51完结撒花!!!
这块如果IR听不懂可以看看那个状态机的相关视频。
Int0.c
#include <REGX52.H>
void Int0_Init(void)
{
IT0=1;
IE0=0;
EX0=1;
EA=1;
PX0=1;
}
//void Int0_Routine(void) interrupt 0
//{
// Num++;
//}
Timer0.c
#include <REGX52.H>
/**
* @brief 定时器0初始化,1毫秒@12.000MHz
* @param 无
* @retval 无
*/
void Timer0_Init(void) //10us
{
TMOD &= 0xF0; //设置定时器模式
TMOD |= 0x01; //设置定时器模式
TL0 = 0xA4; //设置定时初值
TH0 = 0xFF; //设置定时初值
TF0 = 0; //清除TF0标志
TR0 = 1; //定时器0不计时
}
void Timer0SetCounter(unsigned int Value)//把传过来的十六位数据拆成两个八位存进寄存器,设置初始值(要拆掉才能存)
{
TH0=Value/256;
TL0=Value%256;
}
unsigned int Timer0_GetCounter(void)//把定时器里变化后的数据拿出来,得到时间差
{
return (TH0<<8)|TL0;
}
void Timer0_Run(unsigned char Flag)//主函数里启动定时器的开关
{
TR0=Flag;
}
IR.c
#include <REGX52.H>
#include "Timer0.h"
#include "Int0.h"
unsigned 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;
void IR_Init(void)
{
Timer0_Init();
Int0_Init();
}
unsigned char IR_GetDataFlag(void)
{
if(IR_DataFlag)
{
IR_DataFlag=0;
return 1;
}
return 0;
}
unsigned char IR_GetRepeatFlag(void)
{
if(IR_RepeatFlag)
{
IR_RepeatFlag=0;
return 1;
}
return 0;
}
unsigned char IR_GetAddress(void)
{
return IR_Address;
}
unsigned char IR_GetCommand(void)
{
return IR_Command;
}
void Int0_Routine(void) interrupt 0
{
if(IR_State==0)
{
Timer0SetCounter(0);
Timer0_Run(1);
IR_State=1;
}
else if(IR_State==1)
{
IR_Time=Timer0_GetCounter();
Timer0SetCounter(0);
if(IR_Time>12442-500&&IR_Time<12442+500)
{
IR_State=2;
}
else if(IR_Time>10368-500&&IR_Time<10368+500)
{
IR_RepeatFlag=1;
Timer0_Run(0);
IR_State=0;
}
else
{
IR_State=1;
}
}
else if(IR_State==2)
{
IR_Time=Timer0_GetCounter();
Timer0SetCounter(0);
if(IR_Time>1032-500&&IR_Time<1032+500)
{
IR_Data[IR_pData/8]&=~(0x01<<(IR_pData%8));
IR_pData++;
}
else if(IR_Time>2074-500&&IR_Time<2074+500)
{
IR_Data[IR_pData/8]|=(0x01<<(IR_pData%8));
IR_pData++;
}
else
{
IR_pData=0;
IR_State=1;
}
if(IR_pData>=32)
{
IR_pData=0;
if((IR_Data[0]==~IR_Data[1])&&(IR_Data[2]==~IR_Data[3]))
{
IR_Address=IR_Data[0];
IR_Command=IR_Data[2];
IR_DataFlag=1;
}
Timer0_Run(0);
IR_State=0;
}
}
}
main.c
#include <REGX52.H>
#include "LCD1602.h"
#include "Delay.h"
#include "IR.h"
unsigned int 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())
{
Address=IR_GetAddress();
Command=IR_GetCommand();
LCD_ShowHexNum(2,1,Address,2);
LCD_ShowHexNum(2,7,Command,2);
if(Command==IR_VOL_MINUS)
{
Num--;
}
if(Command==IR_VOL_ADD)
{
Num++;
}
LCD_ShowNum(2,12,Num,3);
}
}
}