help required .... (C function does not return)

[hssn601]

@AtomSoft
i have cheacked your code but same problem it only gets 1st time latt/long
here is code of uc2 which contineously sends these sentences.

 

[AtomSoft]

Ok that helps somewhat...

Are you trying to print each one on the LCD or just the $GPGLL line ?

Look at the 3rd line of printf

printf("GPAPB,A,A,0.0,L,N,,,358.1,M,SIM002,358.0,M,,,*20 ");

are you missing a $ ?

 

[Ian Rogers]

Atom!! do you use CCs compiler... If you do, can you check his original code to see if the serial port is overrunning? I suspect this is whats happening.

 

[hssn601]

no i am trying to print only latt/long and is sucessful but only 1st time

 

[AtomSoft]

Which printf contains LATT and LONG ? only the $GPGLL ?

 

[hssn601]

while(1)
{

serial();
set_tris_c(0b10000000);
set_tris_D(0x00);
set_tris_b(0x00);
lcd_init();
delay_ms(20);
led=1;///-----------------------------------------------------to cheack weather main program is executing
delay_ms(50);
led=0;
delay_ms(50);

lcd_gotoxy(1,1);
printf(lcd_putc,"LAT=%c%c%c%c%c%c%c%c%c%c%c \n",cmd[1],cmd[2],cmd[3],cmd[4],cmd[5],cmd[6],cmd[7],cmd[8],cmd[9],cmd[10],cmd[11]);
lcd_gotoxy(1,2);
printf(lcd_putc,"LON=%d%c%c%c%c%c%c%c%c%c%c%c%c",loop,cmd[13],cmd[14],cmd[15],cmd[16],cmd[17],cmd[18],cmd[19],cmd[20],cmd[21],cmd[22],cmd[23],cmd[24]);
delay_ms(100);
loop++;


}
the led only turn on and off once so when second time main calls serial() it does not return to main()

 

[hssn601]

1st printf for latt and second for long

 

[AtomSoft]

If you are using old loop like first post it will not return to main

Ah ok ill get back to you in a minute with thoughts

 

[AtomSoft]

Still unclear, sorry im no GPS expert...

from this latt line what is the actual data you want to get?

"$GPGLL,%ld.%ld,N,01959.8130,E,135944.703,A*30"

Is the actual data just the %ld/%ld or do you need the entire thing ?

 

[hssn601]

%ld.%ld,N,01959.8130,E


i want to extract that in array and the array again and again takes this and print on lcd

 

[AtomSoft]

ok now we are talking... i think i can help you out with this... give me 5 minutes

 

[hssn601]

@atom
you can see the required files here
https://www.electro-tech-online.com/threads/help-needed-how-to-simulate-2-microcontrollers.119370/

 

[AtomSoft]

Thanks ill check it out now... for now check and see if this is understandable ?

char commaCount = 0;
char data[20] ;
char done = 0;
char count=0;
char LL;

for(LL=0;LL<2;LL++)     //Loop 2 times for Longitude and Latitude strings
{
  while( != '$');       //Wait until beginning of new printf
  while(getch() != ',');//wait until we get out first comma

  while(commaCount < 4) // This is the amount of data we need... 4 commas worth
  {
    count=0;            //count variable for placing data in loop
    while(1)            //loop getting all data possible
    {
      data[count] = getch(); //place data into variable
      count++;               //Increase count

      if(data = ',')         //if data is a command break the loop
        break;
    }
    commaCount++;            //Loop is broken so increase the comma count
  }
}

 

[hssn601]

atom i have cheaked your code data[] doesnot have anything

 

[AtomSoft]

Hey was eating lunch i just installed ccs compiler and mplab plugin. Will test everything in a couple minutes

 

[AtomSoft]

Hey i need: flexlcd.c

 

[hssn601]

flexlcd.c....................

 

[AtomSoft]

dude this is crazy! it wont even breakpoint repeatedly. Im sure its a simulation issue... do you have the MCUs to test this on?

Im sure i can code it in C18 and not have this issue

 

[Ian Rogers]

Hey Jason... Are you trying to debug in ISIS... I think only microchips C18 has got it right... Even Hitech doesn't debug correctly.

 

[AtomSoft]

ah ok.. heh i was wondering why it was acting crazy.