原创 AD7793驱动程序，但愿有用

#include "Ad7793.h"

void Dly(unsigned int di)
 {
   unsigned int di1;
   for(di1=0;di1<di;di1++);
 
 
 }

void Ad7793Reset(void)   //Ad7793复位
   {
    
    
      unsigned char i;
      SPIM_Start(SPIM_SPIM_MODE_0|SPIM_SPIM_MSB_FIRST);

      PRT1DR&=~0x80;  //cs=0
      for(i=0;i<5;i++)
       {
        while( ! (SPIM_bReadStatus() & SPIM_SPIM_TX_BUFFER_EMPTY ) );
        SPIM_SendTxData(0xff);
       }
      PRT1DR|=0x80;  //cs=1
      Dly(10);
   
    }
void Ad7793Write(unsigned char iReg,unsigned char *iTxbuff,unsigned char iLen)//将iTxbuff数据写入iAddress地址开始iLen字节
   {
      unsigned char i;
      SPIM_Start(SPIM_SPIM_MODE_0|SPIM_SPIM_MSB_FIRST);
      PRT1DR&=~0x80;  //cs=0
      Dly(500);
      while( ! (SPIM_bReadStatus() & SPIM_SPIM_TX_BUFFER_EMPTY ) );
      SPIM_SendTxData(iReg);
      Dly(100);
      for(i=0;i<iLen;i++)
       {
        while( ! (SPIM_bReadStatus() & SPIM_SPIM_TX_BUFFER_EMPTY ) );
        SPIM_SendTxData(iTxbuff);
      
        }
      Dly(500); 
      PRT1DR|=0x80;  //cs=1
  
   
    }