Connecting Sequence to Scoreboard

UVM
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4

In reply to om30:

If you want to compare the data back in sequence you will have to pass it through driver.



wait for the response back,

seq_item_port.get(req); // Start processing req item
    m_bfm.drive(req, rsp);
    rsp.set_id_info(req); // Set the rsp id = req id
    seq_item_port.put(rsp);

In driver to get the read data back,
 $cast(rsp, req.clone()); // Clone the req
  if (req.read_not_write == 1) begin
    rsp.read_data = read_data; // Copy read data response


In the sequence you can do the comparison

if(rsp.read_not_write == 1) begin
	  if (mem[rsp.addr] == rsp.read_data) begin
	  `uvm_info("seq_body", "READ WRITE MATCH", UVM_LOW)
	  end 
      else begin
		error_count++;
		`uvm_error("body", "READ WRITE ERROR")
	  end
	end 
    else begin
	  mem[req.addr] = req.write_data;
	end
  end