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X-NUCLEO-GFX01M2 on WB55RG only gives blank LCD

DavePfz
Associate III

I am trying to bring up the GFX01M2 on a WB55RG board. Following any of the Custom, FlashLoader, or HelloWorld applications (from the X-CUBE-DISPLAY_3-0-0 download) using STM32CubeIDE merely results in a blank LCD.

I feel I'm missing something simple, but just can't find it. In each case I have compiled and loaded the files as per the ReadMe instructions.

Any pointers appreciated...

1 ACCEPTED SOLUTION

Accepted Solutions

The combination is supported in TouchGFX version 4.25.0 (and presumably later)

 

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4 REPLIES 4
Andrew Neil
Super User

@DavePfz wrote:

on a WB55RG board


Just to be clear, that is a Nucleo-WB55RG board - yes?

A complex system that works is invariably found to have evolved from a simple system that worked.
A complex system designed from scratch never works and cannot be patched up to make it work.
DavePfz
Associate III

Yes. The specific combination (I tend to be lazy!) is NUCLEO-WB55RG and X-NUCLEO-GFX01M02.

DavePfz
Associate III

In examining the code, I think I see the problem. The specific code at:

C:\ST\X-CUBE-DISPLAY_3-0-0\Projects\NUCLEO-WB55RG\Applications

calls out the ST7789V controller.

The datasheet for the Displaytech DT022CTFT says that it uses the ILI9341 controller!

My first thought was to simply substitute the corresponding files, but I find it's not that simple. Can someone point me to code that implements the ILI9341 on the NUCLEO-WB55RG board?

Thanks.

The combination is supported in TouchGFX version 4.25.0 (and presumably later)