Skip to main content
NMun.1
NMun.1
Associate
April 9, 2021
Question

Can STM32H730 support booting from external flash memory by Single-SPI OCTOSPI ?

  • April 9, 2021
  • 2 replies
  • 827 views

Hi,

I want to use external flash memory for booting on STM32H730.

If change BOOT_ADD0 to 0x90000000, I think it's possible.

But am not sure Single-SPI flash memory, such as M25P05-A, is possible or not.

If possible, pls let me know the recommended flash memory list.

Regards,

Namsu

This topic has been closed for replies.

2 replies

Tesla DeLorean
Tesla DeLorean
Guru
April 9, 2021

Pretty sure it can't directly as it doesn't know about pin usage, clocks and parts.

​

Y​ou should be able to have a small amount of code in the internal flash to bring up the interface and transfer control.

Tips, Buy me a coffee, or three.. PayPal Venmo (See Profile) Up vote any posts that you find helpful, it shows what's working..
NMun.1
NMun.1Author
Associate
April 9, 2021

Thank you for fast and kind reply.

You mean that can not use OCTOSPI port without help of other code in the internal flash, regardless of whether flash type is XIP or BootROM. If I use XIP flash memory (memory mapped) such as MX25LM51245, is it possible ?

Namsu

Terms & ConditionsAccessibility statement