Mikroelektronika MIKROE-742 데이터 시트

236

- SOFTWARE AND HARDWARE SOLUTIONS FOR EMBEDDED WORLD

CHAPTER 6

procedure Glcd_Init();

Nothing.

Initializes the Glcd module. Each of the control lines is both port and pin config-
urable, while data lines must be on a single port (pins <0:7>).

Global variables : 

- 

GLCD_CS1

: Chip select 1 signal pin 

- 

GLCD_CS2

: Chip select 2 signal pin 

- 

GLCD_RS

: Register select signal pin 

- 

GLCD_RW

: Read/Write Signal pin 

- 

GLCD_EN

: Enable signal pin 

- 

GLCD_RST

: Reset signal pin 

- 

GLCD_DataPort

: Data port 

- 

GLCD_CS1_Direction

: Direction of the Chip select 1 pin 

- 

GLCD_CS2_Direction

: Direction of the Chip select 2 pin 

- 

GLCD_RS_Direction

: Direction of the Register select signal pin 

- 

GLCD_RW_Direction

: Direction of the Read/Write signal pin 

- 

GLCD_EN_Direction

: Direction of the Enable signal pin 

- 

GLCD_RST_Direction

: Direction of the Reset signal pin 

- 

GLCD_DataPort_Direction

: Direction of the Data port 

must be defined before using this function.

// Glcd module connections
var GLCD_DataPort : byte at PORTC;

GLCD_DataPort_Direction : 

byte at DDRC;

var GLCD_CS1 : sbit at PORTD.B2;

GLCD_CS2 : 

sbit at PORTD.B3;

GLCD_RS  : 

sbit at PORTD.B4;

GLCD_RW  : 

sbit at PORTD.B5;

GLCD_EN  : 

sbit at PORTD.B6;

GLCD_RST : 

sbit at PORTD.B7;

var GLCD_CS1_Direction : sbit at DDRD.B2;

GLCD_CS2_Direction : 

sbit at DDRD.B3;

GLCD_RS_Direction  : 

sbit at DDRD.B4;

GLCD_RW_Direction  : 

sbit at DDRD.B5;

GLCD_EN_Direction  : 

sbit at DDRD.B6;

GLCD_RST_Direction : 

sbit at DDRD.B7;

// End Glcd module connections

...

Glcd_Init();