- [Codevision] 캐릭터 LCD 8비트 제어

- 시뮬레이터 -> 프로테우스 8.1 VSM

- 컴파일러 -> 코드비전 2.05

 

 

"Download" Proteus File - [Proteus] C_LCD_8Bit.zip

"Download" Source Code - [Codevision] C_LCD_8Bit.zip

<Proteus Circuit>

<Source Code>

#include <mega128.h>
#include <delay.h>

#define LCD_RW  PORTB.1
#define LCD_RS  PORTB.0
#define LCD_E   PORTB.2

#define LCD_EN  {PORTB.2 = 0; PORTB.2 = 1;} 
#define DATA    PORTE

void Port_Init(void)
{
    DDRB = 0xFF;
    PORTB = 0x00;
    
    DDRE = 0xFF; 
    PORTB = 0x00;
}

void E_Pulse(void)
{
    LCD_E = 1;
    delay_ms(5);
    LCD_E = 0;
}

void LCD_DATA(unsigned char data)
{
    DATA = data;
    LCD_EN;
}

void Func_set(void)
{
    LCD_RW = 0;
    LCD_RS = 0;
    LCD_DATA(0x38);
    
    E_Pulse();
}

void Init_LCD(void)
{
    LCD_E = 0;
    
    delay_ms(15);
    Func_set();
    
    delay_ms(10);
    Func_set();
    
    delay_us(150);
    Func_set();
                
    LCD_DATA(0x0F);  
    E_Pulse();  
    
    LCD_DATA(0x06);     
    E_Pulse();  
}

void lcd_char(char s)
{
    LCD_RS = 1;
    LCD_DATA(s);
    E_Pulse();
}

void lcd_disp(char x, char y)
{
    LCD_RS = 0;
    LCD_RW = 0;
    
    switch(y)
    {
        case 0 :
            LCD_DATA(x + 0x80);
            break;
            
        case 1 :
            LCD_DATA(x + 0xC0);
            break;
            
        case 2 :
            LCD_DATA(x + 0x80 + 20);
            break;
            
        case 3 :
            LCD_DATA(x + 0xC0 + 20);
            break;    
    }
    E_Pulse();
}

void String_Out(char x, char y, char *str)
{
    unsigned char i = 0;

    lcd_disp(x, y);           
    
    do{
        lcd_char(str[i]);
    } while(str[++i]!='\0'); 
} 

void main(void)
{
    Port_Init();
    Init_LCD();
         
    String_Out(0, 0, "Character LCD");
    String_Out(0, 1, "8 Bit Control");   
    
    while(1)
    {
        ;
    }
}