Native C implementation for the ILI934X series of LCD drivers. This driver is designed to implement all functionality of the ILI934X display driver for use with AVR based projects. The driver is still a WIP and not all features are completed. The driver provides a set of simple functions for draweing various types of objects to the screen that can be used in conjunction with my AVR Graphics 2D Library to build more complex shapes.
I have tried to implement the library in a lightweight fashion and the footprint of the library alone is extremely small.
More documentation will be added as the library develops.
Documentation is now provided via the automatically generated doxygen site, as well as by the doxygen generated LaTeX manual. The site is available on the gh-pages site for this repository or by downloading the gh-pages branch. The LaTeX version of this documentation is currently only available by downloading and compiling yourself from the latex branch. I hope to have this automatically made and published with continuous integration and to publish it with a packaged version of the library at incremental stages.
This library is designed for use with AVR that support extended memory interface with 10 bit addressing connected to the ILI934X driver via an 8 bit parrallel data bus. This is not planned to be customisable in the forseable future but may be part of the long term roadmap to implement SPI and 16/18bit bus support.
To configure, you will need to have a file names ili934x_conf.h in your build path. A sample of this is provided as ili934x_conf.sample.h. Configuration is made by defining macros for settings that will enable or disable features.
The configuration options currently include:
- ILI934X_BLC_PIN - The backlight pin used for the LCD Driver, currently assumed to be on
PORTB - ILI934X_RESET_PIN - The reset pin used for the LCD Driver, currently assumed to be on
PORTC - ILI934X_CMD_ADDR - The address to write 8 bit commands to that will be sent to the LCD Driver via the extended memory interface
- ILI934X_DATA_ADDR - The address to write data (command parameters) to that will be sent to the LCD Driver via the extended memory interface
This driver is designed to be expanded with the use of additional libraries to provide the functionality you need. Libraries which I have created for use with this driver include:
- AVR LCD Text Library - A library to provide text output to the display in a variety of fonts and styles
- AVR LCD Graphics 2D Library - A library to aid with the drawing of 2D graphics in an efficient manner
- AVR LCD Graphing Library - A library to plot various types of graphs
All the libraries are designed to be used as widgets to provide compatability between each other.
- ILI934X SSL (Software Scrolling Library) - A library to aid with software scrolling of regions of the screen
- ILI934X ABC (Automatic Backlight Control) - Library to provide automatic backlight adjustment using an LDR light sensor
- ILI934X ARC (Accelerometer Rotation Control) - Library to provide automatic rotation of display using an accelerometer
- AVR LCD UI Library - A library to provide UI componants to build graphical user interfaces
- AVR LCD Animation Library - A library to aid with having multiple animated components on the display
- AVR LCD Asset Library - A library of 2D static and animated graphics and glyphs for use in applications
- AVR LCD Graphics 3D Library - A library to aid with the drawing of 3D graphics in an efficient manner
- AVR LCD Graphics Image Library - A library to aid with the drawing of bitmap, gif, png and jpeg graphics in an efficient manner
Example projects that use this library will be added soon.
Features currently in development include:
- Constants for every constant defined in the datasheet
- GRAM read functionality
- Hardware scrolling