仿真原理图如下(proteus仿真工程文件可到本帖附件中下载)
仿真图
单片机源程序如下:
- #include <REGX51.H>
- #define LED P0
- unsigned char code table[ ]={0x77, 0x7c, 0x39, 0x5e, 0x79, 0x71, 0x6f};
- int i = 0, j = 0;
- void Init(){
- TMOD=0x01; //T0工作在方式1
- TH0=(65536-250)/256;
- TL0=(65536-250)%256;
- EA = ET0 = TR0 = 1;
- }
- void main(){
- Init();
- while(1){
- LED = table[j];
- }
- }
- void ti() interrupt 1 {
- i++;
- if(i == 4000){
- i = 0;
- if(j == 6)j = 0;
- else j++;
- }
- TL0=(65536-250)%256;
- TH0=(65536-250)/256;
- }
复制代码 Proteus7.5版本的仿真工程下载:
A-G依次亮起.zip
(14.61 KB, 下载次数: 10)
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