PixelDataWidget Application note: I want to display camera data on LCD using Touchgfx library.

[Uc.2361]

Hello Everyone,

I am new to this Touchgfx 4.12.3 c++ library and FreeRTOS environment.

I am working on a project which need to grab the camera data from DCMI peripheral and display on the LCD. I have done it in bare metal and I have no issue but I am switching my complete project into Touchgfx freertos environment.

I researched alot on the procedure, but there is no proper example how to use this pixel data widget? or DynamicBitMap widget?.

I have checked the following links regarding the same but no help:

I am able to display and image created in touchgfx designer tool.

I am able to directly display the camera data on the LCD by writing to the buffer directly without using widget but i am unable to show image at that particular time and the video hangs up after sometime.

Note: Tools and micro controller used:

STM32f746IG, TouchGFX 4.12.3 Designer tool, IAR embedded workbench.

External SDRAM is used as the Buffer.

Thanks in Advance,

Upender

[Uc.2361]

Hello TouchGFX Team,

Can any one help on the above posted Issue.

[scottSD]

@Uc.2361​ 

Have you had any success with this?

I ran across this discussion recently:

https://community.st.com/s/question/0D50X0000BaM1vV/i-interfaced-camera-to-the-stm-32f746g-i-used-pixeldata-widget-to-show-the-camera-feed-and-created-gui-above-it-the-problem-is-that-i-have-tearing-when-i-am-using-gui-on-top-of-the-pixel-widget-i-think-its-synchronization-problem

I am not familiar with the Pixel Data Widget, but I am familiar with Dynamic Bitmaps. Here is a link about them:

https://touchgfx.zendesk.com/hc/en-us/articles/207460605-Dynamic-Bitmaps-Load-images-at-runtime