单片机+LCD12864数字电压表设计含源代码、proteus仿真工程文件

ID:838457 · 发表于 2020-11-3 20:18

附件包括数字电压表的单片机源代码
proteus仿真工程文件
都是自己在网上找的资料，请大家多多指教

仿真原理图如下（proteus仿真工程文件可到本帖附件中下载）

单片机源程序如下:

//---库函数声明及相关定义---//
#include <reg51.h>
#include <intrins.h>
#define unint unsigned int
#define unchar unsigned char
#define Databus P1 /*液晶数据总线*/
sbit RS=P3^3; /*数据\指令选择*/
sbit RW=P3^4; /*读\写选择*/
sbit EN=P3^2; /*读\写使能*/
sbit cs1=P3^6; /*片选1*/
sbit cs2=P3^7; /*片选2*/
sbit clock=P0^4;//时钟线
sbit dout=P0^2;//数据输出端
sbit cs=P0^3;//片选（低电平有效）
sbit DQ=P0^2;//ds18b20与单片机连接口
float f_temp;//浮点型温度值
unsigned int tvalue;//温度值
unsigned char tflag;
unsigned int temp=0;
unsigned char SegBuf[4]={0};
/********************************/
/* 定义中文字库 */
/********************************/
unchar code Hzk[]={
0x40,0x20,0x10,0x0C,0xE3,0x22,0x22,0x22,0xFE,0x22,0x22,0x22,0x22,0x02,0x00,0x00, //年//0
0x04,0x04,0x04,0x04,0x07,0x04,0x04,0x04,0xFF,0x04,0x04,0x04,0x04,0x04,0x04,0x00,
0x00,0x00,0x00,0x00,0x00,0xFF,0x11,0x11,0x11,0x11,0x11,0xFF,0x00,0x00,0x00,0x00,//月//1
0x00,0x40,0x20,0x10,0x0C,0x03,0x01,0x01,0x01,0x21,0x41,0x3F,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0xFE,0x42,0x42,0x42,0x42,0x42,0x42,0x42,0xFE,0x00,0x00,0x00,0x00,//日//2
0x00,0x00,0x00,0x3F,0x10,0x10,0x10,0x10,0x10,0x10,0x10,0x3F,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0xBE,0x2A,0x2A,0x2A,0xEA,0x2A,0x2A,0x2A,0x2A,0x3E,0x00,0x00,0x00,//星//3
0x00,0x48,0x46,0x41,0x49,0x49,0x49,0x7F,0x49,0x49,0x49,0x49,0x49,0x41,0x40,0x00,
0x00,0x04,0xFF,0x54,0x54,0x54,0xFF,0x04,0x00,0xFE,0x22,0x22,0x22,0xFE,0x00,0x00,//期//4
0x42,0x22,0x1B,0x02,0x02,0x0A,0x33,0x62,0x18,0x07,0x02,0x22,0x42,0x3F,0x00,0x00,
0x00,0xFC,0x44,0x44,0x44,0xFC,0x10,0x90,0x10,0x10,0x10,0xFF,0x10,0x10,0x10,0x00,//时//5
0x00,0x07,0x04,0x04,0x04,0x07,0x00,0x00,0x03,0x40,0x80,0x7F,0x00,0x00,0x00,0x00,
0x80,0x40,0x20,0x98,0x87,0x82,0x80,0x80,0x83,0x84,0x98,0x30,0x60,0xC0,0x40,0x00,//分//6
0x00,0x80,0x40,0x20,0x10,0x0F,0x00,0x00,0x20,0x40,0x3F,0x00,0x00,0x00,0x00,0x00,
0x12,0x12,0xD2,0xFE,0x91,0x11,0xC0,0x38,0x10,0x00,0xFF,0x00,0x08,0x10,0x60,0x00,//秒//7
0x04,0x03,0x00,0xFF,0x00,0x83,0x80,0x40,0x40,0x20,0x23,0x10,0x08,0x04,0x03,0x00,
0x00,0x40,0x42,0x42,0x42,0x42,0x42,0xFE,0x42,0x42,0x42,0x42,0x42,0x42,0x40,0x00,//天//8
0x00,0x80,0x40,0x20,0x10,0x08,0x06,0x01,0x02,0x04,0x08,0x10,0x30,0x60,0x20,0x00,
0x00,0xC0,0xC0,0xC0,0xC0,0xC0,0xC0,0xC0,0xC0,0xC0,0xC0,0xC0,0xC0,0xC0,0xC0,0x00,//一//9
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x04,0x04,0x04,0x04,0x04,0x04,0x04,0x04,0x04,0x06,0x04,0x00,0x00,0x00,//二//10
