Interfacing a character LCD to an ADuC702x – ARM7TDMI microcontroller (New application note).
Analog Devices released new application note with a detailed description of interfacing the HD44780-Based Character LCD to an ADuC702x devices. This application note describes the commands to control the basic functions of the LCD.
The data bus that connects the HD44780 to the MicroConveter® can be 8 or 4 bits wide; in this application note, only the case of an 8-bit data bus is examined. In addition to the data bus, three control lines are required; thus, a total of 11 pins are required to interface the LCD to the MicroConverter.
In the app note basic functions are explained:
- CONFIGURING THE LCD SCREEN
- CLEARING THE LCD SCREEN
- SETTING THE ENTRY MODE
- WRITING TEXT TO THE LCD SCREEN
Full application note and related source code is available at Analog Devices website.