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標題: 基于單片機的流水設計 [打印本頁]

作者: 15171408864 時間: 2017-12-3 12:11
標題: 基于單片機的流水設計
#include <reg52.h>
#include <intrins.h>

unsigned char  data dig[14] = {0x01,0x02,0x04,0x08,0x10,0x20,0x40,
                                                            0x80,0x40,0x20,0x10,0x08,0x04,0x02};
void Delay500ms()       //@12.000MHz
{
unsigned char i, j, k;

_nop_();
i = 4;
j = 205;
k = 187;
do
{
      do
      {
         while (--k);
      } while (--j);
} while (--i);
}

/*
void main(void)
{

P1 = 0xaa;//0000_0001
while(1)
{
      P1 = ~P1;
      Delay500ms();
}
}*/

/*
void main(void)
{
P1 = 0x01;
while(1)
{
      unsigned char a;
      for(a = 0 ; a < 7 ; a++)
      {
         P1 = P1 << 1;
         Delay500ms();
      }
      for(a = 0 ; a < 7 ; a++)
      {
         P1 = P1 >> 1;
         Delay500ms();
      }
}
}
*/
void main(void)
{
P0 = 0x00;
while(1)
{
      unsigned char a;
      for(a = 0; a <= 13; a++)
      {
         P0 = dig[a];
         Delay500ms();
      }
}
}

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