IMXRT1166 SDK LVGL Demo Widgets Example does not run

[burhanhagi]

Hi,

I am trying to evaluate LVGL v9.2.1 performance and compare with LVGL 8.3.10 to see VGLite improvements if any.

I am uisng MIMXRT1166-EVK Board and 25.06.00 SDK. I am importing both lvgl_demo_widgets_cm7 example for OS and for Bare metal. 

** Baremetal example runs properly, however VGLite is not active in baremetal. That is why I have to use the example with FreeRtos one. However, after compiling and deploying the code to board, it displays nothing. I compared both mcux_config.h files. Both nearly the same config but FreeRtos example not works? Waiting your helps..

[EdwinHz]

Hi @burhanhagi,

I've tested the lvgl_demo_widgets_cm7 example code from the SDK v25.06.00 on the RT1160-EVK board and was able to replicate the issue. Although the application seems to be running properly when debugging, the screen doesn't show anything and remains black.

I will report this issue with the SDK team so they can provide a fix on a future release of the SDK. I will come back if they provide me with a workaround or fix for this version of the example code.

BR,
Edwin.

[burhanhagi]

Hi @EdwinHz, 

Also below lv_demo_benchmark_cm7 example runs uncorrectly and get stucked somewhere in program run order and does not progress anymore from there.  The shapes appearing during screen transitions are different from the same example with LVGL v8.3.10 in SDK 2.16.000. This benchmark LVGL v9.2.1 example in SDK 25.06 does not draw screens truly. Please try running the RTOS examples in both SDKs and will understand what I mean.

These examples are actually the ones which best gives me an idea about how LVGL v9 performance improvement with VGLite enabled. However, all animation widgets examples could not run as expected. Most of them include bugs or errors.