仿真LCD12864咋就点不亮呢？电路图应该没有问题吧

ID:706567 · 发表于 2021-1-16 15:49

电路图应该没有问题吧，这个12864就是搞不亮？
在网上找个了程序该不该就是点不亮。
#include <reg51.h>
#define LCDLCDDisp_Off 0x3e
#define LCDLCDDisp_On 0x3f
#define Page_Add    0xb8//页地址
#define LCDCol_Add    0x40//列地址
#define Start_Line    0xC0//行地址
/*****液晶显示器的端口定义*****/
#define data_ora P0 /*液晶数据总线*/
sbit LCDMcs=P2^4 ; /*片选1*/
sbit LCDScs=P2^3 ; /*片选2*/
sbit LCDDi=P2^2 ;    /*数据/指令选择*/
sbit LCDRW=P2^1 ;    /*读/写选择*/
sbit LCDEnable=P2^0 ;    /*读/写使能*/

unsigned char code Bmp1[]=
{

0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x20,0x20,0x24,0x24,0x24,0xE4,0x24,0x20,0x20,0xFE,0x20,0x24,0x28,0x20,
0x00,0x20,0xC2,0x0C,0x80,0x60,0x04,0x7C,0x84,0x04,0x04,0xC4,0x3E,0x04,0x00,0x00,
0x88,0x88,0xF8,0x88,0x88,0x00,0xFC,0x24,0x24,0xFC,0x24,0x24,0xFE,0x04,0x00,0x00,
0x08,0x08,0x08,0x08,0x08,0xF8,0x08,0x08,0x08,0x08,0x0C,0x08,0x00,0x00,0x20,0x20,
0x20,0x20,0x20,0x20,0xFE,0x20,0x20,0x20,0x20,0x20,0x30,0x20,0x00,0x40,0x30,0x10,
0x52,0x5C,0x50,0x52,0x5C,0x50,0xD8,0x56,0x10,0x50,0x30,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x20,0x60,0x3F,0x20,0x20,0x1F,0x12,0x12,0x10,0x07,0x18,0x20,0x40,0x78,
0x00,0x04,0x04,0x7E,0x41,0x40,0x20,0x10,0x0B,0x04,0x0B,0x10,0x20,0x60,0x20,0x00,
0x10,0x30,0x1F,0x08,0x48,0x40,0x4B,0x49,0x49,0x7F,0x49,0x49,0x6B,0x40,0x08,0x20,
0x20,0x20,0x20,0x20,0x20,0x3F,0x20,0x20,0x20,0x20,0x20,0x30,0x20,0x00,0x40,0x40,
0x20,0x10,0x08,0x06,0x01,0x02,0x04,0x08,0x10,0x20,0x60,0x20,0x00,0x04,0x04,0x04,
0x04,0x04,0x24,0x44,0x3F,0x05,0x04,0x04,0x04,0x06,0x04,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00
};
unsigned char code Bmp2[]=
{

0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x80,0x40,0xF0,0x0E,0x00,0x28,0x28,0x28,0x2A,0x2C,0x28,0x28,0x28,0x08,0x00,
0x00,0x00,0x00,0xF8,0xA8,0xAC,0xAA,0xA8,0xA8,0xA8,0xFC,0x08,0x00,0x00,0x00,0x00,
0x08,0x08,0x08,0x08,0x08,0xF8,0x08,0x08,0x08,0x08,0x0C,0x08,0x00,0x00,0x20,0x24,
0xA4,0xFC,0x26,0x24,0x00,0x7C,0x24,0x24,0x24,0x24,0x7C,0x00,0x00,0x40,0x30,0x10,
0x52,0x5C,0x50,0x52,0x5C,0x50,0xD8,0x56,0x10,0x50,0x30,0x00,0x00,0xFC,0x04,0x64,
0x9C,0x20,0x58,0x48,0x4A,0x4C,0x48,0x48,0x18,0x08,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x7F,0x00,0x00,0x01,0x7D,0x25,0x25,0x25,0x25,0x7D,0x01,0x00,0x00,
0x00,0x20,0x18,0x03,0x3A,0x42,0x46,0x5A,0x42,0x42,0x73,0x00,0x08,0x30,0x00,0x20,
0x20,0x20,0x20,0x20,0x20,0x3F,0x20,0x20,0x20,0x20,0x20,0x30,0x20,0x00,0x08,0x06,
0x01,0x7F,0x01,0x42,0x49,0x49,0x49,0x7F,0x49,0x49,0x49,0x41,0x00,0x04,0x04,0x04,
0x04,0x04,0x24,0x44,0x3F,0x05,0x04,0x04,0x04,0x06,0x04,0x00,0x00,0x7F,0x04,0x08,
0x47,0x41,0x21,0x1F,0x01,0x01,0x3F,0x41,0x41,0x79,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00
};
unsigned char code Bmp3[]=
{

