Touchgfx

[DDom.1]

Hallo. I use stm32h747 with touchgfx and mipi dsi display 454х454 pixels. Works well, but swipe screens with delay about 1-2 Sec. witch way make it faster ? Dim

[Romain DIELEMAN]

Hi,

Is it a delay of touch response (and do you face it when using buttons for example) or is it the swipe movement that is "laggy" ? Are you using the single framebuffer or double framebuffer strategy ? The later would increase your performances. Is the screens you are swiping full of images/content ? A way to increase the speed would be to fade the images out, so turning them invisible, before going from a screen to another.

/Romain

[DDom.1]

Hallo. Use one buffer in STM32 RAM with mipi dsi ( display 454x454 16bit ) DSI host in RGB565 mode 60MHz DSI clock. no optoinal pictures, menu by standart tgfx vidgets ( text, buttons ) . buttons works fast in real time. But in screens swipe moments lags behind the finger about 0.5 Sec . Try change M7 clock 200-480 Mhz, result same

BR