ST7920控制显示程序-电子工程世界

分享到: 微博; QQ; 微信; LinkedIn

/****************************************************************************************

           LCM（DM12864M-带字库，ST7920控制芯片）mega8控制显示程序

             程序功能：该程序是用AVR来控制对DM12864M
              读写信号等的操作.
             硬件连接：采用串行方式显示,分配PD.3=SID，PD.2=SCK，PB.1=LCD_ON
              三个I/O口分别作为LCM数据，时钟信号,背光开关
        的控制。
        CS和/RESET直接接VCC;PSB直接接GND

****************************************************************************************/

#include
#include
#include
#define LCDDDR        DDRD
#define LCDDDR_IN     LCDDDR&=~BIT(PD3);
#define LCDDDR_OUT    LCDDDR|=BIT(PD0)|BIT(PD3)|BIT(PD2)|BIT(PD1);
/*===============================================================*/
#define LCDCTL      PORTD
#define SID_ON      LCDCTL |= BIT(PD3) //数据
#define SID_OFF     LCDCTL &= ~BIT(PD3)
#define SCK_ON      LCDCTL |= BIT(PD2) //时钟
#define SCK_OFF     LCDCTL &= ~BIT(PD2)
#define LCD_ON      LCDCTL |= BIT(PB1) //开启背光
#define LCD_OFF     LCDCTL &= ~BIT(PB1)
//#define uchar unsigned char
/***********************函数体部分*********************************/
unsigned char AC_TABLE[]={
0x80,0x81,0x82,0x83,0x84,0x85,0x86,0x87,
0x90,0x91,0x92,0x93,0x94,0x95,0x96,0x97,
0x88,0x89,0x8a,0x8b,0x8c,0x8d,0x8e,0x8f,
0x98,0x99,0x9a,0x9b,0x9c,0x9d,0x9e,0x9f,
};
unsigned char str2[]="欢迎光临AVRLCD!!";
unsigned char str1[]="云母屏风烛影深，长河渐落晓星沉。嫦娥应悔偷灵药，碧海青天夜夜心。";
unsigned char bmp1[];//先声明一下就可以把表放在函数后面啦，呵呵
//=========发送一个字节程序=========
void SendByte(unsigned char Dbyte)
{
    unsigned char i;
    for(i=0;i<8;i++)
  {
if(Dbyte&0x80)SID_ON;
  else SID_OFF;
  SCK_ON;
  SCK_OFF;
  Dbyte=Dbyte<<1;
  }
}
//接收一个字节程序((0xf0&temp1)+(0x0f&temp2))
unsigned char ReceiveByte(void)
{
    unsigned char i,temp1,temp2;
    temp1=temp2=0;
    for(i=0;i<8;i++)
    {
     LCDDDR_IN;
  temp1=temp1<<1;
        if ((PINC&0x02)==0)temp1++; //与端口设置有关，主要修改端口时修改此位
    LCDDDR_OUT;
  SCK_ON;
  SCK_OFF;
}
    for(i=0;i<8;i++)
    {
     LCDDDR_IN;
  temp2=temp2<<1;
        if ((PINC&0x02)==0)temp2++; //与端口设置有关，主要修改端口时修改此位
  LCDDDR_OUT;
  SCK_ON;
  SCK_OFF;
    }
        return ((0xf0&temp1)+(0x0f&temp2));
}
//液晶忙检查CheckBusy
void CheckBusy( void )
{
    do SendByte(0xfc);               //11111,RW(1),RS(0),0
    while(0x80&ReceiveByte());
}
//========写命令========
void WriteCommand( unsigned char Cbyte )
{
CheckBusy();
    SendByte(0xf8);                //11111,RW(0),RS(0),0
    SendByte(0xf0&Cbyte);
    SendByte(0xf0&Cbyte<<4);
}
//========写数据========
void WriteData( unsigned char Dbyte )
{
    CheckBusy();
    SendByte(0xfa);             //11111,RW(0),RS(1),0
    SendByte(0xf0&Dbyte);
    SendByte(0xf0&Dbyte<<4);
}
//========读数据========
unsigned char ReadData( void )
{
    CheckBusy();
    SendByte(0xfe);             //11111,RW(1),RS(1),0
    return ReceiveByte();
}
//===延时程序，12M/ms==
void Delay(unsigned int MS)
{
    unsigned char us,usn;
    while(MS!=0)               //for 12M
    {
     usn = 2;
    while(usn!=0)
        {
            us=0xf5;
            while (us!=0){us--;};
            usn--;
        }
        MS--;
    }
}
//=====液晶初始化======
void LcmInit( void )
{
    WriteCommand(0x30); //基本指令，选择8位CPU控制方式，关图显
    WriteCommand(0x03); //复位地址计数器
    WriteCommand(0x0C); //开整体显示
    WriteCommand(0x01); //清除屏显的数据
    WriteCommand(0x06); //设置地址计数器递增
}
//=======清文字========
void LcmClearTXT( void )
{
    LcmInit();
}
//=======清图片========
void LcmClearBMP( void )
{
    unsigned char i,j;
    WriteCommand(0x34);   //关图显
    for(i=0;i<32;i++)
    {
        WriteCommand(0x80|i); //写入列地址
        WriteCommand(0x80); //写入行地址
        for(j=0;j<32;j++)
        WriteData(0);
    }
//WriteCommand(0x36);//开图显
}
//==写入一段文字，写完一屏，清屏，从头在写新的一屏=======
void PutStr(unsigned char row,unsigned char col,unsigned char *puts)
{
    WriteCommand(0x30);     //基本指令，选择8位CPU控制方式，关图显
    WriteCommand(AC_TABLE[8*row+col]);
    while(*puts != '\0')
    {
        if(col==8)
        {
            col=0;
            row++;
        }
        if(row==4) row=0;
        WriteCommand(AC_TABLE[8*row+col]);
        WriteData(*puts);  //一个汉字的ASC码是一个16位的，所以要写入两个字节
        puts++;
        WriteData(*puts);
        puts++;
        col++;
}
}
//========写入一屏图片128*64=======
void PutBMP(unsigned char *puts)
{
    unsigned char x,y,i,j,k;
x=0x80;
WriteCommand(0x34);     //关图显
    for(k=0;k<2;k++)
{
     y=0x80;
  for(j=0;j<32;j++)
  {
      WriteCommand(y); //写入列地址
            WriteCommand(x); //写入行地址
            for(i=0;i<16;i++)
   {
    WriteData(*(puts++));
   }
   y++;
  }
  x=0x88;
}
WriteCommand(0x36);   //开图显
}

