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Trouble with configuring CTC for STM32F303ZE Nucleo board

ALapi.1
Associate

Hi,

I did the basic set up for configuring the usb micro A device connector added on the nucleo board (not the ST-Link connector). Clock is set for usb (HSE, 48MHz through PLL) and the USB_VIRTUAL is set on CTC.

I generated the code with Cube IDE and pushed it... and nothing. When I connect both usb (ST-Link and Virtual COM), my computer only sees St-Link.

Im I missing something? Is there a jumper to change place to active the second usb connector?

Thanks!

2 REPLIES 2
Imen.D
ST Employee

Hello @ALapi.1​ and welcome to the Community :)

I advise you to refer to the UM1974 and check the jumpers and pins configuration, in the section "6.4.1 Power supply input from ST-LINK/V2-1 USB connector" and Table 10. USB pins configuration.

When your question is answered, please close this topic by choosing Select as Best.

Imen

When your question is answered, please close this topic by clicking "Accept as Solution".
Thanks
Imen

Start with checking what Imen said above.

Note that 'F3 needs to have a 1k5 pullup on DP. On the Nucleo144 schematics, it's connected through SB186 to USB_Disconnect/USB_GPIO_OUT/PG6.

Check if firmware sets PG6 to output and sets it to be high.

Other than that, debug as usually.

JW