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標(biāo)題: 求大神幫我看看仿真結(jié)果不對(duì)問題出在哪里，萬分感謝 [打印本頁]

作者: 葉陽初語 時(shí)間: 2018-5-23 10:52
標(biāo)題: 求大神幫我看看仿真結(jié)果不對(duì)問題出在哪里，萬分感謝
仿真結(jié)果應(yīng)該是，顯示屏顯示的數(shù)字頻率，和示波器周期算出來的頻率差不多誤差較小。但是我現(xiàn)在仿真出來以后誤差特別大，示波器顯示的周期基本就在8.6變化，不管是1hz還是10000hz。程序在附件，或者我貼到下面
電路圖

軟件.doc

180.5 KB, 下載次數(shù): 4

作者: 葉陽初語 時(shí)間: 2018-5-23 10:53
#include<reg51.h>/*51單片機(jī)頭文件*/
#include<absacc.h>
#include<stdio.h>
#define COM8253 XBYTE[0x0003]
#define COM0 XBYTE[0x0000]
#define COM1 XBYTE[0x0001]
#define uchar unsigned char
#define uint unsigned int
uchar code table[]="Clock Speed:";
uchar code table1[]="range:";
uchar code table2[]=" gap:";
sbit icden=P3^0;
sbit rs=P3^1;/*1602使能icden和寫rs*/
sbit set=P2^0;
sbit wei=P2^1;
sbit wei1=P2^7;
sbit wei2=P2^5; /*set進(jìn)入掃頻頻率設(shè)置窗口，wei掃頻初始頻率設(shè)置，wei1終值頻率窗口*/
sbit add=P2^2;
sbit red=P2^3; /*add數(shù)值增加，red數(shù)值減少，*/
sbit gap=P2^6;/*步長(zhǎng)設(shè)置*/
sbit exit=P2^4;/*exit退出設(shè)定程序*/
sbit a1=P3^2;
sbit b1=P3^3;
sbit c1=P3^4;/*74151數(shù)據(jù)選擇器，ABC端口*/
uchar num=5,num1=5,num2=5,ad=0,ad1=0,gap1=0;/*num,num1用于設(shè)置光標(biāo)位置，ad,ad1,gap1允許設(shè)置初始或終值頻率的標(biāo)示符*/
uchar set1=0,set2=0,set3=0,set4=0,set5=0,set6=0;/*初始頻率各位的變量*/
uchar set11=0,set22=0,set33=0,set44=0,set55=0,set66=0;/*終值頻率各位的變量*/
uchar sett1=0,sett2=0,sett3=0,sett4=0,sett5=0,sett6=0;/*步長(zhǎng)各位的變量*/
unsigned long low,high,n1,n2,n3;/*low、high分別存儲(chǔ)初始和終值頻率，n2存儲(chǔ)實(shí)時(shí)頻率，n3存儲(chǔ)步長(zhǎng),n1存放8253初值*/
int n=0;/*n每中斷一次加一，最大值50，即發(fā)生50次中斷n歸0,用于規(guī)定掃頻間隔時(shí)間。*/
unsigned long sw,wan,qian,bai,shi,ge;/*存儲(chǔ)從n2分離的各位，用于實(shí)時(shí)顯示頻率*/
uchar flag1,flag2,star=1;/*flag1、flag2用于確定使用定時(shí)器0還是定時(shí)器1。star允許頻率產(chǎn)生的標(biāo)示符*/
unsigned long c,d;
uint a,b,e,f,h;
uchar cs=0,i,z;
void delay(uint z)/*延遲函數(shù)*/
{
uint x,y;
for(x=z;x>0;x--)
for(y=110;y>0;y--);
}
void write_com(uchar com)/*1602寫入指令*/
{
rs=0;
P1=com;
delay(5);
icden=1;
delay(5);
icden=0;
}
void write_data(uchar date)/*1602寫入數(shù)據(jù)*/
{
rs=1;
P1=date;
delay(5);
icden=1;
delay(5);
icden=0;
}
void init()/*1602初始化*/
{

icden=0;
write_com(0x38);
write_com(0x0e);
write_com(0x01);
}
void display()/*掃頻顯示界面*/
{
write_com(0x01);
write_com(0x80);
for(num=0;num<12;num++)
{
     write_data(table[num]);
delay(5);
}
}
void display1(unsigned long n2)/*掃頻頻率顯示*/
{
if(star==1)
{

