max526.h

51单片机控制DAC（TLV5614）的数据输出

#include<absacc.h>

sbit P2_0=P2^0;
sbit P2_1=P2^1;
sbit P2_2=P2^2;

#define DA_HIGH_CHANNEL_0  XBYTE[0x8200]
#define DA_LOW_CHANNEL_0   XBYTE[0x8300]
#define DA_HIGH_CHANNEL_1  XBYTE[0x8a00]
#define DA_LOW_CHANNEL_1   XBYTE[0x8b00]
#define DA_HIGH_CHANNEL_2  XBYTE[0x9200]
#define DA_LOW_CHANNEL_2   XBYTE[0x9300]
#define DA_HIGH_CHANNEL_3  XBYTE[0x9a00]
#define DA_LOW_CHANNEL_3   XBYTE[0x9b00]

sbit LDAC=P1^3;

void MAX_526(uchar channel,uint da_value)
{
   LDAC=1;
   switch(channel)
   {
     case 0:
      {
      DA_LOW_CHANNEL_0  = (uchar)( da_value & 0x00ff ); 
      DA_HIGH_CHANNEL_0 = (uchar)( da_value>>8 ); 
	  break;
	  }
     case 1:
      {
      DA_LOW_CHANNEL_1  = (uchar)( da_value & 0x00ff ); 
      DA_HIGH_CHANNEL_1 = (uchar)( da_value>>8 );
	  break;
	  }
     case 2:
      {
      DA_LOW_CHANNEL_2  = (uchar)( da_value & 0x00ff ); 
      DA_HIGH_CHANNEL_2 = (uchar)( da_value>>8 ); 
	  break;
	  }
     case 3:
      {
      DA_LOW_CHANNEL_3  = (uchar)( da_value & 0x00ff ); 
      DA_HIGH_CHANNEL_3 = (uchar)( da_value>>8 ); 
	  break;
	  }
	  default: break;
   }
   LDAC=0; 
}