0x00,0x10,0x10,0x10,0x10,0x10,0x10,0x10,0x10,0x10,0x10,0x10,0x10,0x18,0x10,0x00,
0x00,0x04,0x84,0x84,0x84,0x84,0x84,0x84,0x84,0x84,0x84,0x84,0x84,0x04,0x00,0x00,//三//11
0x00,0x20,0x20,0x20,0x20,0x20,0x20,0x20,0x20,0x20,0x20,0x20,0x20,0x20,0x20,0x00,
0x00,0xFE,0x02,0x02,0x02,0xFE,0x02,0x02,0xFE,0x02,0x02,0x02,0x02,0xFE,0x00,0x00,//四//12
0x00,0x7F,0x28,0x24,0x23,0x20,0x20,0x20,0x21,0x22,0x22,0x22,0x22,0x7F,0x00,0x00,
0x00,0x02,0x82,0x82,0x82,0x82,0xFE,0x82,0x82,0x82,0xC2,0x82,0x02,0x00,0x00,0x00,//五//13
0x20,0x20,0x20,0x20,0x20,0x3F,0x20,0x20,0x20,0x20,0x3F,0x20,0x20,0x30,0x20,0x00,
0x10,0x10,0x10,0x10,0x10,0x91,0x12,0x1E,0x94,0x10,0x10,0x10,0x10,0x10,0x10,0x00,//六//14
0x00,0x40,0x20,0x10,0x0C,0x03,0x01,0x00,0x00,0x01,0x02,0x0C,0x78,0x30,0x00,0x00,
0x00,0x40,0x42,0x44,0x4C,0x40,0x40,0x7F,
0x40,0x40,0x48,0x44,0xE6,0x40,0x00,0x00,
0x00,0x40,0x44,0x44,0x44,0x44,0x44,0x44,
0x44,0x44,0x44,0x44,0xFF,0x00,0x00,0x00,//当//15
0x08,0x08,0xE8,0x29,0x2A,0x2E,0xE8,0x08,
0x08,0xCC,0x0A,0x0B,0xE8,0x0C,0x08,0x00,
0x00,0x00,0xFF,0x09,0x49,0x89,0x7F,0x00,
0x00,0x0F,0x40,0x80,0x7F,0x00,0x00,0x00,//前//16
0x00,0xF8,0x48,0x48,0x48,0x48,0xFF,0x48,//电//17
0x48,0x48,0x48,0xFC,0x08,0x00,0x00,0x00,
0x00,0x07,0x02,0x02,0x02,0x02,0x3F,0x42,
0x42,0x42,0x42,0x47,0x40,0x70,0x00,0x00,
0x00,0x00,0xFE,0x02,0x82,0x82,0x82,0x82,
0xFE,0x82,0x82,0x82,0xC3,0x82,0x00,0x00,
0x40,0x30,0x0F,0x40,0x40,0x40,0x40,0x40,
0x7F,0x40,0x42,0x44,0x4C,0x60,0x40,0x00,//压//18
0x00,0x00,0x00,0x00,0x7F,0x49,0x49,0x49,
0x49,0x49,0x7F,0x00,0x00,0x80,0x00,0x00,
0x01,0x81,0x41,0x21,0x1D,0x21,0x41,0x7F,
0x89,0x89,0x8D,0x89,0x81,0xC1,0x41,0x00,//是//19
0x00,0x00,0x00,0x00,0x80,0xC0,0xC0,0x80,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x31,0x7B,0x7B,0x31,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,//://20
0x80,0x40,0x20,0xF8,0x27,0x20,0x20,0x20,//伏//21
0x20,0xFF,0x20,0x24,0x28,0x38,0x20,0x00,
0x00,0x00,0x00,0xFF,0x80,0x40,0x20,0x18,
0x06,0x01,0x06,0x18,0x60,0xC0,0x40,0x00
};
/****************************************/
/* 定义ASCII字库8列*16行 */
/****************************************/
unchar code Ezk[]={
/*此字体下对应的点阵为：宽x高=8x16 --*/
/*-- 宋体12; 此字体下对应的点阵为：宽x高=8x16 --*/
0x00,0x00,0xF0,0xF8,0x08,0x68,0xF8,0xF0,0x00,0x00,0x07,0x0F,0x0B,0x08,0x0F,0x07, //0
0x00,0x20,0x20,0x30,0xF8,0xF8,0x00,0x00,0x00,0x00,0x00,0x00,0x0F,0x0F,0x00,0x00, //1
0x00,0x30,0x38,0x08,0x88,0xF8,0x70,0x00,0x00,0x0C,0x0E,0x0B,0x09,0x08,0x08,0x00, // 2
0x00,0x30,0x38,0x88,0x88,0xF8,0x70,0x00,0x00,0x06,0x0E,0x08,0x08,0x0F,0x07,0x00, //3
