Proteus:简易示波器
视频链接：https://www.bilibili.com/video/BV1sr4y1C7tH
#include "reg52.h" //此文件中定义了单片机的一些特殊功能寄存器
#include < intrins.h >
#define uchar unsigned char
#define uint unsigned int
#define ulong unsigned long
typedef unsigned int u16; //对数据类型进行声明定义
typedef unsigned char u8;
sbit CLK=P3^3;//定义时钟信号口
sbit DIN=P3^1;//定义2543数据写入口
sbit DOUT=P3^0;//定义2543数据读取口
sbit CS=P3^2;//定义2543片选信号口
#define LCD_databus P0 //LCD12864的8位数据口
sbit RS=P2^2; //RS为0---命令；1----数据
sbit RW=P2^1; //RW为1---写；0---读
sbit EN=P2^0; //使能端
sbit CS1=P2^4; //片选1低电平有效，控制左半屏
sbit CS2=P2^3; //片选1低电平有效，控制右半屏
ulong volt;//测量的电压值
ulong Result;
unsigned char code da[]={/*-- 文字: 大 --*/
/*-- 楷体_GB231212; 此字体下对应的点阵为：宽x高=16x16 --*/
0x00,0x00,0x40,0x40,0x40,0x40,0xFF,0x20,0x20,0x20,0x20,0x20,0x00,0x00,0x00,0x00,
0x00,0x20,0x10,0x08,0x04,0x03,0x00,0x01,0x02,0x04,0x08,0x10,0x30,0x20,0x20,0x00};
unsigned char code BMP[][64]={/*-- 调入了一幅图像：D:Desktop12848坐标.BMP --*/
/*-- 宽度x高度=128x48 --*/
0X00,0X17,0X15,0X1D,0X00,0X02,0XFE,0X06,0X02,0X00,0X00,0X00,0X00,0X00,0X00,0X00,
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,
0X00,0X00,0X00,0X00,0X00,0X00,0X00,0X00,0X00,0X00,0X00,0X00,0X00,0X00,0X00,0X00,
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,
0X00,0X07,0X04,0X1F,0X00,0X00,0XFF,0X04,0X00,0X00,0X00,0X00,0X00,0X00,0X00,0X00,
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,
0X00,0X00,0X00,0X00,0X00,0X00,0X00,0X00,0X00,0X00,0X00,0X00,0X00,0X00,0X00,0X00,
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,
0X00,0X15,0X15,0X1F,0X00,0X00,0XFF,0X04,0X00,0X00,0X00,0X00,0X00,0X00,0X00,0X00,
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,
0X00,0X00,0X00,0X00,0X00,0X00,0X00,0X00,0X00,0X00,0X00,0X00,0X00,0X00,0X00,0X00,
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,
0X00,0X0E,0X8B,0X0B,0X00,0X00,0XFF,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,
0X00,0X00,0X00,0X00,0X00,0X00,0X00,0X00,0X00,0X00,0X00,0X00,0X00,0X00,0X00,0X00,
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,
0XC0,0X00,0X0F,0X00,0XC0,0X00,0XFF,0X02,0X00,0X00,0X00,0X00,0X00,0X00,0X00,0X00,
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,
0X00,0X00,0X00,0X00,0X00,0X00,0X00,0X00,0X00,0X00,0X00,0X00,0X00,0X00,0X00,0X00,
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,
0X00,0X01,0X02,0X01,0X00,0X78,0X4B,0X7A,0X02,0X02,0X02,0X02,0X02,0X02,0X02,0X02,
0XFB,0X02,0X02,0X02,0X02,0X02,0X02,0X02,0X02,0XEA,0XAA,0XBA,0X02,0X02,0X02,0X02,
0X02,0X02,0XA2,0XAA,0XFA,0X02,0X02,0X02,0X02,0X02,0X02,0X02,0X3A,0X23,0XFA,0X02,
0X02,0X02,0X02,0X02,0X02,0X02,0XBA,0XAB,0XEA,0X02,0X02,0X02,0X02,0X02,0X02,0X02,
0XFA,0XAB,0XEA,0X02,0X02,0X02,0X02,0X02,0X02,0X02,0X0A,0X0B,0XFA,0X02,0X02,0X02,
0X02,0X02,0X02,0X02,0XFA,0XAB,0XFA,0X02,0X02,0X02,0X02,0X02,0X02,0X02,0XBA,0XFA,
0X02,0X02,0X02,0X02,0X02,0X02,0XFA,0X02,0XFB,0X8A,0XFA,0X02,0X02,0X02,0X02,0X02,
