这个C语言转换程序看不明白。有大佬能说明一下都是干什么的，什么作用么?

ID:747076 · 发表于 2020-5-24 13:43

uint adc0832(unsigned char CH)
{
  uchar i,test,adval;
  adval = 0x00;
  test = 0x00;
  Clk = 0;
  DATI = 1;
  _nop_(); _nop_();
  CS = 0;
  _nop_();
  Clk = 1;
  _nop_();  _nop_();
if(CH == 0x00)
{
   Clk = 0;
   DATI = 1;
   _nop_();
   Clk = 1;
   _nop_();  _nop_();

   Clk = 0;
   DATI = 0;
   _nop_();  _nop_();

   Clk = 1;
   _nop_();
}
else
{
   Clk = 0;
   DATI = 1;
      _nop_();  _nop_();

   Clk = 1;
      _nop_();  _nop_();

   Clk = 0;
   DATI = 1;
   _nop_();
   Clk = 1;
   _nop_();
}
   Clk = 0; _nop_();

   DATI = 1;
for( i = 0;i < 8;i++ )
{
   _nop_();
   adval <<= 1;
   Clk = 1;
   _nop_();  _nop_();

   Clk = 0;          _nop_();

   if (DATO)
      adval |= 0x01;
   else
      adval |= 0x00;
}
  for (i = 0; i < 8; i++)
   {
         test >>= 1;
         if (DATO)
            test |= 0x80;
         else
            test |= 0x00;
      _nop_();
      Clk = 1;
      _nop_();  _nop_();

      Clk = 0; _nop_();

   }
  if (adval == test)
   dat = test;
   _nop_();  _nop_();
   CS = 1;
   DATO = 1;
   Clk = 1;
   return dat;

}

ID:70069 · 发表于 2020-5-24 22:37

uint adc0832(unsigned char CH)
{
  uchar i,test,adval;
  adval = 0x00;
  test = 0x00;
  Clk = 0;
  DATI = 1;
  CS = 0;
  Clk = 1;
if(CH == 0x00) //选择通道
{
   Clk = 0;//这段是选通道0
   DATI = 1;
   Clk = 1;
   Clk = 0;
   DATI = 0;
      Clk = 1;
}
else
{
   Clk = 0;//这段是选择通道1
   DATI = 1;
   Clk = 1;
   Clk = 0;
   DATI = 1;
   Clk = 1;
}
   Clk = 0;

   DATI = 1;
for( i = 0;i < 8;i++ ) //读取8位数据高位在前
{
      adval <<= 1;
   Clk = 1;
   Clk = 0;

   if (DATO)
      adval |= 0x01;
   else
      adval |= 0x00;
}
  for (i = 0; i < 8; i++)  //读取8位数据低位在前，也就是上面一段反这读取。
   {
         test >>= 1;
         if (DATO)
            test |= 0x80;
         else
            test |= 0x00;
         Clk = 1;
      Clk = 0;
   }
  if (adval == test)    //进行校验，如果相同则数据正确，
   dat = test;
   CS = 1;
   DATO = 1;
   Clk = 1;
   return dat;

}

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