I am trying to learn and understand the COSA Library using a 12864ZW (ST7920) 128X64 LCD Display. Right now I am able to use the LCD using the u8glib but also found that COSA has a library for the ST7920 Display, I originally used this tutorial to get things working.
The main problem that I have now is in the ST7920 Documentation there is a schematic that shows how to hook up a ST7920 Compatible LCD. The first tutorial only uses 3 lines from the Mega and the Cosa is using what looks like 6 lines.
Looking at the header file, it looks like it is derived from the HD44780 Class and what I can gather is pins 16 and 4 are hard coded for something? I am not quite clear on how to use the Cosa version of the library. Can someone please give me a explanation and perhaps a explanation on how to get this working using Cosa?