Re: [Dev-C++] Modem Configuration

[Evandro H. R. <ero...@ro...>]

I found the problem...

In the line where is write: string codigo =3D "ATDT 9092\n";
Needs to be: char[] =3D "ATDT 9092\r\f";

The problem was the "\n" in the end of string, it is need to be "\r\f" th=
en
the modem knows that needs to execute the string.


Thanks


Evandro


----- Original Message -----
From: "Evandro Humberto Rodrigues" <ero...@ro...>
To: <Dev...@li...>
Sent: Wednesday, September 11, 2002 1:13 PM
Subject: [Dev-C++] Modem Configuration


> Hi people,
>
>     I trying to produce a little program to configurate my external mod=
em
> (USR 56K).
>     First I create a file with CreateFile() function, then I used
> WriteFile() function to send the configuration strings to modem.
>     For test I sent a string like "ATDT 9092" to put the modem to dial =
to
> the number 9092, but the ligths on the modem blink but modem does not m=
ake
> the call...
>     Using HYPERTERMINAL, this work fine.
>     What is wrong?
>     I put the program below if someone can help me I will be grateful.
>
>     Thanks in advance
>
> --------------------------------------
> Evandro H. Rodrigues
> Ind=FAstrias ROMI S/A - Brazil
> Quality Assurance Dep F14-07
> Phone: 55-19-455-9529
> Fax: 55-19-455-9084
> email: ero...@ro...
>
> ---------- program -------------------------
>
> #include <iostream>
> #include <stdlib.h>
> #include <stdio.h>
> #include <windows.h>
> #include <string>
>
> int main(int argc, char *argv[])
> {
>   DCB dcb;
>   HANDLE hCom;
>   BOOL fSuccess;
>   LPCVOID buffer;
>   char *pcCommPort =3D "COM2";
>
>   using namespace std;
>
>   hCom =3D CreateFile( pcCommPort,
>                      GENERIC_READ | GENERIC_WRITE,
>                      0,    // comm devices must be opened
w/exclusive-access
>                      NULL, // no security attributes
>                      OPEN_EXISTING, // comm devices must use OPEN_EXIST=
ING
>                      0,    // not overlapped I/O
>                      NULL  // hTemplate must be NULL for comm devices
>                      );
>
>   if (hCom =3D=3D INVALID_HANDLE_VALUE) {
>       // Handle the error.
>       printf ("CreateFile failed with error %d.\n", GetLastError());
>       return (1);
>     }
>
>   // We will build on the current configuration, and skip setting the s=
ize
>   // of the input and output buffers with SetupComm.
>
>   fSuccess =3D GetCommState(hCom, &dcb);
>
>   if (!fSuccess) {
>       // Handle the error.
>       printf ("GetCommState failed with error %d.\n", GetLastError());
>       return (2);
>     }
>
>   // Fill in the DCB: baud=3D57,600 bps, 8 data bits, no parity, and 1 =
stop
> bit.
>
>   dcb.BaudRate =3D CBR_57600;     // set the baud rate
>   dcb.ByteSize =3D 8;             // data size, xmit, and rcv
>   dcb.Parity =3D NOPARITY;        // no parity bit
>   dcb.StopBits =3D ONESTOPBIT;    // one stop bit
>
>   fSuccess =3D SetCommState(hCom, &dcb);
>
>   if (!fSuccess) {
>       // Handle the error.
>       printf ("SetCommState failed with error %d.\n", GetLastError());
>       return (3);
>     }
>
>   string codigo =3D "ATDT 9092\n";
>   DWORD nBytes;
>   string lida =3D "1234567890123456789012345678901";
>
>   if (WriteFile(hCom, &codigo, 10, &nBytes, NULL))
>     cout << "Foram escritos " << nBytes << " Bytes" << endl;
>
>   if (ReadFile(hCom, &lida, 10, &nBytes, NULL))
>     cout << "String lida -> " << lida << " Bytes lidos " << nBytes <<
endl;
>
>   system("PAUSE");
>   return (0);
> }
>
>
>
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