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

RZ
Associate II

‎2020-02-21 05:16 AM

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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PatrickF
ST Employee

‎2020-02-21 05:42 AM

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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