STM32U575RGT6 without UCPD

[Mickael_Biyotee]

Hi,
We're in the process of developing a new board and I've got a question about USB.

We would like to have a USB device with MSC only.

Can we not activate the UCPD and work with the TCPP01-M12 FLT, DB CC1 and CC2 signals at ground (as on the STM32U545 eval kit)?

At the moment, I can't get the USB to work without the UCPD enabled on the NUCLEO-U575ZI-Q board.

[jiangfan]

Your question:

We would like to have a USB device with MSC only.

Can we not activate the UCPD and work with the TCPP01-M12 FLT, DB CC1 and CC2 signals at ground (as on the STM32U545 eval kit)?

 

I think it is OK to have a USB device with MSC to work without UCPD (UCPD pins floating).

 

[Mickael_Biyotee]

Hello,
I could not get the USB device to work without the TCPP01-M12 FLT, DB CC1 and CC2 signals.
I have modified my hardware to drive the signals as on the NUCLEO-U575ZI-Q board.
thank you for your feedback.