1604.c

TCL1604A-01的驱动 控制器：SPLC780D

//==========================================================================================
 //型号：TCL1604A-01            控制器：SPLC780D
 //硬件接口：数据线位IOA的高八位，RW接IOB11，E接IOB12，RS接IOB13
 //测试情况：已测试成功
 //Made By Caixing          2008.04.17
 //==========================================================================================
 #include<spce061a.h>
 #include<hardware.h>
 
 #define    RS_1()  {*P_IOB_Data|=0x2000;}//rs B13
 #define    RS_0()  {*P_IOB_Data&=0xdfff;}//rs
 
 #define    RW_1()  {*P_IOB_Data|=0x0800;}//rw  B11
 #define    RW_0()  {*P_IOB_Data&=0xf7ff;}//rw
 
 #define    E_1()  {*P_IOB_Data|=0x1000;}//e  B12
 #define    E_0()  {*P_IOB_Data&=0xefff;}//e
 //===========================================================================================
 //语法格式：void LCD_delay(unsigned int i)
 //实现功能：延时
 //参数：	unsigned int i
 //返回值：	无
 //Made By Caixing          2008.04.17
 //===========================================================================================
 void LCD_delay(unsigned int i)
 {
 	while(i--)   *P_Watchdog_Clear=0x0001;
 }
 //===========================================================================================
 //语法格式：void waitforenable()
 //实现功能：读忙
 //参数：	无
 //返回值：	无
 //Made By Caixing          2008.04.17
 //===========================================================================================
 void waitforenable(void)//hen you ke neng ba IOA15 she ji wei shu ru
 {
 	*P_IOA_Data&=0xffff;//初始化BF
 	*P_IOA_Dir&=0x00ff;//ff
 	RS_0();//when RS set low,it means read Busy flag - Address Counter (for read). 
 	RW_1();//在读的情况下读出BF信号
 	E_0();
 	E_1();
 	while(*P_IOA_Data&0x8000)*P_Watchdog_Clear=0x0001;//check BF signal
 	E_0();
 }
 //===========================================================================================
 //语法格式：void Write_Command(unsigned char command,unsigned int attribc)
 //实现功能：向1604写命令
 //参数：	unsigned char command,unsigned int attribc
 //返回值：	无
 //Made By Caixing          2008.04.17
 //==========================================================================================
 void Write_Command(unsigned char command,unsigned int attribc)
 {
 	
 	if(attribc) waitforenable();
 	*P_IOA_Dir=0xffff;//注意要得放在读忙的后面，因为读忙时把端口设置为输入  
 	E_0();
 	RS_0();
 	RW_0();//写数据或写指令取决于RS
 	*P_IOA_Data=(command<<8)&0xff00;//因为数据线接高八位，所以把传的数据向左移八位
 	E_1();
 	LCD_delay(10);
    E_0()
 }
 //===========================================================================================
 //语法格式：void Write_Data(unsigned char data)
 //实现功能：向1604写数据
 //参数：	unsigned char data
 //返回值：	无
 //Made By Caixing          2008.04.17
 //==========================================================================================
 void Write_Data(unsigned char data)
 { 
 
 	waitforenable();
 	*P_IOA_Dir=0xffff;//注意要得放在读忙的后面，因为读忙时把端口设置为输入
 	E_0();
 	RS_1();
 	RW_0();
    *P_IOA_Data=(data<<8)&0xff00;//因为数据线接高八位，所以把传的数据向左移八位
 	E_1();
 	LCD_delay(10);
    E_0();
 }
 //===========================================================================================
 //语法格式：void LCD_Rest(void)
 //实现功能：LCD初始化
 //参数：	无
 //返回值：	无
 //Made By Caixing          2008.04.17
 //==========================================================================================
 void LCD_Rest(void)
 {
 	*P_IOA_Data&=0x00ff;//初始化端口
 	Write_Command(0x38,0);//Function set
 	LCD_delay(300);
 	Write_Command(0x38,0);//Function set
 	LCD_delay(100);
 	Write_Command(0x38,0); //三次显示模式, 不检测忙
    LCD_delay(100);
 	Write_Command(0x38,1);//16*4显示,5*8点阵,8位数据接口,需要检测忙,//Function set
 	Write_Command(0x08,1);//关闭显示Display ON/OFF control
 	Write_Command(0x01,1);//clear显示 
 	Write_Command(0x06,1);//指针和光标+1,不滚屏,//Entry mode set
 	Write_Command(0x0c,1);//开显示,不显示光标,不闪烁//Display ON/OFF control 
 }
 //===========================================================================================
 //语法格式：void LcmClear(void)
 //实现功能：清除显示
 //参数：	无
 //返回值：	无
 //Made By Caixing          2008.04.17
 //==========================================================================================
 void LcmClear(void)
 {
    Write_Command(0x01,1);  //clear  display    
 }
 //===========================================================================================
 //语法格式：void locatexy(unsigned char posx,unsigned char posy)
 //实现功能：定位显示地址
 //参数：	unsigned char posx,unsigned char pos
 //返回值：	无
 //Made By Caixing          2008.04.17
 //==========================================================================================
 void locatexy(unsigned char posx,unsigned char posy)
 {
 	  unsigned char  DDaddres;
 	  posy&=0x03;
      DDaddres=posx&0x0f;                 //限制4行,每行可显示16个字符
      switch(posy)
      {
      	case 0:
			DDaddres+= 0x00;          //0x00 - 0x0f
			break;
		case 1:
			DDaddres+= 0x40;          //0x40 - 0x4f
			break;
		case 2:
			DDaddres+= 0x10;          //0x10 - 0x1f
			break;
		case 3:
			DDaddres+= 0x50;          //0x50 - 0x5f
			break;
		default :
			break;
      }
      DDaddres|=0x80;//送显示地址的时候最高位DB7为1
      Write_Command(DDaddres,1);//Set display data RAM address 
     
  }
 //===========================================================================================
 //语法格式：void displayonechar(unsigned char x,unsigned char y,unsigned char data)
 //实现功能：显示一个字符
 //参数：	unsigned char x,unsigned char y,unsigned char data
 //返回值：	无
 //Made By Caixing          2008.04.17
 //==========================================================================================
 void displayonechar(unsigned char x,unsigned char y,unsigned char data) 
 {
    locatexy(x,y);//显示的地址	
    Write_Data(data);//Write data to character generator RAM or display data RAM
 }
 //===========================================================================================
 //语法格式：void  displaystring(unsigned char x,unsigned char y,unsigned *data
 //实现功能：显示一串数组
 //参数：	unsigned char x,unsigned char y,unsigned *data
 //返回值：	无
 //Made By Caixing          2008.04.17
 //==========================================================================================
 void  displaystring(unsigned char x,unsigned char y,unsigned *data)//显示一串数组
 {
 	unsigned char i=0,j;
 	while(data[i]!='\0'){i++;}
 	for(j=0;j<i;j++)
 	{
 		   displayonechar( x,y,data[j]);
 		   x++;
 		   if(x>15){x=0;y++;}
 		   if(y>4){y=0;}
 	}
 }