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M
MarekGodlo
Associate
April 30, 2026
Solved

NUCLEO-U385RG-Q PB7 Morpho pinout inconsistency in UM3062

  • April 30, 2026
  • 1 reply
  • 127 views

Hi everyone,
I am working with the NUCLEO-U385RG-Q (MB1841) and I've noticed an inconsistency in the UM3062 user manual, specifically in Table 18 (ST Morpho connector pin assignment).
The documentation states that PB7 is available on the Morpho connector at pin 5 of CN10. However, in the standard factory configuration, this does not seem to be the case. It appears that the connection depends on the solder bridge (SB) configuration, but the manual is not explicitly clear about the default state for this specific board variant.
This makes the pinout tables quite confusing at a glance.
Could you please tell me where I made a mistake and are there any other reliable sources of information about the pinout connections for this Nucleo board?

Thank you in advance for information.

Best answer by Seb

I'll pass the wish for clarity improvement in the user manual.

Looking at the schematics (PDF): 

Seb_0-1777656476022.png

Seems PB14 is the default connection.

Would a board netlist file like the ones in this :

STM32C5-M2-Serial-Mem-QSPI-Display/HW_BoardBank at main · stm32-hotspot/STM32C5-M2-Serial-Mem-QSPI-Display · GitHub

generated by an experimental python script inputs a board netlist text file and a BOM xls file (which tells if a component is fitted or not) outputs the following C format netlists:

Seb_1-1777656729762.png

Would such content be somewhat useful for users if the NUCLEO-U385 was also included ?

 

1 reply

Seb
SebBest answer
ST Employee
May 1, 2026

I'll pass the wish for clarity improvement in the user manual.

Looking at the schematics (PDF): 

Seb_0-1777656476022.png

Seems PB14 is the default connection.

Would a board netlist file like the ones in this :

STM32C5-M2-Serial-Mem-QSPI-Display/HW_BoardBank at main · stm32-hotspot/STM32C5-M2-Serial-Mem-QSPI-Display · GitHub

generated by an experimental python script inputs a board netlist text file and a BOM xls file (which tells if a component is fitted or not) outputs the following C format netlists:

Seb_1-1777656729762.png

Would such content be somewhat useful for users if the NUCLEO-U385 was also included ?

 

M
MarekGodloAuthor
Associate
May 2, 2026

Thank you for your responce.

I think it would be really helpful if it were included.

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