/*
(1)This is a demo program which demonstrates how you can use the GPS/GSM function and for 7188XA.
(2)It also demonstrates how to use 7-segments LED as a simple HMI tool.
(3)Connect the DB-9 connector of GPS receiver to COM1 of 7188XA.
   Connect the DB-9 connector of GSM module to COM3 of 7188XA.

Compiler file: demo.c
			   7188XA.lib
			   GPS.lib
			   GSM.lib

2002/02/06 written by Tony
*/


#include<stdio.h>
#include<stdlib.h>
#include<string.h>
#include"..\lib\7188xa.h"
#include"..\lib\GPS.h"
#include"..\lib\GSM.h"

/***********The following are Functions for HMI****************/
void Shownull(void)
{
	LedOff();
	Disable5DigitLed();	
}

void ShowUTC_h(int hour)
{
	LedOn();      
	Show5DigitLedWithDot(1,1);
	Show5DigitLed(2,16);
	Show5DigitLed(3,16);
	Show5DigitLed(4,hour/10);
	Show5DigitLedWithDot(5,hour%10);
	Enable5DigitLed();
}

void ShowUTC_ms(int min,int sec)
{
	LedOn();
	Show5DigitLed(1,16);
	Show5DigitLed(2,min/10);
	Show5DigitLedWithDot(3,min%10);
	Show5DigitLed(4,sec/10);
	Show5DigitLed(5,sec%10);
	Enable5DigitLed();
	
}

void ShowNS(int NS)
{
	LedOn();
	Show5DigitLedWithDot(1,2);
	Show5DigitLed(2,16);
	Show5DigitLed(3,16);
	Show5DigitLed(4,NS/10);
	Show5DigitLed(5,NS%10);
	Enable5DigitLed();

}

void ShowLat(int degree, int minute)
{
	LedOn();
	Show5DigitLed(1,16);	
	Show5DigitLed(2,degree/10);
	Show5DigitLedWithDot(3,degree%10);
	Show5DigitLed(4,minute/10);
	Show5DigitLed(5,minute%10);
	Enable5DigitLed();
}

void ShowEW(int EW)
{
	LedOn();
	Show5DigitLedWithDot(1,3);
	Show5DigitLed(2,16);
	Show5DigitLed(3,16);	
	Show5DigitLed(4,EW/10);
	Show5DigitLed(5,EW%10);
	Enable5DigitLed();

}

void ShowLon(int degree, int minute)
{
	LedOn();
	Show5DigitLed(1,degree/100);	
	Show5DigitLed(2,(degree%100)/10);
	Show5DigitLedWithDot(3,degree%10);
	Show5DigitLed(4,minute/10);
	Show5DigitLed(5,minute%10);
	Enable5DigitLed();
}

void ShowQua(int Quality)
{
	LedOn();
	Show5DigitLedWithDot(1,4);
	Show5DigitLed(2,16);
	Show5DigitLed(3,16);
	Show5DigitLed(4,16);
	Show5DigitLed(5,Quality);
	Enable5DigitLed();
}

void ShowNOS(int NOS)
{
	LedOn();
	Show5DigitLedWithDot(1,5);
	Show5DigitLed(2,16);
	Show5DigitLed(3,16);	
	Show5DigitLed(4,16);
	Show5DigitLed(5,NOS);
	Enable5DigitLed();
}
/*********************the above are Functions for HMI*****************/

void main(void)
{
	char gpgga[512];
	char UTC[12],Lat[15],NS[2],Lon[15],EW[2],GPSqua[2],NOS[3];
	char ha[3],ma[3],sa[3],drgee1[3],min1[3],drgee2[4],min2[3];
	int h,m,s,d1,m1,ns,d2,m2,ew,qua,nos;
	int i,j,decflag=0,q;
	STOPWATCH cdt1,cdt2,cdt3;
	int type;
  	int ver;
  	
