T290i controlling with pic

Hi.I am getting operator name and displaying on LCD.
My code:

#include <16F628.h>

#use delay(clock=4000000)
#define use_portb_lcd TRUE
#include <LCD.C>

#use rs232(baud=9600,parity=N,xmit=PIN_A2,rcv=PIN_A1,bits=8)
char s[30];
int i=0;
char *substring(int start, int stop,  char *text)
{
   return ("%.*s\n", stop - start, &text[start]);
}


void main()
{
lcd_init();

printf("AT\r\n");
delay_ms(100);
output_high(PIN_A0);
printf("ATE0\r\n");
delay_ms(100);
printf("AT+COPS?\r\n");
getc();
getc();
gets(s);
printf(lcd_putc,substring(11,25,s));
lcd_putc('e');
}

It works. But it is not stable.Sometimes dont work.LCD displays "e" only.
Why? What is problem?

you forgot to add while(1) loop at end..
if it does not work then try with sending normal string..

I tried. But same problem again. This text is true. ', "TR TURKCELL"e'
Look video:
[yt]a4Re5v2N5SU[/yt]

try this way..

char str[20];
sprintf(str,substring(11,25,s));
while(*str){
     lcd_putc(*str++);
}

code gives error at '++'

make a lcd_puts function and use str as..
lcd_puts(str);

try again..

if you can make lcd_puts function then you can do this way too..

lcd_puts(substring(11,25,s));

do you think problem is sending string to LCD?

seems like you need to review the substring function. i dont think its working.. make simple for loop logic?