Accessing sequencer from a Sequence

UVM
8

In reply to shanthi:

In sequence you will have a pointer m_sequencer(uvm_sequncer_base handle), which will point to the sequencer on which the sequence is started, using that pointer we can access the properties & methods of sequencer inside the sequence.


class ahb_sequence extends uvm_sequence#(ahb_xtn);
task body();
m_sequencer.lock();// m_sequencer points to the sequencer on which ahb_sequence is                   
//started i.e., ahb_sequencer
....
endtask
endclass

Regards,
Shanthi
www.maven-silicon.com

Hi Shanti,

From my understanding m_sequencer points todefault sequencer i.e uvm_sequencer_base. In order to get access to any other sequencer component we need p_sequencer and then type cast it?


class ahb_sequence extends uvm_sequence#(ahb_xtn);
  ahb_sequencer p_sequencer;

 task pre_body();
  $cast(p_sequncer, m_sequencer);
 endtask
  
  task body();
    m_sequencer.lock();// m_sequencer points to the sequencer on which ahb_sequence is                   
                      //started i.e., ahb_sequencer
     ....
  endtask
 
endclass