.. _program_listing_file_src_knx_apdu.cpp:

Program Listing for File apdu.cpp
=================================

|exhale_lsh| :ref:`Return to documentation for file <file_src_knx_apdu.cpp>` (``src/knx/apdu.cpp``)

.. |exhale_lsh| unicode:: U+021B0 .. UPWARDS ARROW WITH TIP LEFTWARDS

.. code-block:: cpp

   #include "apdu.h"
   #include "cemi_frame.h"
   #include "bits.h"
   
   APDU::APDU(uint8_t* data, CemiFrame& frame): _data(data), _frame(frame)
   {
   }
   
   ApduType APDU::type()
   {
       uint16_t apci;
       apci = getWord(_data);
       popWord(apci, _data);
       apci &= 0x3ff;
   
       if ((apci >> 6) < 11 && (apci >> 6) != 7) //short apci
           apci &= 0x3c0;
   
       return (ApduType)apci;
   }
   
   void APDU::type(ApduType atype)
   {
       // ApduType is in big endian so convert to host first, pushWord converts back
       pushWord((uint16_t)atype, _data);
   }
   
   uint8_t* APDU::data()
   {
       return _data + 1;
   }
   
   CemiFrame& APDU::frame()
   {
       return _frame;
   }
   
   uint8_t APDU::length() const
   {
       return _frame.npdu().octetCount();
   }
   
   void APDU::printPDU()
   {
       print("APDU: ");
       print(type(), HEX);
       print("  ");
       print(_data[0] & 0x3, HEX);
   
       for (uint8_t i = 1; i < length() + 1; ++i)
       {
           if (i)
               print(" ");
   
           print(_data[i], HEX);
       }
   
       println();
   }