Silicon Laboratories SI2493/57/34/15/04, SI2494/39 manual 264

AN93

//,,8 enables synch access on answering a connect

cpInputRd = SendAndWaitFor("AT+ES=6,,8\r", cpInputRd, "OK\r\n", 300);

//AT+ESA=0,0,0,,1 synch access mode control

//0,,,, modem transmits SYN if underrun during transparent mode

//,0... modem tx's flags after underrun after flag happens in framed sub mode

//,,0,, modem tx's abort on underrun in frame middle during framed sub mode

//,,,,1 enables CRC generation and checking

cpInputRd = SendAndWaitFor("AT+ESA=0,0,0,,1\r", cpInputRd, "OK\r\n", 300);

//"AT:U87,010A Synch access mode config

//0x0400 bit 10 Minimal transparency <EM><T1 thru T4> during Rx

//0x0100 bit 8 Upon connection immediately enter framed sub mode

//0x000A bits 3:0 Wait for 10 bytes before starting xmission. cpInputRd = SendAndWaitFor("AT:U87,050A\r", cpInputRd, "OK\r\n", 300);

//:U7A,1 Fast connect

cpInputRd = SendAndWaitFor("AT:U7A,1\r", cpInputRd, "OK\r\n", 300);

AssertRTS(false);

if ((hpTelNoFile = fopen(fnameTelno, "rb")) == NULL)

{

fprintf(stderr, "The Tel. Number File is missing.\n"); exit(1);

}

char caOutGoing[256];

bool bValidLine = GetFileTextLine(caOutGoing);

printf("Phone Number: %s\n",caOutGoing);

if(bValidLine)

cpInputRd = SendAndWaitFor(caOutGoing, cpInputRd, "CONNECT\r\n", 120000);

else

{

fprintf(stderr, "The Tel. Number File is incorrect.\n"); exit(1);

}

int iLength;

iCharCount = 0; //reset the total chars to 0 for data mode.

//Skip waiting for the speed packet.

//cpInputRd = WaitForResponse("\0x19\0xbe\0x24\0x24\0x19\0xb1", cpInputRd, 6000); // ???

// Long training happens now!
cpInputRd = WaitForResponse(caSNRM_PKT_STR,		cpInputRd, 6000);
Delay(50);	//Delay	to allow the line	to turn around

264 Rev. 1.3