2022-04-20 12:39 PM
I am new to STM32H7xx, and in the datasheet of these microcontrollers I read:
"...The LCD-TFT display controller provides a 24-bit parallel digital RGB (Red, Green, Blue) and delivers all signals to interface directly to a broad range of LCD and TFT panels up to XGA (1024x768) resolution..."
My question is: What do they mean by "TFT panels up to XGA (1024x768) resolution" ?
Do they mean the controller also has an internal framebuffer ? Or is it just a controller without framebuffer, and I need to provide the framebuffer ?
For 24-bit, XGA (1024x768) resolution, the framebuffer needs to be around 2.4Mbyte.
Thanks.
2022-04-20 12:49 PM
Closer to 19Mbit, 2.25 MByte
For parts without that much internal contiguous RAM, the expectation would be a frame buffer, or buffers, in SDRAM, the goal here being to drive it directly with the STM32 without involving a display with it's own controller/frame-buffer, in which case you'd typically have that hung off the FMC