CubeIDe 1.15.0 FW_f4_1.28.0 USB CDC not working

[RÖztü.1]

Hello, I have a very simple code written with earlier versions of CubeIDE and FW_F4_1.26.2 for STM32F405rgt6

It is a very simple code, just sending a message via USB as a CDC Device . If I download the old .elf file to controller, everything works fine, but windows won't see the device nor get the messages when I compile it with 1.28.0 FW .

Is there a difference with usage? Or is there a bug with this?

Here is the code.

[Mahmoud Ben Romdhane · Accepted solution]

Hello @RÖztü.1 ,

First let me thank you for posting and welcome to the ST Community.

I suggest that you take a look at this Post.

The issue has been already reported internally to Dev team for correction (under internal ticket number 177153) and this will be fixed ASAP.

Thanks.

Mahmoud.

[RÖztü.1]

Thank you for information and also sorry for this very late answer.

Since there is still no fw update on f4 package, I wonder if there is a patch around? Or any workaround about this matter? I'm not able to create new projects with f4 chips using usb cdc while this problem going on.

Thanks in advance.