#include

#include

//12864控制引脚定义

sbit DI = P2 ^ 2; //数据\指令选择引脚

sbit RW = P2 ^ 1; //读\写选择引脚

sbit E= P2 ^ 0;   //读\写使能引脚

sbit CS1 = P2 ^ 4;    //片选1引脚

sbit CS2 = P2 ^ 3;    //片选2引脚

sbit BUSY= P1 ^ 7;    //忙标志位

//按键控制定义

sbit Y1 = P3 ^ 0;

sbit Y2 = P3 ^ 1;

sbit X1 = P3 ^ 3;

sbit X2 = P3 ^ 7;

//ADC0832控制引脚

sbit START=P3^4;

sbit OE=P3^6;

sbit EOC=P3^5;

unsigned int ADdata;    //AD采集值

unsigned int Ldata;

unsigned char ye,lei,shu;

unsigned char ADViewdata[91]; //AD显示数据存储区

char code FrameData[]={                     //提示字符存储区

0x00,0x00,0x3F,0xF8,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xFF,0xFE,0x01,0x00,

0x01,0x00,0x11,0x10,0x11,0x08,0x21,0x04,0x41,0x02,0x81,0x02,0x05,0x00,0x02,0x00,    //示

0x00,0x20,0x20,0x20,0x10,0x20,0x13,0xFE,0x82,0x22,0x42,0x24,0x4A,0x20,0x0B,0xFC,

0x12,0x84,0x12,0x88,0xE2,0x48,0x22,0x50,0x22,0x20,0x24,0x50,0x24,0x88,0x09,0x06,                //波

0x00,0x00,0x3E,0x7C,0x22,0x44,0x22,0x44,0x3E,0x7C,0x01,0x20,0x01,0x10,0xFF,0xFE,

0x02,0x80,0x0C,0x60,0x30,0x18,0xC0,0x06,0x3E,0x7C,0x22,0x44,0x22,0x44,0x3E,0x7C,    //器

0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,

0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,    //" "

};

//AD转换软件

void ADCChage()

{

START=1;

START=0;

while(EOC==0)  //等待转换完成

{

OE=1;

}

ADdata = P0;   //读取AD数据

OE=0;

}

//检查12864液晶状态

void CheckState()

{

DI=0;

RW=1;

do

{

E=1;

E=0;

//仅当第7位为0时才可操作(判别busy信号)

}while(BUSY==1);

}

//向12864写入一个字节的命令

void WriteCommand(unsigned char cmd)

{

CheckState();         //检查当前的12864状态

DI = 0;

RW = 0;

P1 = cmd;             //送出相应的命令

E = 1;

E = 0;

}

//向12864写入一个字节的数据

void WriteData(unsigned char dat)

{

CheckState();   //检查当前的12864状态

DI = 1;

RW = 0;

P1 = dat;       //送出相应的数据

E = 1;

E = 0;

}

//12864液晶的选择控制引脚

void LCMCSControl(unsigned int csl)

{

if(csl==1)    //根据参数不同判断当前的12864控制引脚状态

{

CS1=0,

CS2=1;

}

if(csl==2)

{

CS1=1,

CS2=0;

}

if(csl==3)

{

CS1=0,

CS2=0;

}

}

//12864显示函数

void LCMView()

{

LCMCSControl(Ldata);     //先发送控制命令

WriteCommand(ye);

WriteCommand(lei);

WriteData(shu);         //然后发送数据

}

//12864的清屏函数

void CleanScreen()

{

unsigned char page,i;

LCMCSControl(3);

for(page=0xb8;page<=0xbf;page++)

{

WriteCommand(page);

WriteCommand(0x40);

for(i=0;i<64;i++)

{

WriteData(0x00);

}

}

LCMCSControl(1);

lei=0x40;

for(ye=0xb8;ye<0xbf;ye++)

{

shu=0xff;

LCMView();

}

ye=0xb8;

for(lei=0x40;lei<=0x7f;lei++)

{

shu=0x80;

LCMView();

}

ye=0xbf;

for(lei=0x40;lei<=0x7f;lei++)

{

shu=0x01;

LCMView();

}

LCMCSControl(2);

ye=0xb8;

for(lei=0x40;lei<=0x5b;lei++)

{

shu=0x80;

LCMView();

}

ye=0xbf;

for(lei=0x40;lei<=0x5b;lei++)

{

shu=0x01;

LCMView();

}

lei=0x5b;

for(ye=0xb9;ye<=0xbe;ye++)

{

shu=0xff;

LCMView();

}

}

//12864的初始化函数

void InitLCM(void)

{

WriteCommand(0xc0);

WriteCommand(0x3f);

}

//50us的延时函数

void Delay50us(unsigned int t)

{

unsigned char j;

for(;t>0;t--)

for(j=19;j>0;j--);

