基于单片机的波形发生器代码和仿真文件

ID:212728 · 发表于 2017-6-21 22:59

内附程序代码和程序文件以及仿真文件，这次偷懒没写报告

单片机源程序：

#include <reg51.h>
#include <stdio.h>
#include <absacc.h>
#define uchar unsigned char
uchar code tab[10]={0x3f,0x06,0x5b,0x4f,0x66,0x6d,0x7d,0x07,0x7f,0x6f};
uchar code tab1[8]={0x3f,0x7f,0x40,0x5b,0x06,0xdb,0x3f,0x6d};
uchar code
tosin[256]={0x80,0x83,0x86,0x89,0x8d,0x90,0x93,0x96,0x99,0x9c,0x9f,0xa2,0xa5,0xa8,0xab,0xae,
0xb1,0xb4,0xb7,0xba,0xbc,0xbf,0xc2,0xc5,0xc7,0xca,0xcc,0xcf,0xd1,0xd4,0xd6,0xd8,
0xda,0xdd,0xdf,0xe1,0xe3,0xe5,0xe7,0xe9,0xea,0xec,0xee,0xef,0xf1,0xf2,0xf4,0xf5,
0xf6,0xf7,0xf8,0xf9,0xfa,0xfb,0xfc,0xfd,0xfd,0xfe,0xff,0xff,0xff,0xff,0xff,0xff,
0xff,0xff,0xff,0xff,0xff,0xff,0xfe,0xfd,0xfd,0xfc,0xfb,0xfa,0xf9,0xf8,0xf7,0xf6,
0xf5,0xf4,0xf2,0xf1,0xef,0xee,0xec,0xea,0xe9,0xe7,0xe5,0xe3,0xe1,0xde,0xdd,0xda,
0xd8,0xd6,0xd4,0xd1,0xcf,0xcc,0xca,0xc7,0xc5,0xc2,0xbf,0xbc,0xba,0xb7,0xb4,0xb1,
0xae,0xab,0xa8,0xa5,0xa2,0x9f,0x9c,0x99,0x96,0x93,0x90,0x8d,0x89,0x86,0x83,0x80,
0x80,0x7c,0x79,0x76,0x72,0x6f,0x6c,0x69,0x66,0x63,0x60,0x5d,0x5a,0x57,0x55,0x51,
0x4e,0x4c,0x48,0x45,0x43,0x40,0x3d,0x3a,0x38,0x35,0x33,0x30,0x2e,0x2b,0x29,0x27,
0x25,0x22,0x20,0x1e,0x1c,0x1a,0x18,0x16,0x15,0x13,0x11,0x10,0x0e,0x0d,0x0b,0x0a,
0x09,0x08,0x07,0x06,0x05,0x04,0x03,0x02,0x02,0x01,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x01,0x02,0x02,0x03,0x04,0x05,0x06,0x07,0x08,0x09,
0x0a,0x0b,0x0d,0x0e,0x10,0x11,0x13,0x15,0x16,0x18,0x1a,0x1c,0x1e,0x20,0x22,0x25,
0x27,0x29,0x2b,0x2e,0x30,0x33,0x35,0x38,0x3a,0x3d,0x40,0x43,0x45,0x48,0x4c,0x4e,
0x51,0x55,0x57,0x5a,0x5d,0x60,0x63,0x66,0x69,0x6c,0x6f,0x72,0x76,0x79,0x7c,0x80};
uchar b=0,c=0,d=0,e=0,i,k,tl,th;
int ww=0,qw=0,bw=8,sw=8,gw=8,zkgw=0,zksw=5;
int t,f,m,choice=1,zk=50;
void delay100ms()
{
unsigned char i,j;
for(i=200;i>0;i--);
for(j=248;j>0;j--);
}
void chushihua(void)
{
P3=0xfe;
P2=tab1[0];
for(i=0;i<=60;i++);
P3=0xfd;
P2=tab1[1];
for(i=0;i<=60;i++);
P3=0xfb;
P2=tab1[2];
for(i=0;i<=60;i++);
P3=0xfb;//小数点显示P2=0x00;
for(i=0;i<=60;i++);
P3=0xf7;
P2=tab1[3];
for(i=0;i<=60;i++);
P3=0xef;P2=tab1[4];
for(i=0;i<=60;i++);
P3=0xdf;
P2=tab1[5];
for(i=0;i<=60;i++);
P3=0xbf;P2=tab1[6];
