How does TouchGFX write image to SDRAM?

[NHo.1]

Hi ST,

I am doing a project:

• Use TouchGFX to generate image, link to SDRAM, MCU will get and show on LTDC (MIPI-DSI Interface). I don't know how does TouchGFX link to SDRAM.
• How to build project touchGFX (MIPI-DSI interface)?

Thank you.

[Martin KJELDSEN · Accepted solution]

Hi,

This is a very broad question. For your second point: Check out the DSI application templates from TouchGFX designer. The TouchGFX Generator in CubeMX only supports LTDC and custom display interface (LTDC = you get the driver for free, custom = you have to write it yourself).

For the first point: Not entirely sure what you mean here. But generally, a screen is rendered to the framebuffer (maybe SDRAM), and transferred to the display from here.

/Martin