ht1621.c

HT1621驱动

/******************************************************************
编制时间：2006.10.28
编制人：梁香勇
编制目的：测试笔段型模块
程序应用功能：现在能应用与ES019004/ES02500，可用于ES025004G的按钮测试4
应用IC：HT162
*******************************************************************/
#include <AT89X51.h>
#include <Intrins.h>
#define CS		P3_2	// Chip Selection (Low Effective)
#define SDA		P3_0 	// Data I/O
#define SCK		P3_1	// Write Clock Input (0 to 1)(4us Tclk is needed)
sbit K2switch = P3^3;
sbit K1switch = P3^4;
#define seg		32
void delay4us(void);	// Delay 4us
void UsTime(unsigned char i);
void SetMode(unsigned char ICMode);
void delay100ms(void);
void delay500ms(void);
void delay1s(void);		// Delay 1 second
void display(unsigned char *pdbbit);
code unsigned char wcd1[]={ 0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff }; 
code unsigned char wcd2[]={ 0x00,0x07,0x0f,0x07,0x07,0x00,0x00,0x00,0x00,0x00,0x0e,0x0e,0x0f,0x0e,0x0f,0x0e,0x0f,0x0e,0x0f,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x0f,0x07,0x0f,0x07,0x00,0x0f,0x00 }; 
code unsigned char wcd3[]={ 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00 };
code unsigned char wcd4[]={ 0x0e,0x0e,0x0e,0x0e,0x0e,0x0e,0x0e,0x0e,0x0e,0x0e,0x0e,0x0e,0x0e,0x0e,0x0e,0x0e,0x0e,0x0e,0x0e,0x0e,0x0e,0x0e,0x0e,0x0e,0x0e,0x0e,0x0e,0x0e,0x0e,0x0e,0x0e,0x0e };
//==================================================
//延时微秒
//==================================================

void Delay_us(unsigned char us)   
{                                     
 unsigned char j;                   
 for(j=0;j<us;j++)                     
   _nop_();                           
}   

// Delay microsecond larger than 400us
void DelayUs(unsigned int Tus)
{
	Tus = Tus - 135;
	Tus = (Tus - 9)/11;
	while (--Tus >0);
}

void delay4us(void)
{
 	 // 4us delay
}

// Delay microsecond less than 255us
void UsTime(unsigned char i)
{
	i=i/2-5;
	while(--i!=0);
}

void delay100ms(void)
{
	unsigned char i;
	for (i = 0 ; i < 2 ; i++)
	{
		DelayUs(25000);
	}
}
void delay500ms(void)
{
	unsigned char i;
	for (i = 0 ; i < 10 ; i++)
	{
		DelayUs(50000);
	}
}
void delay1s(void)
{
	unsigned char i;
	for (i = 0 ; i < 20 ; i++)
	{
		DelayUs(50000);
	}
}

void SetCA(unsigned char Addr)
{
	unsigned char i;
	SetMode(0xA0);
	for (i = 0; i < 6; i++)
	{
		SCK = 0;
		SDA = (Addr << (i + 2)) & 0x80;
		SCK = 1;
	}
}



void SetMode(unsigned char ICMode)
{
	unsigned char i;
	CS = 0;
	CS = 1;
	delay4us();
	CS = 0;
	for (i = 0; i < 3; i++)
	{
		SCK = 0;
		SDA = (ICMode << i) & 0x80;
		SCK = 1;
	}
}

// Send a command to the IC
void SendCmd(unsigned char Command)
{
	// 9 bits total
	unsigned char i;
	for (i = 0; i < 9; i++)
	{
		SCK = 0;
		SDA = (Command << i) & 0x80;
		SCK = 1;
	}
}


void WriteData(unsigned char dByte)
{
	unsigned char i;
	for (i = 0; i < 4; i++)
	{ if(K1switch==1)
      { 
       if(K1switch==1)
        {Delay_us(5);
         for(;;)
          { if(K2switch==1)
             {  Delay_us(5);
                if(K2switch==1)
                return;
              }
           }
         }
 //       Delay_1s();
  //      Delay_1s();
  //      Delay_1s();
   //    Delay_1s();
       }
      else
       {
		SCK = 0;
		SDA = (dByte >> i) & 0x01;		
		SCK = 1;
       }
	}
}
//***********************************************
//普通扫描
//**********************************************
void display(unsigned char *pdbbit)
{
    unsigned char m;
     SetCA(0);
     for(m=0; m < seg; m++)
         {
		   WriteData(pdbbit[m]);
			delay100ms();
			//delay100ms();
		  } 
     
}
//***********************************************
//快速扫描
//**********************************************
void displayL(unsigned char *pdbbit)
{
    unsigned char m;
     SetCA(0);
     for(m=0; m < seg; m++)
         {
		   WriteData(pdbbit[m]);
			//delay100ms();
			//delay100ms();
		  } 
     
}
//clear all display
void clear(void)
{
    unsigned char n;
     SetCA(0);
     for(n=0; n < seg; n++)
         {
		   WriteData(0x00);
			
		  } 
     
}



// LCD Initialization
void LCD_Init(void)
{   
	SetMode(0x80);
	SendCmd(0x01);
	SendCmd(0x18);
	SendCmd(0x29);
	SendCmd(0x03);
}

void main(void)
{   
	//P3=0;	
    K2switch=0;
    K1switch=0;
	LCD_Init();
	clear();
	while(1)
	{
	
	displayL(wcd1);
	delay500ms();
    delay500ms();

	display(wcd3);
	delay500ms();
	
//	display(wcd1);
//	delay500ms();
//  delay500ms();
	displayL(wcd1);
	delay500ms();
    delay500ms();
	
	display(wcd3);
	delay500ms();
//	delay500ms();
	
//	display(wcd1);
//	delay500ms();

//	display(wcd3);
//	delay500ms();

	}
}