UART-Verif/monitor.sv at main · divy3988/UART-Verif · GitHub

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class monitor;

  transaction tr;

  mailbox #(bit [7:0]) mbx;

  bit [7:0] srx; //////send
  bit [7:0] rrx; ///// recv


  virtual uart_if vif;


  function new(mailbox #(bit [7:0]) mbx);
    this.mbx = mbx;
    endfunction

  task run();

    forever begin

       @(posedge vif.uclktx);
      if ( (vif.newd== 1'b1) && (vif.rx == 1'b1) )
                begin

                  @(posedge vif.uclktx); ////start collecting tx data from next clock tick

              for(int i = 0; i<= 7; i++)
              begin
                    @(posedge vif.uclktx);
                    srx[i] = vif.tx;

              end


                  $display("[MON] : DATA SEND on UART TX %0d", srx);

                  //////////wait for done tx before proceeding next transaction
                @(posedge vif.uclktx); //
                mbx.put(srx);

               end

      else if ((vif.rx == 1'b0) && (vif.newd == 1'b0) )
        begin
          wait(vif.donerx == 1);
           rrx = vif.doutrx;
           $display("[MON] : DATA RCVD RX %0d", rrx);
           @(posedge vif.uclktx);
           mbx.put(rrx);
      end
  end
endtask


endclass