sumotoy
Well-known member
After long development process (mainly going around tons of chip bugs) the library for RA8875 it's almost usable:
https://github.com/sumotoy/RA8875
Recently I added support for user fonts that render fast, but library support almost all RA features including internal fonts, ROM fonts, SPI Flash. Of course it works really fast with all Teensy's and it's fully compatible with Audio Board.
Apart the infamous bugs, the RA885 chip it's the only one that let you drive large displays (max 800x480) with touch screen and using very few processor resources.
Actually the only drawback it's send images fast due RA hardware limitations and use a SPI isolator circuit if you want to use other SPI devices.
Here's a pretty exaustive wiki https://github.com/sumotoy/RA8875/wiki
https://github.com/sumotoy/RA8875
Recently I added support for user fonts that render fast, but library support almost all RA features including internal fonts, ROM fonts, SPI Flash. Of course it works really fast with all Teensy's and it's fully compatible with Audio Board.
Apart the infamous bugs, the RA885 chip it's the only one that let you drive large displays (max 800x480) with touch screen and using very few processor resources.
Actually the only drawback it's send images fast due RA hardware limitations and use a SPI isolator circuit if you want to use other SPI devices.
Here's a pretty exaustive wiki https://github.com/sumotoy/RA8875/wiki