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RZ_it
RZ_it
Associate II
February 21, 2020
Question

What is the function of PA13 (BOOTFAILN) on the STM32MP15x

  • February 21, 2020
  • 1 reply
  • 1064 views

I'm working on a design with the STM32MP153 and came across the additional function of PA13 as BOOTFAILN.

I can guess what this means but I can't find any documentation on the subject. Don't know when or why this pin gets active. Or is it an input? In the reference design schematics both a LED and a switch are connected to this pin.

Thanks for any insight.

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1 reply

PatrickF
PatrickF
Technical Moderator
February 21, 2020

please have a look to https://wiki.st.com/stm32mpu/wiki/STM32MP15_ROM_code_overview#Debug_and_Error_messages and also 8.3.5 "Debug triggers and LEDs" of AN5031

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