No subject

/*******************/

#include<regx52.h>
#include<lcddisplay.h>
#include<UART_gsm.h>
#include<string.h>
#include<intrins.h>
#include<stdlib.h>

sbit buz = P2^7;

sbit gsm = P3^2;
sbit board = P3^3;

data unsigned char mobilenum[10];
data unsigned char msg[80];
unsigned char XX,newmsg=0,j=0;

void readmsg(void);

void serintr(void) interrupt 4
{ if(RI==1) { XX=SBUF;

if(XX=='+') newmsg=1; j=j+1;

if(j>100) j=0;

RI=0; }
}

void delay(unsigned int);
void main()
{

lcd_init(); UART_init(); lcdcmd(0x85);

board=1; gsm=0; RI=0;

lcdcmd(0x01); msgdisplay("searching for"); lcdcmd(0xc0); msgdisplay("GSM modem"); delay(300); send_to_modem("ate0"); //to avoid echo signals, enter();
again: send_to_modem("at"); // TO CHECKING GSM MODEM... enter(); delay(50); if(!RI) // Here we are waiting for data whitch is sending by GSM modem goto again;

RI=0; EA=1; ES=1; lcdcmd(0x01); msgdisplay("SYSTEM"); lcdcmd(0xc3); msgdisplay("CONNECTED"); delay(100); send_to_modem("at+creg=0"); // enter(); delay(300); newmsg=0;

xxx: lcdcmd(0x01); msgdisplay("CHEKING SIM"); send_to_modem("AT+CPIN?"); // enter(); delay(500); if(newmsg==0) goto xxx; buz=0; lcdcmd(0xC0); msgdisplay("SIM CONNECTED"); delay(500);

send_to_modem("at+cmgf=1"); // tr set message format astext mode enter();

send_to_modem("at+cmgd=1"); //delete the message1 enter(); delay(500); send_to_modem("at+cmgd=2"); //delete the message1 enter(); ES=1;

st: delay(1000); buz=1;

while(RI==1) { RI=0; delay(100); }

RI=0; lcdcmd(0x01); msgdisplay("GSM NOTICE BOARD"); lcdcmd(0xc0); msgdisplay("SYSTEM"); ES=1; delay(500); newmsg=0; while(newmsg==0); ES=0; //delay(500); readmsg();

ES=1; delay(500); ES=0; TR1=0; board=0; gsm=1; TR1=1; buz=0; msgdisplay(msg); delay(500);

ES=1; delay(500); enter(); delay(50); j=0;
resend:

ch_send_to_modem(35); j=0; delay(500); if(j==0) { enter(); delay(50); goto resend; } while(j<50); lcdcmd(0x01); msgdisplay("Updating Message"); lcdcmd(0xc0); msgdisplay("1 "); delay(1000); ch_send_to_modem('3'); j=0; while(j<25); msgdisplay("2 "); delay(750); ch_send_to_modem('5'); delay(750); ch_send_to_modem(42); j=0; while(j<10); msgdisplay("3 "); delay(2000); ES=0; send_to_modem("<M "); send_to_modem(msg);

send_to_modem("><S 1><D L1><T 1>"); enter(); j=0; delay(1000); lcdcmd(1); buz=1; TR1=0; board=1; gsm=0; TR1=1; delay(500); send_to_modem("at+cmgs="); ch_send_to_modem('"'); send_to_modem(mobilenum); ch_send_to_modem('"'); enter(); delay(50); send_to_modem("MESSAGE UPDATED SUCCESSFULLY"); ch_send_to_modem(0x1a); ES=1; delay(500); lcdcmd(0x01); msgdisplay("MESSAGE SENT");

delay(3000); goto st; }

void readmsg(void)
{ unsigned char a,b,i,count,numcnt;

delay(100); ES=1; delay(300); ES=0;

while(RI==1) { RI=0; delay(100); }

lcdcmd(0x01); send_to_modem("at+cmgr=1"); enter();

count=0; i=0; a=0; numcnt=0;

while(count!=3) { while(RI==0); b=SBUF; if((b==',')||(a==1)) { if(numcnt<15) { if(numcnt>4) { mobilenum[numcnt-5]=b;

} a=1; numcnt++; } else a=0; } if(count==2) { msg[i++]=SBUF; }

RI=0; if(b==10) count+=1; }

msg[--i]='\0'; msg[--i]='\0'; mobilenum[10]='\0'; send_to_modem("at+cmgd=1"); enter();

}