800 x 800 Display with STM32U5G9VJT6Q - possible?

[Ricko]

Hi,

we are trying to get a 800x800 display to work with the STM32U5G9VJT6Q, using either RGB888 or RGB565 in Video Mode (Burst).

According to what we read it is definitely possible. Did we miss something?

Could someone please confirm that is definitely possible?

Much appreciated

Thank you

[Kelly3]

@Ricko , 

Thank you very much for your reply and sharing your project!

I shipped my hardware platform to ST several weeks ago.  I hope I can get it working in either command mode or video mode with help from ST.  The display manufacture does not provide tester to demonstrate HS mode data transfer, and the IC driver manufacture does not respond to my inquiry on the timing that controls HS to LP, LP to HS timing transition on data line and clock line. Which makes the debug even harder. I wish ST can revise their HAL driver to allow user to use  HAL_DSI_LongWrite() directly to transfer image data from buffer to display at its maximum packet length of 65534 bytes. 

Best Regards,

[Kelly3]

@Ricko ,

Thank you for the code again. I have one question :

Is project "Bare_Metal_800_20250514_HSE16.7z" the one that displays image right-left swapped?  Is it 60fps as expected? 

Regards,

 Kelly

[Ricko]

Hi @Kelly3 

it has been so long ago that I honestly don't remember. I actually think that was the latest from ST which was not tested because by the time they answered the projhect was stopped.

Is it not working? Do you not get anything at all?

From memory the refresh rate was 30fps or less. We were using only images, not videos (just mentioning if it is relevant).

Best

Rick

[Kelly3]

@Ricko Thank you!