STM32H747I-DISCO TouchGFX Project – Display Not Updating After Code Changes

[rabbani_sk]

Hi Community,

I’m working on an STM32H747I-DISCO board and trying to build a simple application using TouchGFX.
I created an analog clock widget in TouchGFX Designer and successfully flashed it to the board. The clock displayed correctly on the LCD.

However, when I modify the project (for example, changing UI elements or logic) and reflash it, the display does not update to reflect my changes.
I am trying to develop application on analog clock which reads time through internal RTC and update in clock and it is failing.

I’m looking for guidance on:

1. Understanding how dual-core microcontrollers (like the STM32H747I with Cortex-M7 and Cortex-M4) handle TouchGFX applications.

2. The correct procedure to flash TouchGFX-based projects after modifications, so that updates are reflected on the display.

Any tips, explanations, or step-by-step guides would be really helpful.

Thanks in advance!