2020-01-29 08:27 PM
Hello.
When using a 1024 × 768 resolution LCD with the STM32F769I,
Is performance bad?
Doesn't it move lightly?
If you have a proof result or other evidence, please post it.
Thank you.
2020-01-29 09:13 PM
Well the bandwidth is pretty close to the ceiling.
62.5 MHZ LTDC, 500 MHz DSI can get you 1024x768 @ 57 Hz 16-bpp
Probably want 32-bit memory width
Had it running via DSI-HDMI on STM32F769I-DISC1
2020-01-30 12:56 AM
Depends on the complexity of your application. But 1024x768 is pushing it. 800x480 is already a stretch as it is if you want fast and fluent full screen transitions.
/Martin
2020-01-30 01:04 AM
Emerging display technologies are offering different display modules based on STM32F7s and H7s. One of them is running 1024*600, with a simple UI.
Here is a link to a video showing the 10,1" module, 1024*600, 16 bpp running a TOuchGFX application.
https://www.youtube.com/watch?v=mnShrk3nqCM&t
/Soren
2020-01-30 11:20 PM
Thank you for your reply.
2020-01-30 11:23 PM
Hello
When selecting the STM32F769I-DISCO template in TouchGFX
Color depth can be selected only 24bit.
How do I achieve 16bpp?
2020-01-30 11:50 PM
Hello Ebun1
For changing the color depth in the selected AT:
1: Browse code
2: Open project folder and and open the .ioc file which is a CubeMX file
3: Select additional software in CubeMX, set framebufferpixel format to desired color depth.
Br
Soren
2020-01-31 12:54 AM
