Serial Port Reading and Writing 1

[Robertus]

Is there any one who could tell me wich function(s) to use in order to read from serial port com2???

 

[Dragoon]

Hi Robertus,

This is what I use

// Used in all calls to reference the channel after it is created
HANDLE hConnection;

// Open the port
hConnection = CreateFile("COM2",
GENERIC_READ|GENERIC_WRITE,
0,
NULL,
OPEN_EXISTING,
FILE_ATTRIBUTE_NORMAL,
NULL);


// Close the port
CloseHandle(hConnection);


// Read
ReadFile(hConnection,
cBuffer, // Character array to receive data
nNumberChar, // number of characters to receive
&dwCommCounter, // number actually received
NULL)

// Write
WriteFile(hConnection,
cBuffer, // Character array to send
nNumberChar, // number of characters to send
&dwCommCounter, // number successfully sent
NULL)

Hope this helps.

Dragoon

 

[Guest_imported]

I found this Microsoft example very helpful, hopefully it might help you...

http://msdn.microsoft.com/library/devprods/vs6/visualc/vcsample/_sample_mfc_vcterm.htm