Connecting larger 154mm TFT Display to STM32F769I Eval board

[TMaya.1]

Good Morning.

We have developed an application based upon the eval board above and the included 100mm TFT. I now need to replace the TFT with a new 154mm version. (Data sheet attached).

However, the new TFT has a 50 pin ribbon cable which is different to the ribbon on the 100mm TFT. What is the best way forward? Create a connector board to sit between the new TFT and the eval board or look at a different eval board.

Apologies if this is a basic question, I have just inherited this project with very little hand over.

Thanks Tony

[MM..1]

Hi Tony,

display on Eval board have different interface as your planned. DSI vs RGB

connecting RGB 24bit display need 24+ sync signals from STM to LCD and is high speed. Isnt simple connect this to board with other peripherals.

As you write better is create custom board and here you have two ways: Create board for LCD only and connect to for example Nucleo board,

or create complete custom board for LCD and STM.

Or choice other DSI LCD

[Tesla DeLorean]

Don't have the board to hand, but doesn't it just expose the CN15 Mictor connector for the DSI screens, and without the CN18 parallel connector?

To use a parallel RGB screen from a DSI feed you're going to need a DSI-to-Parallel RGB bridge chip at the point where it interfaces the screen's cable assembly.

Not specific recommendations, but class of device

https://www.ti.com/product/SN65DSI83

https://www.quicklogic.com/products/display-bridges/arcticlink-iii/

Renesas Tremolo-M MIPI DSI-to-RGB Bridge 

Wouldn't it be easier to find or order a panel that more closely matches the interface expectations?

[TMaya.1]

Thanks for the feedback guys. I will investigate alternatives.