da.c

12位11通道AD转换芯片tlv2553,12位双通道DA转换芯片tlv5638

#include"group.h"


extern void DA_send(unsigned int ch)
{
   unsigned char i;
   for(i=0;i<16;i++)
   { 
      DA_CLK=0;
      if((ch&0x8000)==0x8000)
         DA_ADD=1;
      else
	     DA_ADD=0;
	  DA_CLK=1;
	  ch<<=1;
   }
   DA_CLK=0;
}
//----------
extern void DA_IN(unsigned int ch)
{
   DA_CS=0;
   DA_send(ch);
   DA_CS=1;
}
//----------------------
extern void DA_main(void)
{ 
    unsigned int i,j=0;
    unsigned int add=0xc000;    
    DA_IN(0xd002);
    while(1)
    {
       if(j<0x5)
	   {
	      DA_IN(0x5000+j*0x2aa);
	      for(i=0;i<0x19;i++)
          {
             add+=0x0050;
		     DA_IN(add);
          }
          if(i>=0x19){i=0;add=0xc000;j++;}
		  if(j==5)j=0;
	   }
    }
}