class awgreg_driver;

  
  awgreg_trans  	tr;

  //interface
  virtual awgreg_if 	aif;
  virtual spi_if	wif;

  int			pktnum;


  function new();
  endfunction
  extern task do_drive();
  extern task make_pkt();

endclass : awgreg_driver 

task awgreg_driver::do_drive();
  int	pkt_i = 0;

  aif.fb_st_i		=3'b0		;
  aif.run_time		=32'b0		;
  aif.instr_num		=32'b0		;
  aif.mcu_result0	=32'b0        	;   // MCU result 0
  aif.mcu_result1	=32'b0        	;   // MCU result 1
  aif.mcu_result2	=32'b0        	;   // MCU result 2
  aif.mcu_result3	=32'b0        	;   // MCU result 3


  fork
    while(1) begin
      if(pkt_i == pktnum) break;
      make_pkt();
    end
  
    repeat(pktnum) begin: kill_progress
      @(negedge wif.csn);
      pkt_i++;
    end   
  join


endtask

task awgreg_driver::make_pkt();
  int	cnt=0;

  cnt = 0;
  

  tr = new();
  if(!tr.randomize())
      $fatal(0,"Randomize Failed");
    
  while(cnt<2000) begin
    @(posedge wif.clk);

    cnt = cnt + 1;
    
    case(cnt) 
	tr.fb_st_i_time	   :
	  aif.fb_st_i		<= tr.fb_st_i		;
	tr.run_time_time   :
	  aif.run_time		<= tr.run_time		;
	tr.instr_num_time  :
	  aif.instr_num		<= tr.instr_num		;
	tr.mcu_result0_time:
	  aif.mcu_result0	<= tr.mcu_result0	;
	tr.mcu_result1_time:
	  aif.mcu_result1	<= tr.mcu_result1	;
	tr.mcu_result2_time:
	  aif.mcu_result2	<= tr.mcu_result2	;
	tr.mcu_result3_time:
	  aif.mcu_result3	<= tr.mcu_result3	;
    endcase

  end


endtask : make_pkt