12864带字库显示屏滚屏显示

/*****************************************************/
//描述：LCD12864的驱动
//作者：小四叶草
//时间：2015/07/16
//描述：显示屏的滚动，需要扩展指令
//卷地址只能滚屏64行，也就是2页（一页四行），那我只能定义虚拟页（page）,让它来满足我一直滚屏显示我的文字。比我的文字是四页
/*****************************************************/
#include "DSP2833x_Device.h"     // DSP2833x Headerfile Include File
#include "DSP2833x_Examples.h"   // DSP2833x Examples Include File

#define LCD_DATA		(*((volatile Uint16 *)0x45EF))
#define E				GpioDataRegs.GPBDAT.bit.GPIO61
#define RW				GpioDataRegs.GPADAT.bit.GPIO27
#define RS 				GpioDataRegs.GPBDAT.bit.GPIO60
#define LOW 			0
#define HIGH			1
#define CLEAR_SCREEN	0x01		//清屏指令：清屏且AC值为00H
#define AC_INIT			0x02		//将AC设置为00H。且游标移到原点位置
#define CURSE_ADD		0x06		//设定游标移到方向及图像整体移动方向（默认游标右移，图像整体不动）
#define FUN_MODE		0x30		//工作模式：8位基本指令集
#define DISPLAY_ON		0x0c		//显示开,显示游标，且游标位置反白
#define DISPLAY_OFF		0x08		//显示关
#define CURSE_DIR		0x14		//游标向右移动:AC=AC+1
#define SET_CG_AC		0x40		//设置AC，范围为：00H~3FH
#define SET_DD_AC		0x80 

#define	DELAY_MS(A)		DELAY_US((long double)A * 1000.0L)
#define DELAY_100US(B)	DELAY_US((long double)B * 100.0L)

void InitXintf(void);
void ConfigGpio(void);
void InitLcd(void);
void Read_Busy(void);
void WriteCmd12864(Uint16 cmd);
void WriteData12864(Uint16 dat);
void DisplayDdram(uchar *hz);
void DispBMP(uchar *adress);
void CLR_GDRAM(void);
void gunping(void);
void gunping1(void);
void gunping2(void);

//=========一页========================
uchar tab1[]="晴天有月来几时？";
uchar tab2[]="我今停杯一问之。";

uchar tab3[]="人攀明月不可得，";
uchar tab4[]="月行却与人相随。";
//========二页==========================
uchar tab5[]="胶白飞镜林丹阙，";
uchar tab6[]="绿烟灭尽清辉发。";

uchar tab7[]="但见宵从海上来，";
uchar tab8[]="宁知晓向云间没？";
//========三页==========================
uchar tab9[]="白兔捣药秋复春，";
uchar tab10[] = "嫦娥孤栖与谁邻？";

uchar tab11[] = "今人不见古时月，";
uchar tab12[]="今月曾经照古人";
//========四页==========================
uchar tab13[]="古人今人如流水，";
uchar tab14[]="共看明月皆如此。";

uchar tab15[]="唯愿当歌对酒时，";
uchar tab16[]="月光长照金樽里。";




void main(void)
{
	uchar i;
	uchar page = 0;
	InitSysCtrl();
	InitXintf();
	InitXintf16Gpio();
	DINT;
	InitPieCtrl();
	
	IER = 0x0000;
	IFR = 0x0000;
	
	ConfigGpio();
	InitLcd();
	WriteCmd12864(CLEAR_SCREEN);
	DELAY_US(50);
	
	gunping();
	
	WriteCmd12864(0x34); //开启扩展指令
	WriteCmd12864(0x03);//允许写入卷动地址
	for(i = 0;i < 64; i++)
	{
		if((32 == i) & (0 == page))
		{
			WriteCmd12864(0x30); //返回到基本指令
			WriteCmd12864(0x80);
			DisplayDdram(tab5);
			WriteCmd12864(0x90);
			DisplayDdram(tab6);
			
			WriteCmd12864(0x88);
			DisplayDdram(tab7);
			WriteCmd12864(0x98);
			DisplayDdram(tab8);
			WriteCmd12864(0x34); //开启扩展指令
			WriteCmd12864(0x03);//允许写入卷动地址
		}
		else if((32 == i) & (1 == page))
		{
			WriteCmd12864(0x30); //返回到基本指令
			WriteCmd12864(0x80);
			DisplayDdram(tab9);
			WriteCmd12864(0x90);
			DisplayDdram(tab10);
			
			WriteCmd12864(0x88);
			DisplayDdram(tab11);
			WriteCmd12864(0x98);
			DisplayDdram(tab12);
			WriteCmd12864(0x34); //开启扩展指令
			WriteCmd12864(0x03);//允许写入卷动地址
		}
		else if((32 == i) & (2 == page))
		{
			WriteCmd12864(0x30); //返回到基本指令
			WriteCmd12864(0x80);
			DisplayDdram(tab13);
			WriteCmd12864(0x90);
			DisplayDdram(tab14);
			
