Serial port problem

[vorange]

I can successfully send a character from my C# program to the serial
port to a device. But when I have that device send me back a character
and I read it in, I get the same character that I sent out!

What is going on here. I have verified that the device is indeed
sending back the proper character that I want.

But for some reason, my C# program only shows the char I sent out. Its
like its being echoed back. Why ?

I'm using a DataReceived event to handle the incoming byte and this
code to read the byte :

int i = 0;
i = port.ReadByte();
str2 = i.ToString();
MessageBox.Show (str2);

 

[vorange]

Anyone.. please.

 

[Michael A. Covington]

One possibility, of course, is that your sent character *is* being echoed
back by the external device. If you have not already done so, you might try
a terminal program (Hyperterm or something) to communicate with the same
device, to see how it's behaving.