文理单片机课堂作业_数码管显示_0311

51单片机数码管显示实验

图1：单位数码管显示7

#include<reg52.h>#definedulaP34#definewelaP16voidmain(){wela=1;P0=0x00;wela=0;dula=1;P0=0x07;dula=0;while(1);}

图2：单位数码管轮播0-9

#include<reg52.h>#definedulaP34#definewelaP16unsignedcharcode duanma[]={0x3F,0x06,0x5B,0x4F,0x66,0x6D,0x7D,0x07,0x7F,0x6F};voiddelay(unsignedintz){unsignedintx,y;for(x=z;x>0;x--)for(y=110;y>0;y--);}voidmain(){unsignedchari;while(1){for(i=0;i<10;i++){dula=1;P0=duanma[i];dula=0;delay(1000);}}}

图3：6位数码管显示9

#include<reg52.h>#definedulaP34#definewelaP16voidmain(){wela=1;P0=0xDF;wela=0;dula=1;P0=0x07;dula=0;while(1);}