.NET SerialPort DataReceived event not firing

Question

I have a WPF test app for evaluating event-based serial port communication (vs. polling the serial port). The problem is that the DataReceived event doesn\'t seem to be fir

Answer 1

I can only surmise that the problem was indeed with the Virtual Serial Port Emulator program. this is NOT to say there is a problem with that software: VSPE has worked very well for me so far. But there was some conflict between my code and how I had set up the VSPE connector.

Answer 2

I can't say for sure, but there could be a threading issue. WPF handles threading differently, and the polling of the virtual port is asynchronous, I believe. Have you tried this with a Windows Forms or console application to prove that it can work at all?

Answer 3

I use VSPE too! It does work wonderfully.. I was having this same problem and the way I fixed it was to make the two com ports a PAIR in VSPE instead of just creating two virtual com ports