STM32F469 & ST7701S (with SDRAM & QSPI) like STM32F469 Discovery

[Dev_ST_stlp]

Hello,

A topic I am struggling with.

On the STM32F469 Discovery board, I would like to connect a display (800x268) with a MIPI DSI connection, and the controller is an ST7701S.

I would like to know how to do this (and if anyone has faced the same issue). I’ve tried several configurations but still nothing happens, the screen stays black (with the backlight on).

Is there anyone who has a project to share (based on the STM32F469 Discovery) to get this display working?

The SDRAM (FMC) and external flash memory (QSPI) are external.

Thank you for your help.

[mƎALLEm]

Hello @Dev_ST_stlp and welcome to the ST community,

Look at this thread you may contact the OP to share a solution with you.

[Dev_ST_stlp]

Thanks but It doesn't help really, I would like to know if someone had the same issue with the same ref of µC STM32F469 and how to configure it, I mean how to configure MIPI properly and how to initialize it for correct behavior with ST7701S. Once again thanks 

[mƎALLEm]

The same display with the exact MCU part number.. not so easy to find someone that had the same scenario as you, that's why I provided the nearest thread related to your question.

Good luck with that.

[Dev_ST_stlp]

Thanks again for your previous advice. I reached out to the LCD supplier to get the initialization code and parameters, but unfortunately, the screen remains completely black (even though the backlight is ON).

I suspect the issue might be related to the DSI configuration or clock settings. Would any kind soul be willing to share a working example or project that includes:

- the appropriate driver for this controller (ST7701S)
- the correct DSI / LCD configuration,
and the necessary clock parameters?

It would really help me move forward with this integration.
Thanks in advance for any support!

[joker_007]

I also encountered the same problem, the most basic process did not light up, and the DSI configuration failed many times.