交通信号灯C语言源程序.doc

#include reg51.h#include absacc.hsbit SN_LED_RED=P13;sbit SN_LED_GREEN=P15;sbit SN_LED_YELLOW=P14;sbit EW_LED_RED=P10;sbit EW_LED_GREEN=P12;sbit EW_LED_YELLOW=P11;unsigned char code disptab = 0xC0,0xF9,0xA4,0xB0,0x99,0x92,0x82,0xF8,0x80, 0x90,0x88,0x83,0xC6,0xA1,0x86,0x8E,0xFF; unsigned char code bittab = 0xFE,0xFD,0xFB,0xF7,0xEF,0xDF,0xBF,0x7F;unsigned char num=0; /数码管序号unsigned char led = 0x3f,0x06,0x5b,0x4f,0x66,0x6d,0x7d,0x07,0x7f,0x6f;char set_value4 = 60,4,40,4; /设置数码管在显示值 unsigned char sign4=1,0,0,0; unsigned char disp_ew,disp_sn; unsigned char falsh_sign,direction_sign,flash_count; unsigned int secnum; unsigned char key; void delay_ms(unsigned int a);void add_process();void sub_process();void set_process();void scan_key();void init();void delay_ms(unsigned int a)unsigned char i;while(a-)i=70;while(i-);void add_process()delay_ms(600);if(!P32)delay_ms(500);if(P32)if(key = 1)set_value0 = set_value0 + 10;if(set_value0 99)set_value0 = set_value0 % 10;disp_ew = set_value0;if(key = 2)set_value1+;if(set_value1 9)set_value1 = 0;disp_ew = set_value1;if(key = 3)set_value2 = set_value2 + 10;if(set_value2 99)set_value2 = set_value2 % 10;disp_sn = set_value2;if(key = 4)set_value3+;if(set_value3 9)set_value3 = 0;disp_sn = set_value3; while(!P32)if(key = 1)set_value0 = set_value0 + 10;if(set_value0 99)set_value0 = set_value0 % 10;disp_ew = set_value0;if(key = 2)set_value1+;if(set_value1 9)set_value1 = 0;disp_ew = set_value1;if(key = 3)set_value2 = set_value2 + 10;if(set_value2 99)set_value2 = set_value2 % 10;disp_sn = set_value2;if(key = 4)set_value3+;if(set_value3 9)set_value3 = 0;disp_sn = set_value3;delay_ms(1200);elsewhile(!P32);if(key = 1)set_value0+;if(set_value0 99)set_value0 = 0;disp_ew = set_value0;if(key = 2)set_value1+;if(set_value1 9)set_value1 = 0;disp_ew = set_value1;if(key = 3)set_value2+;if(set_value2 99)set_value2 = 0;disp_sn = set_value2;if(key = 4)set_value3+;if(set_value3 9)set_value3 = 0;disp_sn = set_value3;void sub_process()delay_ms(600);if(!P33)delay_ms(500);if(P33)while(!P33);if(key = 1)set_value0 = set_value0 - 10;if(set_value0 0)set_value0 = set_value0 + 100;disp_ew = set_value0;if(key = 2)set_value1-;if(set_value1 0)set_value1 = 9;disp_ew = set_value1;if(key = 3)set_value2 = set_value2 - 10;if(set_value2 0)set_value2 = set_value2 + 100;disp_sn = set_value2;if(key = 4)set_value3-;if(set_value3 0)set_value3 = 9;disp_sn = set_value3;while(!P33)if(key = 1)set_value0 = set_value0 - 10;if(set_value0 0)set_value0 = set_value0 + 100;disp_ew = set_value0;if(key = 2)set_value1-;if(set_value1 0)set_value1 = 9;disp_ew = set_value1;if(key = 3)set_value2 = set_value2 - 10;if(set_value2 0)set_value2 = set_value2 + 100;disp_sn = set_value2;if(key = 4)set_value3-;if(set_value3 0)set_value3 = 9;disp_sn = set_value3;delay_ms(1200);elsewhile(!P33);if(key = 1)set_value0-;if(set_value0 0)set_value0 = 99;disp_ew = set_value0;if(key = 2)set_value1-;if(set_value1 0)set_value1 = 9;disp_ew = set_value1;if(key = 3)set_value2-;if(set_value2 0)set_value2 = 99;disp_sn = set_value2;if(key = 4)set_value3-;if(set_value3 5)key = 1;if(key = 1)disp_ew = set_value0;P1 = 0xfb;direction_sign = 1;if(key = 2)disp_ew = set_value1;P1 = 0xfd;direction_sign = 1;if(key = 3)disp_sn = set_value2;P1 = 0xdf;direction_sign = 2;if(key = 4)disp_sn = set_value3;P1 = 0xef;direction_sign = 2;if(key = 5)disp_sn = set_value0 + set_value1;disp_ew = set_value0;P1 = 0xf3;falsh_sign = 0;ET1 = 1;TR1 = 1;void scan_key()while(P30 & P32 & P33);delay_ms(15);if(!P30)set_process();if(!P32)add_process();if(!P33)sub_process();else return ;void disp_t0(void) interrupt 1TR0 = 0;num+;num=(num%4);P2=0xff;P0=0xff;P2=bittabnum;switch(num)case 0:P0=disptabdisp_sn%10;break;case 1:P0=disptabdisp_sn/10;break;case 2:P0=disptabdisp_ew%10;break;case 3:P0=disptabdisp_ew/10;break;default:;TH0 = 0xD8; TL0 = 0xF0;TR0 = 1;void disp_count_t1(void) interrupt 3TH1 = 0x3C;TL1 = 0xB0;secnum+;if(secnum = 20)disp_sn-;disp_ew-;if(disp_ew = 0 & sign0 =1)disp_ew = set_value1;EW_LED_GREEN=1;EW_LED_YELLOW =0;sign1=1;sign0=0;if(disp_ew = 0 & sign1 =1)disp_ew = set_value2 + set_value3;disp_sn = set_value2;SN_LED_RED =1;EW_LED_YELLOW =1;EW_LED_RED =0;SN_LED_GREEN =0;sign2 =1;sign1 =0;if(disp_sn = 0 & sign2 = 1 )disp_sn = set_value3;SN_LED_GREEN = 1;SN_LED_YELLOW = 0;sign3 = 1;sign2 = 0; if(disp_sn = 0 & sign3 = 1) disp_sn = set_value0 + set_value1;disp_ew = set_value0;EW_LED_RED = 1;SN_LED_YELLOW = 1;EW_LED_GREEN = 0;SN_LED_RED = 0;sign0 = 1;sign3 = 0; secnum = 0; void init()direction_sign = 0;falsh_sign = 0;flash_count = 0;secnum = 0;key =