How to set up HS CDC of STM32H747-Disco in CubeMX6.2.1?

[JHuan.4]

I can transmit data to my computer when I used HS CDC in FW_H7_V1.8.0 of CubeMX6.0.1. Yesterday, I updated CubeMX6.0.1 into CubeMX6.2.1 and also used FW_H7_V1.8.0, but the HS CDC showed STMicroelectronics Virtual COM Port error code "10".So, I set up heap size in 0x1000,0x2000,0x4000, it can't solve error code "10".

Then I used FW_H7_V1.9.0, the HS CDC show unkown device.

What should I do?

[Imen.D]

Hello @JLi.14n Huang​ and welcome to the Community :)

Can you please try the proposal in this discussion.

Then, please keep me informed about your update.

Imen

[JHuan.4]

Hello @Imen DAHMEN​ ,

The discussion doesn't solve my problem.

I only know that CubeMX6.0.1 and CubeMX6.2.1 differ in setting up USB clock.

I can't set up USB clock ,and the USB clock is 480MHz.But the HS CDC can work in CubeMX6.0.1.

I can manually set up USB clock ,and the USB clock is 48MHz.But the HS CDC can't work in CubeMX6.2.1.

​

Please tell me what's the difference between CubeMX6.0.1 and CubeMX6.2.1, and how to set up CubeMX6.2.1.

I think that the update should be better than before.Apperently the update gave me more problems.

​

If every time I need to change the base code,when I generate new code in last update of CubeMX. I think that update loses its purpose, because I have to spend much time on debugging.

[Imen.D]

Hi @JLi.14n Huang​ ,

I raised this issue to CubeMX team for review.

Hi @Khouloud ZEMMELI​ , @Khouloud OTHMAN​ ,

Can you please answer to @JLi.14n Huang​ regarding the difference of USB clock setting between CubeMX6.0.1 and CubeMX6.2.1.

Imen