simple_target_socket_tagged

[Amol Nikade]

Can I get Example of How can we use - simple_target_socket_tagged.

I have one component, that can be requested by N peripherals, so that I wanted to use tagged socket in my component to serve N peripherals with only one b_transport API call.

Also How can I Identify which socket has called b_transport function ?

[Eyck]

the simple_target_socket_tagged does tell the callback which socket called the callback not which initiator. So you need to have a target socket for each of your peripherals.

A use example of tagged sockets can be found at https://www.doulos.com/httpswwwdouloscomknowhow/systemc/tlm-20/tutorial-3-routing-methods-through-interconnect-components/ where simple_initiator_socket_:tagged is used for the router. The use of simple_target_socket_tagged is similar.

[Amol Nikade]

Thanks Eyck, will check in given link.

[Amol Nikade]

Hi Eyck,

I am facing some below issue while binding initiator and target socket.

---------------------------------------------------------------------------------------------

Simple Module:

class ABC : public sc_module {
    public: 
    SC_HAS_PROCESS(ABC );
    ABC (sc_module_name nm, bool log_enable);

    ~ABC ();
    tlm_utils::simple_target_socket_tagged<ABC , 32>* t_socket [11];
   
};

ABC ::ABC (sc_module_name ABC) : 
    sc_module(nm)
  {
     for(unsigned int id=0;id<11;id++)
     {
            char txt[20];
          sprintf(txt, "socket_%d", id);
          t_socket [id] = new tlm_utils::simple_target_socket_tagged<ABC,32>(txt);   
    }
}

-----------------------------------------------------------------------------------------------------------------

TestBench:

class testbench: public sc_module
{
    public:
     sc_in<bool> i_clk;
    SC_HAS_PROCESS(testbench);
    testbench(sc_module_name nm) : sc_module(nm)
       {

           
        m_abc = new ABC("ABC");
          for(unsigned int i=0;i<11;i++)
          {
                  char txt[20];
                sprintf(txt, "socket_%d", i);
                 o_tb[i]= new tlm_utils::simple_initiator_socket<testbench, 32>(txt);

                 o_tb[i]->bind(m_abc->t_socket [i]); // Facing issue while binding 
        }
         tlm_utils::simple_initiator_socket<testbench, 32>* o_tb [11];
        
    protected:
    ABC *m_abc;

}

-----------------------------------------------------------------------------------

error: no matching function for call to ‘tlm_utils::simple_initiator_socket<testbench, 32u>::bind(tlm_utils::simple_target_socket_tagged<ABC, 32u>*&)’
             o_tb[i]->bind(m_abc->t_socket [i]);

 

can you please comment, why I am getting binding issue.

 

 

 

 

 

 

 

[Eyck]

Well, t_socket[i] is a pointer. So with

o_tb[i]->bind(m_abc->t_socket[i]); 

you are calling bind with a pointer. There is no such function defined.

I would suggest to refrain from using raw pointers and C-style arrays as they harm more than helping you. I coded up an example at https://www.edaplayground.com/x/MTTy

If you are going to build up a really big design then you should use a std::unique_ptr with std::make_unique in your sc_main function only. This way all design elements will be instantiated using a single new call...

[Amol Nikade]

Thanks Eyck, It helps.