基于proteus8的51单片机的交通灯仿真.zip

#include<reg51.h> sbit led_red = P1 ^ 0; sbit led_yellow = P1 ^ 1; sbit led_green = P1 ^ 2; sbit led_red1 = P1 ^ 3; sbit led_yellow1 = P1 ^ 4; sbit led_green1 = P1 ^ 5; unsigned int i = 0; unsigned int j = 0; unsigned char code LedChar[] ={0xC0, 0xF9, 0xA4, 0xB0, 0x99, 0x92, 0x82, 0xF8, 0x80, 0x90 }; //0 1 2 3 4 5 6 7 8 9 static unsigned int sec = 5; static unsigned char togle_flag = 0; static unsigned char rg_flag = 0; static unsigned char skip_yellow = 0; static unsigned char fs = 0; void timer0(){ TMOD = 0x01; TH0 = (65536-50000)/256; TL0 = (65536-50000)%256; EA = 1; ET0 = 1; TR0 = 1; } void tcount() interrupt 1 { TH0 = (65536-50000)/256; TL0 = (65536-50000)%256; i++; } void display(){ //P0 = 0x01; P0 = 0x05; P2 = LedChar[sec % 10]; // P3 = LedChar[(sec + 5) % 10]; // enhance the refresh rate P0 = 0x00; P2 = 0xFF; P3 = 0xFF; //P0 = 0x02; P0 = 0x10; P2 = LedChar[sec / 10]; // P3 = LedChar[(sec + 5) / 10]; // enhance the refresh rate P0 = 0x00; P2 = 0xFF; P3 = 0xFF; } void first() { while(!togle_flag){ display(); if(i == 20) { // if (!rg_flag) { led_green = 0; led_green1 = !led_green; } else { led_red = 0; led_red1 = !led_red; } i = 0; if (sec > 0) sec--; else { if (rg_flag) { togle_flag = 0; sec = 5; skip_yellow = 1; } else if (!rg_flag){ togle_flag = 1; sec = 3; skip_yellow = 0; } rg_flag = !rg_flag; led_green = 1; led_red = 1; } } } while (togle_flag) { if (skip_yellow) { togle_flag = !togle_flag; sec = 5; } else { display(); if(i == 20) { // led_yellow = 0; led_yellow1 = 0; i = 0; // if (sec > 0) sec--; else { sec = 5; togle_flag = !togle_flag; led_yellow = 1; led_yellow1 = 1; } } } } } void main(){ timer0(); while (1) { first(); } }