我的這個程序總是出現一些看不懂的問題。怎么調啊求幫助

ID:313631 · 發表于 2018-4-22 12:27

主程序

#include<reg52.h>
#include<stdio.h>
#include<string.h>
#include"GPS.H"
#include"LCD.H"
#include"DISPLAY.H"
char xdata rev_buf[80]; //接收緩存
uchar xdata rev_start=0; //接收開始標志
uchar xdata rev_stop=0; //接收停止標志
uchar xdata gps_flag=0; //GPS處理標志
uchar xdata change_page=0; //換頁顯示標志
uchar xdata num=0;
void Uart_Init(void)
{
TMOD=0x21;//0010 0001
PCON=0X00;
TH0=0x3c;
TL0=0xb0;
TH1=0xFA;//1111 1010
TL1=0xFA;//1111 1010
TR1=1; //開啟定時器1
REN=1; //允許接收數據
SM0=0;
SM1=1;
TI=0;
RI=0;
EA=1;//開總中斷
ES=1;//串口1中斷允許
ET0=1;//定時器1中斷允許
}
void main(void)//主函數
{
uchar error_num=0;
Lcd_Init();//初始化LCD
GPS_Init();//初始化GPS
rev_stop=0;
REV_NO;
while(1)
{
if(rev_stop) //如果接收完一行
{
TR0=1; //開啟定時器
REV_YES;
if(GPS_RMC_Parse(rev_buf,&GPS)) //解析GPRMC
{
RMC_YES;
GPS_DisplayOne(); //顯示GPS信息
error_num=0;
gps_flag=0;
rev_stop=0;
}
else
{
error_num++;
if(error_num>=20) //如果數據無效超過20次
{
RMC_NO;
error_num=20;
GPS_Init(); //返回初始化
}
gps_flag=0;
rev_stop=0;
REV_NO;
}
}
}
void timer0(void)interrupt 1
{
static uchar count=0;
TH0=0x3c;
TL0=0xb0;
count++;
if(count==200) //2*5秒鐘
{
count=0;
change_page++; //換頁
if(change_page==10)
change_page=0;
}
}
void Uart_Receive(void)interrupt 2
{
uchar ch;
ES=0;
if(RI)
{
ch = SBUF;
if ((ch==')&&(gps_flag==0)) //如果收到字符‘，便開始接收
{
rev_start=1;
rev_stop=0;
}
if(rev_start==1) //標志位為1，開始接收
{
rev_buf[num++]=ch; //字符存到數組中
if(ch=='\n') //如果接收到換行
{
rev_buf[num]='\0';
rev_start=0;
rev_stop=1;
gps_flag=1;
num=0;
}
}
}
RI=0; //RI清0,重新接收
ES=1;
}
}
LCD
#ifndef _LCD_H_
#define _LCD_H_
#include"LCD.H"
void clr_screen()
{
Lcd_WriteCmd(0x34); //擴充指令操作
delay(5);
Lcd_WriteCmd(0x30); //基本指令操作
delay(5);
Lcd_WriteCmd(0x01); //清屏
delay(5);
}
void Lcd_WriteCmd(uchar cmd)
{
LCD_RS=0;
LCD_RW=0;
LCD_EN=0;
_nop_();
_nop_();
P0 = cmd;
DelayNOP();
LCD_EN=1;
DelayNOP();
LCD_EN=0;
}
void Lcd_WriteDat(uchar dat)
{
LCD_RS = 1;
LCD_RW = 0;
LCD_EN = 0;
P0 = dat;
DelayNOP();
LCD_EN = 1;
DelayNOP();
LCD_EN = 0;
}
void Lcd_Init(void)
{
Lcd_PSB = 1; //并口方式
Lcd_WriteCmd(0x34); //擴充指令操作
delay(5);
Lcd_WriteCmd(0x30); //基本指令操作
delay(5);
Lcd_WriteCmd(0x0C);//顯示開，關光標
delay(5);
Lcd_WriteCmd(0x01);//清除LCD的顯示內容
delay(5);
}
void Lcd_SetPos(uchar X,uchar Y)
{
uchar pos;
if(X==0)
{X=0x80;}
else if(X==1)
{X=0x90;}
else if(X==2)
{X=0x88;}
else if (X==3)
{X=0x98;}
pos = X+Y ;
Lcd_WriteCmd(pos); //顯示地址
}
void Lcd_DispLine(uchar line, uchar pos, uchar *str)
{
int i = 0;
Lcd_SetPos(line, pos);
while (str[i] != '\0')
{
Lcd_WriteDat(str[i]);
i++;
}
}
GPS
#ifndef _GPS_H_
#define _GPS_H_
#include "GPS.h"
#include "LCD.h"
#include <string.h>
uchar code init1[] = {"GPS 顯示終端 "};
uchar code init3[] = {"GPS 初始化......"};
uchar code init4[] = {"搜索定位衛星...."};
static uchar GetComma(uchar num,char *str);
static double Get_Double_Number(char *s);
static float Get_Float_Number(char *s);
static void UTC2BTC(DATE_TIME *GPS);
void GPS_Init(void)
{
Lcd_DispLine(0,0, init1);
