Question

51单片机数码管显示程序

不知道是程序错了还是电路不对，我的数码管单片机仿真结果错误。
#include<reg52.h> #define uchar unsigned char #define uint unsigned int //uchar duan,wei;sbit duan=P1^6;sbit wei=P1^7; uchar code table[]={0x3f,0x06,0x5b,0x4f,0x66,0x6d,0x7d,0x07,0x7f,0x6f,0x77,0x7c,0x39,0x5e,0x79,0x71}; uchar code table1[]={0xfe,0xfd,0xfb,0xf7,0xef,0xdf,0xbf,0x7f}; void delay(uint z) { uint x,y; for(x<z;x>0;x--) for(y<100;y>0;y--);
} void main() { uint i,j; while(1) { wei=1; for(j=0;j<8;j++) { P2=table1[j]; wei=0; } duan=1; for(i=0;i<16;i++) { P2=table[i]; delay(20); duan=0; } } }

Answer 1

延时程序错了，应是

void delay(uint z)

{

    uint x,y;

    for(x=z;z>0;x--)

        for(y=110;y>0;y--);

}

Answer 2

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Answer 3

http://www.elecfans.com/article/88/