0x00,0x00,0xF8,0xF8,0x00,0xE0,0xE0,0x00,0x00,0x03,0x03,0x02,0x02,0x0F,0x0F,0x02,//4
0x00,0xF8,0xF8,0x88,0x88,0x88,0x08,0x00,0x00,0x08,0x08,0x08,0x0C,0x07,0x03,0x00,//5
0x00,0xC0,0xE0,0x78,0x58,0xC8,0x80,0x00,0x00,0x07,0x0F,0x08,0x08,0x0F,0x07,0x00,//6
0x00,0x08,0x08,0x88,0xE8,0x78,0x18,0x00,0x00,0x00,0x0E,0x0F,0x01,0x00,0x00,0x00,//7
0x00,0x70,0xF8,0xC8,0x88,0xF8,0x70,0x00,0x00,0x07,0x0F,0x08,0x09,0x0F,0x07,0x00,//8
0x00,0xF0,0xF8,0x08,0x08,0xF8,0xF0,0x00,0x00,0x00,0x09,0x0D,0x0F,0x03,0x01,0x00,//9
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, // - -//10
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x80,0x80,0xE0,0xE0,0x80,0x80,0x00, // -+-//11
0x00,0x00,0x00,0x03,0x03,0x00,0x00,0x00,
0x80,0x80,0x80,0x80,0x80,0x80,0x80,0x00, // ---//12
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, // -.-//13
0x00,0x00,0x00,0x0C,0x0C,0x00,0x00,0x00
};
/*状态检查，LCD是否忙*/
void CheckState()
{
unchar dat; /*状态信息,判断是否忙*/
RS=0; /*数据\指令选择，D/I（RS）=“L” ，表示 DB7∽DB0 为显示指令数据*/
RW=1; /*R/W=“H” ，E=“H”数据被读到DB7∽DB0*/
do{
Databus=0x00;
EN=1; /*EN下降源*/
_nop_(); /*一个时钟延时*/
dat=Databus;
EN=0;
dat=0x80 & dat;/*仅当第7位为0时才可操作(判别busy信号)*/
}while(!(dat==0x00));
}
/*写命令到LCD中*/
SendCommandToLCD(unchar com)
{
CheckState();/*状态检查，LCD是否忙*/
RS=0; /*向LCD发送命令。RS=0写指令，RS=1写数据*/
RW=0; /*R/W=“L” ，E=“H→L”数据被写到 IR 或 DR */
Databus=com; /*com :命令*/
EN=1; /*EN下降沿*/
_nop_();
_nop_();
EN=0;
}
/*设置页 0xb8是页的首地址*/
void SetLine(unchar page)
{
page=0xb8|page; /*1011 1xxx 0<=page<=7 设定页地址--X 0-7,8行为一页64/8=8，共8页*/
SendCommandToLCD(page);
}
/*设定显示开始行，0xc0是行的首地址*/
void SetStartLine(unchar startline)
{
startline=0xc0|startline; /*1100 0000*/
SendCommandToLCD(startline); /*设置从哪行开始：0--63，一般从0 行开始显示*/
}
/*设定列地址--Y 0-63 ，0x40是列的首地址*/
void SetColumn(unchar column)
{
column=column &0x3f; /*column最大值为64，越出 0=<column<=63*/
column= 0x40|column; /*01xx xxxx*/
SendCommandToLCD(column);
}
/*开关显示，0x3f是开显示，0x3e是关显示*/
void SetOnOff(unchar onoff)
{
onoff=0x3e|onoff; /*0011 111x,onoff只能为0或者1*/
SendCommandToLCD(onoff);
}
/*写显示数据 */
void WriteByte(unchar dat)
{
CheckState();/*状态检查，LCD是否忙*/
RS=1; /*RS=0写指令，RS=1写数据*/
RW=0; /*R/W=“L” ，E=“H→L”数据被写到 IR 或 DR */
Databus=dat; /*dat:显示数据*/
EN=1; /*EN下降沿*/
_nop_();
_nop_();
EN=0;
}
/*选择屏幕screen: 0-全屏,1-左屏,2-右屏*/
void SelectScreen(unchar screen)
{
switch(screen)
{
case 0: cs1=0;/*全屏*/
_nop_(); _nop_(); _nop_();
cs2=0;
_nop_(); _nop_(); _nop_();
break;
case 1: cs1=0;/*左屏*/
_nop_(); _nop_(); _nop_();
cs2=1;
_nop_(); _nop_(); _nop_();
break;
case 2: cs1=1;/*右屏*/
_nop_(); _nop_(); _nop_();
cs2=0;
