External QSPI Loader for MT25QL128A: "Failed to Download File" in STM32CubeProgrammer

[Furkan2]

Hi,

I am creating an External QSPI Loader for STM32U5G7VJTx with MT25QL128A flash.

* QSPI driver is implemented and tested successfully in a standalone STM32 project.
* Read, Write, and Erase operations are working correctly.
* For the External Loader project, I used the loader template files (Dev_Inf.c, Dev_Inf.h, linker script, etc.) and integrated my QSPI driver.
* The loader builds successfully and generates the .stldr file without errors.

However, when I load the external loader in STM32CubeProgrammer and try to program a .bin file to the external flash, I get the error: "Failed to download file".

What additional changes are required after completing the QSPI driver coding step? Are there any common issues related to Init(), Write(), SectorErase(), linker configuration, or Dev_Inf settings that could cause this error?

Any guidance would be appreciated.
 

 

[KDJEM.1]

Hello ​@Furkan2 ;

 

Could you please look at MT25TL01G_STM32H743I-EVAL/Sources/Loader/Loader_Src.c and check your source.c file.

 

Kaouthar