external memory loader for STM32H7S3L8H not working

[JBias]

I am trying to port an existing design that did not use the external memory loader into a version where I can use the external memory loader so that I can add additional code.

I watched the videos and read the materials and have successfully made the example version that works. Looking at the memory at 0x9000_0000 I see the following

 

However, when I attempted to build a version by porting all my code into a fresh build I get a external memory which appears to be missing data from 0x9000_0000 to 0x9000_02b0. In other words the data in the above ext_mem_loader example at 0x9000_02b0  appears at 0x9000_0000 in the Appli version. The Appli version jumps to 0xF3AF4804 which is bad

What can I do to fix? Where should I be looking? 

Code was generated using ST MX ver 6.13.0 and ST IDE ver 1.17.0

 

 

 

 

[KDJEM.1]

Hello @JBias;

 

Can you please precise which memory are you using? Are you using Nucleo-H7S3L8 board?

Can you share your project?

I recommend you to look at Getting started with External memory Manager and External memory loader and get inspired to check your project configuration.

This article presents a detailed tutorial on the implementation of the External Memory Manager and External Memory Loader middleware functionalities. The article also features a configuration sample utilizing STM32CubeMX, which can be used as a reference to apply these functionalities to:

• Configure the External Memory Manager.
• Configure the External Memory Loader.
• Build a BootFlash application.

Also, I think this Template_XIP can help you.

 

Thank you.

Kaouthar

[JBias]

Kaouthar,

I am using the Nucleo-H7S3L8 board.

Thanks for the references. I am looking into them. Seems like the MX tool did not add the .isr_vector in the loader.

After manual editing post MX I am able to get the program running from external Flash. I do not know why the MX tool would not add the .isr_vector in the loader but, time permitting,  I will post details on what I had to do as a work-around.