_nop_(); _nop_(); _nop_();
break;
}
}
/*清屏screen: 0-全屏,1-左屏,2-右*/
void ClearScreen(unchar screen)
{
unchar i,j;
SelectScreen(screen);
for(i=0;i<8;i++) /*控制页数0-7，共8页*/
{
SetLine(i);
SetColumn(0);
for(j=0;j<64;j++) /*控制列数0-63，共64列*/
{
WriteByte(0x00); /*写点内容，列地址自动加1*/
}
}
}
/*初始化LCD*/
void InitLCD()
{
CheckState();
SelectScreen(0);
SetOnOff(0); /*关显示*/
SelectScreen(0);
SetOnOff(1); /*开显示*/
SelectScreen(0);
ClearScreen(0); /*清屏*/
SetStartLine(0);/*开始行:0*/
}
/*--------------------------显示全角汉字-----------------------*/
/*选屏参数，pagr选页参数，column选列参数，number选第几汉字输出*/
/*ss=1右屏2左屏，pagr=0，2，4，6第0~3行，column=0~3汉子出现的列，number选第几汉字输出*/
void Display(unchar ss,unchar page,unchar column,unchar number)
{
unchar i;
SelectScreen(ss);
column=column&0x3f;
SetLine(page); /*写上半页*/
SetColumn(column); /*控制列*/
for(i=0;i<16;i++) /*控制16列的数据输出*/
{
WriteByte(Hzk[i+32*number]);/*i+32*number汉字的前16个数据输出*/
}
SetLine(page+1); /*写下半页*/
SetColumn(column); /*控制列*/
for(i=0;i<16;i++) /*控制16列的数据输出*/
{
WriteByte(Hzk[i+32*number+16]);/*i+32*number+16汉字的后16个数据输出*/
}
}
/*---------------------显示半角汉字和数字和字母----------------------*/
/*选屏参数，pagr选页参数，column选列参数，number选第几汉字输出*/
void Displayen(unchar ss,unchar page,unchar column,unchar number)
{
unchar i;
SelectScreen(ss);
column=column&0x3f;
SetLine(page); /*写上半页*/
SetColumn(column);
for(i=0;i<8;i++)
{
WriteByte(Ezk[i+16*number]);
}
SetLine(page+1); /*写下半页*/
SetColumn(column);
for(i=0;i<8;i++)
{
WriteByte(Ezk[i+16*number+8]);
}
}
//---显示缓冲填充函数---//*
void convert(unint n)
{
n=n*100;
n=n/51;
SegBuf[2] =n%10;
SegBuf[1] =n/10%10;
SegBuf[0] =n/100%10;
}
//---549延时函数---//
void delay549(unint t)
{
while(t--);
}
//---采集549数据函数---//
unchar read_549()//数据得采集
{
unint i;
unchar k=0x00;//定义一个变量k，将在dout上采集的到的数据装进K
for(i=0;i<8;i++)
{
k<<=1;//左移一位
k|=dout;
clock=1;//高电平期间采集dout线上的数据
_nop_();
clock=0;
delay549(10);
}
return k;//返回值
}
//---读取549AD数据函数---//
unchar shuchu_549()//数据得读取
{
unchar date;
cs=1;
clock=1;
cs=0;//片选低电平时数据有效
_nop_();
_nop_();
date=read_549();//将read_549（）函数中采集到的数据付给变量date
cs=1;//片选拉高，表示数据读取完毕
delay549(50);
return date;//返回值
}
/*主函数*/
void main()
{
unchar ADCDat;
InitLCD(); /*初始12864*/
ClearScreen(0); /*清屏*/
SetStartLine(0);/*显示开始行*/
while(1)
{
ADCDat=shuchu_549();
convert(ADCDat); //转换显示码
Display(2,0,0*16,15);//当
Display(2,0,1*16,16);//前
Display(2,0,2*16,17);//电
Display(2,0,3*16,18);//压
Display(1,0,0*16,19);//是
Display(1,0,1*16,20);//:
Displayen(2,2,0*8,SegBuf[0]);
Displayen(2,2,1*8,13);
Displayen(2,2,2*8,SegBuf[1]);
Displayen(2,2,3*8,SegBuf[2]);
Display(2,2,2*16,21);//伏
}
}