STM32Cube USB CDC Unknown USB Device

[Ita Dab]

Posted on January 24, 2018 at 09:37

im lost! im trying to create usb cdc in STM32F405RG

the only thing im doing is to configure usb_fs as device and the usb class as a communication device class than i generate a code in STM32CUBEMx when using STM32L4 board the usb recognized as a CDC in the pc but regarding the STM32F405RG i get unknown usb device in the device manager.

this problem happening  in every STM32F4 board i used. it is like that STM32CUBEMX not working proparly.

can someone help me? thaks a lot!

[Ben K]

Posted on January 24, 2018 at 13:30

Did you try disabling VBUS detection in the USB configuration?

[Ita Dab]

Posted on January 24, 2018 at 13:40

The vbus already disabled

[Imen.D]

Posted on May 08, 2018 at 12:02

Hello

itamar868

,

I recommend you to increase heap and stack sizes in the STM32CubeMx setting.

Best Regards,

Imen