單片機(jī)解析GPS最新程序

1、這其中包括1602驅(qū)動頭文件，和解析主程序，使用時(shí)分開粘貼到對應(yīng)的 文件中/*LCD1602驅(qū)動，兼容LCD2402*/sbit LCD_DB0= P00;sbit LCD_DB1= P01;sbit LCD_DB2= P02;sbit LCD_DB3= P03;sbit LCD_DB4= P04;sbit LCD_DB5= P05;sbit LCD_DB6= P06;sbit LCD_DB7= P07;sbit LCD1602_RS=P24;sbit LCD1602_RW=P25; sbit LCD1602_EN=P26;void LCD_write_char( unsigned x,uns

2、igned char y,unsigned char dat);/在指定位置顯示字符void LCD_write_string(unsigned char X,unsigned char Y,unsigned char *s);/在指定位置顯示字符串void LCD_cls(void);/清屏void LCD_en_command(unsigned char command);void LCD_en_dat(unsigned char temp);void LCD_set_xy( unsigned char x, unsigned char y );void LCD_init(unsigned

3、 char bw);void SET_LCD(unsigned char IO_temp);void delayms(unsigned char ms);void lcddelay(void);unsigned char LCDIO; unsigned char BitWidth;void LCD_cls(void)LCD_en_command(0x01);/0x01 清屏 delayms(2);void LCD_en_command(unsigned char command)LCD1602_RS=0; LCD1602_RW=0;LCD1602_EN=0;switch(BitWidth) c

4、ase 4:LCDIO=(command & 0xf0); /取高4位break; case 8:LCDIO=command; break;SET_LCD(LCDIO);LCD1602_EN=1;lcddelay();LCD1602_EN=0;if (BitWidth=4)LCDIO=(command & 0x0f)<<4;/取低4位SET_LCD(LCDIO);LCD1602_EN=1;lcddelay();LCD1602_EN=0;void SET_LCD(unsigned char IO_temp) /高4位LCD_DB7=IO_temp&0x80;L

5、CD_DB6=IO_temp&0x40;LCD_DB5=IO_temp&0x20;LCD_DB4=IO_temp&0x10;/低4位if (BitWidth=8)LCD_DB3=IO_temp&0x08;LCD_DB2=IO_temp&0x04;LCD_DB1=IO_temp&0x02;LCD_DB0=IO_temp&0x01;void LCD_en_dat(unsigned char dat)LCD1602_RS=1;LCD1602_RW=0;LCD1602_EN=0;switch(BitWidth) case 4:LCDIO=(dat

6、 & 0xf0); /取高4位break; case 8:LCDIO=dat;break;SET_LCD(LCDIO);LCD1602_EN=1;lcddelay();LCD1602_EN=0;if (BitWidth=4)LCDIO=(dat & 0x0f)<<4; /取低4位SET_LCD(LCDIO);LCD1602_EN=1;lcddelay();LCD1602_EN=0;/*=*1602* 輸入?yún)?shù)：x、y : 顯示字符串的坐標(biāo)，X:0-15，Y:0-1*LCD第一行顯示寄存器地址：0X80-0X8F*LCD第二行顯示寄存器地址：0XC0-0XCF *24

7、04*LCD第1行顯示地址:120(0x800x93) *LCD第2行顯示地址:120(0xc00xd3) *LCD第3行顯示地址:120(0x940xa7) *LCD第4行顯示地址:120(0xd40xe7) =*/ void LCD_set_xy( unsigned char x, unsigned char y )unsigned char address;if (y =0) address = 0x80 + x;else if(y=1) address = 0xC0 + x; else if(y=2) address = 0x94 + x;else if(y=3) address =

8、0xD4 + x;LCD_en_command(address); void LCD_write_char( unsigned x,unsigned char y,unsigned char dat)LCD_set_xy( x, y ); LCD_en_dat(dat);void LCD_write_string(unsigned char X,unsigned char Y,unsigned char *s) LCD_set_xy( X, Y ); /set address while (*s) / write character LCDIO=*s;SET_LCD(LCDIO);LCD_en

9、_dat(*s); s +; void LCD_init(unsigned char bw)BitWidth=bw;switch(BitWidth) case 4:LCD_en_command(0x33);/delayms(20);LCD_en_command(0x32);/delayms(20);break; case 8:LCD_en_command(0x38);/delayms(20);LCD_en_command(0x38);/delayms(20);break;LCD_en_command(0x08);/0x08 令顯示器off delayms(5);LCD_en_command(0

10、x01);/0x01 清屏清屏指令delayms(5);LCD_en_command(0x06);/0x06 光標(biāo)模式設(shè)置進(jìn)入模式設(shè)置指令 寫入數(shù)據(jù)后光標(biāo)右移delayms(5);LCD_en_command(0x0c);/0x0c 顯示開 令光標(biāo),0x0c=不顯示,0x0d=顯示閃動delayms(5);void delayms(unsigned char ms)unsigned char i;while(ms-)for(i = 0; i < 115; i+);void lcddelay(void)unsigned char i;for(i = 0; i < 2; i+);/*G

