Mikroelektronika MIKROE-742 데이터 시트

The mikroPascal PRO for AVR provides a library for communication with Lcds (with
HD44780 compliant controllers) through the 4-bit interface. An example of Lcd connec-
tions is given on the schematic at the bottom of this page.

For creating a set of custom Lcd characters use Lcd Custom Character Tool.

- Lcd_Init 
- Lcd_Out 
- Lcd_Out_Cp 
- Lcd_Chr 
- Lcd_Chr_Cp 
- Lcd_Cmd 

254

- SOFTWARE AND HARDWARE SOLUTIONS FOR EMBEDDED WORLD

CHAPTER 6

var LCD_RS : sbit; sfr;
external;

Register Select line.

var LCD_RS : sbit at
PORTD.B2;

var LCD_EN : sbit; sfr;
external;

Enable line.

var LCD_EN : sbit at
PORTD.B3;

var LCD_D7 : sbit; sfr;
external;

Data 7 line.

var LCD_D7 : sbit at
PORTD.B4;

var LCD_D6 : sbit; sfr;
external;

Data 6 line.

var LCD_D6 : sbit at
PORTD.B5;

var LCD_D5 : sbit; sfr;
external;

Data 5 line.

var LCD_D5 : sbit at
PORTD.B6;

var LCD_D4 : sbit; sfr;
external;

Data 4 line.

var LCD_D4 : sbit at
PORTD.B7;

var LCD_RS_Direction :
sbit; sfr; external;

Register Select direction pin.

var LCD_RS_Direction :
sbit at DDRD.B2;

var LCD_EN_Direction :
sbit; sfr; external;

Enable direction pin.

var LCD_EN_Direction :
sbit at DDRD.B3;

var LCD_D7_Direction :
sbit; sfr; external;

Data 7 direction pin.

var LCD_D7_Direction :
sbit at DDRD.B4;

var LCD_D6_Direction :
sbit; sfr; external;

Data 6 direction pin.

var LCD_D6_Direction :
sbit at DDRD.B5;

var LCD_D5_Direction :
sbit; sfr; external;

Data 5 direction pin.

var LCD_D5_Direction :
sbit at DDRD.B6;

var LCD_D4_Direction :
sbit; sfr; external;

Data 4 direction pin.

var LCD_D4_Direction :
sbit at DDRD.B7;