How to connect TFT-LCD (MRB3971) and STM32, and How to develop with TouchGFX.

[KMiya.1]

Hello everyone.

My goal is to use TFT-LCD (MRB3971) with STM32L4R9 and TouchGFX.

3.97inch 16BIT Module OTM8009A SKU:MRB3971

http://www.lcdwiki.com/3.97inch_16BIT_Module_OTM8009A_SKU:MRB3971

I am challenging with NUCLEO-F429ZI because there is no STM32L4R9 Nucleo board.

However, I do not know how to connect the TFT-LCD (MRB3971) and STM32.

What confuses me is that the pin name of MRB3971 is different from the pin name of Application note AN4861.

Can you tell me how to connect?

Thank you.

[Martin KJELDSEN]

Hi,

I can't help you connect your LCD, but i've added a few more tags to maybe get you some more input. Once you get that squared away i'll help you get started with TouchGFX.

/Martin

[KMiya.1]

Dear Martin KJELDSEN

Thanks for the reply, and sorry for the slow response.

​

What does "a few more tags" mean?

​

This display has a Driver IC (OTM8009A).

The connection method is neither MIPI nor Direct connection.

So can't it be used with TouchGFX?

[Martin KJELDSEN]

Hi,

A few more tags just means that this post will be present in other sub-communities since its not a specific TouchGFX problem. Yes, the display will work with TouchGFX - TouchGFX does not "support" displays, so you can use anything you want. It's up to the HAL to transfer the pixels to the display and synchronize rendering with TouchGFX.

/Martin