how to pass value to a variable that is a derivation of uvm_object and not uvm_component

[arb]

Hi,

problem statement: I wanted to set a value to a variable that is derived of a uvm_object. I wanted to use the get/.set method

 

prvious code snippet:

 

function new(int len = 0)

  if(len > 0)

    this.length = len;

  else

    ERROR

endfunction

 

Given that now the UVM constructor has to be like 

function new(string name ="");

  super.new(name);

endfunction

 

I wanted to set the len, variable using the set method.

1) however the set/get method requires a logical hierarchy, given that this object is instantiated in a sequence object, I don't know what which way can you pass the sequence_item hierarchy. 

2) Also given that the ojbect does not have phasing involved unless I pass the value in some function and call the function explicitly it doesn't seem like it will work.

 

I wanted to know if there is an elegant way to do so?

 

Thanks,

Ankur

 

 

 

[arb]

Additional Info:

The variable is inside a class that gets instantiated inside the sequence_item. Like,

 

class pkt;

  cfg_pkt cfg_hndl;

 ...

endclass

 

class cfg_pkt extends uvm_object;

 

 int len;

Where to write this?

<<<<uvm_config_db #int::get(this,????,"len",len);>>>>>

OR

Given that the pkt class is tied to the sequencer, would it be like:

class pkt;

  task body();

    uvm_config_db#int::get(this.get_sequencer(),"","len",cfg_hndl.len);

  endtask

 

endclass

 

thanks,

Ankur

[arb]

The problem with

uvm_cofnig_db#(int)::get(this.get_sequencer(),"","len",cfg_hdnl.len); is that,

the 3rd argument "len" is not a member of pkt class, so how do you pass the string name for len?

 

Thanks,

Ankur

[tudor.timi]

You could work around the issue by doing something like:

task body();
  int len;
  uvm_config_db#int::get(this.get_sequencer(),"","len",len);
  cfg_hndl.len = len;

  // ...
endtask