Which pins of the Stmod+1 & 2 connectors correspond to the MCU pins for the B-U585-IOT02A board?

jea74 · ‎2023-04-15

I cannot find the logic in the schematics about the mapping of the 2 stmod+ connectors.

Which pins of the stmod+ correspond to the MCU pins ?

Page 7 of the schematic folio is very confusing.

I just found pin 3 & 4 of the stmod+2 to be mapped to PG10 & PG9

Peter BENSCH · ‎2023-04-16

This is perhaps more understandable if you look at it together with UM2839, section 7.12.

In the schematics of the board on page 7, however, everything is actually listed neatly:

STMOD+.1 UART2 CTS = PA0
STMOD+.1 SPI1_NSS = PA4

etc.

And PA0 and PA4, for example, can then be found on page 3 on the STM32U585AII6QU, like all the other pins.

Does it answer your question?

Regards

/Peter

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View solution in original post

Peter BENSCH · ‎2023-04-16

This is perhaps more understandable if you look at it together with UM2839, section 7.12.

In the schematics of the board on page 7, however, everything is actually listed neatly:

STMOD+.1 UART2 CTS = PA0
STMOD+.1 SPI1_NSS = PA4

etc.

And PA0 and PA4, for example, can then be found on page 3 on the STM32U585AII6QU, like all the other pins.

Does it answer your question?

Regards

/Peter

In order to give better visibility on the answered topics, please click on Accept as Solution on the reply which solved your issue or answered your question.

jea74 · ‎2023-04-17

Dear Peter,

Thank you - the perfect example of the guy not reading the user's manual till the end...

I focused only on the schematics, for sure the Stmod+ tables in the UM are more helpful to know which pin is wired to the MCU

Kind regards,

Jerome