單片機(jī)+LCD12864串行方式顯示 Proteus仿真程序

ID:619259 · 發(fā)表于 2020-3-29 23:26

最近的項(xiàng)目用到了LCD12864液晶屏，串行無字庫，此方式只占用五個I/O端口，程序比較簡單，適合初學(xué)者學(xué)習(xí)。今天做了個仿真案例，愿與大家共同探討。

仿真案例以顯示48*48漢字為例，主要讓使用者了解行、列的定義及使用方法，漢字取模方法等。

PCtoLCD2002漢字取模軟件，可以用于液晶屏和LED屏的取模。針對液晶屏的設(shè)置為：

參考程序如下：

#include <reg52.h>
#define uchar unsigned char
#define uint unsigned int
uchar code hz48_48[];
/*********LCD12864液晶引腳功能定義**********/
sbit cs=P0^0;    //片選使能
sbit reset=P0^1;  //復(fù)位
sbit rs=P0^2;    //命令/數(shù)據(jù)選擇，L:命令 H:數(shù)據(jù)
sbit  sid=P0^3;    //串行數(shù)據(jù)輸入
sbit sclk=P0^4;  //時鐘

void delay(uint i)       /*1ms延時函數(shù)*/
{
   uintj,k;
   for(j=0;j<i;j++)
      for(k=0;k<110;k++);
}

/*********LCD12864寫指令********/
void transfer_command(uchar data1)
{
   chari;
   cs=0;
   rs=0;
   for(i=0;i<8;i++)
   {
         sclk=0;
         if(data1&0x80)sid=1;
         elsesid=0;
         sclk=1;
         data1=data1<<=1;
   }
}

/*********LCD12864寫數(shù)據(jù)********/
void transfer_data(uchar data1)
{
   chari;
   cs=0;
   rs=1;
   for(i=0;i<8;i++)
   {
         sclk=0;
         if(data1&0x80)sid=1;
         elsesid=0;
         sclk=1;
         data1=data1<<=1;
   }
}

/*********LCD12864初始化*********/
void initial_lcd()
{
cs=0;
reset=0;    /*低電平復(fù)位*/
delay(100);
reset=1;    /*復(fù)位完畢*/
delay(20);
transfer_command(0xe2); /*軟復(fù)位*/
delay(5);
transfer_command(0x2c); /*升壓步聚 1*/
delay(5);
transfer_command(0x2e); /*升壓步聚 2*/
delay(5);
transfer_command(0x2f); /*升壓步聚 3*/
delay(5);
transfer_command(0x23); /*粗調(diào)對比度，可設(shè)置范圍 0x20～0x27*/
transfer_command(0x81); /*微調(diào)對比度*/
transfer_command(0x28); /*0x1a,微調(diào)對比度的值，可設(shè)置范圍 0x00～0x3f*/
transfer_command(0xa2); /*1/9 偏壓比（bias）*/
transfer_command(0xc0); /*行掃描順序：從上到下，若設(shè)為0xc8，則圖文垂直鏡像*/
transfer_command(0xa1); /*列掃描順序：從右到左，若設(shè)為0xa0，則圖文水平鏡像*/
transfer_command(0x40); /*起始行：第一行開始*/
transfer_command(0xaf); /*開顯示*/
cs=1;
}

void clear()  //清屏
{
  uchar i,j;
  for(j=0;j<8;j++)                //循環(huán)8頁64行
   {
      transfer_command(0xb0+j);  //設(shè)置頁地址
      transfer_command(0x10); //列地址高4位
      transfer_command(0x00); //列地址低4位
      for(i=0;i<128;i++)          //循環(huán)128列
      {transfer_data(0x00);}       //清屏（清零）
   }
}

void display_hz48_48(uchar page,ucharcol,uchar *dp)  //定義頁、列、指針
{
  uchar i,j;
  for(j=0;j<6;j++)                                  //循環(huán)6頁48行（本案例顯示48*48漢字，即48行48列）
   {
      transfer_command(0xb0+page+j);       //設(shè)置頁地址
      transfer_command(0x10+((col>>4)&0x0f)); //列地址高4位，位置跟隨
      transfer_command(0x00+(col&0x0f));    //列地址低4位，位置跟隨
      for(i=0;i<48;i++)                //循環(huán)48列
      {
      transfer_data(*dp);
      dp++;
      }

