Interfacing KS0108 based JHD12864E Graphics LCD with Atmega32
In this tutorial we will look at interfacing KS0108 display controller based JHD12864E display. There are many displays out there based on KS0108 or compatible display controller. They all work the same way, but make sure to check the datasheet for the pin diagram because the pin layout is not uniform, if you've a display from different manufacturer. We will look at the working of the display, the hardware setup and programming with ATmega32. You may use any other AVR MCU as well. You may port the library for other MCUs as well. We have it tested and working on 8051 PIC and ARM. We may do a similar tutorial on these MCUs as well. Unlike a 16 x 2 display, this does not have a character map for ascii values stored on its ROM. However it allows us the flexibility of creating fonts like Arial, times new roman etc. We could also display bit-map images on it and stretching it little further we can make GUI's and little animation, but that's for another day. So lets get started.
Working of KS0108 Display Controller
Schematic and HW Setup
