紅外遙控STM32程序

1、./* *       stm32F103VET6 紅外驅(qū)動【遙控器解碼實驗程序】 * *   遙控器 ：42位編碼 * */ #include "stm32f10x.h" #include "exti.h" #include "beep.h" #include "SysTick.h"    #define  

2、0; LED1_0      GPIOD->BRR  = 0x00000100 /LED低電平 #define    LED2_0      GPIOD->BRR  = 0x00000200 #define    LED3_0      GPIOD->BRR  = 0x00000400 #define    L

3、ED4_0      GPIOD->BRR  = 0x00000800 #define    LED1_1      GPIOD->BSRR = 0x00000100     /LED高電平 #define    LED2_1      GPIOD->BSRR = 0x00000200 #define    L

4、ED3_1      GPIOD->BSRR = 0x00000400 #define    LED4_1      GPIOD->BSRR = 0x00000800   #define    IR_Hongwai_0         GPIOE->BRR  = 0x00000004   /紅外數(shù)據(jù)低電平 #define

5、    IR_Hongwai_1         GPIOE->BSRR = 0x00000004   /紅外數(shù)據(jù)高電平 #define    IR_Hongwai_x GPIO_ReadInputDataBit(GPIOE, GPIO_Pin_2)  /讀取紅外電平狀態(tài) unsigned char TimeByte; unsigned int IR_Tireafg4; unsigned int IR_xidw

6、rit8 = 0, 0, 0, 0, 0, 0 ,0, 0;   /* *   GPIO端口配置子函數(shù) */ void GPIO_InitStructReadtempCmd(void)  GPIO_InitTypeDef GPIO_InitStruct; GPIO_InitStruct.GPIO_Pin = GPIO_Pin_2;  /配置GPIO管腳 GPIO_InitStruct.GPIO_Mode = GPIO_Mode_IPU; 

7、0;/配置管腳為輸入上拉 GPIO_InitStruct.GPIO_Speed = GPIO_Speed_50MHz;  /配置管腳速率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;  /配置管腳陪推挽式輸出 GPIO_InitStruct.GPIO_Sp

8、eed = 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、;     /* *   配置外設(shè)時鐘子函數(shù) */ void RCC_APB2PeriphReadtempyCmd(void)  RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOB, ENABLE);  /打開GPIOB外設(shè)時鐘 RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOE, ENABLE);  /打開GPIOE外設(shè)時鐘 RCC_APB2Periph

10、ClockCmd(RCC_APB2Periph_GPIOD, ENABLE);  /打開GPIOD外設(shè)時鐘 RCC_APB2PeriphClockCmd(RCC_APB2Periph_AFIO , ENABLE);  /打開AFIO復用功能外設(shè)時鐘 RCC_APB1PeriphClockCmd(RCC_APB1Periph_TIM2 , ENABLE);    /* * 計算低脈寬持續(xù)時間Count1 * 10us  */ unsigned int IR_Hongw

11、aiRead_LSB_Cmd()  unsigned int Count1 = 0;    /定義時間變量 IR_Hongwai_0;    /紅外數(shù)據(jù)低電平 do    /進入循環(huán)體  Count1+;    /時間變量加1 Delay_10us(1);    /延時10us   while(IR_Hongwai_x = 0);  /判斷條件如果讀出來的紅外數(shù)據(jù)為高電平跳出循

12、環(huán)體 return(Count1);    /返回時間變量積數(shù)  /* * 計算高脈寬持續(xù)時間Count2 * 10us  */ unsigned int IR_HongwaiRead_MSB_Cmd()  unsigned int Count2 = 0;    /定義時間變量 IR_Hongwai_1;    /紅外數(shù)據(jù)高電平 do    /進入循環(huán)體     &#

13、160;Count2+;    /時間變量加1 Delay_10us(1);    /延時10us   while(IR_Hongwai_x = 1);  /判斷條件如果讀出來的紅外數(shù)據(jù)為低電平跳出循環(huán)體 return(Count2);  /* *   函數(shù)主體 */ int main(void)  SystemInit();   /初始化系統(tǒng)時鐘進入72M主頻 SY

14、STICK_InitStructReadTCmd();   /初始化SysTick配置器寄存器 RCC_APB2PeriphReadtempyCmd();   /初始化外設(shè)時鐘配置寄存器 GPIO_InitStructReadtempCmd();   /初始化GPIO端口配置寄存器 EXTI_InitStructReadtempCmd();   /初始化EXTI外部線路寄存器 NVIC_InitStructReadtempCmd();   /初始化NVIC

15、中斷配置寄存器 while(1)      /* *   EXTI外部中斷線服務程序 */ void EXTI2_IRQHandler(void)  unsigned char i = 0;  unsigned char flag = 1; / unsigned char flag1 = 1;  unsigned int Countline2 = 0; IR_Hongwai_1; Countlin

16、e2 = IR_HongwaiRead_LSB_Cmd();  /低電平引導碼 9ms判斷 if(Countline2 < 850) | (Countline2 > 950) /小于8694us 大于9272us 一直循環(huán)否則跳出  return;    Countline2 = IR_HongwaiRead_MSB_Cmd();  /高電平引導碼 4.5ms判斷 if(Countline2 < 400) | (Countline2 > 450) /小于4195

17、us 大于4712us 一直循環(huán)否則跳出  return;  TimeByte = 0; for(i = 1; i < 14; i+)  TimeByte = TimeByte >> 1; Countline2 = IR_HongwaiRead_LSB_Cmd();   /低電平延時0.56 判斷 if(Countline2 < 40) | (Countline2 > 85)/小于425us 大于851us 一直循環(huán)否則跳出  retu

18、rn;  Countline2 = IR_HongwaiRead_MSB_Cmd();   /高電平延時0.56判斷 if(Countline2 < 40) | (Countline2 > 200)/小于425us 大于1793us 一直循環(huán)否則跳出  return;  if( Countline2 > 130)  /高電平延時大于1300us寫1否則寫0  TimeByte |= 0x80;  /寫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(Count

20、line2 < 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 = Ti

22、meByte; 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; /*判斷用戶正碼和反碼*/ do  if(IR_Tireafg0 = 0x08 & IR_Tireafg1 = 0xF7 )  flag = 0;     while(flag = 1);  &

24、#160;      /*判斷按鍵正碼和反碼*/ /* do  if(IR_Tireafg2 = IR_Tireafg3)  flag1 = 0;   while(flag1 = 0);        */ /*按下鍵碼對應LED點亮*/ switch  (IR_Tireafg2)  case         

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

26、1_0; LED2_0; LED3_1; LED4_0; break;   case         0x03:   /按鍵 3 LED1_0; LED2_0; LED3_0; LED4_1; break; case         0x04:   /按鍵 4 LED1_0; LED2_0; LED3_1; LED4_0; break; 

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

28、60;/按鍵 7 LED1_1; LED2_0; LED3_1; LED4_0; break; case         0x08:   /按鍵 8 LED1_0; LED2_0; LED3_0; LED4_0; break;   case         0x09:   /按鍵 9 LED1_0; LED2_1; LED3_0; LED4_1;&

29、#160;break; case         0x15:   /靜音鍵 LED1_0; LED2_1; LED3_1; LED4_0; break; case         0x1C:   /開機鍵 LED1_1; LED2_0; LED3_0; LED4_1; break;   case      &

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

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