0X02,0XFA,0X03,0XFA,0X02,0X02,0X02,0X02,0X07,0X00,0X00,0X00,0X00,0X00,0X02,0X02,
};
void Read_busy()//读“忙”函数-----数据线的最高位DB71则busy
{
P0=0x00;
RS=0;
RW=1;
EN=1;
while(P0 & 0x80);
EN=0;
}
void write_LCD_command(uchar value) //写命令函数
{
Read_busy(); //对LCD的每次读写都要读忙
RS=0; //选择命令
RW=0; //读操作
LCD_databus=value;
EN=1; //EN由1----0锁存有效数据
_nop_();
_nop_();
EN=0;
}
void write_LCD_data(uchar value)//写数据函数
{
Read_busy();
RS=1; //选择数据
RW=0;
LCD_databus=value;
EN=1; //EN由1----0锁存有效数据
_nop_();
_nop_();
EN=0;
}
uchar Read_LCD(void) //读数据函数
{
uchar value;
Read_busy();
LCD_databus=0xFF; //先进行一次空读操作
RS=1;
RW=1;
EN=1;
_nop_();
_nop_();
EN=0;
LCD_databus=0xFF; //读取真正的数据
RS=1;
RW=1;
EN=1;
value=LCD_databus;
_nop_();
_nop_();
EN=0;
return value;
}
void Set_page(uchar page) //设置“页”LCD12864共8页，一页是8行点阵点
{
page=0xb8|page; //页的首地址为0xB8
write_LCD_command(page);
}
void Set_line(uchar startline) //设置显示的起始行
{
startline=0xC0|startline; //起始行地址为0xC0
write_LCD_command(startline); //设置从哪行开始：共0--63;一般从0 行开始显示
}
void Set_column(uchar column) //设置显示的列
{
column=column &0x3f; //列的最大值为64
column= 0x40|column; //列的首地址为0x40
write_LCD_command(column); //规定显示的列的位置
}
void SetOnOff(uchar onoff) //显示开关函数：0x3E是关显示，0x3F是开显示
{
onoff=0x3e|onoff; //onoff:1---开显示；0---关显示
write_LCD_command(onoff);
}
void SelectScreen(uchar screen) //选择屏幕
{
switch(screen)
{
case 0: CS1=0;CS2=0;break; //全屏
case 1: CS1=0;CS2=1;break;//左半屏
case 2: CS1=1;CS2=0;break;//右半屏
default:break;
}
}
void ClearScreen(uchar screen) //清屏函数
{
uchar i,j;
SelectScreen(screen); //0--全屏；1---左半屏；2---右半屏
for(i=0;i< 8;i++) //控制页数0-7，共8页
{
Set_page(i);
Set_column(0);
for(j=0;j< 64;j++) //控制列数0-63，共64列
{
write_LCD_data(0x00); //写入0，地址指针自加1
}
}
}
void InitLCD() //LCD的初始化
{
SetOnOff(1); //开显示
SelectScreen(0);
ClearScreen(0); //清屏
Set_line(0); //开始行:0
}
void Draw_dots(uchar x,uchar y,uchar color)
{
uchar x_byte;
uchar x_bit;
uchar Temp_data; //暂时存放从LCD读出的数据
x_byte=(y >>3); //计算出该点属于哪个字节
x_bit=y-(x_byte< <3); //属于字节的哪一位?
if(x >63) //x>63则显示在右半屏
{
SelectScreen(2);
x=x-64;
}
else //显示在左半屏
{
SelectScreen(1);
}
Set_page(x_byte); //设置行地址
Set_column(x); //设置列地址
Temp_data=Read_LCD(); //先读出没打点前LCD中的数据
switch(color)
{
case 0x01 : Temp_data &= ~(1< >=1;
volt=ad;//取走转换结果
volt=volt*1221;//例子的满量程为5V，转换分辩率为12位（2的12次方=4096） 。即最大值是255，5/4096=1221mV,即例子中的1V代表实际1221mV
}
void delay(uchar ms)
{ // 延时子程序
uchar i;
while(ms--)
{
for(i = 0;i< 250;i++);
}
}
void main()
{
uchar x,y;
InitLCD(); //初始12864
ClearScreen(0); //清屏
Set_line(0); //显示开始行
Display_picture(BMP); //坐标图
Display_HZ(1,0,0,da);
Display_HZ(2,0,2,da);
while(1)
{
for(x=12;x< 128;x++) //正弦曲线
{
read2543(0);
Result = volt / 125030;
y=56-Result;
Draw_dots(x,y,2);
delay(20);
}
Display_picture(BMP); //坐标图
}
}
审核编辑：汤梓红);break;>
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