11、PS解碼顯示程序,*/#include<reg52.h>#include "1602.h"/#include"math.h"/#include <stdlib.h>sbit GPS_SPD=P32;/GPS模塊速率設(shè)置sbit KEY1=P33;/顯示內(nèi)容分屏切換,(T0,T1引腳 的第二功能為計(jì)數(shù)器。)char code TIME_AREA= 8;/時(shí)區(qū)/* 這是做的部分更改*/unsigned long maxspeed,b;unsigned int count=0;unsigned int a5;unsigned char

12、hspeed5;unsigned int dot_count;/小數(shù)點(diǎn)計(jì)數(shù)器/unsigned char x;/GPS數(shù)據(jù)存儲數(shù)組unsigned char JD10;/經(jīng)度unsigned char JD_a;/經(jīng)度方向unsigned char WD9;/緯度unsigned char WD_a;/緯度方向unsigned char date6;/日期unsigned char time6;/時(shí)間unsigned char speed5='0','0','0','.','0'/速度unsigned char h

13、igh6;/高度unsigned char angle5='0','0','0','0','0'/方位角unsigned char use_sat2;/使用的衛(wèi)星數(shù)unsigned char total_sat2;/天空中總衛(wèi)星數(shù)unsigned char lock;/定位狀態(tài)/串口中斷需要的變量unsigned char seg_count;/逗號計(jì)數(shù)器unsigned char byte_count;/位數(shù)計(jì)數(shù)器unsigned char cmd_number;/命令類型unsigned char mode;/

14、0：結(jié)束模式，1：命令模式，2：數(shù)據(jù)模式unsigned char buf_full;/1：整句接收完成，相應(yīng)數(shù)據(jù)有效。0：緩存數(shù)據(jù)無效。unsigned char cmd5;/命令類型存儲數(shù)組/顯示需要的變量unsigned int dsp_count;/刷新次數(shù)計(jì)數(shù)器/unsigned char time_count;bit page;void sys_init(void);bit chk_key(void);main()unsigned char i;char Bhour;sys_init();lock=1;use_sat0='0'use_sat1='0'

15、total_sat0='0'total_sat1='0'while(1) if(buf_full=0)/無GPS信號時(shí)dsp_count+;if(dsp_count>=65000)LCD_cls();/清屏LCD_write_string(0,0,"No GPS connect.");LCD_write_string(0,1,"Please Check.");while(buf_full=0);LCD_cls();dsp_count=0;else/有GPS信號時(shí) if(chk_key()/檢測到按鍵切換顯示page=

16、!page;LCD_cls();if(!page)/頁面1 if(buf_full|0x01)/GGA語句if(lock=0)/如果未定位LCD_write_string(0,0,"*-.-.- ");LCD_write_string(0,1,"* -.-.- ");else/如果已定位 LCD_write_char(0,0,JD_a);/顯示經(jīng)度 for(i=0;i<3;i+) LCD_write_char(i+1,0,JDi); LCD_write_char(4,0,'.'); for(i=3;i<10;i+) LCD_w

17、rite_char(i+2,0,JDi); LCD_write_char(0,1,WD_a);/顯示緯度LCD_write_char(1,1,' '); for(i=0;i<2;i+)LCD_write_char(i+2,1,WDi);LCD_write_char(4,1,'.'); for(i=2;i<9;i+)LCD_write_char(i+3,1,WDi);LCD_write_char(14,1,use_sat0);/顯示接收衛(wèi)星數(shù)LCD_write_char(15,1,use_sat1);buf_full&=0x01;dsp_cou

18、nt=0;if(buf_full|0x02)/GSV語句LCD_write_char(14,1,total_sat0);LCD_write_char(15,1,total_sat1);buf_full&=0x02;dsp_count=0;if(buf_full|0x04)if(lock=0)/如果未定位LCD_write_string(0,0,"*-.-.- ");LCD_write_string(0,1,"* -.-.- ");else/如果已定位 LCD_write_char(0,0,JD_a);/顯示經(jīng)度 for(i=0;i<3;i+

19、) LCD_write_char(i+1,0,JDi); LCD_write_char(4,0,'.'); for(i=3;i<10;i+) LCD_write_char(i+2,0,JDi); LCD_write_char(0,1,WD_a);/顯示緯度LCD_write_char(1,1,' '); for(i=0;i<2;i+)LCD_write_char(i+2,1,WDi);LCD_write_char(4,1,'.'); for(i=2;i<9;i+)LCD_write_char(i+3,1,WDi); LCD_wr

20、ite_char(14,0,use_sat0);/顯示接收衛(wèi)星數(shù)LCD_write_char(15,0,use_sat1);buf_full&=0x04;dsp_count=0;else/頁面2if(buf_full|0x01)/GGA語句buf_full&=0x01;dsp_count=0;if(buf_full|0x02)buf_full&=0x02;dsp_count=0;if(buf_full|0x04)/RMC語句Bhour=(time0-0x30)*10+time1-0x30)+TIME_AREA;if(Bhour>=24)Bhour-=24;else

