USB - Virtual Comm Port example Driver problem

prasad2 · ‎2010-01-20

Posted on January 20, 2010 at 17:21

prasad2 · ‎2011-05-17

Posted on May 17, 2011 at 13:38

Hi,

I am executing the VCP example with STM3210E eval board.

After execution of example (STM32_USB-FS-Device_Lib_V3.1.0) I can see that PC is not able to recognize the device and placing the device 'CD Class example' in other device category i.e. enumeration process is working.

Please check the attachment file which shows the status in device manager window.

I have installed the 'vcpdriver_v1.1_setup' from ST and have also done changes in 'platform_config.h' file to select right board.

Any suggestions if I am missing some steps to turn Virtual comm port ON?

Regards,

Prasad

chikos33 · ‎2011-05-17

Posted on May 17, 2011 at 13:38

Hi prasad,

Have you defined the ''STM3210E-EVAL'' in your project pre-compiler configuration (because if you have ''STM3210C-EVAL'' or ''STM3210B-EVAL'' in the project ocnfiguration it won't work even if the platform_config file is correct)?

Have you connected another version of VirtualComPort from ST previously?

If you did (and even if you didn't), try to uninstall the driver while the board is connected, then unplug->plug it again. (windows identifies the device with the device name which could be the same for many devices versions and could cause recognition errors like this).

hope it helps...

Cheers,