STM32G External Loader The External Loader Wrote to the Wrong Address

[atilkicioglu]

I have an external loader with a starting address of 0xA0000000. I can perform read and write operations with this loader using CubeProgrammer. However, when I define the external loader via CubeIDE, it programs the address 0x080000000.

 

 

Here is my flash.ld

 

The external loader starts working when I start it with the external loader address 0x00000000, but I want to start with 0xA0000000. How can I fix it ?

[Dor_RH]

Hello ​@atilkicioglu,

The issue is that CubeIDE is programming 0x08000000 (internal flash) instead of your external flash at 0xA0000000.

I recommend you check these two official ST wiki articles, they cover the full external loader creation process:

• Introduction to External memory Loader
• Getting started with External Memory Manager and External memory loader

The stm32-memory-loaders GitHub repo also has ready-to-use STM32G4 examples to use as a starting base.