lcd.c

基于DSP2407A和T6963C液晶模块的液晶程序

#include "2407c.h"                    

#define LCDDELAY 1
#define LCDCMDTURNON 0x3f
#define LCDCMDTURNOFF 0x3e
#define LCDCMDSTARTLINE 0xc0
#define LCDCMDPAGE 0xb8
#define LCDCMDVERADDRESS 0x40

ioport unsigned int port8000;
ioport unsigned int port8005;
ioport unsigned int port8001;
ioport unsigned int port8002;
ioport unsigned int port8003;
ioport unsigned int port8004;
ioport unsigned int port8007;
#define CTRGR port8000
#define CTRLCDCMDR port8001
#define CTRKEY port8001
#define CTRLCDCR port8002
#define CTRCLKEY port8002
#define CTRLCDLCR  port8003
#define CTRLCDRCR port8004
#define CTRLA port8005
#define CTRLR port8007

void Delay(unsigned int nTime);		// 延时子程序
void TurnOnLCD();			// 打开显示
void LCDCLS();				// 清除屏幕显示内容

unsigned char ledkey[10][8]=
{
	{0x00,0x00,0x7C,0x82,0x82,0x82,0x7C,0x00},	//0
	{0x00,0x00,0x00,0x84,0xFE,0x80,0x00,0x00},	//1
	{0x00,0x00,0x84,0xC2,0xA2,0x92,0x8C,0x00},	//2
	{0x00,0x00,0x44,0x92,0x92,0x92,0x6C,0x00},
	{0x00,0x00,0x30,0x28,0x24,0xFE,0x20,0x00},
	{0x00,0x00,0x4E,0x92,0x92,0x92,0x62,0x00},
	{0x00,0x00,0x7C,0x92,0x92,0x92,0x64,0x00},
	{0x00,0x00,0x02,0xC2,0x32,0x0A,0x06,0x00},
	{0x00,0x00,0x6C,0x92,0x92,0x92,0x6C,0x00},
	{0x00,0x00,0x4C,0x92,0x92,0x92,0x7C,0x00}
};

main()
{
	int i,nCount=0;
	unsigned int uWork;

	*WDCR=0x6f;
	*WDKEY=0x5555;
	*WDKEY=0xaaaa;    
	*SCSR1=0x81fe;   
	*IMR=0x0;
	*IFR=0xffff;    
	uWork=(*WSGR);
	uWork&=0x0fe3f;
	(*WSGR)=uWork;

	LCDCLS();				// 清除显示内存
	TurnOnLCD();				// 打开显示
	CTRLCDCMDR=LCDCMDSTARTLINE;		// 设置显示起始行
	CTRLCDCR=0;
	Delay(LCDDELAY);
	for (;;)
	{
		CTRLCDCMDR=LCDCMDPAGE;		// 设置操作页=0
		CTRLCDCR=0;
		Delay(LCDDELAY);
		CTRLCDCMDR=LCDCMDVERADDRESS;	// 起始列=0
		CTRLCDCR=0;
		Delay(LCDDELAY);
		for ( i=0;i<8;i++ )
		{
			CTRLCDLCR=ledkey[nCount][i];	// 屏幕左侧第1至8行第i列赋值							port8002=0;			// (赋值后当前操作列自动加1，所以不需设置)
			CTRLCDCR=0;
			Delay(LCDDELAY);
		}
		Delay(2048);
		nCount++;
		nCount%=10;
	}
}               

void Delay(unsigned int nDelay)
{
	int ii,jj,kk=0;
	for ( ii=0;ii<nDelay;ii++ )
	{
		for ( jj=0;jj<64;jj++ )
		{
			kk++;
		}
	}
}

void TurnOnLCD()
{
	CTRLCDCMDR=LCDCMDTURNON;
	CTRLCDCR=0;
	Delay(1024);  
	CTRLCDCMDR=LCDCMDSTARTLINE;
	CTRLCDCR=0;
	Delay(LCDDELAY);
}

void LCDCLS()
{
	int i,j;
	CTRLCDCMDR=LCDCMDSTARTLINE;
	CTRLCDCR=0;
	Delay(LCDDELAY);
	for ( i=0;i<8;i++ )
	{
		CTRLCDCMDR=LCDCMDPAGE+i;
		CTRLCDCR=0;
		Delay(LCDDELAY);
		CTRLCDCMDR=LCDCMDVERADDRESS;
		CTRLCDCR=0;
		Delay(LCDDELAY);
		for ( j=0;j<64;j++ )
		{
			CTRLCDLCR=0;
			CTRLCDCR=0;
			Delay(LCDDELAY);
		}
		CTRLCDCMDR=LCDCMDPAGE+i;
		CTRLCDCR=0;
		Delay(LCDDELAY);
		CTRLCDCMDR=LCDCMDVERADDRESS;
		CTRLCDCR=0;
		Delay(LCDDELAY);
		for ( j=0;j<64;j++ )
		{
			CTRLCDRCR=0;
			CTRLCDCR=0;
			Delay(LCDDELAY);
		}
	}
}