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TouchGFX 4.24.2 on STM32N6570-DK: Black Screen and Red LED (LD4) After Flashing

Ippo
Associate

Hi everyone,
I’m encountering an issue while working with TouchGFX 4.24.2 on the STM32N6570-DK, using STM32CubeIDE 1.17.

Here’s the situation:

  • I tested both my custom project and a demo project provided by TouchGFX.
  • I followed the recommended steps:
    1. Generate Code in TouchGFX Designer.
    2. Run the application in the TouchGFX simulator, where it executes without any issues.
    3. Build and flash the project onto the board using STM32CubeIDE.

However, after flashing, the board:

  • Shows a black screen (no content displayed).
  • The LD4 LED remains lit in red.

I verified the following:

  • The BOOT switches were in the correct positions during flashing and execution.
  • I used the correct flash scripts for the FSBL and application.

Despite these steps, the application refuses to run on the board. Even the demo projects, which should work out of the box, show the same behavior.

Has anyone experienced this issue or found a solution? Could it be related to memory configuration, the FSBL, or perhaps some compatibility issue with the board? Any help or troubleshooting suggestions would be highly appreciated!

Thank you for your support! :smiling_face_with_smiling_eyes:

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