//===========主函数===========
void main( void )
{
    LcmInit();
    Delay(10);
    PORTB=0xff;
    LCD_ON;
while(1)
    {
  PutStr(1,0,str2);
        Delay(10000);

  LcmClearTXT();
  Delay(10);

  PutStr(0,0,str1);
        Delay(10000);

  LcmClearTXT();
  Delay(10);

  PutBMP(bmp1);
        Delay(10000);

  LcmClearBMP();

    }
}
//==============================================================================
unsigned char bmp1[]={/*生日蛋糕*/
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xC0,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x06,0x00,0x01,0x20,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x19,0x80,0x07,0x38,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x06,0x00,0x00,0xC0,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xC0,0x00,0x00,0x04,0x00,0x00,0x40,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x0C,0x00,0x00,0xC0,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x78,0x00,0x00,0xC0,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x80,0x10,0x40,0x00,0x00,0xC0,0x00,0x01,0xC0,
0x00,0x00,0x00,0x00,0x00,0x00,0x7F,0x80,0x10,0x40,0x00,0x03,0x98,0x00,0x01,0xC0,
0x00,0x00,0x12,0x00,0x00,0x00,0x40,0x80,0x11,0xF0,0x00,0x01,0x08,0x00,0x03,0x80,
0x00,0x00,0x13,0x00,0x00,0x30,0x40,0x80,0x10,0x50,0x06,0x01,0x08,0x00,0x03,0x80,
0x00,0x00,0x11,0x00,0x00,0x48,0x40,0x80,0x10,0x50,0x19,0x83,0xFF,0x80,0x03,0x00,
0x00,0x00,0x17,0x80,0x01,0xCE,0x40,0x80,0x5B,0xFC,0x06,0x00,0x08,0x00,0x07,0x00,
0x00,0x00,0x1F,0xE0,0x00,0x30,0x7F,0x80,0xD4,0x80,0x00,0x00,0x08,0x00,0x06,0x00,
0x00,0x00,0x11,0x00,0x00,0x30,0x40,0x80,0x91,0xA0,0x00,0x00,0xC9,0x00,0x00,0x00,
0x00,0x00,0x31,0x00,0x00,0x00,0x40,0x80,0x11,0x30,0x00,0x01,0x89,0x80,0x04,0x00,
0x00,0x00,0x67,0xC0,0x00,0x00,0x40,0x80,0x13,0x18,0x00,0x03,0x08,0xC0,0x0E,0x00,
0x00,0x00,0xC1,0x00,0x00,0x00,0x40,0x80,0x16,0x0C,0x00,0x02,0x08,0x60,0x0E,0x00,
0x00,0x00,0x01,0x00,0x00,0x00,0x7F,0x80,0x14,0x04,0x00,0x00,0x78,0x00,0x04,0x00,
0x00,0x00,0x01,0x00,0x00,0x00,0x41,0x80,0x10,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x7F,0xFC,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x08,0x00,0x0E,0x00,0x00,0x00,0x00,0xC0,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x1B,0x00,0x00,0x00,0x01,0xF0,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x1B,0x80,0x00,0x00,0x01,0x30,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x34,0xC0,0x03,0x00,0x07,0x5C,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x31,0xC0,0x03,0x80,0x06,0x18,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x39,0xC0,0x06,0xC0,0x02,0x98,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x0F,0x00,0x0C,0xC0,0x03,0xF0,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x06,0x00,0x18,0x70,0x00,0x40,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x1F,0xF