Zvasas
Guest
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| Problem with GSM and UART |
 Posted: Tue Apr 04, 2006 3:13 pm |
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Hi all i have problem with connecting GSM to PIC.
I send data from PIC to GSM it'sall OK, but then i receiving data from GSM to PIC having problems, it's not corect data.
GSM sending
AT
OK
but i geting "PUH�" that is wrong ?
This is my code:
| Code: |
#include <16F628.h>
#include <string.h>
#use delay(clock=8000000)
#fuses hs, noprotect, nowdt, nolvp
#use rs232(baud=19200,parity=N,xmit=PIN_B2,rcv=PIN_B1,bits=8,stream=GSM)//Mobiliakoportas
#use rs232(baud=19200,parity=N,xmit=PIN_A3,rcv=PIN_A2,bits=8,stream=PC)//kompo portas
#define LED1 PIN_B4
#define LED2 PIN_B5
#define LED3 PIN_B6
#define BUT1 PIN_A0
#define BUT2 PIN_A1
const char SMSinit[] = "AT+CMGS="; //duodama komanda kad bus pradeta siusti SMS
const char SMSinitEND[] = "\x0d"; //siunciama komanda AT+CMGS=XX kur XX yra bitu skaicius sekancio siuntimo
const char SMSStart[] = "0011000B91"; //pirmieji zinutes simboliai kurie nurodo zinutes tipa, numerio ilgi ir tt.
const char SMSbit[] = "0000AA"; //simboliai nurodantys zinute galiojimo laika ir tt.
const char SMSend[] = "\x1a\x0d"; //siunciame zinute <CRRL><Z>
const char ATDstart[] = "ATD+";
const char ATDEND[] = ";\x0d";
const char SMS[20] = "C526949AF5"; //zinutes tekstas (koduotas) siuo atveju "EMPTY"
const char SMSlenght[] = "05"; //zinutes teksto ilgis "05" bus 5 simboliai ("0A" bus 10; 13 bus 19) simboliu
const char SMSnumber[] = "7360812481F7"; //telefono numeris y kuri bus siunciama zinute "37062546960" 'F'
const char SMSinitLNG[] = "18"; //zinute sudaro 13 + kiek sudaro zinutes tekstas
const char ATDnumber[] ="37061842187"; //telefono numeris
int a,dial,smsas;
char simbolis;
char buferis[80] = "";
char atsakymas[] = "Kiaule";
int kintamasis = 0;
void init() { set_tris_a(0X0F);} //nustatome RA_0,RA_1,RA_2,RA_3 kaip INPUT(iejimo)
void init_mobile() //Patikriname rysy su mobiliuojiu telefonu
{
char a,b;
loop: //pradedame operacija "Loop"
fprintf(PC,"AT\r\n"); //siunciame komanda "AT"
if(kbhit(PC)){a=fgetc(PC);}
if(kbhit(PC)){b=fgetc(PC);}
if(a=='O' && b=='K') //jeigu kintamasia a1=A o a2=T
{
output_high(LED2);
delay_ms(200);
}
else
{
output_low(LED2); //kitu atveju sviesos dioda isjungeme
delay_ms(200);
goto loop; //kartojame nuo operacijos "Loop"
}
}
void gaudom()
{
simbolis=fgetc(PC);
if(simbolis==0x0A ||simbolis==0x0D){kintamasis=0; fprintf(PC,"\r\nAtsakymas yra - "); goto galas;}
buferis[kintamasis]=simbolis;
kintamasis++;
fputc(simbolis,PC);
galas:
if(kintamasis==0)
{
if (strncmp(buferis,atsakymas,6)==0){fprintf(PC,"Teisingas\r\n");} else {fprintf(PC,"Neteisingas\r\n");}
strcpy(buferis,"");
}
}
void gaudom_gsm()
{
simbolis=fgetc(GSM);
if(simbolis==0x0A ||simbolis==0x0D){} else fputc(simbolis,PC);
}
void Call() //Skambinimas
{
fprintf(GSM,ATDstart);
fprintf(GSM,ATDnumber);
fprintf(GSM,ATDEND);
delay_ms(500);
}
Void main()
{
int a=0;
init();
output_high(LED1);
output_high(LED2);
output_high(LED3);
delay_ms(1000);
output_low(LED1);
output_low(LED2);
output_low(LED3);
delay_ms(1000);
pradzia:
//if(kbhit(PC)){output_high(LED3);gaudom(); goto pradzia;} else {output_low(LED3);}
if(kbhit(GSM)){gaudom_gsm(); goto pradzia;}
if(!input(BUT1)){ fprintf(PC,"Patikrinimas\r\n");}
if(!input(BUT2) && a==0){fprintf(PC,"Paspaustas AT\r\n"); fprintf(GSM,"AT\r\n");a=1;} else if(input(BUT2)) {a=0;}
goto pradzia;
}
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GSM phone connected directly. |
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