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      1. 新聞中心

        EEPW首頁(yè) > 嵌入式系統(tǒng) > 設(shè)計(jì)應(yīng)用 > 世上最簡(jiǎn)單的遙控(數(shù)碼管顯示)電子鐘(C語(yǔ)言編寫(xiě))

        世上最簡(jiǎn)單的遙控(數(shù)碼管顯示)電子鐘(C語(yǔ)言編寫(xiě))

        作者: 時(shí)間:2016-11-29 來(lái)源:網(wǎng)絡(luò) 收藏
        /*此程序?yàn)榧t外遙控電子鐘,晶振為12M,MCU型號(hào)為51系列,電路很簡(jiǎn)單四位共陽(yáng)數(shù)碼管,紅外接收管sm0038接在P3.2*/

        #include
        #define uchar unsigned char
        #define uint unsigned int
        #define c(x) (x*120000/120000)
        sbit IR=P3^2;

        本文引用地址:http://www.biyoush.com/article/201611/323368.htm

        sbit ge=P2^3;//數(shù)碼管四位選控制端
        sbit shi=P2^2;
        sbit bai=P2^1;
        sbit qian=P2^0;

        char miao,fen=59,shij=23;//時(shí)分秒3個(gè)變量
        uchar num,ding; //兩定時(shí)器計(jì)數(shù)變量
        uint temp;//遙控解碼變量
        uchar i;
        uchar j;
        bit flag;//控制小數(shù)點(diǎn)亮與滅變量
        bit power;//控制數(shù)碼管亮與滅變量
        bit flash;//進(jìn)入時(shí)間調(diào)整標(biāo)志位變量

        uchar IRBUF[4]; //用于保存解碼結(jié)果
        uchar code table[]={
        0xc0,0xf9,0xa4,0xb0,0x99,
        0x92,0x82,0xf8,0x80,0x90,
        0x88,0x83,0xc6,0xa1,0x86,
        0x8e
        };

        uint Low()
        {
        TL0=0;
        TH0=0;
        TR0=1;
        while(!IR&&(TH0&0x80)==0);
        TR0=0;
        return TH0*256+TL0;
        }
        //=============================================================
        uint High()
        {
        TL0=0;
        TH0=0;
        TR0=1;
        while(IR&&(TH0&0x80)==0);
        TR0=0;
        return TH0*256+TL0;
        }
        void xian(uchar shik,uchar fen)
        {
        P0=table[shik/10];
        if(power==0)
        qian=0;
        else
        qian=1;
        // delay(2);
        qian=1;
        if(flag==0)
        P0=table[shik%10]&0x7f;
        else
        P0=table[shik%10]|0x80;
        if(power==0)
        bai=0;
        else
        bai=1;
        //delay(2);
        bai=1;
        P0=table[fen/10];
        if(power==0)
        shi=0;
        else
        shi=1;
        //delay(2);
        shi=1;
        P0=table[fen%10];
        if(power==0)
        ge=0;
        else
        ge=1;
        //delay(2);
        ge=1;
        }
        void yin()
        {
        while(1)
        {
        restart:
        while(IR)
        {

        xian(shij,fen);
        if(flash==1)
        {
        if(ding>5)
        {
        ding=0;
        power=~power;
        //xian(shij,fen);
        }
        }
        }
        temp=Low();
        if(tempc(9500)) continue;//引導(dǎo)脈沖低電平9000
        temp=High();
        if(tempc(5000)) continue;//引導(dǎo)脈沖高電平4500
        for(i=0;i<4;i++) //4個(gè)字節(jié)
        {
        for(j=0;j<8;j++) //每個(gè)字節(jié)8位
        {
        temp=Low();
        if(tempc(800)) goto restart;
        temp=High();
        if(tempc(2000)) goto restart;
        IRBUF[i]>>=1;
        if(temp>c(1120)) IRBUF[i]|=0x80;
        }
        }
        return;
        }
        }


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