STM32F769I and LCD

[Ebun.1]

Hello.

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When using a 1024 × 768 resolution LCD with the STM32F769I,

Is performance bad?

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Doesn't it move lightly?

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If you have a proof result or other evidence, please post it.

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Thank you.

[Tesla DeLorean]

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

[Ebun.1]

Thank you for your reply.

[Martin KJELDSEN]

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

[Soren Myllerup MIKKELSEN]

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

[Ebun.1]

Hello

When selecting the STM32F769I-DISCO template in TouchGFX

Color depth can be selected only 24bit.

How do I achieve 16bpp?

[Soren Myllerup MIKKELSEN]

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

[Ebun.1]

Hello.

Thank you for your reply.