0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x40,0x42,
0xCC,0x00,0x00,0xF4,0x54,0x5C,0xF4,0x5C,0x56,0xF4,0x00,0x00,0x00,0x80,0x40,0xF0,
0x0E,0x00,0x28,0x28,0x28,0x2A,0x2C,0x28,0x28,0x28,0x08,0x00,0x00,0x08,0x08,0x08,
0x08,0x08,0xF8,0x08,0x08,0x08,0x08,0x0C,0x08,0x00,0x00,0x20,0x24,0xA4,0xFC,0x26,
0x24,0x00,0x7C,0x24,0x24,0x24,0x24,0x7C,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x20,0x10,
0x0F,0x10,0x20,0x5F,0x42,0x42,0x5F,0x42,0x52,0x5F,0x40,0x40,0x00,0x00,0x00,0x7F,
0x00,0x00,0x01,0x7D,0x25,0x25,0x25,0x25,0x7D,0x01,0x00,0x00,0x20,0x20,0x20,0x20,
0x20,0x20,0x3F,0x20,0x20,0x20,0x20,0x20,0x30,0x20,0x00,0x08,0x06,0x01,0x7F,0x01,
0x42,0x49,0x49,0x49,0x7F,0x49,0x49,0x49,0x41,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00
};
unsigned char code Bmp4[]=
{

0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xC0,0x20,0x10,0x10,0x20,0xC0,0x00,0x00,0xC0,
0x20,0x10,0x10,0x30,0x00,0x00,0x00,0xC0,0x20,0x10,0x10,0x20,0xC0,0x00,0x00,0xC0,
0x20,0x10,0x10,0x30,0x00,0x00,0x44,0x44,0xFC,0x44,0x04,0xC0,0x00,0xFE,0x84,0x84,
0xFC,0x84,0x84,0x84,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x0F,0x10,0x20,0x20,0x10,0x0F,0x00,0x00,0x1F,
0x22,0x21,0x21,0x21,0x1E,0x00,0x00,0x0F,0x10,0x20,0x20,0x10,0x0F,0x00,0x00,0x1F,
0x22,0x21,0x21,0x21,0x1E,0x00,0x10,0x10,0x0F,0x48,0x28,0x11,0x08,0x27,0x20,0x20,
0x3F,0x20,0x20,0x20,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00
};
/****************************************************************************
函数功能:LCD延时程序
入口参数:t
出口参数:
****************************************************************************/
void LCDdelay(unsigned int t)
{
      unsigned int i,j;
      for(i=0;i<t;i++);
      for(j=0;j<10;j++);
}
/****************************************************************************
状态检查，LCD是否忙