8,0x2C,0x28,0x3D,0xF0,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x1F,0x86,0xCC,0x66,0xC3,0xF1,0x80,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x06,0x3F,0x81,0x06,0xC1,0x81,0xFE,0xE0,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x19,0xDF,0xFF,0xFF,0xFF,0xFF,0xF7,0x30,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x61,0xDF,0x80,0x07,0xC0,0x01,0xFC,0x0C,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0xF1,0x1F,0x80,0x07,0xC0,0x01,0xF0,0x1F,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x03,0x1C,0x0F,0x00,0x07,0xC0,0x00,0xE0,0x71,0x80,0x00,0x00,0x00,
0x00,0x00,0x00,0x03,0x1E,0x00,0x00,0x03,0x80,0x00,0x00,0xC1,0x80,0x00,0x00,0x00,
0x00,0x00,0x00,0x01,0xE3,0x1E,0x00,0x00,0x00,0x00,0x71,0x0F,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x03,0x30,0xE3,0x38,0x38,0x38,0x39,0x8E,0x19,0x80,0x00,0x00,0x00,
0x00,0x00,0x00,0x01,0x0F,0xC3,0xC6,0xC6,0xC6,0xC7,0x07,0xF1,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x03,0x00,0x3F,0x01,0x81,0x01,0x01,0xF8,0x01,0x80,0x00,0x00,0x00,
0x00,0x00,0x00,0x01,0xC0,0x00,0xFF,0xFF,0xFF,0xFE,0x00,0x07,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x03,0x38,0x00,0x00,0x00,0x00,0x00,0x00,0x39,0x80,0x00,0x00,0x00,
0x00,0x00,0x00,0x01,0x87,0xC0,0x00,0x00,0x00,0x00,0x07,0xC1,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x03,0x00,0x3F,0xC0,0x00,0x00,0x07,0xF8,0x09,0x80,0x00,0x00,0x00,
0x00,0x00,0x00,0x01,0xF0,0x00,0x7F,0xFF,0xFF,0xF8,0x04,0x2F,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x03,0x1E,0x22,0x00,0x04,0x10,0x04,0x40,0xF1,0x80,0x00,0x00,0x00,
0x00,0x00,0x00,0x1F,0x03,0xC0,0x20,0x40,0x84,0x80,0x07,0x01,0xF0,0x00,0x00,0x00,
0x00,0x00,0x00,0x23,0x00,0x3F,0xF2,0x08,0x00,0x47,0xFC,0x01,0x88,0x00,0x00,0x00,
0x00,0x00,0x00,0xC1,0x00,0x00,0x1F,0xFF,0xFF,0xFC,0x00,0x01,0x06,0x00,0x00,0x00,
0x00,0x00,0x00,0xC0,0xE0,0x00,0x00,0x00,0x00,0x00,0x00,0x0E,0x06,0x00,0x00,0x00,
0x00,0x00,0x00,0xC4,0x1E,0x00,0x00,0x00,0x00,0x00,0x00,0xF0,0x06,0x00,0x00,0x00,
0x00,0x00,0x00,0xC0,0x01,0xF0,0x00,0x00,0x00,0x00,0x0F,0x00,0x42,0x00,0x00,0x00,
0x00,0x00,0x00,0x30,0x60,0x1F,0xC0,0x00,0x00,0x07,0xF0,0x1C,0x1C,0x00,0x00,0x00,
0x00,0x00,0x00,0x1F,0xC0,0x00,0x3F,0xFF,0xFF,0xF8,0x00,0x07,0xF0,0x00,0x00,0x00,/*
0x00,0x00,0x00,0x00,0xC2,0x00,0x00,0x00,0x00,0x00,0x00,0x86,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0xC0,0x18,0x00,0x00,0x00,0x00,0x30,0x06,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x30,0x78,0x00,0xC1,0x06,0x08,0x38,0x18,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x1F,0xCC,0x00,0xE0,0x06,0x00,0x37,0xE0,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x06,0x13,0x38,0x59,0x82,0xC0,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x03,0xFE,0x0F,0xF0,0xFF,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*/
};

