STM32H7B3i-DK - Inconsistency between Schematic and Users Manual for Arduino headers

[JMors.1]

I'm looking to use the Arduino header on the STM32H7B3i-DK, however I am finding an inconsistency between what is defined in the Schematic and what is listed in the Users Manual.

Example:

For header C10 Pins 1 and 2:

The schematic shows these mapped to MCU Pin PF10 and PI7 respectfully.

The User's Manual shows this mapped to MCU Pin PD1, PI2 respectfully

For header C11 Pin 1:

The schematic shows this mapped to PH14

The User's Manual shows this mapped to PB11

Header CN20, Pins 1, 3, and 4 do not match between the Schematic and User's Manual.

Reference:

User Manual: https://www.st.com/resource/en/user_manual/dm00610478-discovery-kit-with-stm32h7b3li-mcu-stmicroelectronics.pdf

Schematic:: https://www.st.com/resource/en/schematic_pack/mb1332-h7b3i-b02_schematic.pdf

Is there a way to verify which is the correct one?

Thanks

[TDK]

> Is there a way to verify which is the correct one?

Two options:

• Probe for continuity between the pin and the output. Easy if you have fine enough probes.
• Set the pin as GPIO and toggle it. Measure the output with a multimeter/scope/logic analyzer.

[JMors.1]

I suppose I had to clarify my question.

Would it be possible that someone from ST could clarify which is correct; the User;s Manual or the Schematic, or just correct the documentation?

[Andreas Bolsch]

There's already a newer schematic https://www.st.com/resource/en/schematic_pack/mb1332-h7b3i-c01_schematic.pdf

But there seems to be no difference relative to B02 regarding the Arduino connectors.

[JMors.1 · Accepted solution]

Yeah, I had seen that, however I have a B02 version board so I was just matching the schematic to the board.

I do think the User's Manual is more likely wrong.

[Mike_ST]

Thank you for reporting.

The schematics (B02 or C01) are correct.

The User's Manual will be updated.