lcd.c

RT12232液晶显示器驱动程序

#include <avr/io.h>
#include <avr/signal.h>
#include <avr/delay.h>
#include "self_def.h"


//定义字码数组
unsigned char zima[]={
		//{0}
		0x00,0xE0,0x10,0x08,0x08,0x10,0xE0,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
		0x00,0x0F,0x10,0x20,0x20,0x10,0x0F,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,

		//{1}
		0x00,0x10,0x10,0xF8,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
		0x00,0x20,0x20,0x3F,0x20,0x20,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,

		//{2}
		0x00,0x70,0x08,0x08,0x08,0x88,0x70,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
		0x00,0x30,0x28,0x24,0x22,0x21,0x30,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,

		//{3}
		0x00,0x30,0x08,0x88,0x88,0x48,0x30,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
		0x00,0x18,0x20,0x20,0x20,0x11,0x0E,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,

		//{4}
		0x00,0x00,0xC0,0x20,0x10,0xF8,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
		0x00,0x07,0x04,0x24,0x24,0x3F,0x24,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,

		//{5}
    	0x00,0xF8,0x08,0x88,0x88,0x08,0x08,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
		0x00,0x19,0x21,0x20,0x20,0x11,0x0E,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,

		//{6}
		0x00,0xE0,0x10,0x88,0x88,0x18,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
		0x00,0x0F,0x11,0x20,0x20,0x11,0x0E,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,

		//{7}
		0x00,0x38,0x08,0x08,0xC8,0x38,0x08,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
		0x00,0x00,0x00,0x3F,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,

		//{8}
		0x00,0x70,0x88,0x08,0x08,0x88,0x70,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
		0x00,0x1C,0x22,0x21,0x21,0x22,0x1C,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,

		//{9}
		0x00,0xE0,0x10,0x08,0x08,0x10,0xE0,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
		0x00,0x00,0x31,0x22,0x22,0x11,0x0F,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,

		//{E}
		0x08,0xF8,0x88,0x88,0xE8,0x08,0x10,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
		0x20,0x3F,0x20,0x20,0x23,0x20,0x18,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,

		//{S}
		0x00,0x70,0x88,0x08,0x08,0x08,0x38,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
		0x00,0x38,0x20,0x21,0x21,0x22,0x1C,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,

		//{W}
		0xF8,0x08,0x00,0xF8,0x00,0x08,0xF8,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
		0x03,0x3C,0x07,0x00,0x07,0x3C,0x03,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,

