一 程序头及类型定义
一 程序头及类型定义#include<reg52.h>#define uchar unsigned char#define uint unsigned int二 共阴数码管定义显示uchar code table=0x3f,0x06,0x5b,0x4f, 0x66,0x6d,0x7d,0x07, 0x7f,0x6f,0x77,0x7c, 0x39,0x5e,0x79,0x71;三 共阳数码管定义显示uchar code table=0xc0,0xf9,0xa4,0xb0, 0x99,0x92,0x82,0xf8, 0x80,0x90,0x88,0x83,0xc6,0xa1,0x86,0x8e;四 中断主程序 void main() TMOD=0x11; /*设置定时器0和1为工作方式1(00010001)*/ TH0=(65536-45872)/256; TL0=(65536-45872)%256; TH1=(65536-45872)/256; TL1=(65536-45872)%256; /*给定时器0和1装初值*/ EA=1; /*开总中断*/ ET0=1; ET1=1; /*开定时器0和1中断*/ TR0=1; TR1=1; /*启动定时器0和1*/ while(1) /*对数码管扫描且等待中断发生*/ display(shi,ge); 五 延时程序void delayms(uint x) uint j; for(x;x>0;x-) for(j=110;j>0;j-); /*延时xms*/