make a qspi external loader for STM32H7B0VBT6

[SEMad]

Hi.

I want to make a qspi external loader for STM32H7B0VBT6 (for winbond chips)...

but this MCU has OCTOSPI instead QUADSPI...

now, my question is how to configure the settings for a quadspi chip (like w25q64) in CubeMX?! (https://www.youtube.com/watch?v=alzv6qg4lH0)

and is this the only difference between octospi and quadspi for making external loader or maybe should do anything else (like changing some code or...)?

[Tesla DeLorean]

These loaders are all materially very similar.

Winbond W25Q devices are all usable via the OCTOSPI peripheral, the command structure gets a little more involved/specific. I've had them working on NUCLEO-H7A3ZG boards.

I'm not a code generator developer, I would recommend writing and testing your BSP, including Write and Erase, outside of the loader as this is far easier to test and debug.

https://github.com/cturvey/stm32extldr/blob/main/h7a3_octo_pins.txt

[Amel NASRI · Accepted solution]

Hi @SEMad​ ,

The answer to your question "how to configure the settings for a quadspi chip" is in the article Does OctoSPI interface support QuadSPI memories?

In the mentioned application note, you need to refer to the tables "STM32CubeMX - Configuration of OCTOSPI signals and mode" and look deeply to the provided examples.

-Amel