Lcd_DispLine(1,0, init3);
Lcd_DispLine(2,0, init4);
}
int GPS_RMC_Parse(char *line,GPS_INFO*GPS)
{
uchar ch, status, tmp;
float lati_cent_tmp, lati_second_tmp;
float long_cent_tmp, long_second_tmp;
char *buf = line;
ch = buf[5];
status = buf[GetComma(2, buf)];
if (ch == 'C') //如果第五個字符是 C , ($GPRMC)
{
if (status == 'A') //如果數據有效,則分析
{
GPS-> NS = buf[GetComma(4, buf)];
GPS_EW = buf[GetComma(6, buf)];
GPS->latitude = Get_Double_Number(&buf[GetComma(3,buf)]);
GPS->longitude = Get_Double_Number(&buf[GetComma(5,buf)]);
GPS->latitude_Degree = (int)GPS->latitude/100; //分離緯度
lati_cent_tmp = (GPS->latitude - GPS->latitude_Degree * 100);
GPS->latitude_Cent = (int)lati_cent_tmp;
lati_second_tmp = (lati_cent_tmp - GPS->latitude_Cent) * 60;
GPS->latitude_Second = (int)lati_second_tmp;
GPS->longitude_Degree = (int)GPS->longitude/100; //分離經度
long_cent_tmp = (GPS->longitude - GPS->longitude_Degree * 100);
GPS->longitude_Cent = (int)long_cent_tmp;
long_second_tmp = (long_cent_tmp - GPS->longitude_Cent) * 60;
GPS->longitude_Second = (int)long_second_tmp;
GPS->D.hour = (buf[7] - '0') * 10 + (buf[8] - '0');//時間
GPS->D.minute = (buf[9] - '0') * 10 + (buf[10] - '0');
GPS->D.second = (buf[11] - '0') * 10 + (buf[12] - '0');
tmp = GetComma(9, buf);
GPS->D.day = (buf[tmp + 0] - '0') * 10 + (buf[tmp + 1] - '0'); //日期
GPS->D.month = (buf[tmp + 2] - '0') * 10 + (buf[tmp + 3] - '0');
GPS->D.year = (buf[tmp + 4] - '0') * 10 + (buf[tmp + 5] - '0')+2000;
UTC2BTC(&GPS->D);
return 1;
}
}
return 0;
}
int GPS_GGA_Parse(char *line,GPS_INFO *GPS)
{
uchar ch, status;
char *buf = line;
ch = buf[4];
status = buf[GetComma(2, buf)];
if (ch == 'G') //$GPGGA
{
if (status != ',')
{
return 1;
}
}
return 0;
}
static float Str_To_Float(char *buf)
{
float rev = 0;
float dat;
int integer = 1;
char *str = buf;
int i;
while(*str != '\0')
{
switch(*str)
{
case '0':
dat = 0;
break;
case '1':
dat = 1;
break;
case '2':
dat = 2;
break;
case '3':
dat = 3;
break;
case '4':
dat = 4;
break;
case '5':
dat = 5;
break;
case '6':
dat = 6;
break;
case '7':
dat = 7;
break;
case '8':
dat = 8;
break;
case '9':
dat = 9;
break;
case '.':
dat = '.';
break;
}
if(dat == '.')
{
integer = 0;
i = 1;
str ++;
continue;
}
if( integer==1 )
{
rev = rev*10 + dat;
}
else
{
rev = rev + dat/(10 * i);
i = i * 10 ;
}
str ++;
}
return rev;
}
static float Get_Float_Number(char *s)
{
char buf[10];
uchar i;
float rev;
i=GetComma(1, s);
i = i-1;
strncpy(buf, s, i);
buf[i] = 0;
rev=Str_To_Float(buf);
return rev;
}
static double Str_To_Double(char *buf)
{
double rev = 0;
double dat;
int integer = 1;
char *str = buf;
int i;
while(*str != '\0')
{
switch(*str)
{
case '0':
dat = 0;
break;
case '1':
dat = 1;
break;
case '2':
dat = 2;
break;
case '3':
dat = 3;
break;
case '4':
dat = 4;
break;
case '5':
dat = 5;
break;
case '6':
dat = 6;
break;
case '7':
dat = 7;
break;
case '8':
dat = 8;
break;
case '9':
dat = 9;
break;
case '.':
dat = '.';
break;
}
if(dat == '.')
