c51数码管动态显示共阳极代码

#include <reg52.h>
#define uint unsigned int
#define uchar unsigned char

// 数码管段选码
uchar code table[] = {
    0x3f, 0x06, 0x5b, 0x4f, 0x66, 0x6d, 0x7d, 0x07,
    0x7f, 0x6f, 0x77, 0x7c, 0x39, 0x5e, 0x79, 0x71
};

// 数码管位选码
uchar code place[] = {
    0xfe, 0xfd, 0xfb, 0xf7, 0xef, 0xdf, 0xbf, 0x7f
};

// 延时函数
void delay(uint x) {
    uint i, j;
    for (i = x; i > 0; i--) {
        for (j = 110; j > 0; j--);
    }
}

void main() {
    uchar i, j, k;
    while (1) {
        for (i = 0; i < 8; i++) { // 位选
            P0 = place[i];
            for (j = 0; j < 16; j++) { // 段选
                P1 = table[j];
                for (k = 0; k < 100; k++) { // 延时
                    delay(1);
                }
            }
        }
    }
}