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PLaid.1
Associate II
November 26, 2025
Question

Documentation Error re UARTs on B-WL5M-SUBG1 schematic

  • November 26, 2025
  • 1 reply
  • 110 views

There appears to be mislabeling of PINs PC0 and PC1 on the MB1779B schematic pack. found  here  on sheet 3 of 8.  The PC0 and PC1 pins are mislabeled as UART1s but according to the datasheet for STM32WL5MOC they are actually LPUART1 as Alternate AF8.  

1 reply

TDK
Super User
November 26, 2025

They are labeled UART1 of the STMOD+ connector. This is correct. The "UART1" here refers to the STMOD+ connector, not the peripheral on the chip.

TDK_0-1764192058519.png

The same as how other STMOD+ pins are labeled--GPIO4 vs PC13.

TDK_0-1764192146917.png

STMod+ interface specification - Technical note

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