}

//刷新12864液晶

void RefreshLCM()

{

unsigned char i;

for(i=0xb9;i<=0xbe;i++)

{

ye=i;

shu=0x00;

LCMView();

}

}

//主函数

void main()

{

unsigned int r,j,q,k;

unsigned int Xaxis =0;

unsigned int Yaxis = 1;

unsigned char l;

unsigned char d1,d2,d3,d4,d5;

CleanScreen();

InitLCM();

LCMCSControl(2);

l=0xb8;

for(k=0;k<4;k++,l=l+0x02)         //首先显示右侧的提示

{

ye=l;

lei=0x70;

for(r=0;r<16;r++)

{

shu=FrameData[2*r+1+32*k];

LCMView();

lei++;

}

ye=l+0x01;

lei=0x70;

for(r=0;r<16;r++)

{

shu=FrameData[2*r+32*k];

LCMView();

lei++;

}

}

while(1)

{

while(X2==0)      //调节X轴

{

while(X2==0);

Xaxis = Xaxis + 1;

}

while(X1==0)

{

while(X1==0);

if(Xaxis!=0)

{

Xaxis = Xaxis - 1;

}

}

while(Y1==0)     //调节Y轴

{

while(Y1==0);

Yaxis = Yaxis + 1;

}

while(Y2==0)

{

while(Y2==0);

if(Yaxis!=1)

{

Yaxis=Yaxis-1;

}

}

for(j=0;j<90;j++) //AD采样最大值

{

ADCChage();

ADViewdata[j]=ADdata;

if(ADViewdata[j]>ADViewdata[91])

{

ADViewdata[91]=ADViewdata[j];

}

Delay50us(Xaxis);

}

while(ADdata!=ADViewdata[91])    //如果采集值不相等，则继续

{

ADCChage();

}

for(j=0;j<90;j++)      //连续采样90次

{

ADCChage();

ADViewdata[j]=ADdata;

Delay50us(Xaxis);

}

lei=0x41;

for(r=0,j=0;r<90;r++,j++)

{

if(j<63)

{

Ldata=1;

}

if(j==63)

{

lei=0x40;

}

if(j>=63)

{

Ldata=2;

}

RefreshLCM();     //刷新当前显示

if(ADViewdata[j>=127])//正电压

{

ADdata=(ADViewdata[j]-127)*0.196/Yaxis;  //计算电压值

if(ADdata<=7)

{

ye=0xbb;

shu=(0x80>>ADdata);

}

else if(ADdata<=15)

{

ye=0xba;

shu=(0x80>>(ADdata-8));

}

else if(ADdata<=23)

{

ye=0xb9;

shu=(0x80>>(ADdata-16));

}

else if(ADdata<=31)

{

ye=0xb9;

shu=(0x80>>(ADdata-24));

}

}

if(ADViewdata[j]<127)     //负电压

{

ADdata=(127-ADViewdata[j])*0.196/Yaxis;    //计算电压值

if(ADdata<=7)

{

ye=0xbc;

shu=(0x01<

}

else if(ADdata<=15)

{

ye=0xbd;

shu=(0x01<

}

else if(ADdata<=23)

{

ye=0xbe;

shu=(0x01<

}

else if(ADdata<=31)

{

ye=0xbe;

shu=(0x01<

}

}

if(r==0)//判断正负

{

d1=shu;

d2=ye;

}

if(r!=0)

{

d3=shu;

d4=ye;

if(ye==d2)  //如果相等，则判断是否显示完成

{

if(shu>d1)

{

d5=shu;

d5=d5>>1;

while(d5!=d1)

{

d5=d5>>1;

shu=shu|(shu>>1);

}

}

if(shu

{

d5=shu;

d5=d5<<1;

while(d5!=d1)

{

d5=d5<<1;

shu=shu|(shu<<1);

}

}

}

if(ye

{

for(q=0;q<7;q++)

{

shu=shu|(shu<<1);

}

LCMView();

ye++;

while(ye

{

shu=0xff;

LCMView();

ye++;

}

if(ye==d2)

{

shu=0x01;

if(shu

{

d5=shu;

d5=d5<<1;

while(d5!=d1)

{

d5=d5<<1;

shu=shu|(shu<<1);

}

}

}

}

if(ye>d2)

{

for(q=0;q<7;q++)

{

shu=shu|(shu>>1);

}

LCMView();

ye--;

while(ye>d2) {shu=0xff,LCMView(),ye--;}

if(ye==d2)

{

shu=0x80;

if(shu>d1)

{

d5=shu;

d5=d5>>1;

while(d5!=d1)

{

d5=d5>>1;

shu=shu|(shu>>1);

}

}

}

}

}

if(r!=0)

{

d1=d3;

d2=d4;

}

LCMView();

if(lei!=0x7f)

{

lei++;

}

}

}

}