1-8tft_16-bit.txt

Program for writing to Newhaven Display 1.8" TFT

//---------------------------------------------------------
/*
TFT.c
Program for writing to Newhaven Display 1.8" TFT

(c)2008 Curt Lagerstam - Newhaven Display International, LLC. 

 	This program is free software; you can redistribute it and/or modify
	it under the terms of the GNU General Public License as published by
	the Free Software Foundation; either version 2 of the License, or
	(at your option) any later version.

	This program is distributed in the hope that it will be useful,
	but WITHOUT ANY WARRANTY; without even the implied warranty of
	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
	GNU General Public License for more details.
*/
//---------------------------------------------------------
#include <at89x51.h>
#include "picture.h"

/**************** I/O Setting **********************/
/*
[DB7..DB0] = [P0_7..P0_0]
[DB15..DB8] = [P1_7..P1_0]
/CS		= P3_4
RS		= P3_5
/WR		= P3_6
/RD		= P3_7
/RESET	= P3_0
*/

#define CS P3_0
#define RS P3_4
#define WR P3_5
#define RD P3_6
#define RESET P3_7

/***************************************************/

void data_out(unsigned char i,unsigned char j) //Data Output 16-bit Bus Interface
{
	RS  = 1;
	RD  = 1;
	WR  = 0;
	P1  = i;
	P0  = j;
	WR  = 1;
}
void comm_out(unsigned char j) //Command Output 8-bit Bus Interface
{
	RS  = 0;
	RD  = 1;
	WR  = 0;
	P1  = 0;
	P0  = j;
	WR  = 1;
}
void data_put(unsigned char i,unsigned char j) //just put the data on the bus
{
	CS  = 0;
	RS  = 1;
	RD  = 1;
	P1  = i;
	P0  = j;

}
/****************************************************/
void delay(unsigned int n)
{
	unsigned int i,j;
	for (i=0;i<n;i++)
  		for (j=0;j<350;j++)
  			{;}
}
void delay1(unsigned int i)
{
	while(i--);
}
/****************************************************/
void dispPic(unsigned char *lcd_string)
{
	int i,j;
	CS = 0;
	RS = 1;
	for(i=0;i<160;i++)
   		{
     		for(j=0;j<128;j++)
      			{
						P1 = *lcd_string;
						P0 = *(++lcd_string);
						WR = 0;
						lcd_string++;
						WR = 1;
    		 	}
   		}
	
}
void Fulldisplay(unsigned char d1,unsigned char d2)
{
	int i,j;
	comm_out(0x44); data_out(0x80,0x00);
	comm_out(0x45); data_out(0xA0,0x00);
	comm_out(0x21); data_out(0x00,0x80);
	comm_out(0x22);
    data_put(d1,d2);
    for(i=0;i<160;i++)
    {
       for(j=0;j<128;j++)
          {
           	  	WR = 0;
				WR = 1;
          }
    }
}


/****************************************************
*           Initialization For S6D0144               *
*****************************************************/
void resetLCD()
{
	RESET = 0;
	delay(100);
	RESET = 1;
	delay(100);
}
void init_LCD() 
{
	CS = 0;
comm_out(0x00); data_out(0x00,0x01);
delay(300);
comm_out(0xB4); data_out(0x00,0x00);
comm_out(0xB3); data_out(0x00,0x00);
comm_out(0x07); data_out(0x00,0x00);
comm_out(0x12); data_out(0x00,0xB3);
comm_out(0x13); data_out(0x08,0x08);
comm_out(0x14); data_out(0x7D,0xE5);
comm_out(0x10); data_out(0x1A,0x6C);
delay(900);
comm_out(0x13); data_out(0x08,0x1E);
delay(300);
comm_out(0x01); data_out(0x01,0x14);
comm_out(0x02); data_out(0x01,0x00);
comm_out(0x03); data_out(0x00,0x20);
comm_out(0x08); data_out(0x02,0x02);
comm_out(0x0B); data_out(0x00,0x04);
comm_out(0x0C); data_out(0x00,0x01);
comm_out(0x30); data_out(0x03,0x03);
comm_out(0x31); data_out(0x03,0x03);
comm_out(0x32); data_out(0x03,0x03);
comm_out(0x33); data_out(0x00,0x00);
comm_out(0x34); data_out(0x04,0x04);
comm_out(0x35); data_out(0x04,0x04);
comm_out(0x36); data_out(0x04,0x04);
comm_out(0x37); data_out(0x00,0x00);
comm_out(0x38); data_out(0x07,0x07);
comm_out(0x40); data_out(0x00,0x00);
comm_out(0x42); data_out(0x9F,0x00);
comm_out(0x43); data_out(0x00,0x00);
comm_out(0x44); data_out(0x7F,0x00);
comm_out(0x45); data_out(0x9F,0x00);
comm_out(0x61); data_out(0x00,0x18);
comm_out(0x69); data_out(0x00,0x00);
comm_out(0x70); data_out(0x00,0x00);
comm_out(0x71); data_out(0x00,0x00);
delay(500);
comm_out(0x07); data_out(0x00,0x05);
comm_out(0x07); data_out(0x00,0x21);
comm_out(0x07); data_out(0x00,0x23);
delay(500);
comm_out(0x07); data_out(0x00,0x37);
comm_out(0x21); data_out(0x00,0x7F);
comm_out(0x22); data_out(0x00,0x00);
}
/***************************************************
*                   Main Program                  *
***************************************************/

void main(void)
{
    P0 = 0;
	P1 = 0;
	P2 = 0;
	resetLCD();
	
	while(1)
	{
	init_LCD();
	Fulldisplay(0xF8,0x00);
	delay(500);
	Fulldisplay(0x07,0xE0);
	delay(500);
	Fulldisplay(0x00,0x1F);
	delay(500);
	Fulldisplay(0xFF,0xFF);
	delay(500);
	Fulldisplay(0x00,0x00);
	delay(500);
	dispPic(picture);
	delay(500);
	}
}