In the readme I forgot to mention the FreeRTOS field in the component editor, it doesn't do anything at present, it is a place-holder for possibly playing nice with FreeRTOS in the future. There are some delays in the LCD handlers & when I've got serious with FreeRTOS I'll try Yield()ing at those points & letting the system get on with other stuff. Maybe. In the future.
This may be well out of date but I have just finished a rough custom component for the ST7920 in serial mode.
The component has an 8 bit parallel load, 24 bit serial shifter and works at up to 200kHz. Any one wanting further info contact me through this site or look at my Blog site https://electronsandsmoke.wordpress.com/