bool get_apn_by_imsi( )
{
u8 retry;
u8 respond_str[AT_CMD_LENGTH];
unsigned int i, apn_count ;
apn_count = sizeof(apn_list)/sizeof(apn_list[0]);
for ( retry = 0 ;retry < 3 ; retry++) {
putstring(COM2, "AT+CIMI\r\n");//get imsi
memset(respond_str, 0x0, AT_CMD_LENGTH);
if ( my_icar.stm32_u2_rx.empty ) {//no data...
OSTimeDlyHMSM(0, 0, 0, 100);
}
while ( !my_icar.stm32_u2_rx.empty ) {//have data ...
if ( get_respond(respond_str) ) {
if ( (respond_str[0] >= 0x30) && (respond_str[0] <= 0x39) ){
debug_gsm("IMSI: %s\r\n",respond_str);
strncpy((char *)my_icar.mg323.imsi, (char *)respond_str, 15);
for ( i = 0 ; i < apn_count ; i++ ) {
if ( cmpmem(respond_str,(unsigned char *)apn_list[i][0],5 )) {
my_icar.mg323.apn_index = i ;
return true;
}
}
}
}
else {
debug_gsm("CMD:AT+CIMI no respond, timeout\r\n");
}
}
OSTimeDlyHMSM(0, 0, 0, 500);
}
return false ;
}
main()
{
static char b1[] = { "abcda" };
static char b2[] = { "abcda" };
static char b3[] = { "xbada" };
static char b4[] = { "xbadb" };
if (cmpmem(b1, b2, 4))
puts("cmpmem failed 1");
if (cmpmem(b2, b3, 4) >= 0)
puts("cmpmem failed 2");
if (cmpmem(b3, b2, 4) <= 0)
puts("cmpmem failed 3");
if (cmpmem(b3, b4, 5) >= 0)
puts("cmpmem failed 4");
if (cmpmem(b4, b3, 5) <= 0)
puts("cmpmem failed 5");
if (cmpmem(b1, b2, 5))
puts("cmpmem failed 6");
}
