C语言编写的交通信号灯源程序.docx

1、C语言编写的交通信号灯源程序#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; unsigne

2、d char code bittab = 0xFE,0xFD,0xFB,0xF7,0xEF,0xDF,0xBF,0x7F;unsigned char num=0;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_cou

3、nt; 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

4、(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

5、; 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) se

6、t_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); else while(!P32); if(key = 1) set_value0+; if(set_value0 99) set_value0 = 0; disp_ew = set_value0; if(key

7、= 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)

8、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_

9、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;

10、 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); else while(!P33); if(key = 1) set_value0-; if(set_value0 0) set_value0 = 99; disp_ew = set_

11、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) dis

12、p_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 s

13、can_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 1 TR0 = 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/1

14、0; 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 3 TH1 = 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; E

15、W_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 =

16、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 = 0; P0 = 0xff; disp_sn = set_value0 + set_value1; disp_ew = set_value0; EW_LED_GREEN = 0; SN_LED_RED = 0; P3=0xf8; TMOD = 0x11; TH0 = 0xD8; TL0 = 0xF0; TH1 = 0x3C; TL1 = 0xB0; EA = 1; TR0 = 1; ET0 = 1; TR1 = 1; ET1 = 1;void main() init(); while(1) scan_key();