#define LOW  0
#define HIGH 1

#define LCD_DDR DDRC
#define LCD_OUT PORTC
#define LCD_PIN PINC

#define LCD_DN  2
#define LCD_SCL 3
#define LCD_CE  1

#define set_bit(reg,bit) reg |= (1<<bit)
#define clr_bit(reg,bit) reg &= ~(1<<bit)
#define check_bit(reg,bit) (reg&(1<<bit))

void lcd_setupPins()
{
    set_bit(LCD_DDR, LCD_DN);   // DN output
    set_bit(LCD_DDR, LCD_SCL);  // SCL output
    set_bit(LCD_DDR, LCD_CE);   // CE output
}
/* ------------------------------------------------------------------------- */
void lcd_ce_digitalWrite(unsigned char state)
{
    if(state) { set_bit(LCD_OUT, LCD_CE); }
    else      { clr_bit(LCD_OUT, LCD_CE); }
}