21、 if(Bhour<0)Bhour+=24;LCD_write_char(0,1,date4);LCD_write_char(1,1,date5);LCD_write_char(2,1,date2);LCD_write_char(3,1,date3);LCD_write_char(4,1,date0);LCD_write_char(5,1,date1);LCD_write_char(8,1,Bhour/10+0x30);LCD_write_char(9,1,Bhour%10+0x30);LCD_write_char(10,1,':');LCD_write_char(11,

22、1,time2);LCD_write_char(12,1,time3);LCD_write_char(13,1,':');LCD_write_char(14,1,time4);LCD_write_char(15,1,time5);LCD_write_string(5,0,"knot A"); /在此處做的更改if(lock='0')/如果未定位LCD_write_string(0,0,"-.-");LCD_write_string(11,0,"-.-");else /已經(jīng)定位,在此處做的改動。/*/*最

23、大速度處理*/ dot_count=0; b=0; for(i=0;i<5;i+) if(speedi!='.') dot_count+; else break ; switch(dot_count) case 1: b=(speed0-'0')*10+(speed2-'0')*1.852; break; case 2: b=(speed0-'0')*100+(speed1-'0')*10+(speed4-'0')*1.852; break; case 3: b=(speed0-'0&

24、#39;)*1000+(speed1-'0')*100+(speed2-'0')*10+(speed4-'0')*1.852; break; if(b>maxspeed) maxspeed=b; /*最大速度處理*/ if(count<10) for(i=0;i<5;i+)LCD_write_char(i,0,speedi);/knot顯示count+; else if(count>15) count=0; hspeed0=maxspeed/1000+0x30; /把小數(shù)轉(zhuǎn)成字符數(shù)組 hspeed1=(maxspeed/1

25、00)%10+0x30; hspeed2=(maxspeed/10)%10+0x30; hspeed3='.' hspeed4= maxspeed%10+0x30; count+;LCD_write_string(5,0,"Km/h A"); LCD_write_char(0,0,hspeed0);LCD_write_char(1,0,hspeed1);LCD_write_char(2,0,hspeed2);LCD_write_char(3,0,hspeed3);LCD_write_char(4,0,hspeed4);/最大速度顯 */ /*/ for(i=

26、0;i<5;i+)LCD_write_char(11+i,0,anglei);buf_full&=0x04;dsp_count=0;bit chk_key(void)if(!KEY1)delayms(10);if(!KEY1)while(!KEY1);delayms(10);return(1); LCD_cls();/清屏return(0);/系統(tǒng)初始化void sys_init() unsigned char i;SCON = 0x50; /* SCON: mode 1, 8-bit UART, enable rcvr */TMOD = 0x21; /* TMOD: timer

27、 1, mode 2, 8-bit reload */if(GPS_SPD)TH1 = 0xfa; /* TH1: reload value for 9600 baud 11.059MHz */elseTH1 = 0xfd;/* TH1: reload value for 4800 baud 11.059MHz */TR1 = 1; /* TR1: timer 1 run */LCD_init(8);/初始化LCDLCD_write_string(0,0," GPS SIRF II 2 ");LCD_write_string(0,1," 11-11-23 1342

28、 ");for(i=1;i<4;i+)delayms(250);/LCD_cls();IE=0x90;/開總中斷、串口中斷/串口接收中斷void uart(void) interrupt 4unsigned char tmp;if(RI)tmp=SBUF;switch(tmp)case '$':cmd_number=0;/命令類型清空mode=1;/接收命令模式byte_count=0;/接收位數(shù)清空break;case ',':seg_count+;/逗號計(jì)數(shù)加1byte_count=0;break;case '*':switc

29、h(cmd_number)case 1:buf_full|=0x01;break;case 2:buf_full|=0x02;break;case 3:buf_full|=0x04;break;mode=0;break;default:if(mode=1)/命令種類判斷cmdbyte_count=tmp;/接收字符放入類型緩存if(byte_count>=4)/如果類型數(shù)據(jù)接收完畢，判斷類型if(cmd0='G')if(cmd1='P')if(cmd2='G')if(cmd3='G')if(cmd4='A')

30、cmd_number=1;mode=2;seg_count=0;byte_count=0;else if(cmd3='S')if(cmd4='V')cmd_number=2;mode=2;seg_count=0;byte_count=0;else if(cmd2='R')if(cmd3='M')if(cmd4='C')cmd_number=3;mode=2;seg_count=0;byte_count=0;else if(mode=2)/接收數(shù)據(jù)處理switch (cmd_number)case 1:/類型1數(shù)據(jù)接收。GPGGAswitch(seg_count)case 2:/緯度處理if(byte_count<9)WDbyte_count=tmp;break;case 3:/緯