STM32H743 LTDC Display Flickering Issue with LI10600T070IA3098-TCF

[Mukeshkanna]

Hello,

We are using an STM32H743 MCU with the LI10600T070IA3098-TCF LCD panel (1024×600 resolution) through a 24-bit RGB LTDC interface. We are experiencing display flickering, as shown in the attached video.

Could you please help us identify the possible root cause? Kindly let us know what additional information (schematic, LTDC timing parameters, oscilloscope captures, PCB layout, etc.) would be required from our side to assist in debugging this issue.

Any guidance or recommendations would be greatly appreciated.

https://drive.google.com/file/d/1wClnXqdIc8OI-4y19CmWxJERnSnIYUK-/view?usp=sharing

 

[mƎALLEm]

Hello ​@Mukeshkanna and welcome to the ST community,

1- Sorry I can’t open a link from google drive. Meanwhile LCD flickering could be due to a Cortex-M7 speculative access to a non valid external memory region. Please refer to this knowledge base article: Speculative access on Cortex®-M7 and Cortex®-M85 based STM32: A practical guide

2- For the LTDC configuration and timings you can refer to the application note: AN4861 “Introduction to LCD-TFT display controller (LTDC) for STM32 MCUs”