2021-11-26 06:38 AM
Hello, everyone!
I'm developing smartwatch as a project and I'm planning to use a TFT display which has 18RGB interface. I have STM32L476 at my disposal that doesn't have any embedded LTDC module.
Should I change MCU to one that does have LTDC in order to receive/transfer data or I can use some external buffer between MCU and display?
2021-11-26 08:28 AM
STM32L4R5, STM32L4R7 or STM32L4R9 might be a better choice because they already contain the graphics controller and plenty of memory that you can use as a frame buffer.
The STM32L4R7 and STM32L4R9 even contain the Chrom-GRC (GFXMMU), with which you can save RAM on round displays that would otherwise be used for the corners that do not exist.
Regards
/Peter
2021-11-26 08:31 AM
Maybe you need define more your LcD, but when realy you plan use RGB18 , then yes this mcu isnt for you.
But 476 have FMC for LCD or SPI.