红外模块

遥控器主要是通过解码来控制红外模块，从而完成小车的行走
#include "apue.h"
#include "uart.h"

void main()
{
    TMOD = 0x20;    // timer1, auto-load
    TH1 = TL1 = 0xFF;
    PCON = 0x80;    // 57600bps on 11.0592M
    SCON = 0x50;    // UART, REN
    IE = 0x91;      // EA, ES, EX0
    TR1 = 1;        // start

    while(1);
}

void int0_IR() interrupt 0
{
    size_t lowTime, highTime;
    EX0 = 0;
    memset(UARTBuf, 0, SLEN);
    /* detect leader code pluse */
    TH2 = TL2 = 0;          // Clear timer
    TR2 = 1;                // run timer
    while(IR == 0);         // until MCU detect high level
    TR2 = 0;                // stop timer
    UARTBuf[0] = TH2;       // store timer value
    UARTBuf[1] = TL2;

    TH2 = TL2 = 0;
    TR2 = 1;
    while(IR == 1);
    TR2 =0;
    UARTBuf[2] = TH2;
    UARTBuf[3] = TL2;
    UARTBuf[SLEN - 1] = 0x7e;   // end of data
    UARTSend();         // send data to PC over RS232
    delayms(1000);          // delay 1 second
    EX0 = 1;
}
}

转载于:https://www.cnblogs.com/yuelingzhi/archive/2011/11/28/2266745.html