yuk7hi / avr-library-hd44780-lcd

This provides an AVR library (header file) for interfacing HD44780, aka 16x2 LCD display with AVR programmable microcontrollers.

AVR-library-HD44780-LCD

This provides an AVR library (header file) for interfacing HD44780, aka 16x2 LCD display with Atmel ATmega32 microcontrollers.

Functions defined (explained):

Functions to be used by the user

cursorPosLCD(int add, int N)

Move the cursor to the required address.
1-line mode, 80 positions
2-line mode, 40 positions in each line
add - address value

Functions to be used only by the header file

enableLCD(int i)

Enables the data bus to read/write data through.

shortEnLCD()

Enables the data bus for a short period to
read/write data.

checkBFLCD()

Checks the Busy Flag. (whether and internal 
operation is running)
BF - Busy Flag
	1 -> an internal excution is taking place
	0 -> system is ready to accept/send data

instructLCD(int vRS, int vRW)

Alter the command bit values of the system.
RS - Register Selection
	1 -> select Data Register (DR) for sending/
		 receiving data. (via D0-D7)
	0 -> select Instruction Register (IR) for
		 sending/recieving commands. (via D0-D7)
R/W - Read/Write mode selection
	1 -> function data bus as to Read data from
		 the system.
	0 -> function data bus as to Write data to
		 the system.

dataBusRWLCD(int i)

Define pins connected to the LCD as input/output
D0-D7
	 1 -> pins defined as inputs.
	 0 -> pins defined as outputs.