#include <xc.h>
#define _XTAL_FREQ 4000000 // Define the crystal frequency for delay
 
// LCD control pins
#define RS RD0  
#define EN RD1  
 
// LCD data pins
#define D4 RD2
#define D5 RD3
#define D6 RD4
#define D7 RD5
 
// Function prototypes
void LCD_Command(unsigned char);
void LCD_Char(unsigned char);
void LCD_Init(void);
void LCD_String(const char*);
 
void main() {
    TRISD = 0x00; // PORTD as output
    LCD_Init();   // Initialize the LCD
 
    const char name[] = "VEER"; // Name to display
 
    for (int i = 0; name[i] != '\0'; i++) {
        LCD_Char(name[i]); // Display each character with a for loop
        __delay_ms(300);   // Delay for visual effect
    }
 
    while (1); // Infinite loop
}
 
void LCD_Command(unsigned char cmd) {
    RS = 0; // Command mode
    D4 = (cmd >> 4) & 0x01;
    D5 = (cmd >> 5) & 0x01;
    D6 = (cmd >> 6) & 0x01;
    D7 = (cmd >> 7) & 0x01;
    EN = 1;
    __delay_ms(2);
    EN = 0;
 
    D4 = cmd & 0x01;
    D5 = (cmd >> 1) & 0x01;
    D6 = (cmd >> 2) & 0x01;
    D7 = (cmd >> 3) & 0x01;
    EN = 1;
    __delay_ms(2);
    EN = 0;
}
 
void LCD_Char(unsigned char data) {
    RS = 1; // Data mode
    D4 = (data >> 4) & 0x01;
    D5 = (data >> 5) & 0x01;
    D6 = (data >> 6) & 0x01;
    D7 = (data >> 7) & 0x01;
    EN = 1;
    __delay_ms(2);
    EN = 0;
 
    D4 = data & 0x01;
    D5 = (data >> 1) & 0x01;
    D6 = (data >> 2) & 0x01;
    D7 = (data >> 3) & 0x01;
    EN = 1;
    __delay_ms(2);
    EN = 0;
}
 
void LCD_Init(void) {
    LCD_Command(0x02); // 4-bit mode initialization
    LCD_Command(0x28); // 2 lines, 5x7 matrix
    LCD_Command(0x0C); // Display ON, Cursor OFF
    LCD_Command(0x06); // Auto-increment cursor
    LCD_Command(0x01); // Clear display
}
 

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