关键字：ST7920控制显示程序引用地址：ST7920控制显示程序

上一篇：AT24CXX的mega8控制程序
下一篇：AVR的模拟比较器功能实验

推荐阅读最新更新时间：2024-03-16 15:17

基于STC15F2K60S2的内部AD转换程序（1602显示）

第一次学习也是第一次使用STC15F2K60S2进行AD转换，感觉比之前用89c52加AD芯片好用多了，虽然中间走了很多弯路，但是最终还是成功了，分享给那些和我一样刚学习单片机的童鞋们，希望能够帮到你们！单片机源程序如下: #include STC15F2K60S2.h #include ADC.h unsigned int ADC_DATE1,ADC_DATE2; bit flag; void delay(unsigned int sec) //延时函数 { while(sec--); } void Init_ADC() //ADC初始化 { P1ASF=0X80;

[单片机]

液晶显示控制器ST7920的接口方式研究与编程

1 引言　　ST7920是台湾矽创电子公司生产的中文图形液晶控制器，可作为控制器和驱动器捉供32路com 输出和64路seg输出。与驱动器ST7921组成的模块最多可驱动256×32点阵液晶，主要用于显示汉字及图形，其内置了2 MB中文字型ROM(CGROM)，共提供8192个中文字型(16×16点阵)；16KB半宽字型ROM(HCGROM)，共提供126个西文字型(16×8点阵)；64×16位字符显示RAM(DDRAM最多16字符×4行，LCD显示范围16×2行)；64×16位字符产生RAM(CGRAM)；15×16位共240点的ICON RAM(ICONRAM)。此外，为了适应多种微处理器与单片机接口需求，该模块还可

[模拟电子]

51单片机驱动1602液晶显示器c程序

/* 程序效果：单片机控制液晶显示器1602显示字母数字，用户自行更改io 程序版权：http://www.51hei.com */ #include reg52.h //头文件 #define uchar unsigned char //宏定义 #define uint unsigned int uchar code table ="51HEI XING XING " ; //显示的字母 uchar code table1 ="51HEI MCU XUE YUAU" ; sbit lcdrs=P1^0; //寄存器选择引脚 sbit lcdwr=P1^1; //读写引脚 sbit lcde=P1^2; //片选引脚 void de

[单片机]

MSP430单片机控制lcd1602显示C程序

//MSP430写的1602液晶显示程序2011/8/26//硬件连接 //P4 数据口 P3.7---E P3.6---RW P3.5----RS #include msp430x14x.h #define uint unsigned int #define rw(x) P3OUT=(P3OUT&(~BIT6))|(x?BIT6:0); unsigned char table0 = hankouxueyuan ; unsigned char table1 = dianzisheji ; //**************延时**************************

[单片机]

基于AVR的4*4矩阵键盘扫描与LED显示程序

/************** 此程序在别人的基础上进行了一些修改，能应用到我的开发板中，并与我自制的外接按键和LED灯配合使用，在此感谢原创者！！！硬件：M16 作用：当按下按键时显示相对应的按键控制的LED灯频率：8.000000MHZ 开发板：EasyAVR M16 v12 编译软件：ICCAVR6.31A 下载软件：AVRstudio4.14 编写人：伍建忠编写日期：2011.10.14 修改日期： ************/ #include iom16v.h #include macros.h #define uchar unsigned char #define uint unsigned int uint

[单片机]

能显示温度及时间(能调时闹时)的bascom-avr程序

$regfile = m16def.dat $crystal = 8000000 Config Lcdpin = Pin , Db4 = Portc.4 , Db5 = Portc.5 , Db6 = Portc.6 , Db7 = Portc.7 , E = Portc.2 , Rs = Portc.0 Config Lcd = 16 * 2 Config 1wire = Porta.0 '************************************************* Dim Id(8) As Byte Dim I As Byte Dim C(2) As Byte Dim T As Word

[单片机]

基于单片机的AD转换的数码管显示程序

*本例程采用AD0804芯片，硬件电路：cs片选端接P2.3，WR写数据端写P3.6，RD读数据端接P3.7，锁存端接P2.6脚，数码管位选端分别接P3.2 ，P3.3，P3.4，段选端接P1口*/ #include reg52.h //头文件 #define uint unsigned int//宏文件 #define uchar unsigned char//宏文件 uchar num;//变量 void delay3(uint z);//延时定义 void dissy();//延时函数定义 sbit ge=P3^2;//个位定义 sbit shi=P3^3;//十位定义 sbit bai=P3^4;//百位定义 sbit a

[单片机]

单片机P1口高四位做按键,低四位做输出显示程序

;有对应的C51程序 ;本程序主要是初步体现基于单片机的按键的设计， ;用P1口的低八位发光二极管显示，只是为了显示实验结果 ;2007-06-05 org 0000h ljmp start org 0060h start: mov a,#0f0h ;准备给P1口高四位置高，做输入 mov p1,a ;给P1口高四位置高 mov a,p1

[单片机]