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arnold_w
Senior II
January 27, 2022
Solved

Is VDDUSB (pin 48) routed somewhere convenient on the STM32L476 Nucleo-64 development board?

I have an STM32L476 Nucleo-64 development board and I wish to do USB-development (simple Virtual Com Port) completely unrelated to the USB-connector that the ST-LINK Utility communicates via. I understand I need to connect ground, USB_OTG_FS_DP (PA12, pin 45), USB_OTG_FS_DM (PA11, pin 44) and VDDUSB (pin 48). I'm unable to find VDDUSB on any of the connectors. Do I need to do "PCB-surgery" (unsolder the pin, lift it and solder a wire to it) or is VDDUSB accessible in a more convenient way? Does anybody know where I can find the complete schematics pdf-file (not just the connectors or Gerber files) for this development board?

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Andrew Neil
Andrew NeilBest answer
Super User
January 27, 2022

0693W00000JNX8oQAH.pnghttps://www.st.com/en/evaluation-tools/nucleo-l476rg.html#cad-resources

A complex system that works is invariably found to have evolved from a simple system that worked.A complex system designed from scratch never works and cannot be patched up to make it work.

2 replies

Andrew Neil
Andrew NeilBest answer
Super User
January 27, 2022
A complex system that works is invariably found to have evolved from a simple system that worked.A complex system designed from scratch never works and cannot be patched up to make it work.
arnold_w
arnold_wAuthor
Senior II
January 27, 2022

Thank you.