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        MCU資訊論壇 附件中心 單片機論壇 51單片機論壇 5_45842_49a3d0256dee8c8.jpg

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        拉幕式數碼顯示設計(附Proteus仿真):
        拉幕式數碼顯示設計(附Proteus仿真)沒事做,看到壇友發的題目就想了一下,因題目不是很清楚,以我的思維有兩種理解,仿真中兩種顯示方式可以使用開關切換



        程序如下(附件有源程序和Proteus仿真):
        #include "reg52.h"
        #define uchar unsigned char
        uchar code table1[128]={0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x7f,//8
        0x00,0x00,0x00,0x00,0x00,0x00,0x7f,0x07,//87
        0x00,0x00,0x00,0x00,0x00,0x7f,0x07,0x7d,//876
        0x00,0x00,0x00,0x00,0x7f,0x07,0x7d,0x6d,//8765
        0x00,0x00,0x00,0x7f,0x07,0x7d,0x6d,0x66,//87654
        0x00,0x00,0x7f,0x07,0x7d,0x6d,0x66,0x4f,
        0x00,0x7f,0x07,0x7d,0x6d,0x66,0x4f,0x5B,
        0x7f,0x07,0x7d,0x6d,0x66,0x4f,0x5B,0x06,
        0x07,0x7d,0x6d,0x66,0x4f,0x5B,0x06,0x00,
        0x7d,0x6d,0x66,0x4f,0x5B,0x06,0x00,0x00,
        0x6d,0x66,0x4f,0x5B,0x06,0x00,0x00,0x00,
        0x66,0x4f,0x5B,0x06,0x00,0x00,0x00,0x00,
        0x4f,0x5B,0x06,0x00,0x00,0x00,0x00,0x00,
        0x5B,0x06,0x00,0x00,0x00,0x00,0x00,0x00,
        0x06,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
        0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00//消失,數碼管共陰
        };
        uchar code table2[]={0x7f,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
        0x7f,0x07,0x00,0x00,0x00,0x00,0x00,0x00,
        0x7f,0x07,0x7d,0x00,0x00,0x00,0x00,0x00,
        0x7f,0x07,0x7d,0x6d,0x00,0x00,0x00,0x00,
        0x7f,0x07,0x7d,0x6d,0x66,0x00,0x00,0x00,
        0x7f,0x07,0x7d,0x6d,0x66,0x4f,0x00,0x00,
        0x7f,0x07,0x7d,0x6d,0x66,0x4f,0x5B,0x00,
        0x7f,0x07,0x7d,0x6d,0x66,0x4f,0x5B,0x06,
        0x00,0x07,0x7d,0x6d,0x66,0x4f,0x5B,0x06,
        0x00,0x00,0x7d,0x6d,0x66,0x4f,0x5B,0x06,
        0x00,0x00,0x00,0x6d,0x66,0x4f,0x5B,0x06,
        0x00,0x00,0x00,0x00,0x66,0x4f,0x5B,0x06,
        0x00,0x00,0x00,0x00,0x00,0x4f,0x5B,0x06,
        0x00,0x00,0x00,0x00,0x00,0x00,0x5B,0x06,
        0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x06,
        0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00
        };
        uchar counter,n;
        sbit ls138=P3^0;
        sbit swich=P3^7;
        void timer0() interrupt 1 using 1
        {
        TH0=(65536-46920)/256;
        TH0=(65536-46920)%256;
        counter++;
        if(counter==20)
        {
        counter=0;
        n+=8;
        if(n==128)n=0;
        }
        }
        void delay(uchar i)
        {
        uchar j;
        while(i--)
        {
        for(j=0;j<248;j++);
        }
        }
        void disp1(uchar i)
        {
        uchar m;P2=0x00;
        for(m=0;m<8;m++)
        {
        P0=table1;
        P2=~m;
        ls138=0;
        delay(1);
        ls138=1;
        i++;
        }
        }
        void disp2(uchar i)
        {
        uchar m;P2=0x00;
        for(m=0;m<8;m++)
        {
        P0=table2;
        P2=~m;
        ls138=0;
        delay(1);
        ls138=1;
        i++;
        }
        }
        void main()
        {
        n=0;
        counter=0;
        TMOD=0x01;
        TH0=(65536-46920)/256;
        TH0=(65536-46920)%256;
        ET0=1;EA=1;
        TR0=1;
        while(1)
        {
        if(swich==1)disp1(n);
        else disp2(n);
        }
        }

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