{
integer = 0;
i = 1;
str ++;
continue;
}
if( integer == 1 )
{
rev = rev * 10 + dat;
}
else
{
rev = rev + dat/(10 * i);
i = i * 10 ;
}
str ++;
}
return rev;
}
static double Get_Double_Number(char *s)
{
char buf[10];
uchar i;
double rev;
i=GetComma(1, s);
i = i - 1;
strncpy(buf, s, i);
buf[i] = 0;
rev=Str_To_Double(buf);
return rev;
}
static uchar GetComma(uchar num,char *str)
{
uchar i,j = 0;
int len=strlen(str);
for(i = 0;i < len;i ++)
{
if(str[i] == ',')
j++;
if(j==num)
return i + 1;
}
return 0;
}
static void UTC2BTC(DATE_TIME *GPS)
{
GPS->second ++;
if(GPS->second > 59)
{
GPS->second = 0;
GPS->minute ++;
if(GPS->minute > 59)
{
GPS->minute = 0;
GPS->hour ++;
}
}
GPS->hour = GPS->hour + 8;
if(GPS->hour > 23)
{
GPS->hour -= 24;
GPS->day += 1;
if(GPS->month==2||
GPS->month==4||
GPS->month==6||
GPS->month==9||
GPS->month==11)
{
if(GPS->day>30)
{
GPS->day=1;
GPS->month++;
}
}
else
{
if(GPS->day > 31)
{
GPS->day = 1;
GPS->month ++;
}
}
if(GPS->year % 4 == 0 )
{
if(GPS->day > 29 && GPS->month == 2)
{
GPS->day = 1;
GPS->month ++;
}
}
else
{
if(GPS->day > 28 &&GPS->month == 2)
{
GPS->day = 1;
GPS->month ++;
}
}
if(GPS->month > 12)
{
GPS->month -= 12;
GPS->year ++;
}
}
}
void Int_To_Str(int x,char *Str)
{
int;
char *Ptr.Buf[5];
int i = 0;
Ptr = Str;
if(x < 10) // 當整數小于 10時 , 轉化為 "0x" 的格式
{
*Ptr ++ = '0';
*Ptr ++ = x+0x30;
}
else
{
while(x > 0)
{
t = x % 10;
x = x / 10;
Buf[i++] = t+0x30; // 通過計算把數字轉化成 ASCII 碼形式
}
i -- ;
for(;i >= 0;i --) // 將得到的字符串倒序
{
*(Ptr++) = Buf[i];
}
}
*Ptr = '\0';
}
#endif
顯示模塊
#ifndef _DISPLAY_H_
#define _DISPLAY_H_
#include "DISPLAY.H"
uchar code beiwei[] = "北緯 ";
uchar code nanwei[] = "南緯 ";
uchar code dongjing[] = "東經 ";
uchar code xijing[] = "西經 ";
uchar code date[] = " 年月日 ";
void Show_Float(float fla, uchar x, uchar y);
void GPS_DispTime(void)
{
uchar i = 0;
uchar ch;
char time[5];
Lcd_DispLine(0, 0, date); //年月日；
Int_To_Str(GPS.D.year,time); //將年轉換成字符串,存在 time 中
Lcd_SetPos(0, 0); //設置顯示地址
if(strlen(time)==4) //判斷接收數據是否有效,有效則顯示
{
i = 0;
while(time[i]!= '\0')
{
ch = time[i++];
Lcd_WriteDat(ch); //顯示年
}
}
Int_To_Str(GPS.D.month,time);
Lcd_SetPos(0, 3);
if(strlen(time)==2)
{
i = 0;
while(time[i]!= '\0')
{
ch =time[i++];
Lcd_WriteDat(ch);
}
}
Int_To_Str(GPS.D.day,time);
Lcd_SetPos(0, 5);
if(strlen(time)==2)
{
i = 0;
while(time[i]!= '\0')
{
ch =time[i++];
Lcd_WriteDat(ch);
}
}
Int_To_Str(GPS.D.hour,time);
Lcd_SetPos(1, 1);
if(strlen(time)==2)
{
i = 0;
while(time[i] != '\0')
{
ch =time[i++];
