How to use the unmapped storage format？

[SLuo.2]

The result is like the last picture, what should I do?

[Romain DIELEMAN]

Hi,

Here is an article to understand how to use unmapped storage for images and fonts. You will need to use the additional features of the TouchGFX Generator (initialized in the TouchGFX configuration in STM32CubeMX).

Could you explain a bit more what you meant by "The result is like the last picture, what should I do?" ?

/Romain

[SLuo.2]

Thank you!

I uploaded several pictures when I asked, but they are missing

[SLuo.2]

Thank you!

I uploaded several pictures when I asked, but they are missing

[SLuo.2]

I don't seem to have a 'FlashDataReader' generator

[Romain DIELEMAN]

Hi,

I think you need to set the display interface to "Custom" if it is not already the case (not sure why). What MCU are you working with ?

/Romain

[SLuo.2]

Hi,Romain

Is STM32H750XB.

Can I use "LTDC+DMA2D" and unmapped storage formats at the same time

[SLuo.2]

If so, are there any examples?

Thanks.​

[Romain DIELEMAN]

You can actually. I misunderstood how the FlashDataReader option works in STM32CubeMX, it only works when the Framebuffer pixel format is RGB565 (which is initially set when setting the display interface to "Custom". So you can select the display interface "LTDC" and use the FlashDataReader option as long as you are in RGB565.

We do not have an example with both unmapped storage and LTDC+DMA2D unfortunately. The only example we have is for unmapped storage is on the STM32G0nucleo with a SPI display.

/Romain