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Associate II
July 31, 2025
Solved

STM32N6 unused XSPI pins

  • July 31, 2025
  • 1 reply
  • 187 views

Hi all,

I'm designing STM32N655L0 based board and I've one question.

I'm using XSPI1 and XSPI 2 peripherals.

  • XSPI2->Octa SPI mode, NOR Flash
  • XSPI1-> SDRAM, Hexa SPI

So my question is can I use unused CS, NCLK pins as an IO?

I just wanted to be sure.

 

BR

Best answer by ELABI.1

Hi @batuhanky 

Yes, it's possible. Just be sure that these GPIOs are not used and not interfaced with external memories.

Thank you.

ELABI.1

1 reply

ELABI.1
ELABI.1Best answer
Technical Moderator
July 31, 2025

Hi @batuhanky 

Yes, it's possible. Just be sure that these GPIOs are not used and not interfaced with external memories.

Thank you.

ELABI.1

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