = 0x00000800   #define    IR_Hongwai_0         GPIOE->BRR  = 0x00000004   /红外数据低电平 #define&

5、#160;   IR_Hongwai_1         GPIOE->BSRR = 0x00000004   /红外数据高电平 #define    IR_Hongwai_x GPIO_ReadInputDataBit(GPIOE, GPIO_Pin_2)  /读取红外电平状态 unsigned char TimeByte; unsigned int IR_Tireafg4; unsigned int IR_xidwr

6、it8 = 0, 0, 0, 0, 0, 0 ,0, 0;   /* *   GPIO端口配置子函数 */ void GPIO_InitStructReadtempCmd(void)  GPIO_InitTypeDef GPIO_InitStruct; GPIO_InitStruct.GPIO_Pin = GPIO_Pin_2;  /配置GPIO管脚 GPIO_InitStruct.GPIO_Mode = GPIO_Mode_IPU;  

7、;/配置管脚为输入上拉 GPIO_InitStruct.GPIO_Speed = GPIO_Speed_50MHz;  /配置管脚速率50MHZ GPIO_Init(GPIOE, &GPIO_InitStruct);  /初始化指定端口 GPIO_InitStruct.GPIO_Pin = GPIO_Pin_5; GPIO_InitStruct.GPIO_Mode = GPIO_Mode_Out_PP;  /配置管脚陪推挽式输出 GPIO_InitStruct.GPIO_Spe

8、ed = GPIO_Speed_50MHz; GPIO_Init(GPIOB, &GPIO_InitStruct); GPIO_InitStruct.GPIO_Pin = GPIO_Pin_8 | GPIO_Pin_9 | GPIO_Pin_10 | GPIO_Pin_11; GPIO_InitStruct.GPIO_Mode = GPIO_Mode_Out_PP; GPIO_InitStruct.GPIO_Speed = GPIO_Speed_50MHz; GPIO_Init(GPIOD, &GPIO_InitStruct);

9、     /* *   配置外设时钟子函数 */ void RCC_APB2PeriphReadtempyCmd(void)  RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOB, ENABLE);  /打开GPIOB外设时钟 RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOE, ENABLE);  /打开GPIOE外设时钟 RCC_APB2PeriphC

10、lockCmd(RCC_APB2Periph_GPIOD, ENABLE);  /打开GPIOD外设时钟 RCC_APB2PeriphClockCmd(RCC_APB2Periph_AFIO , ENABLE);  /打开AFIO复用功能外设时钟 RCC_APB1PeriphClockCmd(RCC_APB1Periph_TIM2 , ENABLE);    /* * 计算低脉宽持续时间Count1 * 10us  */ unsigned int IR_Hongwa

11、iRead_LSB_Cmd()  unsigned int Count1 = 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1 Delay_10us(1);    /延时10us   while(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

12、体 return(Count1);    /返回时间变量积数  /* * 计算高脉宽持续时间Count2 * 10us  */ unsigned int IR_HongwaiRead_MSB_Cmd()  unsigned int Count2 = 0;    /定义时间变量 IR_Hongwai_1;    /红外数据高电平 do    /进入循环体     

13、60;Count2+;    /时间变量加1 Delay_10us(1);    /延时10us   while(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 */ int main(void)  SystemInit();   /初始化系统时钟进入72M主频 SYS

14、TICK_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_InitStructReadtempCmd();   /初始化EXTI外部线路寄存器 NVIC_InitStructReadtempCmd();   /初始化NVIC中

15、断配置寄存器 while(1)      /* *   EXTI外部中断线服务程序 */ void EXTI2_IRQHandler(void)  unsigned char i = 0;  unsigned char flag = 1; / unsigned char flag1 = 1;  unsigned int Countline2 = 0; IR_Hongwai_1; Countline

16、2 = IR_HongwaiRead_LSB_Cmd();  /低电平引导码 9ms判断 if(Countline2 < 850) | (Countline2 > 950) /小于8694us 大于9272us 一直循环否则跳出  return;    Countline2 = IR_HongwaiRead_MSB_Cmd();  /高电平引导码 4.5ms判断 if(Countline2 < 400) | (Countline2 > 450) /小于4195u

