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標題: 單片機輸出1HZ方波（源代碼+仿真） [打印本頁]

作者: zhang118124 時間: 2016-3-21 08:44
標題: 單片機輸出1HZ方波（源代碼+仿真）
#include       "Reg51.h"

sbit       SquOut       =       P2^0;

char       INIT_H_0,       INIT_L_0,       INIT_H_1,       INIT_L_1;

void       MySqureOut_T0_ISR(void)       interrupt       1       using       1
{
      /*TH0       =       0xFE;
      TL0       =       0x16;
      SquOut       ^=       0x01;*/

      if       (SquOut)
      {
            TH0       =       INIT_H_0;
            TL0       =       INIT_L_0;
            SquOut       =       0;
      }
      else
      {
            TH0       =       INIT_H_1;
            TL0       =       INIT_L_1;
            SquOut       =       1;
      }/**/
}

void       main(void)
{
      unsigned       int       Period,       CntH, CntL;
      float       TempF;

      Period       =       1;
      Period       *=       1000;       //將其確定為計數(shù)個數(shù)
      TempF       =       20;
      TempF       *=       Period;
      TempF       /=       100;
      CntH       =       (int)TempF;
      CntL       =       Period       -       CntH;
      if       (CntH       >       10)
            CntH       -=       10;
      else
            CntH       =       1;
      CntH       =       0xFFFF       -       CntH;
      INIT_H_1       =       (CntH       >>       8)       &       0xFF;
      INIT_L_1       =       CntH       &       0xFF;
      if       (CntL       >       10)
            CntL       -=       10;
      else
            CntL       =       1;
      CntL       =       0xFFFF       -       CntL;
      INIT_H_0       =       (CntL       >>       8)       &       0xFF;
      INIT_L_0       =       CntL       &       0xFF;
      //初始化
      TH0       =       0xFE;
      TL0       =       0x0C;
      TMOD       =       0x01;
      ET0             =       1;
      EA             =       1;
      TR0             =       1;

      while(1);
}

9.1 輸出1kHz方波.rar

38.97 KB, 下載次數(shù): 11, 下載積分: 黑幣 -5

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