text1.c

DAC0832的pretous仿真

#include 	<reg51.h>
#include  	<absacc.h>
#define		dac0832		XBYTE[0xfffe]
#define		 uchar		unsigned char
#define		uint		unsigned int
  void  delay(int i)
{
while(i--)	;
} 
void main()
{
  uchar code table[]={0xc0,0xf9,0xa4,0xb0,0x99,0x92,0x82,0xf8,0x80,0x90};
  uint i;
  while(1)
  { 
    for(i=0;i<=255;i++)
    {
      P2=0xfc;
      P0=table[i%10];
      delay(100);
      P2=0xfa;
      P0=table[(i/10)%10];
      delay(100);
      P2=0xf9;
      P0=table[i/100];
      delay(100);
      dac0832=i;
      delay(100);
    }
    if(i>=255)
      i=0;
    }
}