			WriteCmd12864(0x88);
			DisplayDdram(tab15);
			WriteCmd12864(0x98);
			DisplayDdram(tab16);
			WriteCmd12864(0x34); //开启扩展指令
			WriteCmd12864(0x03);//允许写入卷动地址
		}
		else if((63 == i) & (0 == page))
		{
			i =0;
			page++;
			WriteCmd12864(0x30); //返回到基本指令
			gunping1();
			WriteCmd12864(0x34); //开启扩展指令
			WriteCmd12864(0x03);//允许写入卷动地址
			
			
		}
		else if((63 == i) & (1 == page))
		{
			i =0;
			page++;
			WriteCmd12864(0x30); //返回到基本指令
			gunping2();
			WriteCmd12864(0x34); //开启扩展指令
			WriteCmd12864(0x03);//允许写入卷动地址
			
			
		}
		else
		{
			
		}
		WriteCmd12864(0x40 + i);
		DELAY_MS(10);
	
		
	}
	WriteCmd12864(0x30); //返回到基本指令

}

void ConfigGpio(void)
{
	EALLOW;
	GpioCtrlRegs.GPBMUX2.bit.GPIO60 = 0;
	GpioCtrlRegs.GPBDIR.bit.GPIO60 = 1;
	GpioCtrlRegs.GPBMUX2.bit.GPIO61 = 0;
	GpioCtrlRegs.GPBDIR.bit.GPIO61 = 1;
	GpioCtrlRegs.GPAMUX2.bit.GPIO27 = 0;
	GpioCtrlRegs.GPADIR.bit.GPIO27 = 1;
	EDIS;
}

void InitLcd(void)
{
	DELAY_100US(5);
	WriteCmd12864(FUN_MODE);
	DELAY_US(5);
	
	WriteCmd12864(FUN_MODE);
	DELAY_US(5);
	
	WriteCmd12864(0x0C);
	DELAY_US(5);
	
	WriteCmd12864(CLEAR_SCREEN);
	DELAY_US(30);
	
	WriteCmd12864(AC_INIT);
	DELAY_US(4);

}
void Read_Busy() //读忙标志最高位为1，则busy,不能进行读写操作
{
	RS = LOW;
	RW = HIGH;
	E = HIGH;
	while(LCD_DATA & 0X80);
	E = LOW;
}
void WriteCmd12864(Uint16 cmd)
{
	Read_Busy();
	RS = LOW;
	RW = LOW;//写数据
	E = HIGH;
	LCD_DATA  = cmd;
	E = LOW;
}

void WriteData12864(Uint16 dat)
{
	Read_Busy();
	RS = HIGH;
	RW = LOW;//写数据
	E = HIGH;
	LCD_DATA  = dat;
	E = LOW;
}

void DisplayDdram(uchar *hz)
{
	while(*hz != '\0')
	{
		WriteData12864(*hz);//地址里面的值
		hz++;
	}
}

void gunping()
{
	WriteCmd12864(0x80);
	DisplayDdram(tab1);
	WriteCmd12864(0x90);
	DisplayDdram(tab2);
	
	WriteCmd12864(0xA0);
	DisplayDdram(tab3);
	WriteCmd12864(0xB0);
	DisplayDdram(tab4);
	
	WriteCmd12864(0x88);
	DisplayDdram(tab3);
	WriteCmd12864(0x98);
	DisplayDdram(tab4);
	WriteCmd12864(0xA8);
	DisplayDdram(tab5);
	WriteCmd12864(0xB8);
	DisplayDdram(tab6);
	
}
void gunping1()
{
	WriteCmd12864(0x80);
	DisplayDdram(tab5);
	WriteCmd12864(0x90);
	DisplayDdram(tab6);
	
	WriteCmd12864(0xA0);
	DisplayDdram(tab7);
	WriteCmd12864(0xB0);
	DisplayDdram(tab8);
	
	WriteCmd12864(0x88);
	DisplayDdram(tab7);
	WriteCmd12864(0x98);
	DisplayDdram(tab8);
	WriteCmd12864(0xA8);
	DisplayDdram(tab9);
	WriteCmd12864(0xB8);
	DisplayDdram(tab10);
	
}

void gunping2()
{
	WriteCmd12864(0x80);
	DisplayDdram(tab9);
	WriteCmd12864(0x90);
	DisplayDdram(tab10);
	
	WriteCmd12864(0xA0);
	DisplayDdram(tab11);
	WriteCmd12864(0xB0);
	DisplayDdram(tab12);
	
	WriteCmd12864(0x88);
	DisplayDdram(tab11);
	WriteCmd12864(0x98);
	DisplayDdram(tab12);
	WriteCmd12864(0xA8);
	DisplayDdram(tab13);
	WriteCmd12864(0xB8);
	DisplayDdram(tab14);
	
}