基于51单片机的波形发生器和电子密码锁仿真与源码

ID:297063 · 发表于 2018-3-26 09:35

这里面包含了波形发生器和电子密码锁的防真及程序，暂时只是部分图片浏览详细大家可以去看压缩包。

仿真原理图如下（proteus仿真工程文件可到本帖附件中下载）
原理图.png

所有资料51hei提供下载:

caiwenjun.rar (253.27 KB, 下载次数: 35)

2018-3-26 09:32 上传

点击文件名下载附件

单片机源程序如下:

#include<reg52.h>
#define uchar unsigned char
#define uint unsigned int
sbit csda=P3^2; //定义DA的CS端口
sbit wr=P3^6;
//定义DA的WR端口
sbit s1=P3^4;
sbit s2=P3^5; //定义两个按键
uchar k=0,p=0,delay=0;
uchar bxxz=0;pinglv=0;
uchar a=1,b=0,c=0,d=0,e=0;
uchar code sin[64]={
135,145,158,167,176,188,199,209,218,226,234,240,245,249,252,254,254,253,251,247,243,237,230,222,213,204,193,182,170,158,
146,133,121,108,96,84,72,61,50,41,32,24,17,11,7,3,1,0,0,2,5,9,14,20,28,36,45,55,66,78,90,102,114,128
}; //正弦波
uchar code juxing[64]={
255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,
255,255,255,255,255,255,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0
}; //矩形波
uchar code juchi[64]={
0,4,8,12,16,20,24,28,32,36,40,45,49,53,57,61,65,69,73,77,81,85,89,93,97,101,105,109,113,117,121,125,130,134,138,142,
146,150,154,158,162,166,170,174,178,182,186,190,194,198,202,206,210,215,219,223,227,231,235,239,243,247,251,255
}; //锯齿波
uchar code tixing[64]={
0,13,26,39,52,65,78,91,104,117,130,143,156,169,182,195,208,221,234,247,247,247,247,247,247,247,247,247,247,247,247,247,247,247,247,247,247,247,
247,247,247,247,247,247,247,242,229,216,203,190,177,164,151,138,125,112,99,86,73,60,47,34,21,8
}; //梯形波
uchar code sanjiao[64]={
0,8,16,24,32,40,48,56,64,72,80,88,96,104,112,120,128,136,144,152,160,168,176,184,192,200,208,216,224,232,240,248,
248,240,232,224,216,208,200,192,184,176,168,160,152,144,136,128,120,112,104,96,88,80,72,64,56,48,40,32,24,16,8,0
}; //三角波
void delay1()
{
int a,b;
for(a=1;a>0;a--)
for(b=122;b>0;b--); //延时函数
}
void key1(void) //频率选择，独立按键1
{
if(s1==0)
{
delay1();
if(s1==0) //按键按下
{
p++; //p频率选择参数
if(p==8)
p=0;
switch(p)
{
case 1 :
pinglv=3;
break;
case 2 :
pinglv=6;
break;
case 3 :
pinglv=9;
break;
case 4 :
pinglv=12;
break;
case 5 :
pinglv=15;
break;
case 6 :
pinglv=18;
break;
case 7 :
pinglv=21;
break;
default :
pinglv=0;
break;
}
while(!s1); ///等待按键松开
}
}
}
void key2(void) //波形选择，按键2
{
if(s2==0)
{
delay1();
if(s2==0)
{
bxxz++; //波形类型++
if(bxxz==5)
bxxz=0;
switch(bxxz)
{
case 0 :
{a=1,b=0,c=0,d=0,e=0;}
break;
case 1 :
{a=0,b=1,c=0,d=0,e=0;}
break;
case 2 :
{a=0,b=0,c=1,d=0,e=0;}
break;
case 3 :
{a=0,b=0,c=0,d=1,e=0;}
break;
case 4 :
{a=0,b=0,c=0,d=0,e=1;}
break;
}
delay1();
while(!s2); //等待按键松开
}
}
}
void keyscan(void)
{
key1(); //频率
key2(); //波形
}
/*----------------------main----------------*/
/*----------------------main----------------*/
/*----------------------main----------------*/
/*----------------------main----------------*/
/*----------------------main----------------*/
/*----------------------main----------------*/
void main()
{
csda=0; //选通DAC0832
wr=0; //WR有效
while(1)
{
keyscan(); //调用按键扫描
if(a)
{
delay=pinglv;
P0=sin[k];
k++;
if(k==64)
k=0;
while(delay)
delay--;
}
if(b)
{
delay=pinglv;
P0=juxing[k];
k++;
if(k==64)
k=0;
while(delay)
delay--;
}
if(c)
{
delay=pinglv;
P0=juchi[k];
k++;
if(k==64)
k=0;
while(delay)
delay--;
}
if(d)
{
……………………
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