set_sequence_id error

[omahesh]

Hi everyone,

I'm trying to run below testcase;

class mdio_normal_test extends uvm_test;

mdio_env env_0;

mdio_sequencer sequencer_0;

`uvm_component_utils(mdio_normal_test)

function new(string name = "mdio_normal_test",uvm_component parent = null);

super.new(name,parent);

endfunction

virtual function void build_phase(uvm_phase phase);

super.build_phase(phase);

env_0 = mdio_env::type_id::create("env_0",this);

//set_config_int("env_0.agent_0","is_active",UVM_ACTIVE);

endfunction : build_phase

function void end_of_elaboration_phase(uvm_phase phase);

$cast(sequencer_0,this.env_0.agent_0.sequencer);

sequencer_0.count = 1;

endfunction:end_of_elaboration_phase

task run_phase(uvm_phase phase);

mdio_normal_seq inst_mdio_normal_seq;

phase.raise_objection(this);

inst_mdio_normal_seq = mdio_normal_seq::type_id::create("inst_mdio_normal_seq");

void'(inst_mdio_normal_seq.randomize());

inst_mdio_normal_seq.start(env_0.agent_0.sequencer);

#1us;

phase.drop_objection(this);

endtask

endclass

After compiling it is showing the following error;

//////////////////////////

*F,CUVUNF (/home/tools/cadence102/tools/uvm-1.1/src/seq/uvm_sequencer_param_base.svh,294|24): Hierarchical name component

lookup failed at 'set_sequence_id'.

/////////////////////////

can anyone help me in this regard?

regards,

mahee

[whiteriver]

I'm not familiar with the sequencer being declared in the run_phase, but apart from this, I don't see the sequence being registered to the sequencer.

In the build_phase there should be something like:

uvm_config_db#(uvm_object_wrapper)::set(this, "*my_tb.my_env.my_agent.sequencer.run_phase", "default_sequence", a_test_sequence::type_id::get());

Edited September 5, 2012 by whiteriver

[jadec]

This error is triggered by creating a parameterized sequencer using a type that it not a subclass of uvm_sequence_item. For example, "uvm_sequencer#(uvm_object)".