Svenska ElektronikForumet

Kod: Markera allt

oid senddata(uint8_t data){
	while(((getstatus() & 0x3)) != 0x3);
	// Dataport output
	DATADDR = 0xff;
	CTRPORT = _BV(WR)|_BV(RD)|_BV(CE)|_BV(RST);
	delay(100);
	DATAPORT = data;
	delay(100);
	CTRPORT &= ~(_BV(CE)|_BV(WR));
	delay(100);
	CTRPORT |= (_BV(CE)|_BV(WR));
}

void sendcommand(uint8_t command){
	while(((getstatus() & 0x3)) != 0x3);
	// Dataport output
	DATADDR = 0xff;
	CTRPORT = _BV(WR)|_BV(RD)|_BV(CE)|_BV(RST)|_BV(CD);
	delay(100);
	DATAPORT = command;
	delay(100);
	CTRPORT &= ~(_BV(CE)|_BV(WR));
	delay(100);
	CTRPORT |= (_BV(CE)|_BV(WR));
	
}

Kod: Markera allt

void lcd_init(){
	
	DATADDR = 0;				                                                        		//set pins Input
	DATAPORT = 0;
	CTRDDR = _BV(WR)|_BV(RD)|_BV(CE)|_BV(CD)|_BV(RST);	     // Set control pins to output
	CTRPORT = _BV(WR)|_BV(RD)|_BV(CE)|_BV(CD)|_BV(RST); 	   //all hitgh
	
	// Puls reset
	CTRPORT &= ~_BV(RST);				                                        	// pull reset low
	delay_ms(100);						                                        	// wait
	CTRPORT |= _BV(RST);				                                        		// set reset high
	delay_ms(10);						                                        	// wait

	sendcommand(0x81); 				                                        		//send or mode
	senddata(0x00);						                                        	//
	senddata(0x00);					                                        		//
	sendcommand(0x42); 				                                        		//send 0x0000 as graphics home
	senddata(0x1E);					                                        		//
	senddata(0x00);						                                        	//
	sendcommand(0x43); 					                                        	//send 0x001E as graphics area
	sendcommand(0x98);			                                        			//Send graphic on 

}
uint8_t getstatus(){
	static uint8_t tmp;
	DATADDR = 0;					                                        		//Dataport to input
	CTRPORT = (_BV(WR)|_BV(CD)|_BV(RST)|_BV(CE));		// Set WR, CD,Rst and CE high. RW low
	delay(500);						                                        	// Wait a while
	CTRPORT &= ~(_BV(CE));			                                        			// set Ce low
	delay(5000);						                                        	// wait a while
	tmp = DATAPIN;						                                        	// Read dataport
	CTRPORT |= (_BV(CE));			                                        			// CE high
	return tmp;							                                        // return value
}

void senddata(uint8_t data){
	while(((getstatus() & 0x3)) != 0x3);	// check status
	DATADDR = 0xff;				// set dataport to output
	DATAPORT = data;			// Set data on port
	CTRPORT = _BV(RD)|_BV(CE)|_BV(RST);	// set RD, CE and RST high, CD and WR low
	delay(100);				// Wait a while
	CTRPORT &= ~(_BV(CE));			// set CE low
	delay(100);				// wait a while
	CTRPORT |= _BV(CE);			// set ce high
	DATADDR = 0x00;				// reset dataport to input
}

void sendcommand(uint8_t command){
	while(((getstatus() & 0x3)) != 0x3);	// Check status
	DATADDR = 0xff;				// Dataport output
	DATAPORT = command;			// set data on port
	CTRPORT = _BV(RD)|_BV(CE)|_BV(RST)|_BV(CD); // set RD, CE , CD and RST high, WR low
	delay(100);				// Wait a while
	CTRPORT &= ~(_BV(CE));			// set CE low
	delay(100);				// wait a while
	CTRPORT |= (_BV(CE));			// set CE high
	DATADDR = 0x00;				// Reset dataport to input
}