   }
}

void main(void)          //主程序
{
  initial_lcd();    //初始化
  clear();                //清屏
  delay(200);
  display_hz48_48(1,12,hz48_48);    //顯示第一個字，位置坐標(biāo)：第1頁第12列
  display_hz48_48(1,68,hz48_48+288); //顯示第二個字，位置坐標(biāo)：第1頁第68列
  while(1);
}

/*******以下為字形代碼，由PCtoLCD2002提取**********/
uchar code hz48_48[][288]={
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x08,0x18,0x38,0x78,0xF8,0xF0,0xF0,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x80,0x80,0x80,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x80,0xF0,0xFE,0xFE,0xFE,0x08,0x08,0x0C,0x0C,
0x0C,0x0C,0x84,0x84,0x84,0x84,0xC6,0xC6,0xC6,0xC6,0xE2,0xE2,0x62,0x62,0x03,0x03,
0x03,0x03,0x63,0x73,0x3F,0x3F,0x1F,0x1F,0x1F,0x0E,0x0C,0x08,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x0F,0x0F,0x0F,0x03,0x00,0x00,0x00,0x08,0x38,
0xF8,0xF8,0xF0,0x10,0x19,0x19,0x19,0x08,0x08,0x08,0x0C,0x8C,0xFC,0xFC,0xFC,0x3C,
0x18,0x08,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x40,0xC0,0xC0,0xC0,0xC0,0xC0,
0xC1,0xC7,0x47,0x47,0x62,0x63,0xE3,0xE3,0xE3,0xE3,0x21,0x31,0x31,0x31,0x31,0x31,
0xF0,0xF0,0xF0,0xF0,0xE0,0xE0,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x07,0xFF,0xFF,0xFF,
0xC0,0x08,0x08,0x08,0x0C,0x0C,0xFF,0xFF,0xFF,0x9F,0x8C,0x8C,0x84,0x84,0x80,0x80,
0xFF,0xFF,0xFF,0xFF,0x07,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x07,0x07,
0x07,0x03,0x03,0x03,0x03,0x01,0x01,0x01,0x01,0x01,0x01,0x01,0x01,0x01,0x07,0x1F,
0x1F,0x1F,0x0F,0x01,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,/*"富",0*/
/* (48 X 48 , 楷體, 加粗 )*/

0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x80,0x80,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x80,0x80,0x80,0x80,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x04,0x04,0x04,0x06,0x06,0x06,0x06,0x03,0xFF,
0xFF,0xFF,0x3F,0x0F,0x06,0x00,0x00,0x02,0x1E,0xFE,0xFE,0xFE,0x82,0x82,0x82,0x82,
0x83,0xC1,0xC1,0xFB,0xFF,0x7F,0x5F,0x0F,0x07,0x02,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xFC,0xFC,0xFC,0x0C,0x0C,0x04,0x06,0x06,0x07,
0x07,0x02,0x00,0x00,0x80,0x80,0x80,0x80,0x80,0x81,0x83,0x83,0x81,0x81,0xFF,0xFF,
0xFE,0x4E,0x40,0x60,0x60,0x60,0xF0,0xF0,0xE0,0xE0,0xC0,0x80,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x10,0x38,0x3E,0x3F,0x1F,0x0F,0x0C,0x04,0x06,0x0E,0xFE,0xFE,
0xFC,0x3C,0x08,0x00,0x00,0x03,0x0F,0x3F,0xFF,0xF1,0x60,0x60,0x60,0x20,0xFF,0xFF,
0xFF,0x20,0x30,0x30,0x30,0x3E,0x3F,0x1F,0x17,0x03,0x01,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x80,0xF0,0xFF,0xFF,
0xFF,0x00,0x00,0xC0,0xC0,0xC0,0xC0,0xC0,0xC0,0xC0,0xC0,0xE0,0x60,0x60,0x7F,0x3F,
0x3F,0x30,0x10,0x13,0x17,0x1E,0x7E,0xFC,0xF8,0xF0,0xE0,0x80,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x01,0x01,0x03,0x0F,0x0F,0x0F,0x07,0x03,
0x00,0x00,0x00,0x00,0x01,0x01,0x01,0x01,0x01,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x03,0x07,0x07,0x03,0x00,0x00,0x00,0x00,/*"強(qiáng)",1*/
/* (48 X 48 , 楷體, 加粗 )*/
};

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