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ho_it
ho_it
Associate III
October 20, 2014
Question

STM32F2xx VCP Open Port Failed

  • October 20, 2014
  • 11 replies
  • 2658 views
Posted on October 20, 2014 at 07:48

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

http://stackoverflow.com/questions/14885288/io-exception-error-when-using-serialport-open

I believe it is the firmware problem, anyone face this problem and managed to solve this?
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    chen
    chen
    Associate II
    October 21, 2014
    Posted on October 21, 2014 at 12:59

    ''May I know how to implement the Zero packet length (ZPL), i tried to send data of size 0 but is not working''

    Pass. I only work on the STM32, a colleague of mine does the PC programming.

    I told you before - This Is NOT the forum for PC programming!

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