单片机基于PCF8591智能信号发生器，只求一个仿真图！

ID:463096 · 发表于 2019-1-7 14:25

如题，只求一个仿真图就可以！
程序如下：
#include <reg52.h>
#include "i2c.h"

#define AddWr 0x90 //写数据地址
#define AddRd 0x91 //读数据地址

#include <reg52.h>

#define uint unsigned int
#define uchar unsigned char
sbit duan=P2^6;
sbit wei=P2^7;
sbit P1_3=P1^3;
sbit P1_7=P1^7;
sbit P3_4=P3^4;
sbit beep=P2^3;

int a,b,c,d,e,f,frq,range,t,temp;
double range2;

uint zhouqi;

uchar code table[]={
0x3f,0x06,0x5b,0x4f,
0x66,0x6d,0x7d,0x07,
0x7f,0x6f,0x77,0x7c,
0x39,0x5e,0x79,0x71};

void delay(uint x)
{
      int i,j;                                              //延时xms程序
      for(i=x;i>0;i--)
            for(j=112;j>0;j--);
}

void delay_us(uint time)       //延时xus程序
{
   while(time--);
}

extern bit ack;
bit WriteDAC(unsigned char dat);

uchar code sintab[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
};

uchar code fangbotab[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
};

uchar code juchitab[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
};

uchar code sanjiaotab[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
};

void display(int a,int b,int c,int d,int e,int f)
{
      duan=1;
      P0=table[a];
      duan=0;
      wei=1;
      P0=0xfe;
      wei=0;
      delay(1);
      duan=1;
      P0=table[b];
      duan=0;
      wei=1;
      P0=0xfd;
      wei=0;
      delay(1);
      duan=1;
      P0=table[c];
      duan=0;
      wei=1;
      P0=0xfb;
      wei=0;
      delay(1);
      duan=1;
      P0=table[d];
      duan=0;
      wei=1;
      P0=0xf7;
      wei=0;
      delay(1);
      duan=1;
      P0=table[e]+0x80;
      duan=0;
      wei=1;
      P0=0xbf;
      wei=0;
      delay(1);
      duan=1;
      P0=table[f];
      duan=0;
      wei=1;
      P0=0x7f;
      wei=0;
      delay(1);
}

void fangbo()
{
int i;
      while(1)
      {
                     P1_3=1;
                     delay_us(zhouqi);
                     P1_3=0;
                     delay_us(zhouqi);
            for(i=0;i<64;i++)
            {
                     WriteDAC((fangbotab[i]/5)*range2);
            }
            //       beep=1;

      }
}

void sanjiaobo()
{
      int i;
      while(1)
      {
            for(i=0;i<64;i++)
            {
                     WriteDAC((sanjiaotab[i]/5)*range2);
            }
      }
}

void juchibo()
{
      int i;
      while(1)
      {
            for(i=0;i<64;i++)
            {
                     WriteDAC((juchitab[i]/5)*range2);
            }
      }
}

void zhengxianbo()
{
      int i;
      while(1)
      {
            for(i=0;i<64;i++)
            {
                     WriteDAC((sintab[i]/5)*range2);
            }
      }
}
void rjia1()
{
      range=range+10;
      if(range>=50)
      {
               range=50;
      }
}
void rjian1()
{
      range=range-10;
      if(range<=0)
      {
               range=0;
      }
}
void rjia2()
{
      range++;
      if(range>=50)
      {
               range=50;
      }
}
void rjian2()
{
      range--;
      if(range<=0)
      {
               range=0;
      }
}
int jianpan()
{
      P3=0x0f;
      if(P3!=0x0f)
      {
            P3=0xfe;
            if(P3!=0xfe)
            {
                     switch(P3)//第一行键盘,切换模式，分别对应1，2，3，4键
                     {
                              case 0xee:fangbo();break;
                              case 0xde:sanjiaobo();break;
                              case 0xbe:juchibo();break;
                              case 0x7e:zhengxianbo();break;
                     }
            }
            P3=0xfd;
            if(P3!=0xfd)
            {
                     P3=0xfd;
                     delay(10);
                     if(P3!=0xfd)
                     {
                              switch(P3)//第二行键盘，调频率?
                              {
                                    case 0xed:frq=10;break;
                                    case 0xdd:frq=100;break;
                                    case 0xbd:frq=500;break;
                                    case 0x7d:frq=1000;break;
                              }
                     }
            }
            P3=0xfb;
            if(P3!=0xfb)
            {
                     P3=0xfb;
                     delay(10);
                     if(P3!=0xfb)
                     {
                              switch(P3)//第三行键盘，调峰峰值
                              {
                                    case 0xeb:rjia1();break;
                                    case 0xdb:rjian1();break;
                                    case 0xbb:rjia2();break;
                                    case 0x7b:rjian2();break;
                              }
                     }
                     while(P3!=0xfb);
            }
      }
      return frq;
      return range;
}

void init()
{
      frq=500;
      range=20;
}
void fuzhi()
{
            a=frq/1000;
            b=frq%1000/100;
            c=frq%100/10;
            d=frq%10;
            e=range/10;
……………………

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