DMA2D for A4 Color mode

[Marco.D]

Hi, I am developing code for a display on the STM32746G-Discovery.

Is it possible to display fonts without blending? (Not to have to erase the background beforehand)

If I use the DMA2D with memory to memory with blending, everything works as expected, However if I just use the Memory to Memory with PFC I am getting a filled rectangle.

It is like I can't pass information about the background colour; I understand the background fifo is not activated. Is it not possible because of that?

Thanks

[Despair1337]

Do you have combine alpha and input alpha set to your color?

[Marco.D]

Hi MKraus,

at th ened I gave up, I am erasing the whole screen and then drawing again everything.

I have an RGB565 layer, so there is no alpha channel there.

Thanks