/*****************************************************/
/*
NHD-C12832A1Z-NSW-FBW-3V3.c
Program for writing to Newhaven Display COG LCD

(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 <REG52.H>
#include "picture.h"
/*****************************************************/
sbit RES = P3^4;
sbit CS  = P3^1;
sbit A0  = P3^7;
sbit SCL = P3^0;
sbit SI  = P1^7;
/*****************************************************/
void delay(unsigned int n)
{
	unsigned int i,j;
	for (i=0;i<n;i++)
  		for (j=0;j<350;j++)
  			{;}
}
/*****************************************************/
void data_out(unsigned char i) //Data Output Serial Interface
{
	unsigned int n;
	CS = 0;
	A0 = 1;
	for(n=0; n<8; n++){
    SCL = 0;
	P1  = i;
	delay(2);
	SCL = 1;
	i <<=1;
	}
	CS = 1;
}
void comm_out(unsigned char j) //Command Output Serial Interface
{
	unsigned int n;
	CS = 0;
	A0  = 0;
	for(n=0; n<8; n++){
    SCL = 0;
	P1  = j;
	delay(2);
	SCL = 1;
	j <<=1;
	}
	CS = 1;
}
/*****************************************************/
void dispPic(unsigned char *lcd_string)
{
	unsigned int i,j;
	unsigned char page = 0xB0;
	comm_out(0xAE);
	comm_out(0x40);
	for(i=0;i<4;i++){
		comm_out(page);
		comm_out(0x10);
		comm_out(0x00);
		for(j=0;j<128;j++){
			data_out(*lcd_string);
			lcd_string++;
			}
		page++;
   		}
	comm_out(0xAF);
}
/****************************************************
*           Initialization For controller           *
*****************************************************/
void init_LCD() 
{
comm_out(0xA0);
comm_out(0xAE);
comm_out(0xC0);
comm_out(0xA2);
comm_out(0x2F);
comm_out(0x26);
comm_out(0x81);
comm_out(0x2F);
}
/*****************************************************/
int main(void)
{
P1 = 1;
P3 = 1;
delay(10);
init_LCD();
while(1){
	dispPic(logo);
	delay(1000);
	dispPic(graphic1);
	delay(1000);
	dispPic(graphic2);	
	delay(1000);
}
}