AnsweredAssumed Answered

STM32F2xx VCP Open Port Failed

Question asked by ice111 on Oct 20, 2014
Latest reply on Oct 21, 2014 by sung.chen_chung
I am using STM32F2xx and I emulate it as a VCP driver, I used the sample code from STM32 for the USB device example

I wrote a .NET application to open the serial port communication, but I have problem to open the port.

The error stack is below:
System.IO.IOException The parameter is incorrect

My problem could be well summarised in the link below, I have the identical problem with it! I could open the serial port using a terminal program(TeraTerm) but my application cant open

I believe it is the firmware problem, anyone face this problem and managed to solve this?