15.基于AT89C51单片机的8只数码管滚动显示数字串设计.zip

#include <reg52.h> #include <intrins.h> #define uchar unsigned char #define uint unsigned int uchar code DSY_CODE[]= { 0xc0,0xf9,0xa4,0xb0,0x99,0x92,0x82,0xf8,0x80,0x90 }; uchar Num[]= { 10,10,10,10,10,10,10,10,2,9,8 }; void DelayMS(uint x) { uchar t; while(x--) { for(t=120;t>0;t--); } } void main() { uchar i,j,k,m; P0 = 0xff; P2 = 0x00; m = 0x80; k = 0; while(1) { for(i=0;i<15;i++) { for(j=0;j<8;j++) { m = _crol_(m,1); P2 = m; P0 = DSY_CODE[Num[(k+j)%11]]; DelayMS(2); } } k = (k+1)%11; } }