Lcd_WriteDat(ch);
}
}
Lcd_WriteDat('');
Lcd_WriteDat(':');
Int_To_Str(GPS.D.minute,time);
Lcd_SetPos(1, 3);
if(strlen(time)==2)
{
i = 0;
while(time[i]!= '\0')
{
ch =time[i++];
Lcd_WriteDat(ch);
}
}
Lcd_WriteDat(' ');
Lcd_WriteDat(':');
Int_To_Str(GPS.D.second,time);
Lcd_SetPos(1, 5);
if(strlen(time)==2)
{
i = 0;
while(time[i]!= '\0')
{
ch =time[i++];
Lcd_WriteDat(ch);
}
}
}
void GPS_DisplayOne(void)
{
uchar ch, i;
char info[10];
ET0=0;
clr_screen();
Lcd_WriteCmd(0x01); //清屏
GPS_DispTime(); //顯示日期,時間
if (GPS.NS == 'N') //判斷是北緯還是南緯
Lcd_DispLine(2, 0, beiwei);
else if(GPS.NS == 'S')
Lcd_DispLine(2, 0, nanwei);
if (GPS.EW == 'E') //判斷是東經還是西經
Lcd_DispLine(3, 0, dongjing);
else if (GPS.EW == 'W')
Lcd_DispLine(3, 0, xijing);
Int_To_Str(GPS.latitude_Degree,info); //緯度
if(strlen(info)==2)
{ //只有正常顯示緯度,才顯示緯分
i = 0;
while(info[i] != '\0')
{
ch = info[i++];
Lcd_WriteDat(ch);
}
Lcd_WriteDat(' ');
Lcd_WriteDat(' ');
Lcd_WriteDat(0xA1);
Lcd_WriteDat(0xE3);
Int_To_Str(GPS.latitude_Cent,info); //緯分
if(strlen(info)==2)
{ //只有正常顯示緯分,才顯示緯秒
i = 0;
while(info[i]!= '\0')
{
ch = info[i++];
Lcd_WriteDat(ch);
}
Lcd_WriteDat(0xA1);
Lcd_WriteDat(0xE4);
Int_To_Str(GPS.latitude_Second,info); //緯秒
if(strlen(info)==2)
{
i = 0;
while(info[i]!='\0')
{
ch = info[i++];
Lcd_WriteDat(ch);
}
}
}
}
Int_To_Str(GPS.longitude_Degree,info); //經度
if(strlen(info)==3)
{ //只有正常顯示經度,才顯示經分
Lcd_DispLine(3, 2, info);
Lcd_WriteDat(' ');
Lcd_WriteDat(0xA1);
Lcd_WriteDat(0xE3);
Int_To_Str(GPS.longitude_Cent,info); //經分
if(strlen(info)==2)
{ //只有正常顯示經度,才顯示經分
Lcd_DispLine(3, 5, info);
Lcd_WriteDat(0xA1);
Lcd_WriteDat(0xE4);
Int_To_Str(GPS.longitude_Second,info); //經秒
if(strlen(info)==2)
{ //只有正常顯示經分,才顯示經秒
Lcd_DispLine(3, 7, info);
}
}
}
ET0=1;
}
void Show_Float(float fla, uchar x, uchar y)
{
int integar;
char Info[10],ch;
uchar i;
Lcd_SetPos(x, y);
integar = (int)fla;
Int_To_Str(fla,Info); //顯示整數部分
i = 0;
while(Info[i]!='\0')
{
ch=Info[i++];
Lcd_WriteDat(ch);
}
Lcd_WriteDat('.'); //顯示小數點
fla = fla-integar; //顯示小數部分
fla = fla*10; // 顯示 0.1
integar = (int)fla;
fla = fla - integar; // 改變 fla 的值 , 使 fla 總是小于 1
ch = integar + 0x30;
Lcd_WriteDat(ch);
fla = fla*10; // 顯示 0.01
integar = (int)fla;
fla = fla - integar; // 改變 fla 的值 , 使 fla 總是小于 1
ch = integar + 0x30 ;
Lcd_WriteDat(ch);
}
#endif

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ID:303383 · 發表于 2018-4-22 13:32

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我的這個程序總是出現一些看不懂的問題。怎么調啊 求幫助

我的這個程序總是出現一些看不懂的問題。怎么調啊求幫助