I encountered a strange serial port problem on Win CE 6.0 run-time image that was built by myself.
After setting up the parameters using the Board Support Package and building the image everything started perfectly except for one thing.
My board integrates 6 COM ports but I only see 1 the COM1. I checked the Platform Builder solution and all 3 Com16550 devices are included.
I tried to test at least the COM1. For testing I used SerialPort class from .NET CF 3.5
The port COM1 opens but no traffic is sent or received.
What can be the cause?