Wiith SIM908--Please, all pro !!Help me!!Why does it run!

[KaitooKid]

Hi, guys.
I am make boar read longgitude and lattitude from SIM908 by PIC 16f887 and show on LCD.
I simulated on Protues it ran ok,
But when test on boar it didn't run.
I don't understand why does it's run
Please help
thanks a lot!!
This program on PIC:
============================================
#include<16f887.h>
#fuses nowdt,put,hs,noprotect,nolvp,nodebug,nobrownout,nocpd
#use delay(clock=20000000)
#use rs232(baud=9600,parity=N,xmit=pin_c6,rcv=pin_c7,bits=8,stop=1)

#define pwr pin_d5
#define rs pin_d6
#define e pin_d7
#define lcd output_b

void command_write(unsigned char cmd);
void data_write(unsigned char data);
void setup_lcd();
void show(unsigned char row,unsigned char colum,char s);
void system();
void gps_lcd();
char timed_getc();

char chuoi[20],kd[11],vd[11],rec[90];
unsigned int td=0;

//in terrupt UART
#INT_RDA
void receive()
{
rec[td]=getc();
td++;
}

//write command on LCD
void command_write(unsigned char cmd)
{
lcd(cmd);
output_low(rs);
output_high(e); delay_ms(5);
output_low(e); delay_ms(5);
}
//write a character on LCD
void data_write(unsigned char data)
{
lcd(data);
output_high(rs);
output_high(e); delay_ms(5);
output_low(e); delay_ms(5);
}
//initialization LCD
void setup_lcd()
{
output_low(e); output_low(rs);
command_write(0x38);
command_write(0x0c);
command_write(0x01);
command_write(0x06);
}
//show on LCD
void show(unsigned char row,unsigned char colum,char s)
{
switch(row)
{
case 1: command_write(0x80+colum);
break;
case 2: command_write(0xc0+colum);
break;
case 3: command_write(0x94+colum);
break;
case 4: command_write(0xd4+colum);
break;
}
while(*s)
{
data_write(*s); s++;
}
}
//=========================================================//
//set config of SIM
/////////////////
void system()
{
char o,k,c,a,l;
//checking activation of SIM if SIM answer "Cal" the same SIM avtived.

do
{
c=getc(); a=getc(); l=getc();
}while((c!='C')||(a!='a')||(l!='l'));

//send "at" to SIM and checking data answer the same "ok"??
do
{
strcpy(chuoi,"WELCOM TO GPS SIM908"); show(4,0,chuoi);
printf("at\r\n"); o=getc();k=getc();
strcpy(chuoi," "); show(4,0,chuoi);
}while((o!='O')||(k!='K'));

//send "at+cmgf=1" to SIM and checking data answer the same "ok"??
do
{
strcpy(chuoi,"CONFIG FORMATING..."); show(4,0,chuoi);
printf("at+cmgf=1\r\n"); o=getc(); k=getc();
strcpy(chuoi," "); show(4,0,chuoi);
}while((o!='O')||(k!='K'));
do

//send "at+cgpspwr=1" to SIM to poweron GPS and checking data answer the same "ok"??
{
strcpy(chuoi,"CONFIG FORMATING..."); show(4,0,chuoi);
printf("at+cgpspwr=1\r\n"); o=getc(); k=getc();
strcpy(chuoi," "); show(4,0,chuoi);
}while((o!='O')||(k!='K'));
do
{
strcpy(chuoi,"CONFIG FORMATING..."); show(4,0,chuoi);
printf("at+cgpsrst=0\r\n"); o=getc(); k=getc();
strcpy(chuoi," "); show(4,0,chuoi);
}while((o!='O')||(k!='K'));

//send "at+sgpsipr=9600" to SIM to initialization baud rate. and checking "ok"
do
{
strcpy(chuoi,"CONFIG FORMATING..."); show(4,0,chuoi);
printf("at+cgpsipr=9600\r\n"); o=timed_getc(); k=timed_getc();
strcpy(chuoi," "); show(4,0,chuoi);
}while((o!='O')||(k!='K'));

//send "at&w" to SIM to save config and checking data answer the same "ok"??
do
{
strcpy(chuoi,"CONFIG FORMATING..."); show(4,0,chuoi);
printf("at&w\r\n"); o=getc(); k=getc();
strcpy(chuoi," "); show(4,0,chuoi);
}while((o!='O')||(k!='K'));
strcpy(chuoi,"LOADING..."); show(4,0,chuoi);
delay_ms(5000);
strcpy(chuoi," "); show(3,0,chuoi);
strcpy(chuoi," "); show(4,0,chuoi);
strcpy(chuoi,"W:");
show(3,0,chuoi);
strcpy(chuoi,"N:");
show(4,0,chuoi);
}

//get longgitude and lattitude
void gps_lcd()
{
unsigned int vt=0,i=0;

while(rec[vt]!=',') {vt++;} //checking "," and deny the frist ","
vt++;
command_write(0x99);
while(rec[vt]!=',') {kd=rec[vt++]; data_write(kd); i++;}//get loggitude and show on LCD
vt++; i=0;
command_write(0xd9);
while(rec[vt]!=',') {vd=rec[vt++]; data_write(vd); i++;}//get lattitude and show on LCD
}

//MAIN
void main()
{
set_tris_b(0x00); set_tris_c(0x80); set_tris_d(0x00);
port_b_pullups(0xff);
setup_lcd();
strcpy(chuoi,"GPS_SIM908");
show(1,0,chuoi);
strcpy(chuoi,"KAITOO KID 908");
show(2,0,chuoi);
output_high(pwr); delay_ms(1000); output_low(pwr);
system();
enable_interrupts(GLOBAL);
enable_interrupts(INT_RDA);
while(true)
{
printf("at+cpgsinf=0\r\n");//read longgitude and lattitude mode 0
gps_lcd(); td=0;
delay_ms(5000);
}
}

Sorry because my bad English.
:sad:

 

[KaitooKid]

Data from SIM send to Microcontroller is ASCII, isn't you??