How make external loader w25q256 for STM32H723zgt6?

Hi How to make external OctoSPI loader for STM32H723zgt6 with octospi and w25q256

Thanks.

[Tesla DeLorean]

The mechanics of the loaders are the same for QUAD and OCTO SPI. If you have a working BSP for your part on your board you should be able to migrate that into a loader. Getting the Erase and Write performing correctly in your BSP and an App you can debug will help speed the process.

Thanks, but I don't know how to make it for stm32h723zgt6 and w25q256

[KDJEM.1]

Hello @unknown ;

The OCTOSPI provides a flexible hardware interface, that enables the support of multiple hardware configurations: Single-SPI (legacy SPI), Dual-SPI, Quad-SPI, Dual-quad-SPI and Octo-SPI.

The W25G25 is a serial flash memory with DUAL/QUAD SPI.

To configure this QUAD memory, I recommend you to refer to AN5050 table 6.

 Also I think How to create an external QSPI loader MOOC can help you.

When your question is answered, please close this topic by choosing "Accept as Solution". This will help other users find that answer faster.

Kaouthar

 

Thank you, but can I use an external loader that I previously wrote for stm32h743iit6 and for Quad spi  for this micro?

If possible, give a project to generate the stldr by octospi

[KDJEM.1]

Hello @unknown ,

Thanks to STM32CubeProgrammer software description you can create a a new external memory loader. For that, please follow the steps shared in UM2237 and precisely 2.3.3 Developing customized loaders for external memory section.

 Thank you.

Kaouthar

[Tesla DeLorean]

They are very similar, but the HAL / peripheral for the OCTOSPI is different, so you'll need to port to the new forms/structures for the commands, width, etc.

Unfortunately ST doesn't compensate or sponsor my work.