本程序所用的原理图下载: 点这里 ，单片机芯片使用的stc89c52；找到相应部分即可.这是一整个单片机的电路图其他的忽略.以下是通过测试的源代码：
/* *功能：用定时器0实现定时200毫秒流水灯, * 同时用定时器1实现动态显示654321， * 且发声； *日期：2014-03-24 *作者：徐冉 *注意事项：若打开两个定时器时，必须使用两个定时器， * 否则两个定时器都不工作！！！ **/ /**********AT89C52-RC 51hei单片机实验板**************/ /*************51hei-开发板*********************/ #include <reg52.h> typedef unsigned int uint; typedef unsigned char uchar; sbit wela = P2^7; //位声明 sbit dula = P2^6; //数码管段选声明 sbit FM = P2^3;//蜂鸣器声明 uchar counter = 0, counter1 = 0, j = 0, flag = 0, flag1 = 0; uchar num = 6, num1 = 0; //数码管段选编码 uchar code table_du [] = { 0x3F, //"0" 0x06, //"1" 0x5B, //"2" 0x4F, //"3" 0x66, //"4" 0x6D, //"5" 0x7D, //"6" 0x07, //"7" 0x7F, //"8" 0x6F, //"9" 0x77, //"A" 0x7C, //"B" 0x39, //"C" 0x5E, //"D" 0x79, //"E" 0x71, //"F" 0x76, //"H" 0x38, //"L" 0x37, //"n" 0x3E, //"u" 0x73, //"P" 0x5C, //"o" 0x40, //"-" 0x00, //熄灭 0x00 //自定义 }; //数码管位选编码 uchar code table_we[] = { 0xfe, 0xfd, 0xfb, 0xf7, 0xef, 0xdf }; void init(); void display(); void main() { init(); while(1) { if(counter1 == 30) { counter1 = 0; display(); num--; num1++; if(num == 0) { num = 6; } if(num1 == 6) { num1 = 0; } } if(counter == 200)//定时到4秒后，流水灯向右流动 { counter = 0;//counter清零， //关闭定时器0 TR0 = 0; //ET0 = 0; flag = 1; //标志变量置1后，定时器重新初始化 TH0 = 0xB8; //定时器0定时20毫秒 TL0 = 0x00; TR0 = 1; //重新打开定时器0 //ET0 = 1; j = 0; } } } //定时器初始化程序 void init() { //定时器0和定时器1初始化函数 TMOD = 0x11;//定义定时器1和0在工作方式1下 TH0 = 0xB8; //定时器0定时20毫秒 TL0 = 0x00; TH1 = 0xFC; //定时器1定时20毫秒 = 0x67; TR0 = 1; //打开定时器0 TR1 = 1; //打开定时器1 EA = 1; //打开总中断 ET0 = 1; //打开定时器0中断 ET1 = 1; //打开定时器1中断 } //数码管显示子程序 void display() { dula = 1; P0 = table_du[num]; dula = 0; P0 = 0xff; wela = 1; P0 = table_we[num1]; wela = 0; dula = 1; P0 = table_du[num]; dula = 0; P0 = 0xff; wela = 1; P0 = table_we[num1]; wela = 0; dula = 1; P0 = table_du[num]; dula = 0; P0 = 0xff; wela = 1; P0 = table_we[num1]; wela = 0; dula = 1; P0 = table_du[num]; dula = 0; P0 = 0xff; wela = 1; P0 = table_we[num1]; wela = 0; dula = 1; P0 = table_du[num]; dula = 0; P0 = 0xff; wela = 1; P0 = table_we[num1]; wela = 0; dula = 1; P0 = table_du[num]; dula = 0; P0 = 0xff; wela = 1; P0 = table_we[num1]; wela = 0; } //中断定时器0 void int_time0() interrupt 1 { TH0 = 0xB8; TL0 = 0x00; counter++; if(flag == 0) { if(counter % 10 == 0)//定时200毫秒 { P1 = ~(1 << j++);//流水灯左移流动 if(j == 8) { j = 0; } } } else { if(counter % 5 == 0) { //counter = 0; //流水灯右移流动 P1 = ~(0x80 >> j++); FM = ~FM; if(j == 8) j = 0; } } } //中断定时器1 void int_time1() interrupt 3 { TH1 = 0xFC; TL1 = 0x67; counter1++; }
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