void LcdWaitBusy(void)
{
  	LCD_DI = 0;       	// Instruction mode 
  	LCD_RW = 1;       	// Read mode 

	LCD_DATA = 0xFF;

	do {
	sleep(2); 
	LCD_E=1; 
	sleep(2); 
	LCD_E=0; 
	} while(LCD_DATA & DISPLAY_STATUS_BUSY); 

	return;
}