gprs.c

基于GPRS的远程温度采集控制系统, 嵌入式系统, C源代码, 供做嵌入式开发及远程控制的朋友参考.

#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <fcntl.h>
//#include <sys/signal.h>
#include "tty.h"
#include"gprs.h"

void gprs_init()
{ 
	int i;
   char * cmd[20]={
		"at",
		"ate0",
		"at+chfa=1", 			
		"at+clvl=100",
      "at+clip=1",
		"at+cmic=1,10",
      "at+cmgf=1"
};
   printf("gprs init start..\n");
	for(i=0; i<7; i++) {
		tty_writecmd(cmd[i], strlen(cmd[i])); 
	}
   printf("gprs init end..\n");
}

void gprs_hold()
{
	printf("\nHOLD.....\n");
	tty_writecmd("at", strlen("at"));
	tty_writecmd("ath", strlen("ath"));//·¢Ë͹һúÃüÁîATH
   printf("\nHOLD the call\n");
}

void gprs_ans()
{ 
	tty_writecmd("at", strlen("at"));
	tty_writecmd("ata", strlen("ata"));//·¢ËͽÓÌýÃüÁîATA
}

//²¦½Ð  
void gprs_call(char *number, int num)			
{ 

	tty_write("atd", strlen("atd")); //·¢ËͲ¦´òÃüÁîATD	
	tty_write(number, num);
	tty_write(";\r", strlen(";\r"));
	usleep(200000);
}

 void gprs_msg(char *number,char *text) 		
{ 
	char ctl[]={26,0};
	
	tty_writecmd("at", strlen("at"));
	tty_writecmd("at", strlen("at"));
	tty_writecmd("at+cmgf=1", strlen("at+cmgf=1"));	
	tty_write("at+cmgs=", strlen("at+cmgs="));	

    tty_write("\"", strlen("\"")); 
    tty_write(number, strlen(number));
    tty_write("\"", strlen("\""));
    tty_write(";\r", strlen(";\r"));
	tty_write(text, strlen(text));
	tty_write(ctl, 1);
	usleep(300000);
//	Uart_SendByte(1,26); //¡°CTRL+Z"µÄASCIIÂë
}
void gprs_sendmsg(char *flag ,char *number)
{
        char ctl[]={26,0};
        printf("Sending........\n");
        tty_writecmd("at", strlen("at"));
        tty_writecmd("at", strlen("at"));
        tty_writecmd("at+cmgf=1", strlen("at+cmgf=1"));         //·¢ËÍÐÞ¸Ä×Ö·û¼¯ÃüÁî^M
        tty_write("at+cmgs=", strlen("at+cmgs="));      //·¢ËÍ·¢¶ÌÐÅÃüÁ¾ßÌå¸ñʽ¼ûÊÖ²á^M
        tty_write("\"", strlen("\""));
        tty_write(number, strlen(number));
        tty_write("\"", strlen("\""));
        tty_write(";\r", strlen(";\r"));
        tty_write(flag, strlen(flag));
        tty_write(ctl, 1);
        usleep(300000);
        printf("welldone!\n");
}
void gprs_baud(char *baud,int num)
{
	tty_write("at+ipr=", strlen("at+ipr="));
	tty_writecmd(baud, strlen(baud));
	usleep(200000);
}

void gprs_readmsg()
{ 

    tty_writecmd("at+cmgf=1",strlen("at+cmgf=1"));
    tty_writecmd("at+cmgl=\"REC UNREAD\"",strlen("at+cmgl=\"REC UNREAD\""));

    usleep(200000);
}