		//{N}
		0x08,0xF8,0x30,0xC0,0x00,0x08,0xF8,0x08,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
		0x20,0x3F,0x20,0x00,0x07,0x18,0x3F,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
		};
//发送主控制指令
void OUTMI(uchar i)
{
	E1_H;
	EN_INS;
	PORTA=i;
	//_delay_us(10);
	E1_L;
}
//发送从控制指令
void OUTSI(uchar i)
{
	E2_H;
	EN_INS;
	PORTA=i;
	//_delay_us(10);
	E2_L;
}
//发送主数据
void OUTMD(uchar i)
{
	E1_H;
	EN_DATA;
	PORTA=i;
	//_delay_us(10);
	E1_L;
}
//发送从数据
void OUTSD(uchar i)
{
	E2_H;
	EN_DATA;
	PORTA=i;
	//_delay_us(10);
	E2_L;
}
//设置页面
void SetPage(uchar i,uchar j)
{
	OUTMI(0xB8|i);
	OUTSI(0xB8|j);
}
//设置物理地址
void SetAddress(uchar i,uchar j)
{
	OUTMI(i);
	OUTSI(i);
}
//清屏
void clrscr(void)
{
	uchar i,page;
	for(page=0;page<4;page++)
	{
		SetPage(page,page);
		SetAddress(0,0);
		for(i=0;i<61;i++)
		{
			OUTMD(0);
			OUTSD(0);
		}
	}
}
//显示两行汉字
//字码为宋体,常规,小四,16*16格式
void display_word(uchar d,uchar x_add,uchar layer)
{
	//page表示页面，address表示显存的物理地址，window左右部分
	uchar x,address=0,window=0;
	unsigned int d_where;
	//uchar dis_data;
	d_where=d*32;
	for(x=0;x<16;x++)
	{
		if(x_add>60){
						window=1;
						address=x_add%61;
					}
		else
					address=x_add;
		if(layer==0)
		{
			//写第一行8个字
			SetPage(0,0);					//写page0
			SetAddress(address,address);	
			if(1==window)					//判断左边还是右边,即主还是从
				OUTSD(zima[d_where]);
			else
				OUTMD(zima[d_where]);
			SetPage(1,1);					//写page1
			SetAddress(address,address);
			if(1==window)
				OUTSD(zima[d_where+16]);
			else
				OUTMD(zima[d_where+16]);
		}
		else
		{
			//写第二行8个字
			SetPage(2,2);
			SetAddress(address,address);
			if(1==window)
				OUTSD(zima[d_where]);
			else
				OUTMD(zima[d_where]);
			SetPage(3,3);
			SetAddress(address,address);
			if(1==window)
				OUTSD(zima[d_where+16]);
			else
				OUTMD(zima[d_where+16]);
		}
		x_add++;
		d_where++;		
	}
}
//初始化LCD
void init_lcd(void)
{
	
	DDRA=0xFF;
	DDRB|=(1<<PB0)|(1<<PB1)|(1<<PB4);
	DDRD|=(1<<PD4);
	EN_WRITE;

	OUTMI(0xE2);OUTSI(0xE2);			//复位
	OUTMI(0xAE);OUTSI(0xAE);			//POWER SAVE
	OUTMI(0xA4);OUTSI(0xA4);			//动态驱动
	OUTMI(0xA9);OUTSI(0xA9);			//1/32占空比
	OUTMI(0xA0);OUTSI(0xA0);			//顺时针
	OUTMI(0xEE);OUTSI(0xEE);			//写模式
	OUTMI(0x00);						//column 0
	OUTMI(0xC0);						//从第一行开始显示
	OUTSI(0x00);
	OUTSI(0xC0);
	OUTMI(0xAF);OUTSI(0xAF);			//display on
}
//取字码地址
uchar get_d_where(uchar c)
{
	uchar d_where;
	if(c>='0'&&c<='9')
		d_where=c-'0';
	else if(c=='E'||c=='e')
		d_where=10;
	else if(c=='S'||c=='s')
		d_where=11;
	else if(c=='W'||c=='w')
		d_where=12;
	else
		d_where=13;
	return d_where;
}

int main(void)
{
	//时钟
	//CLKPR=(1<<CLKPCE)|(1<<CLKPS1)|(1<<CLKPS0);
	//OSCCAL=0xC7;
	DDRD=(1<<PD2);
	PORTD&=~(1<<PD2);
	MCUCR=(1<<ISC01)|(1<<ISC00);
	GICR=(1<<INT0);

	SREG|=(1<<SREG_I);
	init_lcd();
	uchar gps_data[]={"Nn9654"};
	uchar i=0,x_add=0,d_where,c;
	clrscr();
	
	while(gps_data[i]!='\0')
	{
		c=gps_data[i];
		d_where=get_d_where(c);
		display_word(d_where,x_add,0);
		display_word(d_where,x_add,1);
		x_add+=16;	
		i++;
	}
	_delay_us(100);
	PORTD=(1<<PD2);
	while(1);
}


SIGNAL(SIG_INTERRUPT0)
{
	clrscr();
	display_word(1,0,0);
	display_word(2,16,0);
	display_word(3,32,0);
	display_word(4,48,0);
	display_word(5,0,1);
	display_word(6,16,1);
	display_word(7,32,1);
	display_word(8,48,1);
}