最新天堂中文在线丨午夜嘿嘿嘿影院丨亚洲国产精品高清久久久丨中文字幕人成乱码熟女app丨www91亚洲丨97成人资源丨成人中文字幕+乱码+中文字幕丨一区二区三区在线 | 日丨日韩免费大片丨亚洲欧美一区二区三区丨国产在线观看a丨亚洲成人第一区丨国内免费视频成人精品丨亚洲综合色网站丨午夜精品美女久久久久av福利丨国产午夜人做人免费视频网站丨国产又黄视频丨97se狼狼狼狼狼亚洲网丨狠狠亚洲婷婷综合色香五月丨中国一级毛片黄丨国产女人十八毛片丨国产色视频在线播放丨国产亚洲精久久久久久无码苍井空丨天天摸日日摸爽爽狠狠丨久久综合香蕉国产蜜臀av

系統程序：
#include <c8051f000.h>
typedef unsigned char uchar;
typedef unsigned int uint;
typedef unsigned long ulong;
sbit P1_0=P1^0;
sbit P1_2=P1^2;
sbit P0_6=P0^6;
sbit P0_4=P0^4;
sbit P0_7=P0^7;
sbit P1_3=P1^3;
sbit P1_4=P1^4;
#define CON 28585756
uint t[4]={0,0,0,0};
uint i=0,a=0,t1=0,t2=0,e=0,tt=0;
char d=1,n=1,jj=0,j=0,m=0;

union tcfint16{
      uint myword0;
      struct{uchar hi;uchar low;}bytes0;
      }myint16;
union tcfint116{
      uint myword1;
      struct{uchar hi;uchar low;}bytes1;
      }myint116;
void pca1()                            //設置脈沖捕捉
{    
EIE1=0x00;                          //禁止脈沖捕捉中斷
PCA0MD=0x00;                      //系統時鐘12分頻，禁止pca中斷
PCA0CN=0x00;                       //CR=0
PCA0CPM0=0x20;
PCA0CPM1=0x20;                      //正沿捕捉
}
void DAC0(uint DAChl)
{
myint16.myword0=DAChl;
DAC0L=myint16.bytes0.low;
DAC0H=myint16.bytes0.hi;
}
void delay()
{
uint xxxx,xxx=999,xx,x;
for(x=0;x<400;x++)
   for(xx=0;xx<x;xx++)
   {
     xxxx=xxx/1000;
    }
}
main()                              //主函數
{
uint t0;
uint dk1=0,dk2=0;
WDTCN=0xde;
WDTCN=0xad;            //關看門狗
XBR0=0x12;
XBR2=0x40;               //交叉開關設置,外部中斷無引腳
XBR1=0x00;
OSCICN=0x95;             //內部時鐘4MHz
DAC1CN=0;               //DCA1無效
PRT0CF=0xc0;
PRT1CF=0x18;
CKCON=0xe7;            //系統時鐘12分頻
TMOD=0x11;
TCON=0x00;               //外部中斷請求及標志位0
TH0=0x00;
TL0=0x00;
TH1=0x00;
TL1=0x00;
pca1();                   //pca初始化  
REF0CN=0x03;
DAC0CN=0x84;             //DCA0使能，左對齊
  P1_0=0;
  P1_2=1;
  P0_6=0;
  P0_7=0;
  P1_3=0;
  P1_4=0;
   EA=1;                          //中斷設置
   ET0=1;
   PT0=1;
   ET1=1;
   PT1=1;
   a=0x91A0;
   //a=0xF2A0;
     DAC0(a);
    delay();    
//****************************測頻*****************************//
  while(1){
   for(i=1;i<4;i++){
    CCF0=0;                         //變頻上升沿標志
   while(CCF0==0)
   {}
   TR1=1;
   CCF0=0;                          //變頻上升沿標志
   while(CCF0==0)
   {}
   TR1=0;
myint116.bytes1.low=TL1;
myint116.bytes1.hi=TH1;
TH1=0;
TL1=0;
if(myint116.myword1>6000&&myint116.myword1<30000)  //剔除粗大誤差值
{m++;
t[m]=myint116.myword1;
}
else
i--;}
    for(i=1;i<=2;i++)                //中值濾波
     for(jj=1;jj<=3-i;jj++)
       if(t[jj]>t[jj+1])
         {t[0]=t[jj];
         t[jj]=t[jj+1];
         t[jj+1]=t[0];
         }  
    dk1=t[2];                        
    for(i=0;i<4;i++)
    t=0;
    n=1;                           //進入鑒頻鑒相
//***************************鑒頻*****************************//
while(d==1){                        //測量變頻周期
   for(i=1;i<4;i++){
    CCF1=0;                       //變頻上升沿標志
   while(CCF1==0)
   {}
   TR1=1;
   CCF1=0;                         //變頻上升沿標志
   while(CCF1==0)
   {}
   TR1=0;
myint116.bytes1.low=TL1;
myint116.bytes1.hi=TH1;
TH1=0;
TL1=0;
if(myint116.myword1>6000&&myint116.myword1<30000)
{m++;
t[m]=myint116.myword1;
}
else
i--;                   }
    for(i=1;i<=2;i++)                  //中值濾波
     for(jj=1;jj<=3-i;jj++)
       if(t[jj]>t[jj+1])
         {t[0]=t[jj];
         t[jj]=t[jj+1];
         t[jj+1]=t[0];
         }  
    dk2=t[2];
    for(i=0;i<4;i++)
    t=0;
    if(dk2>dk1+2)                       //鑒頻
     {a=a+192;
      DAC0(a);}
     else
      d=0;
     }
    a=0xF2A0;
    DAC0(a);
//****************************鑒相*****************************//     TR0=1;
    while(n==1)
    {
    CCF1=0;
    while(CCF1==0)
    {}
    TR1=1;
    CCF0=0;
    while(CCF0==0)
    {}
    TR1=0;
    myint116.bytes1.low=TL1;
    myint116.bytes1.hi=TH1;
      TH1=0;
      TL1=0;
      t1=myint116.myword1;//假設變頻超前測t1
      if(t1>=(dk1-700))
      t1=t1-(dk1-700);
      else
      t1=700+t1;             //補償
    CCF0=0;
    while(CCF0==0)
    {}
    TR1=1;
    CCF1=0;
    while(CCF1==0)
    {}
    TR1=0;
    myint116.bytes1.low=TL1;
    myint116.bytes1.hi=TH1;
      TH1=0;
      TL1=0;
      t2=myint116.myword1;      //假設工頻超前測t2
    f(t2>=700)
    t2=t2-700;
    else
    t2=dk1-(700-t2);           //補償
      if(t1<=t2)               //變頻超前工頻
      {if(t1<250)
       {a=CON/dk1*16-t1;
       DAC0(a);}
       else{
       a=CON/dk1*16-250;
       DAC0(a);}
       n=0;                   //轉入測頻
       }
      else                      //工頻超前變頻
      {if(t2<250)
       {a=CON/dk1*16+t2;
       DAC0(a);}
        else{
       a=CON/dk1*16+250;
       DAC0(a);}
       n=0;                    //轉入測頻
      }
    }
  }
}
void t0_ISR()interrupt 1     //中斷服務程序
{TH0=0x00;
TL0=0x00;
TF0=0;
j++;
if(j==80)
{j=0;
P0_7=1;}
}
void t1_ISR()interrupt 3   //中斷服務程序
{TH1=0x00;
TL1=0x00;
TF1=0;
}

各位用C語言編程序難嗎？