ILI9881C DSI on STM32H747

[Iris-DM]

I have a third party screen that is driven by an ILI9881C and I am having a lot of trouble getting TouchGFX up and running.

I first started running DSIHost in Adapted Command mode with TE Pin and I could configure the driver's registers as necessary and turn the display on (with a PWM for the LED backlight), however I could not display any frame data via TouchGFX.

Looking further, I realised that the ILI9881C does not have internal GRAM, and therefore I could only run it in Video mode. 

On switching DSIHost to video mode in CubeMX, my initialisation code no longer works, with all the DSI Writes returning a timeout error.

If anyone has experience in getting this driver chip up and running with TouchGFX, or just a bit of help with configuring DSI in Video mode, it would be much appreciated!

[GaetanGodart]

Hello @Iris-DM ,

Have you adapted the timings for video mode?

You can have a look at this video to see how to set up an ILI9341 screen, it is not very different from yours I think.

Regards,

[rahulz916]

Hi all

I too need to implement driver for ILI988C1 using MIPI DSI interface. I am able to find the documents, but I cannot able to find the example .I am using stm32H750 custom PCB

Please guide me on this How to configure in stm32cube and integrate with TouchGfx

Please help me; it would be very helpful to me

Thanking You,

Rahul

[GaetanGodart]

Hello @Iris-DM ,

Have you been able to move forward on your project?

Regards,

[GaetanGodart]

Hello @rahulz916 ,

We have examples of MIPI DSI displays on the STM32F469-DK board, the STM32U5G9J-DK board, the STM32H747I-DK board, STM32H747I-Eval board, the STM32H769I-DK board and STM32H769I-Eval board.

Also, we have examples of ILI9341 (I think it is this one) on the TBS (TouchGFX Board Setup) using the GFX01 or GFX02 display.

Regards,