出租车计价器源程序.doc

/* C51* * * * * Sunday, July 01 2012* */#include#include#include#define uchar unsigned char#define uint unsigned int#define _NOP_(); _nop_();_nop_();_nop_();_nop_();#define OP_WRITE 0xa0 / #define OP_READ 0xa1 / #define key_set 0/ = P33;#define key_down 1/ = P34;#define key_up 2/ = P35;#define key_ok 3/= P36;/* USR_DAT ,PRESET_DAT saved daytime: distance,price,night: distance,priceTIME : hour , min , sec*/uchar data USR_DAT4 = 3,2,3,6;/uchar PRESET_DAT4 = 3,2,3,3;uchar data ITEMS3 = 0,0,0;/-uchar data TIME3 = 0,0,12;/-uchar cycle_time; /100-5km/h,1.44s-0.02s72uint stop_time,stop_time_all,mileometer,temp_s,speed;uchar cycle_time_info,lock = 1,lock_items = 1;/;uchar key_pressed_time,key_num;/setuchar hour,min,sec,count;uchar code STR1 = Time:;/uchar code SPACE = ;/uchar code STR2 = S: P: A: ; /uchar code STR3 = Stop time: min;uchar code STR_SET = Setting ;uchar code STR_SET_HOUR = Setting hour ;uchar code STR_SET_MIN = Setting min ;uchar code STR_SET_PRICE = Setting price ;uchar code STR_SET_START = Setting start ;uchar code DAY = Day: ;uchar code NIGHT = Night: ;uchar code STR_RST = Reset? No Y ;sbit lcd_rs = P20;sbit lcd_rw = P21;sbit lcd_e = P22;sbit LED = P11;sbit SDA = P17;sbit SCL = P16;void delay(uchar z);void lcd_write_cmd(uchar cmd);void lcd_write_dat(uchar dat);void lcd_init();void lcd_display(uchar addr,uchar dat);void lcd_display_2(uchar addr,uchar dat);void lcd_display_3(uchar addr,uchar dat);void lcd_write_str(uchar addr,uchar *str);void time0_init();void time1_init();void display_time();void display_reset();void display_items();void display_set_time();void display_stop_time();void ex_int_init();void set_items();uchar key_scan();void key_set_dat();/*24c02*/void start();void stop();uchar shin();bit shout(uchar write_data);void write_byte( uchar addr, uchar write_data);uchar read_current();uchar read_addr(uchar addr);void save_user_dat();void restore_user_dat();void main(void)/uchar set_ok = 0;time0_init();time1_init();ex_int_init();lcd_init();restore_user_dat();while(1)/lcd_display_2(0x02,cycle_time_info);set_items();key_num = key_scan();if(!key_pressed_time)if(lock|(cycle_time = 72)|(stop_time 0)display_stop_time();elsedisplay_time();display_items();elsekey_set_dat();/* key_scan()* * */uchar key_scan()P3 |= 0xfb;if(P3 & 0xfb) != 0xfb)delay(200);if(P3 & 0xfb) != 0xfb)switch (P3 & 0xfb)case 0xeb:return key_down;case 0xdb:return key_up;case 0xf9:return key_ok;default:return 0;/* uchar key_set_dat(uchar key_pressed_time)* set,* /0,1* set* 1. * 2.,* 3.* 4.* */void key_set_dat()switch(key_pressed_time)case 1:display_reset();if(key_num = key_up) /2ITEMS0 = 0;ITEMS2 = 0;mileometer = 0;stop_time_all = 0;cycle_time = 0;key_pressed_time = 0;if(key_num = key_down) /1key_pressed_time +;if(key_num = key_ok)key_pressed_time = 0;/key_num = 0;break;case 2:lcd_write_str(0x80,STR_SET_HOUR);lcd_display(0x40+0x06, -0x30);lcd_display(0x40+0x07, -0x30);display_set_time();/hourif(key_num = key_up)TIME2 +;if(key_num = key_down)TIME2 -;if(key_num = key_ok)key_pressed_time = 0;/ key_num = 0;break;case 3:lcd_write_str(0x80,STR_SET_MIN);lcd_display(0x40+0x09, -0x30);lcd_display(0x40+0x0a, -0x30);display_set_time();if(key_num = key_up)/minTIME1 +;if(key_num = key_down)TIME1 -;if(key_num = key_ok)key_pressed_time = 0;break;case 4:lcd_write_str(0x80,STR_SET_PRICE);lcd_write_str(0x80+0x40,DAY);lcd_display_2(0x40+0x08,USR_DAT1);/lcd_display(0x40+0x09, -0x30);/lcd_display(0x40+0x0a, -0x30);if(key_num = key_up)/minUSR_DAT1 +;if(key_num = key_down)USR_DAT1 -;if(key_num = key_ok)key_pressed_time = 0;break;case 5:lcd_write_str(0x80,STR_SET_PRICE);lcd_write_str(0x80+0x40,NIGHT);lcd_display_2(0x40+0x08,USR_DAT3);/lcd_display(0x40+0x09, -0x30);/lcd_display(0x40+0x0a, -0x30);if(key_num = key_up)/minUSR_DAT3 +;if(key_num = key_down)USR_DAT3 -;if(key_num = key_ok)key_pressed_time = 0;break;case 6:lcd_write_str(0x80,STR_SET_START);lcd_write_str(0x80+0x40,DAY);lcd_display_2(0x40+0x08,USR_DAT0);/lcd_display(0x40+0x09, -0x30);/lcd_display(0x40+0x0a, -0x30);if(key_num = key_up)/minUSR_DAT0 +;if(key_num = key_down)USR_DAT0 -;if(key_num = key_ok)key_pressed_time = 0;break;case 7:lcd_write_str(0x80,STR_SET_START);lcd_write_str(0x80+0x40,NIGHT);lcd_display_2(0x40+0x08,USR_DAT2);/lcd_display(0x40+0x09, -0x30);/lcd_display(0x40+0x0a, -0x30);if(key_num = key_up)/minUSR_DAT2 +;if(key_num = key_down)USR_DAT2 -;if(key_num = key_ok)key_pressed_time = 0;break;default:key_pressed_time = 0;/save_user_dat();_-WARNING L15: MULTIPLE CALL TO SEGMENT/* set_items()* * ITEMS* */void set_items()ITEMS0 = (mileometer * 2)/1000;/*while(lock_items)temp_s = ITEMS0;lock_items -;lcd_display(0x0d,lock_items);*/if(TIME2 18 | TIME2 USR_DAT2)/*if(ITEMS0 - temp_s) != 0)ITEMS2 += ITEMS1;lock_items +;*/ITEMS2 = (ITEMS0 - USR_DAT2)*ITEMS1 + 5 + stop_time_all/300;elseITEMS2 = 5 + stop_time_all/300; / 5 elseITEMS1 = USR_DAT1; /ITEMS0 ITEMS1 ITEMS2if(ITEMS0 USR_DAT0)/*if(ITEMS0 - temp_s) != 0)ITEMS2 += ITEMS1;lock_items +;*/ITEMS2 = (ITEMS0 - USR_DAT0)*ITEMS1 + 5 + stop_time_all/300;elseITEMS2 = 5 + stop_time_all/300;/* ex_int_init()* * */void ex_int_init()EX0 = 1;IT0 = 1;IP = 0x0a;/0,1EX1 = 1;IT1 = 1;/* ex1_int() interrupt 2* USR_DAT* */void ex1_int() interrupt 2EX1 = 0;delay(200);EX1 = 1;key_pressed_time +;/* void ex_int() interrupt 0* */void ex0_int() interrupt 0if(cycle_time = 72)|(stop_time 0) /5km/hstop_time_all += (stop_time + cycle_time/50);cycle_time_info +;elsecycle_time_info = 10;if(cycle_time_info 10)lock = 1;elselock = 0;stop_time = 0;cycle_time = 0;/if(stop_time_all = 300)/ITEMS2 += stop_time_all/300;/stop_time_all %= 300;/else/while(lock) /*/lock -;/stop_time = sec;/stop_time/;/display_stop_time();/*/ * display_stop_time 1s display_time */if(sec - stop_time) != 0)/display_time();/stop_time = 0;/lock + ;/mileometer + ;if(mileometer%2 = 0)LED = !LED;/* void time1_init()* 1,* */void time1_init()TMOD = TMOD | 0x10;TH1 = (65535 - 20000)/256;TL1 = (65535 - 20000)%256;EA = 1;ET1 = 1; /TR1 = 1; /* void time1() interrupt 3* * */void time1() interrupt 3TH1 = (65535 - 20000)/256;TL1 = (65535 - 20000)%256;cycle_time +;if(cycle_time = 100) /100stop_time += 2;cycle_time = 0;/lcd_display_3(0x40+ 0x02,stop_time);/lcd_display_3(0x40+ 0x06,cycle_time);/* void display_set_time()* * */void display_set_time()/lcd_write_str(0x80,STR_SET);lcd_write_str(0x80+0x40,STR1);lcd_display(0x40+0x08,-0x30);lcd_display(0x40+0x0b,-0x30);lcd_display(0x40+0x0e, -0x30);lcd_display_2(0x40+0x06,TIME2);lcd_display_2(0x40+0x09,TIME1);lcd_display_2(0x40+0x0c,TIME0);/* display_reset()* * Setting* Reset? No Y* */void display_reset()lcd_write_str(0x80,STR_SET);lcd_write_str(0x80+0x40,STR_RST);/* display_stop_time()* 5km/h* Stop time:00 min* */void display_stop_time()lcd_write_str(0x80,STR3);lcd_display_2(0x0a,stop_time_all/60);/* display_items()* * S: P: A:* */void display_items()/lcd_write_str(0x80+0x40,STR2); /lcd_display(0x40+0x00,S-0x30);lcd_display(0x40+0x01,:-0x30);lcd_display(0x40+0x04, -0x30);lcd_display(0x40+0x05,P-0x30);lcd_display(0x40+0x06,:-0x30);lcd_display(0x40+0x09, -0x30);lcd_display(0x40+0x0a,-0x2f);/$lcd_display(0x40+0x0b,:-0x30);lcd_display_2(0x40+0x02,ITEMS0); /lcd_display_2(0x40+0x07,ITEMS1); /lcd_display_3(0x40+0x0c,ITEMS2); /* display_time()* lcd* Time: 00-00-00* */void display_time()lcd_write_str(0x80,STR1);lcd_display(0x06, -0x30);lcd_display(0x09,-0x30);lcd_display(0x0c,-0x30);lcd_display_2(0x07,TIME2);lcd_display_2(0x0a,TIME1);lcd_display_2(0x0d,TIME0);lcd_display(0x0f, -0x30);/* void time0_init()* 0,* */void time0_init()TMOD = TMOD | 0x01;TH0 = (65535 - 50000)/256;TL0 = (65535 - 50000)%256;EA = 1;ET0 = 1; /TR0 = 1; /* void time0() interrupt 1* * */void time0() interrupt 1TH0 = (65535 - 50000)/256;TL0 = (65535 - 50000)%256;count +;if(count = 20)count = 0;TIME0 +;if(60 = TIME0)TIME0 = 0;TIME1 +;save_user_dat(); / 1 minif(60 = TIME1)TIME1 = 0;TIME2 +;if(24 0;x-)for(y=100;y0;y-);/* lcd_write_cmd()* lcd* */void lcd_write_cmd(uchar cmd)XBYTE0xfcff = cmd;delay(1);/* lcd_write_dat()* :lcd* */void lcd_write_dat(uchar dat)XBYTE0xfdff = dat;delay(1);/* lcd_init()* lcd* */void lcd_init()delay(16);lcd_write_cmd(0x3f);delay(5);lcd_write_cmd(0x3f);delay(1);lcd_write_cmd(0x3c);lcd_write_cmd(0x08);/lcd/lcd/lcd_write_cmd(0x38);lcd_write_cmd(0x08);/lcd_write_cmd(0x01);/lcd_write_cmd(0x03);/lcd_write_cmd(0x0c);/lcd_write_cmd(0x06);/* lcd_display(uchar addr,uchar dat)* addr,0x40+addrascii* * */void lcd_display(uchar addr,uchar dat)lcd_write_cmd(0x80 + addr);lcd_write_dat(dat + 0x30);/ascii/* lcd_display_2(uchar addr,uchar dat)* addr,0x40+addrascii* * */void lcd_display_2(uchar addr,uchar dat)lcd_write_cmd(0x80 + addr);lcd_write_dat(dat/10 + 0x30);/asciilcd_write_dat(dat%10 + 0x30);/* lcd_display_3(uchar addr,uchar dat)* addr,0x40+addrascii* * */void lcd_display_3(uchar addr,uchar dat)lcd_write_cmd(0x80 + addr);lcd_write_dat(dat/100 + 0x30);/asciilcd_write_dat(dat%100/10 + 0x30);lcd_write_dat(dat%100%10 + 0x30);/* lcd_write_str* * * */void lcd_write_str(uchar addr,uchar *str)lcd_write_cmd(addr);dolcd_write_dat(*str);str +;while(*str != 0);/* 24C00 */* */void start()SDA = 1;SCL = 1;_NOP_();SDA = 0;_NOP_();SCL = 0;