17、s 大于4712us 一直循环否则跳出  return;  TimeByte = 0; for(i = 1; i < 14; i+)  TimeByte = TimeByte >> 1; Countline2 = IR_HongwaiRead_LSB_Cmd();   /低电平延时0.56 判断 if(Countline2 < 40) | (Countline2 > 85)/小于425us 大于851us 一直循环否则跳出  retur

18、n;  Countline2 = IR_HongwaiRead_MSB_Cmd();   /高电平延时0.56判断 if(Countline2 < 40) | (Countline2 > 200)/小于425us 大于1793us 一直循环否则跳出  return;  if( Countline2 > 130)  /高电平延时大于1300us写1否则写0  TimeByte |= 0x80;  /写1  &#

19、160;IR_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_HongwaiRead_MSB_Cmd(); if(Countl

20、ine2 < 40) | (Countline2 > 200)  return;  if( Countline2 > 130)  TimeByte |= 0x80;   IR_Tireafg1 = TimeByte; TimeByte = 0; for(i = 27; i < 35; i+)  TimeByte = TimeByte >> 1; Countline2 = IR_HongwaiRead_LSB_Cmd();

21、 if(Countline2 < 40) | (Countline2 > 85)  return;  Countline2 = IR_HongwaiRead_MSB_Cmd(); if(Countline2 < 40) && (Countline2 > 200)  return;  if( Countline2 > 130)  TimeByte |= 0x80;   IR_Tireafg2 = Tim

22、eByte; TimeByte = 0; for(i = 35; i < 43; i+)  TimeByte = TimeByte >> 1; Countline2 = IR_HongwaiRead_LSB_Cmd(); while(Countline2 < 40) | (Countline2 > 85)  return;  Countline2 = IR_HongwaiRead_MSB_Cmd(); while(Countline2 < 40) |

23、 (Countline2 > 200)  return;  if( Countline2 > 130)  TimeByte |= 0x80;   IR_Tireafg3 = TimeByte; /*判断用户正码和反码*/ do  if(IR_Tireafg0 = 0x08 & IR_Tireafg1 = 0xF7 )  flag = 0;     while(flag = 1);  &#

24、160;      /*判断按键正码和反码*/ /* do  if(IR_Tireafg2 = IR_Tireafg3)  flag1 = 0;   while(flag1 = 0);        */ /*按下键码对应LED点亮*/ switch  (IR_Tireafg2)  case         

25、0x00:   /按键 0 LED1_1; LED2_0; LED3_0; LED4_0; break;   case         0x01:    /按键 1 LED1_0; LED2_1; LED3_0; LED4_0; break;   case         0x02:   /按键 2 LED1

26、_0; LED2_0; LED3_1; LED4_0; break;   case         0x03:   /按键 3 LED1_0; LED2_0; LED3_0; LED4_1; break; case         0x04:   /按键 4 LED1_0; LED2_0; LED3_1; LED4_0; break; c

27、ase         0x05:   /按键 5 LED1_0; LED2_1; LED3_0; LED4_0; break; case         0x06:   /按键 6 LED1_1; LED2_0; LED3_0; LED4_0; break; case         0x07:  

28、0;/按键 7 LED1_1; LED2_0; LED3_1; LED4_0; break; case         0x08:   /按键 8 LED1_0; LED2_0; LED3_0; LED4_0; break;   case         0x09:   /按键 9 LED1_0; LED2_1; LED3_0; LED4_1;&#

29、160;break; case         0x15:   /静音键 LED1_0; LED2_1; LED3_1; LED4_0; break; case         0x1C:   /开机键 LED1_1; LED2_0; LED3_0; LED4_1; break;   case      &#

30、160;  0x14:   /OSD键 LED1_1; LED2_1; LED3_0; LED4_0; break;   case         0x0E:   /RECALL键 LED1_0; LED2_0; LED3_1; LED4_1; break;   case         0x19:   /S

31、LEEP键 LED1_1; LED2_1; LED3_1; LED4_0; break;   case         0x0A:   /A/C键 LED1_0; LED2_1; LED3_1; LED4_1; break;   case         0x0F:   /TV/AV键 LED1_1; LED2_1; LED3_1; LED4_1; break;   case         0x13:   /PP键 LED1_1; LED2_0; LED3_1; LED4_0; break;&