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#include"reg52.h"
#include"stdio.h"
#include"math.h"
#include"absacc.h"
#include"intrins.h"
typedef unsigned char uchar;
typedef unsigned int uint;
unsigned char inte=0;
float uu=0;
unsigned long int ff=0;
unsigned long int DL,DH;
sbit sc=P1^6;
sbit sr=P1^7;
sbit fw=P3^5;
sbit srg=P1^2;
sbit srd=P1^3;
sbit scg=P1^4;
sbit scd=P1^5;
sbit fr=P1^0;
sbit fc=P1^1;
sbit LED=P3^7;
sbit rs=P2^2;
sbit rw=P2^1;
sbit en=P2^0;
sbit CS = P3^4;
sbit Clk = P3^3;
sbit DATI = P3^2;
sbit DATO = P3^2;
/*******************************定義全局變量********************************/
unsigned char dat = 0x00; //AD值
unsigned char CH;
unsigned char code table[]={"0123456789"};
#define count_M1 50000
#define H_0 (65536-count_M1)/256
#define L_0 (65536-count_M1)%256
char times=0;
bit status_F=1;
char scan=1;
unsigned int freq=0;
sfr16 DPTR=0x82;
void delay1ms(int);
void display(uint x);
void display1(uint dat);
//入口參數(shù):CH 出口參數(shù):dat
unsigned char adc0832(unsigned char CH)
{
unsigned char i,test,adval;
adval = 0x00;
test = 0x00;
Clk = 0; //初始化
DATI = 1;
_nop_();
CS = 0;
_nop_();
Clk = 1;
_nop_();
if ( CH == 0x00 ) //通道選擇
{
Clk = 0;
DATI = 1; //通道0的第一位
_nop_();
Clk = 1;
_nop_();
Clk = 0;
DATI = 0; //通道0的第二位
_nop_();
Clk = 1;
_nop_();
}
else
{
Clk = 0;
DATI = 1; //通道1的第一位
_nop_();
Clk = 1;
_nop_();
Clk = 0;
DATI = 1; //通道1的第二位
_nop_();
Clk = 1;
_nop_();
}
Clk = 0;
DATI = 1;
for( i = 0;i < 8;i++ ) //讀取前8位的值
{
_nop_();
adval <<= 1;
Clk = 1;
_nop_();
Clk = 0;
if (DATO)
adval |= 0x01;
else
adval |= 0x00;
}
for (i = 0; i < 8; i++) //讀取后8位的值
{
test >>= 1;
if (DATO)
test |= 0x80;
else
test |= 0x00;
_nop_();
Clk = 1;
_nop_();
Clk = 0;
}
if (adval == test) //比較前8位與后8位的值，如果不相同舍去。若一直出現(xiàn)顯示為零，請(qǐng)將該行去掉
dat = test;
_nop_();
CS = 1; //釋放ADC0832
DATO = 1;
Clk = 1;
return dat;
}
void delay(uint n)
{
uint x,y;
for(x=n;x>0;x--)
for(y=110;y>0;y--);
}
void lcd_wcom(uchar com)
{
rs=0;
rw=0;
P0=com;
delay(5);
en=1;
en=0;
}
void lcd_wdat(uchar dat)
{
rs=1;
rw=0;
P0=dat;
delay(5);
en=1;
en=0;
}
void lcd_init(void)
{
lcd_wcom(0x38);
lcd_wcom(0x0c);
lcd_wcom(0x06);
lcd_wcom(0x01);
}
void lcd_xianshi1(void)
{
lcd_wcom(0x80+0x40);
lcd_wdat('D');
lcd_wdat('i');
lcd_wdat('a');
lcd_wdat('n');
lcd_wdat('Z');
lcd_wdat('u');
lcd_wdat(':');
lcd_wcom(0x80+0x4e);
lcd_wdat(' ');
lcd_wdat('K');
}
void lcd_xianshi2()
{
lcd_wcom(0x80+0x40);
lcd_wdat('D');
lcd_wdat('i');
lcd_wdat('a');
lcd_wdat('n');
lcd_wdat('R');
lcd_wdat('o');
lcd_wdat('n');
lcd_wdat('g');
lcd_wdat(':');
lcd_wcom(0x80+0x4e);
lcd_wdat('p');
lcd_wdat('F');
}
void xuanze()
{
lcd_wcom(0x80+0x00); //Please choose
lcd_wdat(' ');
lcd_wdat('P');
lcd_wdat('l');
lcd_wdat('e');
lcd_wdat('a');
lcd_wdat('s');
lcd_wdat('e');
lcd_wdat(' ');
lcd_wdat('c');
lcd_wdat('h');
lcd_wdat('o');
lcd_wdat('o');
lcd_wdat('s');
lcd_wdat('e');
lcd_wdat(':');
lcd_wcom(0x80+0x40); //Cap or Res
lcd_wdat(' ');
lcd_wdat(' ');
lcd_wdat(' ');
lcd_wdat('C');
lcd_wdat('a');
lcd_wdat('p');
lcd_wdat(' ');
lcd_wdat('o');
lcd_wdat('r');
lcd_wdat(' ');
lcd_wdat('R');
lcd_wdat('e');
lcd_wdat('s');
}
void huanying()
{
lcd_wcom(0x80+0x00); //Welcome to use
lcd_wdat(' ');
lcd_wdat('W');
lcd_wdat('e');
lcd_wdat('l');
lcd_wdat('c');
lcd_wdat('o');
lcd_wdat('m');
lcd_wdat('e');
lcd_wdat(' ');
lcd_wdat('t');
lcd_wdat('o');
lcd_wdat(' ');
lcd_wdat('u');
lcd_wdat('s');
lcd_wdat('e');
}
void measure(void)
{
IE=0x8a;
EA=1;
ET1=1;
ET0=1;
TMOD=0x51;
TH0=H_0;
TL0=L_0;
TH1=0;
TL1=0;
TR0=1;
// while(fw==1); //測(cè)得引腳P3^5為高電平
TR1=1; //timer1 開始計(jì)數(shù)
// while(fw==0); //測(cè)得引腳P3^5為低電平
// TR1=0;
//timer1 停止計(jì)數(shù)
// DL=TL1; //讀當(dāng)前計(jì)數(shù)值
// DH=TH1;
/// freq=DPTR;
// TH1=100;
// TL1=100;
// uu=DH*256+DPL+inte*65536; //計(jì)算總計(jì)數(shù)值
// inte=0; //清累計(jì)溢出計(jì)數(shù)
// tt=uu/(12*1000000.0/12.0); //求振蕩周期
// ff=(unsigned long int)(1.0/tt); //頻率值求震蕩頻率
}
void yunsuan (void)
{
float tt=0;
// DPH=11;
// DPL=12;
uu=DH*256+DL+inte*65536; //計(jì)算總計(jì)數(shù)值
inte=0; //清累計(jì)溢出計(jì)數(shù)
tt=uu/(12*1000000.0/12.0); //求振蕩周期
ff=(unsigned long int)(1.0/tt); //頻率值求震蕩頻率
}
void judgekey1()
{
long int R=0;
// R=(dat*1000)/(255-dat);
R=10*dat-130;
display(R);
LED=~LED;
}
void judgekey2()
{
long int C=0;
if(scd==0)
{
// C=3193333.0/freq;
C=((9.4*ff)-200)*0.8;
display1(C);
LED=~LED;
}
else if (scg==0)
{
// C=3193333.0/ff;
C=(9.4*ff)-200;
display1(C);
LED=~LED;
}
}
void display(uint x)
{
uchar qian,bai1,shi1,ge1;
qian=x/1000;
bai1=(x%1000/100);
shi1=(x%100/10);
ge1=x%10;
// lcd_wcom(0x80+0x0b);
lcd_wcom(0x80+0x49);
if(qian==0)
{lcd_wdat(' ');}
else if(qian!=0)
{lcd_wdat(table[qian]);}
lcd_wdat(table[bai1]);
lcd_wdat(table[shi1]);
lcd_wdat(table[ge1]);
}
void display1(uint y)
{
uchar qian0,bai0,shi0,ge0;
qian0=y/1000;
bai0=(y%1000/100);
shi0=(y%100/10);
ge0=y%10;
lcd_wcom(0x80+0x49);
if(qian0==0)
{lcd_wdat(' ');}
else if(qian0!=0)
{lcd_wdat(table[qian0]);}
lcd_wdat(table[bai0]);
lcd_wdat(table[shi0]);
lcd_wdat(table[ge0]);
}
void main(void)
{
// fw=1;
LED=0;
CH = 0x00; //在這里選擇通道 0x00或0x01
lcd_init();
measure();
sr=sc=1;
while(1)
{
if(sr==0)
{
lcd_init();
while(sr==0)
{
huanying();
// fr=1;
// fc=0;
// TR0=1;
// TR1=1;
// measure();
// status_F=0;
// measure();
// while(status_F==0);
lcd_xianshi1();
// TR1=1;
// yunsuan();
dat=adc0832(CH);
// dat=123;
// display(dat);
judgekey1();
// display();
}
}
else if(sc==0)
{
lcd_init();
while(sc==0)
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