#define LCD_DB0   PIN_D0
#define LCD_DB1   PIN_D1
#define LCD_DB2   PIN_D2
#define LCD_DB3   PIN_D3
#define LCD_DB4   PIN_D4
#define LCD_DB5   PIN_D5
#define LCD_DB6   PIN_D6
#define LCD_DB7   PIN_D7

#define LCD_E     PIN_E2
#define LCD_RS    PIN_E0
#define LCD_RW    PIN_E1

// Send a byte to the LCD.
void lcd_send_byte(int8 address, int8 n)
{
output_low(LCD_E);
if(address==1)
   output_high(LCD_RS);
else
   output_low(LCD_RS);   
delay_ms(500);
output_bit(LCD_DB0, !!(n & 1));
output_bit(LCD_DB1, !!(n & 2));
output_bit(LCD_DB2, !!(n & 4));   
output_bit(LCD_DB3, !!(n & 8));
output_bit(LCD_DB4, !!(n & 16));
output_bit(LCD_DB5, !!(n & 32));
output_bit(LCD_DB6, !!(n & 64));   
output_bit(LCD_DB7, !!(n & 128));
delay_ms(500);
output_high(LCD_E);
delay_ms(50);
output_low(LCD_E);
delay_ms(50);
}

//LCD initialization
void lcd_init(void)
{
output_low(LCD_RW);
delay_ms(500);
lcd_send_byte(0,0x3C);
delay_ms(500);
lcd_send_byte(0,0xF);
delay_ms(500);
lcd_send_byte(0,0x1);
delay_ms(500);
lcd_send_byte(0,0x7);
delay_ms(500);
}