ILI9225 (and OTM2201A) Basic Library for PIC

This is a simple, cut-down library for the ILI9225 (and OTM2201A) LCD controller chips. Tested for use on the PIC18F26K42, however it is designed to be easily ported to other microcontrollers.

• This project uses documentation provided by some random eBay seller. License unknown, credited in code.

Installation

The PIC communicates with this controller over SPI and should be initialised by the main() code outside of the ILI9225.c library (because each PIC is slightly different).

• Set the SPIBUFF, and SPIIDLE registers in the ILI9225.h file to match your particular model PIC.
  
• Change the CSX, CMD, and RESX pins in the ILI9225.h file to match your design.

Usage

This library only provides a few basic functions to get started. After setting up the SPI module, initialise the LCD controller using:

lcd_init();

It is then useful to clear the screen manually with:

fill_rectangle(0, 0, WIDTH, HEIGHT, COLOR_BLACK);

You can set the display driver to draw to the display in either portrait or landscape orientation by changing the LANDSCAPE flag in the header file:

#define LANDSCAPE 1 //1 = Landscape, 0 = Portrait

Feel free to add functions and modify as required. Licensed under GNUv3.