LCD14432显示中文乱码，不知道怎么回事。

2019-07-15 09:10发布

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//宏定义引脚
#define rs A0
#define rw A1
#define en A2
#define psb A3
#define D4 3
#define D5 9
#define D6 10
#define D7 11
//汉字地址表可以显示 9*2 个汉字
unsigned char addr_tab[]=
{
0x80,0x81,0x82,0x83,0x84,0x85,0x86,0x87,//第一行汉字位置

0x90,0x91,0x92,0x93,0x94,0x95,0x96,0x97, //第二行汉字位置

};
unsigned char DIS1[]={"朝辞白帝彩云间"};

//发送数据，先发高四位，再发第四位
void lcd_WritData(uint8_t value)
{

   byte d=0;
      digitalWrite(rs,1);
      digitalWrite(en,0);
   d=value & 0x80;
      digitalWrite(D7,d);
   d=value & 0x40;
   digitalWrite(D6,d);
      d=value & 0x20;
      digitalWrite(D5,d);
      d=value & 0x10;
      digitalWrite(D4,d);

      digitalWrite(en,1);

      digitalWrite(en,0);

   d=value & 0x08;
      digitalWrite(D7,d);
   d=value & 0x04;
   digitalWrite(D6,d);
      d=value & 0x02;
      digitalWrite(D5,d);
      d=value & 0x01;
      digitalWrite(D4,d);

         digitalWrite(en,1);

      digitalWrite(en,0);
}
//发送命令指令
void lcd_WriteComn(uint8_t value)
{
      byte d=0;

      digitalWrite(rs,0);
      digitalWrite(en,0);

   d=value & 0x80;
      digitalWrite(D7,d);
   d=value & 0x40;
   digitalWrite(D6,d);
      d=value & 0x20;
      digitalWrite(D5,d);
      d=value & 0x10;
      digitalWrite(D4,d);

   digitalWrite(en,1);

      digitalWrite(en,0);

   d=value & 0x08;
      digitalWrite(D7,d);
   d=value & 0x04;
   digitalWrite(D6,d);
      d=value & 0x02;
      digitalWrite(D5,d);
      d=value & 0x01;
      digitalWrite(D4,d);

      digitalWrite(en,1);

      digitalWrite(en,0);
}

//设置显示的位置
void lcd_setpos(unsigned char x , unsigned char y)
{
      unsigned char pos;
      if(x==1)
      {
            x=0x80;
      }else if(x==2)
      {
            x=0x90;
      }
      else if(x==3)
      {
            x=0x88;
      }
      else if(x==4)
      {
            x=0x98;

      }
      pos= x+y;
      lcd_WriteComn(pos);

}

/*
void setPosition(unsigned char x, unsigned char y)
{
unsigned char p;
switch(x%4)
{
      case 0: p = 0x80; break; //第一行开始地址
      case 1: p = 0x90; break; //第二行
      case 2: p = 0x88; break; //第三行
      case 3: p = 0x98; break; //第四行
}
p += y;
lcd_WriteComn(p);
}
*/
void writeString(unsigned char * str)
{
unsigned char i = 0;
while(str != '')
{
      lcd_WritData(str[i++]);
}
}
void lcd_Init()
{
  digitalWrite(psb,1);
  lcd_WriteComn(0x20);//四位bit，基本指令
  delay(10);
  lcd_WriteComn(0x03);//
  delay(10);
  lcd_WriteComn(0x0c);
  delay(10);
  lcd_WriteComn(0x01);//清屏显示
  delay(10);
  lcd_WriteComn(0x06);
  delay(10);
}
//主函数
void setup() {
  // put your setup code here, to run once:
  pinMode(rs,OUTPUT);
  pinMode(rw,OUTPUT);
  pinMode(en,OUTPUT);
  pinMode(psb,OUTPUT);
  pinMode(D4,OUTPUT);
  pinMode(D5,OUTPUT);
  pinMode(D6,OUTPUT);
  pinMode(D7,OUTPUT);
  lcd_Init();

  lcd_setpos(2,0);
  for(int i=0;i<16;i++)
  {

      lcd_WritData(DIS1);

  }
//setPosition(1,0);
//writeString(datas1);

}

void loop() {
  // put your main code here, to run repeatedly:

}