Mikroelektronika MIKROE-742 데이터 시트

255

- SOFTWARE AND HARDWARE SOLUTIONS FOR EMBEDDED WORLD

CHAPTER 6

procedure Lcd_Init()

Nothing.

Initializes Lcd module.

Global variables:

- 

LCD_D7

: Data bit 7 

- 

LCD_D6

: Data bit 6 

-

LCD_D5

: Data bit 5 

- 

LCD_D4

: Data bit 4 

- 

LCD_RS

: Register Select (data/instruction) signal pin 

-

LCD_EN

: Enable signal pin 

- 

LCD_D7_Direction

: Direction of the Data 7 pin 

- 

LCD_D6_Direction

: Direction of the Data 6 pin 

- 

LCD_D5_Direction

: Direction of the Data 5 pin 

- 

LCD_D4_Direction

: Direction of the Data 4 pin 

- 

LCD_RS_Direction

: Direction of the Register Select pin 

- 

LCD_EN_Direction

: Direction of the Enable signal pin 

must be defined before using this function.

// Lcd module connections
var LCD_RS : sbit at PORTD.B2;
var LCD_EN : sbit at PORTD.B3;
var LCD_D4 : sbit at PORTD.B4;
var LCD_D5 : sbit at PORTD.B5;
var LCD_D6 : sbit at PORTD.B6;
var LCD_D7 : sbit at PORTD.B7;

var LCD_RS_Direction : sbit at DDRD.B2;
var LCD_EN_Direction : sbit at DDRD.B3;
var LCD_D4_Direction : sbit at DDRD.B4;
var LCD_D5_Direction : sbit at DDRD.B5;
var LCD_D6_Direction : sbit at DDRD.B6;
var LCD_D7_Direction : sbit at DDRD.B7;
// End Lcd module connections

...

Lcd_Init();