*****************************************************************************/
void CheckState()
{
unsigned char dat,DATA;//状态信息（判断是否忙）
LCDDi=0; // 数据\指令选择，D/I（RS）="L" ，表示 DB7∽DB0 为显示指令数据
LCDRW=1; //R/W="H" ，E="H"数据被读到DB7∽DB0
do
{
   DATA=0x00;
   LCDEnable=1;       //EN下降源
      LCDdelay(2);//延时
      dat=DATA;
   LCDEnable=0;
   dat=0x80 & dat; //仅当第7位为0时才可操作(判别busy信号)
}
while(!(dat==0x00));
}
/*****************************************************************************
函数功能:写命令到LCD程序，RS(DI)=L,RW=L,EN=H，即来一个脉冲写一次
入口参数:cmdcode
出口参数:
*****************************************************************************/
void write_com(unsigned char cmdcode)
{
CheckState();//检测LCD是否忙
      LCDDi=0;
      LCDRW=0;
      P1=cmdcode;
      LCDdelay(2);
      LCDEnable=1;
      LCDdelay(2);
      LCDEnable=0;
}
/*****************************************************************************
函数功能:LCD初始化程序
入口参数:
出口参数:
*****************************************************************************/
void init_lcd()
{
      LCDdelay(100);
      LCDMcs=1;//刚开始关闭两屏
      LCDScs=1;
      LCDdelay(100);
      write_com(LCDLCDDisp_Off);       //写初始化命令
      write_com(Page_Add+0);
      write_com(Start_Line+0);
      write_com(LCDCol_Add+0);
      write_com(LCDLCDDisp_On);
}
/*****************************************************************************
函数功能:写数据到LCD程序，RS(DI)=H,RW=L,EN=H，即来一个脉冲写一次
入口参数:LCDDispdata
出口参数:
*****************************************************************************/
void write_data(unsigned char LCDDispdata)
{
CheckState();//检测LCD是否忙
      LCDDi=1;
      LCDRW=0;
      P1=LCDDispdata;
      LCDdelay(2);
      LCDEnable=1;
      LCDdelay(2);
      LCDEnable=0;
}
/*****************************************************************************
函数功能:清除LCD内存程序
入口参数:pag,col,hzk
出口参数:
*****************************************************************************/
void Clr_Scr()
{
      unsigned char j,k;
      LCDMcs=0; //左、右屏均开显示
      LCDScs=0;
      write_com(Page_Add+0);
      write_com(LCDCol_Add+0);
      for(k=0;k<8;k++)//控制页数0-7，共8页
      {
            write_com(Page_Add+k); //每页每页进行写
               for(j=0;j<64;j++)  //每页最多可写32个中文文字或64个ASCII字符
            {
                  write_com(LCDCol_Add+j);
                     write_data(0x00);//控制列数0-63，共64列，写点内容，列地址自动加1
            }
      }
}
/*****************************************************************************
函数功能:左屏位置显示
入口参数:page,column,hzk
出口参数:
*****************************************************************************/
void Bmp_Left_Disp(unsigned char page,unsigned char column, unsigned char code *Bmp)
{
      unsigned char j=0,i=0;
      for(j=0;j<2;j++)
      {
            write_com(Page_Add+page+j);
            write_com(LCDCol_Add+column);
            for(i=0;i<64;i++)
                     write_data(Bmp[128*j+i]);
      }
}
/*****************************************************************************
函数功能:右屏位置显示
入口参数:page,column,hzk
出口参数:
*****************************************************************************/
void Bmp_Right_Disp(unsigned char page,unsigned char column, unsigned char code *Bmp)
{
      unsigned char j=0,i=0;
      for(j=0;j<2;j++)
      {
            write_com(Page_Add+page+j);
            write_com(LCDCol_Add+column);
            for(i=64;i<128;i++)
                     write_data(Bmp[128*j+i]);
      }
}

void main()
{
      init_lcd();
      Clr_Scr();
      LCDMcs=0; //左屏开显示
      LCDScs=1;
      Bmp_Left_Disp(0,0,Bmp1);// Bmp1为某个汉字的首地址
Bmp_Left_Disp(2,0,Bmp2);
Bmp_Left_Disp(4,0,Bmp3);
Bmp_Left_Disp(6,0,Bmp4);
LCDMcs=1; //右屏开显示
      LCDScs=0;
Bmp_Right_Disp(0,0,Bmp1);
Bmp_Right_Disp(2,0,Bmp2);
Bmp_Right_Disp(4,0,Bmp3);
Bmp_Right_Disp(6,0,Bmp4);
      while(1)
{

      }
         }

ID:706567 · 发表于 2021-1-16 15:52

那位大神帮我写个简单的测试程序。

ID:390416 · 发表于 2021-1-17 08:22

你好，你可以看看我分享的贴子先把手册看懂http://www.51hei.com/bbs/dpj-200462-1.html

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仿真LCD12864咋就点不亮呢？电路图应该没有问题吧

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