Example of LVGL on Square Screen

[100ask]

Example of LVGL on Square Screen

Video:

• YouTube: https://youtu.be/ZNKxmB3X2gY
• Bilibili: https://www.bilibili.com/video/BV1Tw4m1k7C3

Example screenshot

[kisvegabor]

It’s unbelievable! I wonder what your motivation is to create such complex UIs.

I’ve noticed that in a lot of cases the FPS drops to ~10, but the CPU usage remains low. Do you a GPU?

Also, what is the resolution of the screen?

And lastly, I’d be happy to share this video. If the boards can be purchased somewhere I can add the link too.

[100ask]

Thank you!

This is the teaching case I prepared for the LVGL course (soon open sourced), which has not yet been launched on overseas sales platforms. This is the sales link within China: https://item.taobao.com/item.htm?id=765173717673

[100ask]

@kisvegabor

I’ve noticed that in a lot of cases the FPS drops to ~10, but the CPU usage remains low. Do you a GPU?

Also, what is the resolution of the screen?

1. Use LV_DISPLAY_RENDER_MODE_PARTIAL + DMA2D (LVGL V9.1.1, not used RTOS, LV_DEF_REFR_PERIOD is 30), GPU not yet used.
2. 480*480 pixel

[kisvegabor]

@100ask

Use LV_DISPLAY_RENDER_MODE_PARTIAL + DMA2D (LVGL V9.1.1, not used RTOS, LV_DEF_REFR_PERIOD is 30), GPU not yet used.

DMA2D is a GPU but it’s not supported in v9.1 yet. (Will be added in a few days)

[100ask]

It’s not clear enough here, GPU2D hasn’t been used yet.

[100ask]

@kisvegabor

(Will be added in a few days)

whoa, that’s amazing!
What about GPU2D(NeoChrom)?

[openvgl]

I also want to know how to use the GPU 2D of the STM32H7R/S, and the official document does not have too much introduction of this aspect, if there is any progress can you share with us?