void main (void)
{

..........
........ Hier wird ein tastenbedienfeld aus einer bmp - hex geladen. 
........ Und wenn ich über mein touch - panel eine taste betätige
........ soll diese für die Zeit wo gedrückt wird invertiert werden.
..........

	set_addr_ptr(0x0000);

	LCD_CMD = 0b10110001;				//Set DATA Auto Read
	lcd_send_cmd();

	read_data = lcd_get_data_auto();

	lcd_status_read_loop(0x03);			//check STA0 + 1
	LCD_CMD = 0b10110010;				//Reset Auto mode
	lcd_send_cmd();

	lcd_status_read_loop(0x03);			//check STA0 + 1



...........
........  später wird der Inhalt von read_data an Addr. 0x0000 ausgegeben.
........  Es wird aber immer der wert 0x00 angezeigt
...........

}



//	#####################################################################################
//	#																					#
//	#	get 1byte in automode															#
//	#	it's necassary to use the statusmask 0x04 - it's the only difference to the 	
//	#	"unsigned char lcd_get_data(void)" function, tested 23.12.2006 							
//	#																					#
//	#####################################################################################
unsigned char lcd_get_data_auto(void)
{
	lcd_status_read_loop(0x04);			//Check for automode data read capability

	unsigned char temp_var = 0x00;
	DATA_DIR_IN();					//DATA_PORT is input
	LCD_DATA = 0x00;				//guaranty that the pull-ups are turned off

	LCD_WR_H();					//guaranty that ~WR is high
	LCD_CD_L();					//set C~D low (data enable)
	LCD_RD_L();					//set ~RD low
	LCD_CE_L();					//set ~CS low
	asm volatile ("nop"::);				//timingstuff

	temp_var = LCD_READ;				//data from dataport to temp_var

	LCD_CE_H();					//set ~CS to high
	LCD_RD_H();					//set ~WR to high
	asm volatile ("nop"::);				//timingstuff
	LCD_CD_H();					//set C~D high

	return temp_var;
}






//	#####################################################################################
//	#																					#
//	#	status read, rotate if the status doesn't compare to the mask, tested 23.12.2006	
//	#																					#
//	#####################################################################################
void lcd_status_read_loop(unsigned char status_mask)
{
	unsigned char temp_var = 0x00;				//latch for statusword

	LCD_WRITE = 0x00;													//guaranty that pullups are low
	DATA_DIR_IN();						//portb is input - it looks for status word from display

	LCD_CTRL |= ( (1 << LCD_CD) | (1 << LCD_WR) );		//guaranty that C~D and ~WR are high
	
	asm volatile ("nop"::);					//not necassary
	
	do																//one run is minimum
	{
		LCD_CTRL &= ~(1 << LCD_RD);			//read enable
		LCD_CTRL &= ~(1 << LCD_CE);			//trigger status output

		asm volatile ("nop"::);				//timingstuff
		temp_var = LCD_READ;				//statusword to the 'latch'
		asm volatile ("nop"::);				//timingstuff		

		LCD_CTRL |=  (1 << LCD_CE);			//set ~CS high
		LCD_CTRL |=  (1 << LCD_RD);			//disable ~RD
	
	}while((temp_var & status_mask) != status_mask);

	DATA_DIR_OUT();						//dataport is output
}