Programming to external flash on STM32U5A9J-DK fails after around 2.5 MByte. How to fix this?

[JWill.11]

I'm using a STM32U5A9J-DK with TouchGFX. Smaller projects work just fine. But aufter integrating an Animated Image (approx. 37 MBytes of assets), the programming fails. The console log is as follows:

STMicroelectronics ST-LINK GDB server. Version 7.3.0
Copyright (c) 2023, STMicroelectronics. All rights reserved.
 
Starting server with the following options:
        Persistent Mode            : Disabled
        Logging Level              : 1
        Listen Port Number         : 61234
        Status Refresh Delay       : 15s
        Verbose Mode               : Disabled
        SWD Debug                  : Enabled
        InitWhile                  : Enabled
 
Waiting for debugger connection...
Debugger connected
Waiting for debugger connection...
Debugger connected
Waiting for debugger connection...
      -------------------------------------------------------------------
                       STM32CubeProgrammer v2.13.0                  
      -------------------------------------------------------------------
 
 
 
Log output file:   ******************************
ST-LINK SN  : ******************************
ST-LINK FW  : V3J11M3
Board       : STM32U5A9J-DK
Voltage     : 1.79V
Error: No STM32 target found! If your product embeds Debug Authentication, please perform a discovery using Debug Authentication
2nd connect tentative with frequency (8MHz)
ST-LINK SN  : ******************************
ST-LINK FW  : V3J11M3
Board       : STM32U5A9J-DK
Voltage     : 1.79V
SWD freq    : 8000 KHz
Connect mode: Under Reset
Reset mode  : Hardware reset
Device ID   : 0x481
Revision ID : Rev C
Device name : STM32U5xx
Flash size  : 4 MBytes (default)
Device type : MCU
Device CPU  : Cortex-M33
BL Version  : 0x92
Debug in Low Power mode enabled
 
      -------------------------------------------------------------------
        Choose flashing speed for Cortex M33 series.(default speed=Reliable)                  
      -------------------------------------------------------------------
 
 
 
Memory Programming ...
Opening and parsing file: ST-LINK_GDB_server_a17156.srec
  File          : ST-LINK_GDB_server_a17156.srec
  Size          : 37.26 MB 
  Address       : 0x08000000 
 
 
Erasing memory corresponding to segment 0:
Erasing internal memory sectors [0 38]
Erasing memory corresponding to segment 1:
Erasing external memory sectors [0 591]
Download in Progress:
 
 
Error: failed to download Segment[1]
Error: failed to download the File
Encountered Error when opening C:\ST\STM32CubeIDE_1.12.0\STM32CubeIDE\plugins\com.st.stm32cube.ide.mcu.externaltools.cubeprogrammer.win32_2.0.600.202301161003\tools\bin\STM32_Programmer_CLI.exe
Error in STM32CubeProgrammer
Shutting down...
Exit.

In the debug configuration, following external loader is specified:

MX25LM51245G_STM32U599J-DK.stldr

I tried to read out the memory using a J-Link with the JMem tool. There, I noticed, that after around 2.5 MByte, the content is filled with FFFF... The external flash should have 64 MByte.

Is there a way to fix this issue?

[Tesla DeLorean]

Perhaps one could simply install STM32CubeProgrammer versions in to different directories, and run those individually / independently. Or put the version you want to use in a Path that CubeIDE is going to use / find..

[TuanLe]

I can install an old version (v2.8) of STM32CubeProgrammer in a different folder. TouchGFX can use this version to flash the dev board, but STM32CubeIDE still uses its own plug-in in a separate folder, and I cannot change it. There are some missing external loaders in the new version, in this case, the missing external loader is MX25LM51245G_STM32U599J-DK.stldr. So, I just copy the file from the old version's location to the relevant plug-in folder. And it fixes the issue.