MSComm testing

[anant anavkar]

Hi,
I have a program that uses MSComm control to communicate over a RS232 line.
The protocol is as follows:

// rcv transaction
// ENQ ->
// <- EOT
// data ->
// <- ACK/NAK

// send transaction
// <- ENQ
// EOT ->
// <- data
// ACK/NAK ->

I need a utility to test this program. In Win 3.1, the program TERMINAL.EXE
did the trick. In Win9x/NT, I cannot send text (and control characters),
thru the edit window of HyperTerminal program. Any suggestions?
Thanks in advance.

[Emanuil Achim]

Hi Anant !

I'm sorry to say that I have no suggestions for your post on codeguru from
4/17/99 but maybe you have some stuff for me.

I never developed communications with ports, but now I must do it. Words
like ENQ, ACK, RS232 and many others make my life very hard. And I
have the same situation like you: a program that uses MSComm ActiveX
to communicate over a RS232 line, with protocols.

Now, if you have some examples or if you know some sources about it,
I will be very thankfully for it.


Thank you in advance.



Emanuil ACHIM
MAN Roland Druckmaschinen AG

Tel.: ( 0 69 ) 83 05 - 37 36
Email: [email protected]