sw=n2/100000;
wan=n2/10000%10;
qian=n2/1000%10;
bai=n2/100%10;
shi=n2/10%10;
ge=n2%10;
write_com(0x80+0x40);
write_data(0x30+sw);
write_data(0x30+wan);
write_data(0x30+qian);
write_data(0x30+bai);
write_data(0x30+shi);
write_data(0x30+ge);
}
}
void setlow(uint set1,set2,set3,set4,set5,set6,set11,set22,set33,set44,set55,set66)/*將鍵盤輸入的數(shù)據(jù)存入low、high中，確定flag1、flag2值*/
{

low=set1*100000+set2*10000+set3*1000+set4*100+set5*10+set6;
high=set11*100000+set22*10000+set33*1000+set44*100+set55*10+set66;
if(low<5000)
{flag1=1;}
else flag1=2;
if(high<5000)
{flag2=1;}
else flag2=2;

}

void keyscan()/*鍵盤掃描*/
{
if(set==0)/*進(jìn)入設(shè)置界面*/
{
     delay(10);
if(set==0)
{
write_com(0x01);
write_com(0x80);
for(num=0;num<6;num++)
{
write_data(table1[num]);
}
write_com(0x80+6);
write_data(0x30+set1);
write_data(0x30+set2);
write_data(0x30+set3);
write_data(0x30+set4);
write_data(0x30+set5);
write_data(0x30+set6);
write_com(0x80+12);
write_data('H');
write_data('Z');
write_com(0x80+0x40+5);
write_data(':');
write_com(0x80+0x40+6);
write_data(0x30+set11);
write_data(0x30+set22);
write_data(0x30+set33);
write_data(0x30+set44);
write_data(0x30+set55);
write_data(0x30+set66);
write_com(0x80+0x40+12);
write_data('H');
write_data('Z');
num=6;
write_com(0x80+6);
      ad=1;/*ad=1,ad=0,標(biāo)志只可進(jìn)行初始頻率設(shè)置*/
ad1=0;
gap1=0;
star=0;
while(!set);
}
}

if(gap==0)/*對(duì)掃頻步長(zhǎng)進(jìn)行設(shè)定，初始為20HZ*/
{
delay(10);
if(gap==0)
{
write_com(0x01);
write_com(0x80);
for(num2=0;num2<6;num2++)
{write_data(table2[num2]);}
write_com(0x80+6);
write_data(0x30+sett1);
write_data(0x30+sett2);
write_data(0x30+sett3);
write_data(0x30+sett4);
write_data(0x30+sett5);
write_data(0x30+sett6);
write_com(0x80+12);
write_data('H');
write_data('Z');
num2=6;
write_com(0x80+6);
gap1=1;/*選位的同時(shí)，gap1置1，只可對(duì)步長(zhǎng)進(jìn)行設(shè)置*/
ad=0;
ad1=0;
star=0;
while(!gap);
}
}

if(wei==0)/*初始頻率進(jìn)行位選，選擇要增加或減少的位置*/
{
delay(10);
if(wei==0)
{
num++;
if(num>11)
{num=6;}
write_com(0x80+num);
ad=1;/*選位的同時(shí)，ad置1，只可對(duì)初始頻率進(jìn)行設(shè)置*/
ad1=0;
gap1=0;
star=0;
while(!wei);
}
}

if(wei1==0)/*終值頻率進(jìn)行位選，選擇要增加或減少的數(shù)據(jù)位*/
{
delay(10);
if(wei1==0)
{
num1++;
if(num1>11)
{num1=6;}
write_com(0x80+0x40+num1);
ad1=1;/*選位的同時(shí)，ad1置1，只可對(duì)終值頻率進(jìn)行設(shè)置*/
ad=0;
gap1=0;
star=0;
while(!wei1);
}
}

if(wei2==0)/*步長(zhǎng)進(jìn)行位選，選擇要增加或減少的數(shù)據(jù)位*/
{
delay(10);
if(wei2==0)
{
num2++;
if(num2>11)
{num2=6;}
write_com(0x80+num2);
gap1=1;/*選位的同時(shí)，gap1置1，只可步長(zhǎng)進(jìn)行設(shè)置*/
ad1=0;
ad=0;
star=0;
while(!wei2);
}
}

if(add==0)/*增加數(shù)值*/
{
delay(10);
if(add==0)
{

if(ad==1)/*掃頻初值增加*/
{
switch(num)/*由num值來確定設(shè)置哪個(gè)數(shù)據(jù)位*/
     {
case 6:
set1++;
     if(set1>9)
     {set1=0;}
     write_com(0x80+num);
     write_data(0x30+set1);
write_com(0x80+num);
break;
case 7:
set2++;
if(set2>9)
     {set2=0;}
     write_com(0x80+num);
     write_data(0x30+set2);
write_com(0x80+num);
break;
case 8:
set3++;
if(set3>9)
{set3=0;}
write_com(0x80+num);
write_data(0x30+set3);
write_com(0x80+num);
break;
   case 9:
set4++;
     if(set4>9)
     {set4=0;}
     write_com(0x80+num);
     write_data(0x30+set4);
write_com(0x80+num);
break;
case 10:
set5++;
if(set5>9)
     {set5=0;}
     write_com(0x80+num);
     write_data(0x30+set5);
write_com(0x80+num);
break;
case 11:
set6++;
if(set6>9)
{set6=0;}
write_com(0x80+num);
write_data(0x30+set6);
write_com(0x80+num);
break;
}
}

if(gap1==1)/*步長(zhǎng)增加*/
{
switch(num2)/*由num2來確定增加哪個(gè)數(shù)據(jù)位*/
     {
case 6:
if(sett1==9)
     {sett1=0;}
else sett1++;
     write_com(0x80+num2);
     write_data(0x30+sett1);
write_com(0x80+num2);
break;
case 7:
if(sett2==9)
     {sett2=0;}
else sett2++;
write_com(0x80+num2);
     write_data(0x30+sett2);
write_com(0x80+num2);
break;
case 8:
if(sett3==9)
{sett3=0;}
else sett3++;
write_com(0x80+num2);
write_data(0x30+sett3);
write_com(0x80+num2);
break;
   case 9:
if(sett4==9)
     {sett4=0;}
else sett4++;
     write_com(0x80+num2);
     write_data(0x30+sett4);
write_com(0x80+num2);
break;
case 10:
if(sett5==9)
     {sett5=0;}
else sett5++;
write_com(0x80+num2);
     write_data(0x30+sett5);
write_com(0x80+num2);
break;
case 11:
   if(sett6==9)
{sett6=0;}
else sett6++;
write_com(0x80+num2);
write_data(0x30+sett6);
write_com(0x80+num2);
break;
}
}

if(ad1==1)/*終值頻率增加*/
{
switch(num1)/*由num1確定增加的位置*/
{
case 6:
if(set11>=9)
     {set11=0;}
else set11++;
     write_com(0x80+0x40+num1);
     write_data(0x30+set11);
write_com(0x80+0x40+num1);
break;
case 7:
if(set22>=9)
{set22=0;}
     else set22++;
     write_com(0x80+0x40+num1);
     write_data(0x30+set22);
write_com(0x80+0x40+num1);
break;
case 8:
if(set33>=9)
{set33=0;}
else set33++;
write_com(0x80+0x40+num1);
write_data(0x30+set33);
write_com(0x80+0x40+num1);
break;
           case 9:
if(set44>=9)
     {set44=0;}
else set44++;
     write_com(0x80+0x40+num1);
     write_data(0x30+set44);
write_com(0x80+0x40+num1);
break;
case 10:
if(set55>=9)
     {set55=0;}
else set55++;
write_com(0x80+0x40+num1);
     write_data(0x30+set55);
write_com(0x80+0x40+num1);
break;
case 11:
if(set66>=9)
{set66=0;}
else set66++;
write_com(0x80+0x40+num1);
write_data(0x30+set66);
write_com(0x80+0x40+num1);
break;
}
}
star=0;
while(!add);
}
}

if(red==0)/*對(duì)數(shù)據(jù)進(jìn)行減操作*/
{
delay(10);
if(red==0)
{
if(ad==1)/*初始頻率減少*/
{
switch(num)
     {
case 6:
if(set1==0)
     {set1=9;}
else set1--;
     write_com(0x80+num);
     write_data(0x30+set1);
write_com(0x80+num);
break;
case 7:
if(set2==0)
     {set2=9;}
else set2--;
     write_com(0x80+num);
     write_data(0x30+set2);
write_com(0x80+num);
break;
case 8:
if(set3==0)
{set3=9;}
else set3--;
write_com(0x80+num);
write_data(0x30+set3);
write_com(0x80+num);
break;
   case 9:
if(set4==0)

作者: 葉陽初語 時(shí)間: 2018-5-23 10:53
{set4=9;}
else set4--;
     write_com(0x80+num);
     write_data(0x30+set4);
write_com(0x80+num);
break;
case 10:
if(set5==0)
     {set5=9;}
set5--;
     write_com(0x80+num);
     write_data(0x30+set5);
write_com(0x80+num);
break;
case 11:
if(set6==0)
{set6=9;}
set6--;
write_com(0x80+num);
write_data(0x30+set6);
write_com(0x80+num);
break;
}
}

if(gap1==1)/*步長(zhǎng)減少*/
{
switch(num2)
     {
case 6:
if(sett1==0)
     {sett1=9;}
else sett1--;
     write_com(0x80+num2);
     write_data(0x30+sett1);
write_com(0x80+num2);
break;
case 7:
if(sett2==0)
     {sett2=9;}
else sett2--;
     write_com(0x80+num2);
     write_data(0x30+sett2);
write_com(0x080+num2);
break;
case 8:
if(sett3==0)
{sett3=9;}
else sett3--;
write_com(0x80+num2);
write_data(0x30+sett3);
write_com(0x80+num2);
break;
   case 9:
if(sett4==0)
     {sett4=9;}
else sett4--;
     write_com(0x80+num2);
     write_data(0x30+sett4);
write_com(0x80+num2);
break;
case 10:
if(sett5==0)
     {sett5=9;}
else sett5--;
     write_com(0x80+num2);
     write_data(0x30+sett5);
write_com(0x80+num2);
break;
case 11:
if(sett6==0)
{sett6=9;}
else sett6--;
write_com(0x80+num2);
write_data(0x30+sett6);
write_com(0x80+num2);
break;
}
}

if(ad1==1)/*終值減少*/
{
switch(num1)
     {
case 6:
if(set11==0)
     {set11=9;}
else set11--;
     write_com(0x80+0x40+num1);
     write_data(0x30+set11);
write_com(0x80+0x40+num);
break;
case 7:
if(set22==0)
     {set22=9;}
else set22--;
     write_com(0x80+0x40+num1);
     write_data(0x30+set22);
write_com(0x80+0x40+num1);
break;
case 8:
if(set33==0)
{set33=9;}
else set33--;
write_com(0x80+0x40+num1);
write_data(0x30+set33);
write_com(0x80+0x40+num1);
break;
   case 9:
if(set44==0)
     {set44=9;}
else set44--;
     write_com(0x80+0x40+num1);
     write_data(0x30+set44);
write_com(0x80+0x40+num1);
break;
case 10:
if(set55==0)
     {set55=9;}
else set55--;
     write_com(0x80+0x40+num1);
     write_data(0x30+set55);
write_com(0x80+0x40+num1);
break;
case 11:
if(set66==0)
{set66=9;}
else set66--;
write_com(0x80+0x40+num1);
write_data(0x30+set66);
write_com(0x80+0x40+num1);
break;
}
}
star=0;
while(!red);
}
}


if(exit==0)/*退出設(shè)定頻率系統(tǒng)，將star置1，允許方波產(chǎn)生*/
{
delay(10);
if(exit==0)
{

ad=0;
ad1=0;
gap1=0;
star=1;
display();
while(!exit);
}
}

}
void chuzhi()
{

a=0x0000;
b=0x0000;
cs=0;h=0;e=0;

while(c>0)
{

d=c;
switch(cs)
{
case 0:
     f=d%16;
     a=a+f;
     c=c/16;
h=a;
break;
case 1:
f=d%16;
b=b+f;
for(i=cs;i>0;i--)
{b=b<<4;}
c=c/16;
h=b|h;
b=0;
break;
case 2:
case 3:
f=d%16;
b=b+f;
for(i=cs-2;i>0;i--)
{b=b<<4;}
c=c/16;
e=b|e;
b=0;
break;
}
cs++;
}
}
void produce()/*掃頻產(chǎn)生程序*/
{
n3=sett1*100000+sett2*10000+sett3*1000+sett4*100+sett5*10+sett6;
if(flag1==1&flag2==1)/*使用定時(shí)器0*/
{
a1=0;b1=0;c1=0;
n2=low;
while(n2<high)
{
n1=50000/n2;
c=n1;
chuzhi();
COM0=h;
COM0=e;
ET0=1;
TR0=1;
display1(n2);
while(n<50)
{
keyscan();
}
n=0;
ET0=0;
TR0=0;
n2=n2+n3;
if(star==0)
break;
}

n2=high;
while(n2>low)
{
n1=50000/n2;
c=n1;
chuzhi();
COM0=h;
COM0=e;
ET0=1;
TR0=1;
display1(n2);
while(n<50)
{
keyscan();
}
n=0;
ET0=0;
TR0=0;
n2=n2-n3;
if(star==0)
break;
}

}


if(flag1==2&flag2==2)/*使用定時(shí)器1*/
{
a1=1;b1=0;c1=0;
n2=low;
while(n2<high)
{
n1=1000000/n2;
c=n1;
chuzhi();
COM1=h;
COM1=e;
ET0=1;
TR0=1;
display1(n2);
while(n<50)
{
keyscan();
}
n=0;
ET0=0;
TR0=0;
n2=n2+n3;
if(star==0)
break;
}

n2=high;
while(n2>low)
{
n1=1000000/n2;
c=n1;
chuzhi();
COM1=h;
COM1=e;
ET0=1;
TR0=1;
display1(n2);
while(n<50)
{
keyscan();
}
n=0;
ET0=0;
TR0=0;
n2=n2-n3;
if(star==0)
break;
}

}

if(flag1==1&flag2==2)/*先使用定時(shí)器0，再使用定時(shí)器1*/
{
a1=0;b1=0;c1=0;
n2=low;
while(n2<5000)
{
n1=50000/n2;
c=n1;
chuzhi();
COM0=h;
COM0=e;
ET0=1;
TR0=1;
display1(n2);
while(n<50)
{
keyscan();
}
n=0;
ET0=0;
TR0=0;
n2=n2+n3;
if(star==0)
break;
}

a1=1;b1=0;c1=0;
while(n2<high)
{
n1=1000000/n2;
c=n1;
chuzhi();
COM1=h;
COM1=e;
ET0=1;
TR0=1;
display1(n2);
while(n<50)
{
keyscan();
}
n=0;
ET0=0;
TR0=0;
n2=n2+n3;
if(star==0)
break;
}

n2=high;
while(n2>low)
{
n1=1000000/n2;
c=n1;
chuzhi();
COM1=h;
COM1=e;
ET0=1;
TR0=1;
display1(n2);
while(n<50)
{keyscan();}
n=0;
ET0=0;
TR0=0;
n2=n2-n3;
if(star==0)
break;
}

a1=0;b1=0;c1=0;
while(n2>low)
{
n1=50000/n2;
c=n1;
chuzhi();
COM0=h;
COM0=e;
ET0=1;
TR0=1;
display1(n2);
while(n<50)
{keyscan();}

n=0;
ET0=0;
TR0=0;
n2=n2-n3;
if(star==0)
break;
}
}
}

void main()
{

COM8253=0x36;/*8253初始化，選擇定時(shí)器0，工作方式3，二進(jìn)制*/
COM8253=0x76;/*選擇定時(shí)器1，工作方式3，二進(jìn)制*/
init();/*1602初始化*/
display();/*頻率顯示界面*/
TMOD=0x01;/*定時(shí)器0工作方式1*/
TH0=(65536-50000)/256;/*定時(shí)器0初值裝入*/
TL0=(65536-50000)%256;
EA=1;/*開總中斷*/
ET0=0;/*允許定時(shí)器0中斷*/
TR0=0;/*允許定時(shí)器計(jì)數(shù)*/

a1=0;b1=0;c1=0;
while(1)
{
keyscan();
setlow(set1,set2,set3,set4,set5,set6,set11,set22,set33,set44,set55,set66);
if(star==1)
{
        produce();
   }
}
}

void T0_time() interrupt 1/*使定時(shí)器中斷0*/
{
TH0=(65536-50000)/256;
TL0=(65536-50000)%256;
n++;
}

作者: 葉陽初語 時(shí)間: 2018-5-23 11:13
電路圖

電路圖.png (96.8 KB, 下載次數(shù): 42)

電路圖

作者: 葉陽初語 時(shí)間: 2018-5-23 13:05
求大佬指點(diǎn)

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