for(i=0;i<=60;i++);
P3=0x7f;
P2=tab1[7];
for(i=0;i<=60;i++);}
void key1(void)
{
if(choice<4)
choice=choice+1;
else
choice=1;}/*个位频率调整*/
void key2(void)
{
if(gw<9)
gw=gw+1;
else
gw=0;}
void key3(void)
{
if(sw<9)
sw=sw+1;
else
sw=0;}/*百位频率调整*/
void key4(void)
{
if(bw<9)
bw=bw+1;
else
bw=0;}
void key5(void)
{
if(qw<9)
qw=qw+1;
else
qw=0;}/*万位频率调整*/
void key6(void)
{
if(ww<5)
ww=ww+1;
else
ww=0;}/*方波占空比加大*/
void key7(void)
{
if (zk<100)
zk=zk+1;
else
zk=0;}
void key8(void)
{
if(zk>=1)
zk=zk-1;
else
zk=0;
}
void jisuan(void)
{TR0=0;//关闭定时器
f=100000*ww+1000*qw+100*bw+10*sw+gw;
t=1000000/f;
th=-t/256;
tl=-t%256;
ww=f/10000;
f=f%10000;
qw=f/1000;
f=f%1000;
bw=f/100;
f=f%100;
sw=f/10;
gw=f%10;
zkgw=zk%10;
zksw=zk/10;
TR0=1;}
void display (void)
{
P3=0xfb;
P2=tab[choice];
for(i=0;i<=60;i++);
P3=0xfb;
P2=0x80;//小数点显示
for(i=0;i<=60;i++);
P3=0xf7;
P2=tab[ww];
for(i=0;i<=60;i++);
P3=0xef;
P2=tab[qw];
for(i=0;i<=60;i++);
P3=0xdf;P2=tab[bw];
for(i=0;i<=60;i++);
P3=0xbf;
P2=tab[sw];
for(i=0;i<=60;i++);
P3=0x7f;
P2=tab[gw];
for(i=0;i<=60;i++);
if(choice==3)
{P3=0xfd;
P2=tab[zkgw];
for(i=0;i<=60;i++);
P3=0xfe;
P2=tab[zksw];
for(i=0;i<=60;i++);
P3=0xfd;
P2=0x80;//小数点显示
for(i=0;i<=60;i++) ;
}}
void judge (void)
{
{unsigned char X,Y,Z;
P1=0xff;
P1=0x0f;//先对P3置数行扫描
if(P1!=0x0f)//判断是否有键按下
{delay100ms();//延时,软件去干扰
if(P1!=0x0f)//确认按键按X=P1;
{
X=P1;//保存行扫描时有键按下时状态
P1=0xf0;//列扫描
Y=P1;//保存列扫描时有键按下时状态
Z=X|Y;//取出键值
switch (Z)//判断键值（那一个键按下）
{
case 0x7d: key1(); break;
case 0xee: key2(); break;//对键值赋值
case 0xde: key3(); break;
case 0xbe: key4(); break;
case 0x7e: key5(); break;
case 0xed: key6(); break;
case 0xdd: key7(); break;
case 0xbd: key8();break;
}}}
}}
void main (void)
{
int n;
for(n=0;n<600;n++)
{
chushihua();
}
TMOD=0X01;
TR0=1;
th=-t/256;
tl=-t%156;
TH0=th;
TL0=tl;
ET0=1;
EA=1;
while(1)
{
jisuan();
for(i=0;i<=50;i++);
display();
judge();
}
}
void time0_int(void)
interrupt 1//中断服务程序
{
TR0=0;
if(choice==1)
{
P0=tosin[b];//正弦波
b++;
}
else
if(choice==2)//三角波
{if(c<=128)P0=c;
else
P0=255-c;
c++;
}
else
if(choice==3)//方波
{k=zk*256/100;d++;
if(d<=k)P0=0x00;
else
P0=0xff;}
else
if(choice==4)//锯齿波
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