//DA TLC5620
#include <reg52.h>
#include <stdio.h>
#include <absacc.h>
#define uchar unsigned char
#define uint unsigned int
sbit dacload=P1^0;
sbit dacclk=P1^1;
sbit dacdata=P1^2;
void delay1(uchar x);
void writedac(uchar x);
void dacck(void);
void delay1(uchar x) { 
   uchar i; 
   for(i=0;i<x;i++); 
}
void dacck(void) {  
   dacclk=1; delay1(2); 
   dacclk=0; delay1(2); 
}
void writedac(uchar x)
{  uchar i;
   ch=x;  dacload=1;
   dacdata=0; dacck(); dacdata=0; dacck(); dacdata=1; dacck();
   for (i=0; i<8; i++) { ch=ch<<1; dacdata=CY; dacck(); }
   dacload=0; delay1(2); dacload=1; delay1(2);
}
//http://mcu.wx-e.com/  电子世纪  提供！