Question

我有两个文件sequence_item.sv和sequencer.sv分别包含以下内容。我无法编译sequencer.sv，错误

** Error: /afs/asu.edu/users/s/m/u/smukerji/UVM_practice/sequencer.sv(6): (vlog-2730) Undefined variable: 'Packet'.

可能这是一个简单的错误。我的两个班级是

//Sequence item
import uvm_pkg::*;
`include "uvm_macros.svh"

    class Packet extends uvm_sequence_item;

        typedef enum bit [1:0] {NO_ERROR, SINGLE_ERROR, DOUBLE_ERROR, MULTIPLE_ERROR} err_type;

        rand logic [127:0] correct_data_in;
        rand logic valid_in;
        logic [136:0] corrupted_data_in;
        rand logic corrupt_valid_in;
        rand bit error;
        rand bit [127:0] err_pos;
        randc err_type error_type;
        logic [136:0] corrupt_data;

        constraint type_of_error          { (error == 0) -> error_type == NO_ERROR;    }

        constraint error_sequence { 
            if (error_type == SINGLE_ERROR)         $countones(err_pos) inside {0,1};
            else if (error_type == DOUBLE_ERROR)    $countones(err_pos) inside {1,2};
            else if (error_type == MULTIPLE_ERROR)  $countones(err_pos) inside {2,127};
            else err_pos inside {0, 0};
                      }


        `uvm_object_utils_begin(Packet)
            `uvm_field_enum(err_type, error_type, UVM_ALL_ON)
            `uvm_field_int(correct_data_in, UVM_ALL_ON|UVM_NOPACK)
            `uvm_field_int(valid_in, UVM_ALL_ON|UVM_NOPACK)
            `uvm_field_int(corrupted_data_in, UVM_ALL_ON|UVM_NOPACK)
            `uvm_field_int(corrupt_valid_in, UVM_ALL_ON|UVM_NOPACK)
            `uvm_field_int(error, UVM_ALL_ON)
            `uvm_field_int(err_pos, UVM_ALL_ON)
        `uvm_object_utils_end

        function new(string name="Packet");
            super.new(name);
        endfunction

        function logic [136:0] create_corrupt_data;
            logic [136:0] corrupt_data;
            corrupt_data = err_pos ^ correct_data_in;
            return corrupt_data;
        endfunction

        //virtual function void do_pack (uvm_packer packer);
            //super.do_pack(packer);
            //`uvm_pack_int(correct_data_in);
            //`uvm_pack_int(valid_in);
            //`uvm_pack_int(corrupted_data_in);
            //`uvm_pack_int(corrupt_valid_in);
            //packer.pack_field_int(correct_data_in,$bits(correct_data_in));
            //packer.pack_field_int(valid_in,$bits(valid_in));
            //packer.pack_field_int(corrupted_data_in,$bits(corrupted_data_in));
            //packer.pack_field_int(corrupt_valid_in,$bits(corrupt_valid_in));
        //endfunction

        //virtual function void do_unpack (uvm_packer packer );
                //super.do_unpack(packer);
                //correct_data_in = packer.unpack_field_int($bits(correct_data_in));
            //valid_in = packer.unpack_field_int($bits(valid_in));
            //corrupted_data_in = packer.unpack_field_int($bits(corrupted_data_in));
            //corrupt_valid_in = packer.unpack_field_int($bits(corrupt_valid_in));
            //endfunction


    endclass

而且，我的sequencer.sv为

//Sequencer
import uvm_pkg::*;
`include "uvm_macros.svh"


typedef uvm_sequencer #(Packet) packet_sequencer;

Answer 1

您很可能在单独的文件中分别编译这两个代码类。在一个编译单元中编译的代码对另一个编译单元是不可见的。您应该将类编译到包中。

package my_stuff;
  `include "Packet.svh"
  `include "packet_sequencer.svh"
endpackage

无法编译我的UVM类

1 个答案: