NUCLEO-H743ZI2, Unknown USB Device

[Sheraz2568]

Hello,

I'm attempting to set up the CN13 USB port as a Virtual COM Port (VCP) for transferring data to LabVIEW. Unfortunately, I'm encountering an error message that reads "Unknown USB Device (Device Descriptor Request Failed)." I've already installed the relevant drivers, but the issue persists.

 

NOTE: I am trying to USB_FS for high-speed data transferring to LabVIEW as alternative for UART. 

 

[Issamos]

Hello @Sheraz2568 

I suggest you to click on the unknown USB device and update the driver. That may solve the issue.

Best regards.

II 

[Sheraz2568]

Hello @Issamos 

Yes! Already did that before posting here, but it didn't work out. 

Thank you 

 

[Pavel A.]

This means that Windows cannot read the required USB device descriptors (it even says so in plain text: "device descriptors request failed"). Debug your firmware, find which request fails. 

Note: fumbling with drivers on the Windows side won't help until the device can be recognized correctly.

[FBL]

Hello @Sheraz2568 

Did you try to access DFU mode? If not, check this post.