怎么用LCD1602显示特殊字符

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caowei|

楼主 | 2012-2-2 22:59 | 只看该作者回帖奖励

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LCD1602显示, AN, COM, command, dc

显示特殊字符时候（天线形式）其他区域也回出现乱点，不知道怎么解决？？？
源程序如下（主函数）：
#include <hidef.h>
#include "derivative.h"
#include "LLD_LCD.h"
#include "LLD_KEY.h"
void PerphInit()
{
  SOPT1 = 0x00;    //关闭看门狗
  MCGC1 = 0xB8;
  MCGC1_IRCLKEN = 1;  //开启参考时钟，TRIM微调量没有设置
  MCGC2 = 0x36;
  MCGC3 = 0x00;    //PLLS=0
  while(!(MCGSC&0x02));
}
void tianxian(void)//显示天线形
  {
      LcdCommand(0x36);

   LcdCommand(0x80);//垂直地址范围
   LcdCommand(0x80);//水平地址范围
   LcdDataWrite(0x80);

      LcdCommand(0x81);//垂直地址范围
   LcdCommand(0x80);//水平地址范围
   LcdDataWrite(0x2a);

      LcdCommand(0x82);//垂直地址范围
      LcdCommand(0x80);//水平地址范围
      LcdDataWrite(0x1c);

      LcdCommand(0x83);//垂直地址范围
      LcdCommand(0x80);//水平地址范围
      LcdDataWrite(0x08);

      LcdCommand(0x84);//垂直地址范围
      LcdCommand(0x80);//水平地址范围
      LcdDataWrite(0x08);

      LcdCommand(0x85);//垂直地址范围
      LcdCommand(0x80);//水平地址范围
      LcdDataWrite(0x08);

      LcdCommand(0x86);//垂直地址范围
      LcdCommand(0x80);//水平地址范围
      LcdDataWrite(0x08);

      LcdCommand(0x87);//垂直地址范围
      LcdCommand(0x80);//水平地址范围
      LcdDataWrite(0x08);

      LcdCommand(0x88);//垂直地址范围
      LcdCommand(0x80);//水平地址范围
      LcdDataWrite(0x08);

      LcdCommand(0x88);//垂直地址范围
      LcdCommand(0x70);//水平地址范围
      LcdDataWrite(0x07);*/
      }
//======主函数=====
void main(void)
{
      PerphInit(); //外围初始化
   LCD_Init();    //液晶...
   EnableInterrupts;
   CLR_Screen();
   while(1)
   { uchar key = 0x00;  //按键标志符赋初值
      do {
                  key = Get_Key(); //读取按键
         }while(!key);

            switch(key)
         {
            case UP:
               CLR_Screen();
               DisplayChar(0,0,"发送中...");
               break;
            case DOWN:
               CLR_Screen();
               DisplayChar(0,0,"接收中...");
                  break;
            case BACK:
               tianxian();    //天线字形
         Delay(1000);
               break;
            default:
                     break;
            } //end switch
   }//end while
}

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怎么用LCD1602显示特殊字符

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