17.1 红外遥控

#include REGX52.H/*** brief 外部中断0初始化* param 无* retval 无*/void Int0_Init(void){IT01;IE00;EX01;EA1;PX01;}/*外部中断0中断函数模板void Int0_Routine(void) interrupt 0{}*/#include REGX52.H#include Timer0.h#include Int0.hunsigned int IR_Time;unsigned char IR_State;unsigned char IR_Data[4];unsigned char IR_pData;unsigned char IR_DataFlag;unsigned char IR_RepeatFlag;unsigned char IR_Address;unsigned char IR_Command;/*** brief 红外遥控初始化* param 无* retval 无*/void IR_Init(void){Timer0_Init();Int0_Init();}/*** brief 红外遥控获取收到数据帧标志位* param 无* retval 是否收到数据帧1为收到0为未收到*/unsigned char IR_GetDataFlag(void){if(IR_DataFlag){IR_DataFlag0;return 1;}return 0;}/*** brief 红外遥控获取收到连发帧标志位* param 无* retval 是否收到连发帧1为收到0为未收到*/unsigned char IR_GetRepeatFlag(void){if(IR_RepeatFlag){IR_RepeatFlag0;return 1;}return 0;}/*** brief 红外遥控获取收到的地址数据* param 无* retval 收到的地址数据*/unsigned char IR_GetAddress(void){return IR_Address;}/*** brief 红外遥控获取收到的命令数据* param 无* retval 收到的命令数据*/unsigned char IR_GetCommand(void){return IR_Command;}//外部中断0中断函数下降沿触发执行void Int0_Routine(void) interrupt 0{if(IR_State0) //状态0空闲状态{Timer0_SetCounter(0); //定时计数器清0Timer0_Run(1); //定时器启动IR_State1; //置状态为1}else if(IR_State1) //状态1等待Start信号或Repeat信号{IR_TimeTimer0_GetCounter(); //获取上一次中断到此次中断的时间Timer0_SetCounter(0); //定时计数器清0//如果计时为13.5ms则接收到了Start信号判定值在12MHz晶振下为13500在11.0592MHz晶振下为12442if(IR_Time13500-500 IR_Time13500500){IR_State2; //置状态为2}//如果计时为11.25ms则接收到了Repeat信号判定值在12MHz晶振下为11250在11.0592MHz晶振下为10368else if(IR_Time11250-500 IR_Time11250500){IR_RepeatFlag1; //置收到连发帧标志位为1Timer0_Run(0); //定时器停止IR_State0; //置状态为0}else //接收出错{IR_State1; //置状态为1}}else if(IR_State2) //状态2接收数据{IR_TimeTimer0_GetCounter(); //获取上一次中断到此次中断的时间Timer0_SetCounter(0); //定时计数器清0//如果计时为1120us则接收到了数据0判定值在12MHz晶振下为1120在11.0592MHz晶振下为1032if(IR_Time1120-500 IR_Time1120500){IR_Data[IR_pData/8]~(0x01(IR_pData%8)); //数据对应位清0IR_pData; //数据位置指针自增}//如果计时为2250us则接收到了数据1判定值在12MHz晶振下为2250在11.0592MHz晶振下为2074else if(IR_Time2250-500 IR_Time2250500){IR_Data[IR_pData/8]|(0x01(IR_pData%8)); //数据对应位置1IR_pData; //数据位置指针自增}else //接收出错{IR_pData0; //数据位置指针清0IR_State1; //置状态为1}if(IR_pData32) //如果接收到了32位数据{IR_pData0; //数据位置指针清0if((IR_Data[0]~IR_Data[1]) (IR_Data[2]~IR_Data[3])) //数据验证{IR_AddressIR_Data[0]; //转存数据IR_CommandIR_Data[2];IR_DataFlag1; //置收到连发帧标志位为1}Timer0_Run(0); //定时器停止IR_State0; //置状态为0}}}#include REGX52.H#include Delay.h#include LCD1602.h#include IR.hunsigned char Num;unsigned char Address;unsigned char Command;void main(){LCD_Init();LCD_ShowString(1,1,ADDR CMD NUM);LCD_ShowString(2,1,00 00 000);IR_Init();while(1){if(IR_GetDataFlag() || IR_GetRepeatFlag()) //如果收到数据帧或者收到连发帧{AddressIR_GetAddress(); //获取遥控器地址码CommandIR_GetCommand(); //获取遥控器命令码LCD_ShowHexNum(2,1,Address,2); //显示遥控器地址码LCD_ShowHexNum(2,7,Command,2); //显示遥控器命令码if(CommandIR_VOL_MINUS) //如果遥控器VOL-按键按下{Num--; //Num自减}if(CommandIR_VOL_ADD) //如果遥控器VOL按键按下{Num; //Num自增}LCD_ShowNum(2,12,Num,3); //显示Num}}}