I'm using touchgfx 4.22 on a stm32h755zi mcu. The touchgfx run on the M7 core. The mcu is running at 480MHz.
The board is an internal board with a 800x480 display connected in parallel to the LTDC interface with a 18bit bus as shown below:
I use an rgb565 buffer in an external psram. Touchgfx settings are as follow:
And here the dma2d settings:
I've made a simple screen where there is a fade of a box of 800x480 pixel (all the screen) from gray color to transparent but this fade is very slow. With or without DMA, the result is the same.
Here a video of the fade: https://www.youtube.com/watch?v=OfER5-DQu4M
sorry for the poor video quality; however the screen starts in grey color and after 1 second the box in grey color disappears and another screen is shown. All of this with a fade effect.
And here it is how I made the fade; it's a simple interaction:
As far as I understand the fade duration should be 1s but it is 7-8 seconds. A part the wrong duration, the fade is quite sloppy with or without dma.
What am I doing wrong?
This is my clock configuration:
And this is my RCC settings:
On my board I use this crystal: https://www.ndk.com/images/products/catalog/c_NX2016SA_e.pdf and it is the 25MHz model.
How can I check if the pll is working properly?
