STM32N6: External Loader Manager, ISSI Flash

Clyasenth · ‎2025-05-27

Hello,

Hello, in our project we are using an STM32N6 MCU and an external flash from ISSI with this MCU. Datasheet of the flash's link in the below.

https://www.issi.com/WW/pdf/25LX-WX032-064.pdf

During debugging, we read the flash using standard commands, and the values we read appear as shown in the image.

Everything works fine up to the code marked with the red box;

however, when it reaches that point, we get an error. If we comment out the code marked with the red box, it works, but when we try to read using the cube programmer, we get a "read fail" error. What could be the issue?

Also, is the ExtMem driver supports 1S-8D-8D?

Best regards,

Egemen Aksoy

KDJEM.1 · ‎2025-06-10

Hello @Clyasenth;

Could you please check your configuration?

Are you able to execute code from external memory?

May these articles can help you:

Thank you.

Kaouthar

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