Ejemplo n.º 1
0
/** Send data to LCD 8 or 4 bits */
void lcd_send(u8 value, u8 mode)
{
	digitalwrite(_rs_pin, mode);
  
	if (_displayfunction & LCD_8BITMODE)
	{
		lcd_write8bits(value); 
	}
	else
	{
		lcd_write4bits(value >> 4);	// Upper 4 bits first
		lcd_write4bits(value);	    // Lower 4 bits second
	}
}
Ejemplo n.º 2
0
// write either command or data, with automatic 4/8-bit selection
void lcd_send(uint8_t value, uint8_t mode) 
{
  digitalWrite(_rs_pin, mode);

  // if there is a RW pin indicated, set it low to Write
  if (_rw_pin != 255) { 
    digitalWrite(_rw_pin, LOW);
  }
  
  if (_displayfunction & LCD_8BITMODE) {
    lcd_write8bits(value); 
  } else {
    lcd_write4bits(value>>4);
    lcd_write4bits(value & 0x0F);
  }
}