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Use NUCLEO-N657X0-Q as custom ASIC over Octal SPI?

Atch123
Visitor

‎2026-01-29 4:41 AM - last edited on ‎2026-01-29 4:59 AM by

 Hi,

Can i use the NUCLEO-N657X0-Q board as custom ASIC over an Octal SPI style bus?

Thanks

Atchaiah

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mƎALLEm
ST Employee

‎2026-01-29 5:03 AM - edited ‎2026-01-29 5:56 AM

Hello @Atch123 and welcome to the ST community,

I don't know if you are colleagues (with this OP post). But that question was almost already asked there ..

To give better visibility on the answered topics, please click on "Accept as Solution" on the reply which solved your issue or answered your question.
Andrew Neil
Super User

‎2026-01-29 5:04 AM - edited ‎2026-01-29 5:04 AM

Welcome to the forum.

Please see How to write your question to maximize your chances to find a solution for best results.

 

Your question is unclear: what do you mean by "use the board as a custom ASIC"?

The STM32 is a microcontroller.

 

Does this thread help: STM32N6570-D: Is XSPI/OSPI for memory only, or also external peripherals ?

A complex system that works is invariably found to have evolved from a simple system that worked.
A complex system designed from scratch never works and cannot be patched up to make it work.
mƎALLEm
ST Employee

‎2026-01-29 6:05 AM - edited ‎2026-01-29 6:26 AM

@Atch123 wrote:

 Can i use the NUCLEO-N657X0-Q board as custom ASIC over an Octal SPI style bus?

So if I assume I understood your question: that "Nucleo board" will play as a kind of slave of another OSPI master, the answer: that's not possible. OSPI embedded in all STM32 MCUs is always a master and cannot be configured as a slave.

To give better visibility on the answered topics, please click on "Accept as Solution" on the reply which solved your issue or answered your question.
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