十年單片機(jī)開(kāi)發(fā)方案公司深圳英銳恩分享PIC單片機(jī)實(shí)例七:SED1565型液晶串行驅(qū)動(dòng)。

程序(PICC8.05)

/***********************************************
* 標(biāo)題：SED1565圖形LCD模塊驅(qū)動(dòng)                 *  

* 作者：Flashbird                              *
* 日期：2008.03.16                             *
* 版本：ZHX1.0                                 *
* 說(shuō)明：所用單片機(jī)為PIC16F877A                 *
***********************************************/
#include

#define NOP() asm("nop")
#define SI    RB0  
#define SCL   RB1  
#define A0    RB2  
#define CS1   RB3  
#define uch   unsigned char

/**********************************************
* 函數(shù)：SerialInputByte(uch dat)              *
* 描述：從SI口串行輸入8位數(shù)據(jù)                 *
**********************************************/
void SerialInputByte(uch dat)
{
 uch i;
 for(i=0;i<8;i++)
 {
  if(dat&0x80)SI=1;
  else SI=0;
  SCL=0;            //上升沿有效
  NOP();
  SCL=1;
  dat=dat<<1;
 }

}

/**********************************************
* 函數(shù)：WriteData(uch dat)                    *
* 描述：從SI口串行輸入要顯示的數(shù)據(jù)            *
**********************************************/ 
void WriteData(uch dat)
{
 CS1=0;
 A0=1;                 //寫(xiě)數(shù)據(jù)
 SerialInputByte(dat);
 CS1=1;
}

/**********************************************
* 函數(shù)：WriteCommand(uch cmd)                 *
* 描述：從SI口串行輸入命令                    *
**********************************************/ 
void WriteCommand(uch cmd)
{
 CS1=0;
 A0=0;                 //寫(xiě)命令
 SerialInputByte(cmd);
 CS1=1;
}

/**********************************************
* 函數(shù)：ClearScreen()                         *
* 描述：清屏                                  *
**********************************************/ 
void ClearScreen()
{
 uch i,j;
 for(i=0;i<8;i++)
 {
  WriteCommand(0xb0+i);
  WriteCommand(0x10);
  WriteCommand(0x0);
  for(j=0;j<132;j++)
  {
   WriteData(0x00);
  }

 }
}

/**********************************************
* 函數(shù)：SetLine(uch line)                     *
* 描述：設(shè)定頁(yè)地址----X:0--7                  *
**********************************************/ 
void SetLine(uch line)
{
 line=line&0x07;               //0<=line<=7 
 line=line|0xb0;
 WriteCommand(line);
}

/**********************************************
* 函數(shù)：SetColumn(uch column)                 *
* 描述：設(shè)定列地址----Y:0--127                *

**********************************************/
void SetColumn(uch column)
{
 uch column_h,column_l;
 column=column&0x7f;          //0<=column<=127
 column_h=column&0x0f0;       //列地址高四位
 column_h=column>>4;
 column_l=column&0x0f;        //列地址低四位
 column_h=column_h|0x10;
 column_l=column_l|0x00;
 WriteCommand(column_h);
 WriteCommand(column_l);
}

/**********************************************
* 函數(shù)：SetOnOff(uch state)             *
* 描述：開(kāi)關(guān)顯示  1:開(kāi)顯示  0:關(guān)顯示 *
**********************************************/
void SetOnOff(uch state)
{
 state=state|0xae;
 WriteCommand(state);
}

/*****************************************************
* 函數(shù)：Show16X16(uch line,uch comlon,const uch *pt) *
* 描述：顯示一個(gè)16X16的漢字                                        *
*       line:顯示的頁(yè)（0--7）                                             *

*       column:顯示的列（0--127）                                   *
*       *pt:顯示字的首地址                                                 *
*****************************************************/
void Show16X16(uch line,uch column,const uch *pt)
{
 uch i,column_temp;
 WriteCommand(0xa1);                  //反向顯示(即從左到右顯示)
 column_temp=column;
 SetColumn(column);                   //設(shè)置起始列
 SetLine(line);                       //設(shè)置行
 for(i=0;i<16;i++)
 {  
  WriteData(*pt);                  //寫(xiě)數(shù)據(jù)
  *pt++;//
  column++;
 }

 SetLine(line+1);                    //設(shè)置漢字下半部分顯示頁(yè)
 column=column_temp;
 SetColumn(column);
 for(i=0;i<16;i++)
 { 
  WriteData(*pt);
  *pt++;
  column++;
 }
}
//以下為測(cè)試程序
/**********************************************
* 函數(shù)：Init()                                      *
* 描述：端口初始化                            *
**********************************************/ 
void init()
{
 TRISB=0;
 PORTB=0;
}

//字庫(kù)
const uch huan[]=
{0x14,0x24,0x44,0x84,0x64,0x1C,0x20,0x18,0x0F,0xE8,0x08,0x08,0x28,0x18,0x08,0x00,
 0x20,0x10,0x4C,0x43,0x43,0x2C,0x20,0x10,0x0C,0x03,0x06,0x18,0x30,0x60,0x20,0x00};/*"歡",0*/
const uch ying[]=
{0x40,0x41,0xCE,0x04,0x00,0xFC,0x04,0x02,0x02,0xFC,0x04,0x04,0x04,0xFC,0x00,0x00,
 0x40,0x20,0x1F,0x20,0x40,0x47,0x42,0x41,0x40,0x5F,0x40,0x42,0x44,0x43,0x40,0x00};/*"迎",1*/
const uch fang[]=

{0x40,0x41,0x4E,0xC4,0x00,0x08,0x08,0x08,0x09,0xFE,0x4A,0x48,0x48,0xC8,0x08,0x00,
 0x00,0x00,0x00,0x3F,0x10,0x48,0x20,0x18,0x07,0x00,0x20,0x60,0x20,0x1F,0x00,0x00};/*"訪",2*/
const uch wen[]=
{0x00,0x00,0xF8,0x01,0x06,0xE0,0x22,0x22,0x22,0x22,0xE2,0x02,0x02,0xFE,0x00,0x00,
 0x00,0x00,0xFF,0x00,0x00,0x03,0x02,0x02,0x02,0x02,0x03,0x40,0x80,0x7F,0x00,0x00};/*"問(wèn)",3*/

//滾動(dòng)顯示“歡迎訪問(wèn)”
void test()
{
 int i;
 uch set=0;
 uch column=32;
 while(1)
 {
  Show16X16(3,column,huan);
  Show16X16(3,column+16,ying);
  Show16X16(3,column+32,fang);
  Show16X16(3,column+48,wen);
  for(i=0;i<4000;i++);
  if(set==0)column--;
  if(set==1)
  {
   column++;
   SetColumn(column-1);
   SetLine(3);
   WriteData(0);           //擦除前面顯示的數(shù)據(jù)
   SetColumn(column-1);
   SetLine(4);
   WriteData(0);           //擦除前面顯示的數(shù)據(jù)
  }
  if(column==0)set=1;         //如果到最左，就往右移
  if((column+48)==111)set=0;  //如果到最右，就往左移
 }
}

void main()
{

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