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  • 简单的双机通讯

    #include<reg51.h>
    int main()
    {
        TMOD = 0x20;
        TH1 = 0xfd;
        TL1 = 0xfd;
        SCON = 0x50;
        PCON = 0x00;
        TR1 = 1;
    
        while(1)
        {
            do{
                SBUF = 0x01;
                while(!TI);
                TI = 0;
                while(!RI);
                RI = 0;        
                }
    
            while((SBUF^0x02)!=0);
    
            do{
                SBUF = P1;
                while(!TI);
                TI = 0;
                SBUF = 0xff;
                while(!TI);
                TI = 0;
                while(!RI);
                RI = 0;
                 }
    
            while((SBUF^0xff)!=0);
        }
    
        return 0;
    }
    甲机代码
    #include<reg51.h>
    int main()
    {
        TMOD = 0x20;
        TH1 = 0xfd;
        TL1 = 0xfd;
        SCON = 0x50;
        PCON = 0x00;
        TR1 = 1;
        P1 = 0xff;
    
        while(1)
        {
            do{
                while(!RI);
                RI = 0;
                }
    
            while((SBUF^0x01)!=0);
    
            do{
                SBUF = 0x02;
                while(!TI);
                TI = 0;
                while(!RI);
                RI = 0;
                P1 = SBUF;
                while(!RI);
                RI = 0;
                 }
        
    
            while((SBUF^0xff)!=0);
            SBUF = 0xff;
            while(!TI);
            TI = 0;
        }
    
        return 0;
    }
    乙机代码
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  • 原文地址:https://www.cnblogs.com/tkid/p/3641808.html
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