How to program a ATmega16 with GPS (basic)?

[Claes]

Hi guys

 

Im sitting here with a school project, where  I need to program a ATMEGA16 with gps. i need my gps singal to show me latitudes and longitudes any one know how i do that?

[AJISH ALFRED]

Hi,

Tell you the first step. Connect the GPS module to the serial port of your PC, and use any application like hyperterminal to view what all data comes.

Next connect the GPS module to the serial port of the microcontroller, write a program to read the data, collect only the data you require.

[Claes]

yearh i know that, my problem is the code? i dont understand how to code the program i need

[sushant]

 

CODE VIII:

#include <avr/io.h>

BRiCS

Page

7

#include <avr/interrupt.h>

#include <util/delay.h>

char status = 0,index = 0,lat[10] = ” “,lon[10] = ” “;

char sat[2] = “**”,dop[4] = “****”,tim[6] = “******”;

ISR(USART_RXC_vect){

unsigned char c;

c = UDR;

if (c==’$’){status = 1;index = 0;}

else if((index == 3)&(c != ‘G’)) status=0;

else if((index == 4)&(c != ‘G’)) status=0;

else if(index> 6 & index< 13)tim[(index- 7)]=c;

else if(index>17 & index< 27)lat[(index-18)]=c;

else if(index>30 & index< 40)lon[(index-31)]=c;

else if(index>44 & index< 47)sat[(index-45)]=c;

else if(index>46 & index< 51)dop[(index-47)]=c;

if(status==1)

index++;

}

int main(void) {

set_uartbaud(9600);

enable_uart_rxcint();

LCDinit();

LCDclr();

sei();

while (1) {

_delay_ms(200);

LCDGotoXY(0,0);

LCDstring(lat,10);

LCDstring(sat,2);

LCDstring(dop,4);

LCDGotoXY(0,1);

LCDstring(lon,10);

LCDstring(tim,6);

}

}

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