  	type=Is7188xa();		/*detect the current operation system*/
   	if(type){
    	ver=GetLibVersion();
    	Print("Hello 7188XA! (Flash memory is %d K)\n\r",type);
    	Print("Library version is %d.%02d",ver>>8,ver&0xff);
    }
   	else{
    	Print("Hello PC!, this program is not run under 7188XA.");
    	return;
    }
	InstallCom1(4800,8,0,1);
	InstallCom3(9600,8,0);	
	h=m=s=d1=m1=ns=d2=m2=ew=qua=nos=0;
	T_StopWatchStart(&cdt1);
	T_StopWatchStart(&cdt2);
	T_StopWatchStart(&cdt3);	
	
	for(;;)
	{
		if(Kbhit()){	/*Press 'q' or 'Q' to end program*/
			q=Getch();
			if(q=='q' || q=='Q'){
				Enable5DigitLed();
				DelayMs(500);
				RestoreCom1();
				RestoreCom3();
				return;
			}
		}
		
		if(T_StopWatchGetTime(&cdt1)>=1000){	/*Get the NMEA message and handle these string pre second.*/
			Get_NMEA(1,"$GPGGA",gpgga);
			Get_Field(1,gpgga,UTC);  
			Get_Field(2,gpgga,Lat);
			Get_Field(3,gpgga,NS);
			Get_Field(4,gpgga,Lon);
			Get_Field(5,gpgga,EW);
			Get_Field(6,gpgga,GPSqua);
			Get_Field(7,gpgga,NOS);
			for(j=0;j<2;j++){
				ha[j]=UTC[j];
				ma[j]=UTC[j+2];
				sa[j]=UTC[j+4];			
			}	
			ha[2]=ma[2]=sa[2]=0;
			h=(atoi(ha))+8;m=atoi(ma);s=atoi(sa);
			if(h>=24)
				h=h-24;
			SetTime(h,m,s); 
			for(j=0;j<2;j++){
				drgee1[j]=Lat[j];
				min1[j]=Lat[j+2];
			}
			drgee1[3]=min1[3]=0;
			d1=atoi(drgee1);m1=atoi(min1);
			if(NS[0]=='N') ns=30;
			else ns=31;
			for(j=0;j<5;j++){
				if(j<3)
					drgee2[j]=Lon[j];
				else
					min2[j-3]=Lon[j];
			}
			drgee2[4]=min2[2]=0;
			d2=atoi(drgee2);m2=atoi(min2);
			if(EW[0]=='E') ew=50;
			else ew=51;
			qua=atoi(GPSqua);
			nos=atoi(NOS);		
			T_StopWatchStart(&cdt1);
		}
		
		if(T_StopWatchGetTime(&cdt2)>=800){		/*Show the whole NMEA message via HMI display per 0.8 second(if the number of satellite in use are more than 3)*/
			if(nos>=3){
				if(decflag>15)
					decflag=0;
				switch (decflag){
					case 0:
						ShowUTC_h(h);
						break;
					case 2:
						ShowUTC_ms(m,s);
						break;
					case 4:
						ShowNS(ns);
						break;
					case 6:
						ShowLat(d1,m1);
						break;
					case 8:
						ShowEW(ew);
						break;
					case 10:
						ShowLon(d2,m2);
						break;
					case 12:
						ShowQua(qua);
						break;
					case 14:
						ShowNOS(nos);
						break;
					default:
						Shownull();
						break;
				}
				decflag++;
				T_StopWatchStart(&cdt2);
			}		
			else{		/*Only show the UTC via HMI display per 0.8 second(if the number of satellite in use are less than 3)*/
				if(decflag>3)
						decflag=0;
					switch (decflag){
						case 0:
							ShowUTC_h(h);
							break;
						case 2:
							ShowUTC_ms(m,s);
							break;
						default:
							Shownull();
							break;
					}
					decflag++;
					T_StopWatchStart(&cdt2);
			}
		}
		if(T_StopWatchGetTime(&cdt3)>=3600000L){	/*Transmit the NMEA message to remote host via GSM module. per an hour.*/
			SMS(3,"0939220164",gpgga);
			T_StopWatchStart(&cdt3);
		}
	}
}