#include
#include?“1602.h“
sbit?GPS_SPD=P2^1;?//GPS模塊速率設置
sbit?KEY1=P2^0;?//顯示內容分屏切換
char?code?TIME_AREA=?8;?//時區(qū)
//GPS數(shù)據(jù)存儲數(shù)組
unsigned?char?JD[10];?//經(jīng)度
unsigned?char?JD_a;?//經(jīng)度方向
unsigned?char?WD[9];?//緯度
unsigned?char?WD_a;?//緯度方向
unsigned?char?date[6];?//日期
unsigned?char?time[6];?//時間
unsigned?char?speed[5]={‘0‘‘0‘‘0‘‘0‘‘0‘};?//速度
unsigned?char?high[6];?//高度
unsigned?char?angle[5];?//方位角
unsigned?char?use_sat[2];?//使用的衛(wèi)星數(shù)
unsigned?char?total_sat[2];?//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;?//逗號計數(shù)器
unsigned?char?dot_count;?//小數(shù)點計數(shù)器
unsigned?char?byte_count;?//位數(shù)計數(shù)器
unsigned?char?cmd_number;?//命令類型
unsigned?char?mode;?//0：結束模式，1：命令模式，2：數(shù)據(jù)模式
unsigned?char?buf_full;?//1：整句接收完成，相應數(shù)據(jù)有效。0：緩存數(shù)據(jù)無效。
unsigned?char?cmd[5];?//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)計數(shù)器
unsigned?char?time_count;
bit?page;
void?sys_init（void）;
bit?chk_key（void）;
void?ser_init（）
{
????TMOD=0X20;//設置定時器T1為工作方式2
	TR1=1;//啟動定時器T1
	TH1=0xfd;//T1定時器裝初值
	TL1=0xfd;
	REN=1;//允許串口接收
	SM0=0;
	SM1=1;//設置串口工作方式1
	ES=1;//開串口中斷
	EA=1;//開總中斷


}
main（）
{
unsigned?char?i;
char?Bhour;
sys_init（）;
lock=1;
use_sat[0]=‘0‘;
use_sat[1]=‘0‘;
total_sat[0]=‘0‘;
total_sat[1]=‘0‘;
while（1）{
?????if（buf_full==0）?//無GPS信號時
{
dsp_count++;
if（dsp_count>=65000）{
LCD_cls（）;?//清屏
LCD_write_string（00“No?GPS?connect..“）;
LCD_write_string（01“Please?Check..“）;
while（buf_full==0）;
LCD_cls（）;
dsp_count=0;
}
}
else{?//有GPS信號時
if（chk_key（））{?//檢測到按鍵切換顯示
page=!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（00“*---.--.----??“）;
LCD_write_string（01“*?--.--.----??“）;
}else{?//如果已定位
????LCD_write_char（00JD_a）;?//顯示經(jīng)度
for（i=0;i<10;i++）{
??LCD_write_char（i+10JD[i]）;
}
LCD_write_char（01WD_a）;?//顯示緯度
LCD_write_char（11‘?‘）;
for（i=0;i<9;i++）{
LCD_write_char（i+21WD[i]）;
}
}
LCD_write_char（141use_sat[0]）;?//顯示接收衛(wèi)星數(shù)
LCD_write_char（151use_sat[1]）;
buf_full&=~0x01;
dsp_count=0;
}
if（buf_full|0x02）{?//GSV語句
LCD_write_char（141total_sat[0]）;
LCD_write_char（151total_sat[1]）;
buf_full&=~0x02;
dsp_count=0;
}
if（buf_full|0x04）{
if（lock==0）{?//如果未定位
LCD_write_string（00“*---.--.----??“）;
LCD_write_string（01“*?--.--.----??“）;
}else{?//如果已定位
?????????????LCD_write_char（00JD_a）;?//顯示經(jīng)度
for（i=0;i<10;i++）{
??LCD_write_char（i+10JD[i]）;
}
LCD_write_char（01WD_a）;?//顯示緯度
LCD_write_char（11‘?‘）;
for（i=0;i<9;i++）{
LCD_write_char（i+21WD[i]）;
}
}
LCD_write_char（140use_sat[0]）;?//顯示接收衛(wèi)星數(shù)
LCD_write_char（150use_sat[1]）;
buf_full&=~0x04;
dsp_count=0;
}
}
else{?//頁面2
if（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=（（time[0]-0x30）*10+time[1]-0x30）+TIME_AREA;
if（Bhour>=24）{
Bhour-=24;
}else?if（Bhour<0）{
Bhour+=24;
}
LCD_write_char（01date[4]）;
LCD_write_char（11date[5]）;
LCD_writ

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----

?????文件??????20731??2016-01-06?15:59??gps數(shù)據(jù)分離\GPS\1602

?????文件???????8501??2016-01-06?14:45??gps數(shù)據(jù)分離\GPS\1602.c

?????文件???????3686??2016-01-06?13:28??gps數(shù)據(jù)分離\GPS\1602.h

?????文件???????6300??2016-01-06?15:59??gps數(shù)據(jù)分離\GPS\1602.hex

?????文件??????16863??2016-01-06?14:45??gps數(shù)據(jù)分離\GPS\1602.LST

?????文件??????29095??2016-01-06?15:59??gps數(shù)據(jù)分離\GPS\1602.M51

?????文件??????25346??2016-01-06?14:45??gps數(shù)據(jù)分離\GPS\1602.OBJ

?????文件???????1140??2016-01-06?15:59??gps數(shù)據(jù)分離\GPS\1602.Opt

?????文件????????421??2016-01-06?15:59??gps數(shù)據(jù)分離\GPS\1602.plg

?????文件???????1990??2016-01-06?15:04??gps數(shù)據(jù)分離\GPS\1602.Uv2

????.......??????1141??2016-01-06?15:59??gps數(shù)據(jù)分離\GPS\1602_Opt.Bak

????.......?????????0??2016-01-06?13:01??gps數(shù)據(jù)分離\GPS\1602_Uv2.Bak

?????文件????1109623??2016-01-03?14:27??gps數(shù)據(jù)分離\對于GPS模塊數(shù)據(jù)接收和提取的問題分析?-?telezhaohu的日志?-?電子工程世界-論壇.pdf

?????目錄??????????0??2016-01-06?15:59??gps數(shù)據(jù)分離\GPS

?????目錄??????????0??2016-01-06?16:12??gps數(shù)據(jù)分離

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??????????????1224837????????????????????15