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Error in UVM code

sree205

Hi,

I'm getting the following error when running the UVM code present in the following location. There is a sequence_item example which is present.

www.verificationguide.com/.../uvm-sequence-item.html

When i run it with the following command,

ncvlog -sv -uvmaccess -incdir $UVM_HOME/src mem_seq_item_example.sv

i'm getting the following error.


Can someone suggest why i'm getting the error ? I'm not importing the uvm_pkg in the code coz i've used "-uvmaccess" in the command.


Error I got is :

ncvlog: 14.20-s009: (c) Copyright 1995-2015 Cadence Design Systems, Inc.
class mem_seq_item extends uvm_object;
                                                                     |
ncvlog: *E,SVNOTY (mem_seq_item_example.sv,12|36): Syntactically this identifier appears to begin a datatype but it does not refer to a visible datatype in the current scope.


Suggestions are very much welcome.


~sree205.

Parents
  • Hi,

    The code which i'm trying to compile is this.

    `include "uvm_macros.svh"

    //-------------------------------------------------------------------------
    //Simple TestBench to access sequence item
    //-------------------------------------------------------------------------
    module seq_item_tb;

    import uvm_pkg::*;

    class mem_seq_item extends uvm_object;
    //data and control fields
    rand bit [3:0] addr;
    rand bit wr_en;
    rand bit rd_en;
    rand bit [7:0] wdata;
    bit [7:0] rdata;

    //Utility and Field macros,
    `uvm_object_utils_begin(mem_seq_item)
    `uvm_field_int(addr,UVM_ALL_ON)
    `uvm_field_int(wr_en,UVM_ALL_ON)
    `uvm_field_int(rd_en,UVM_ALL_ON)
    `uvm_field_int(wdata,UVM_ALL_ON)
    `uvm_object_utils_end


    //Constructor
    function new(string name = "mem_seq_item");
    super.new(name);
    endfunction

    //constaint, to generate any one among write and read
    constraint wr_rd_c { wr_en != rd_en;}

    endclass


    //instance
    mem_seq_item seq_item_0;
    mem_seq_item seq_item_1;

    /* initial begin
    //create method
    seq_item_0 = mem_seq_item::type_id::create("seq_item_0");

    seq_item_0.randomize(); //randomizing the seq_item
    seq_item_0.print(); //printing the seq_item_0

    //clone method
    $cast(seq_item_1,seq_item_0.clone()); //create seq_item_1 and copy seq_item_0 to seq_item_1

    //changing the seq_item_1 values will not reflect on seq_item_0 values.
    seq_item_1.addr = 8;
    seq_item_1.wdata = 'h56;
    `uvm_info("","Printing seq_item_0", UVM_LOW)
    seq_item_0.print(); //printing the seq_item_0
    `uvm_info("","Printing seq_item_1", UVM_LOW)
    seq_item_1.print(); //printing the seq_item_1

    //Note:: name of seq_item_1 will be printed as seq_item_0, because there is no option to pass argument to create method while calling the clone method.
    end
    */
    endmodule

    Error i'm getting is this :

    irun
    -uvm
    copy_vs_clone.sv
    Compiling UVM packages (uvm_pkg.sv cdns_uvm_pkg.sv) using uvmhome location /global/snps_apps/incisiv_14.20.009/linux/tools/methodology/UVM/CDNS-1.1d
    import uvm_pkg::*;
    |
    ncvlog: *E,MULPAK (/global/snps_apps/incisiv_14.20.009/linux/tools/methodology/UVM/CDNS-1.1d/additions/sv/cdns_uvmapi.svp,4|16): Multiple (2) packages named "uvm_pkg" were found in the searched libraries:
    -> found verilog_package worklib.uvm_pkg:verilog_package (VST)
    -> found verilog_package worklib.uvm_pkg:sv (VST).
    (protected source, `include file: /global/snps_apps/incisiv_14.20.009/linux/tools/methodology/UVM/CDNS-1.1d/additions/sv/cdns_uvmapi.svp line 116, file: /global/snps_apps/incisiv_14.20.009/linux/tools/methodology/UVM/CDNS-1.1d/additions/sv/cdns_uvm_pkg.sv line 22)
    import uvm_pkg::*;
    |
    ncvlog: *E,NOPBIND (/global/snps_apps/incisiv_14.20.009/linux/tools/methodology/UVM/CDNS-1.1d/additions/sv/cdns_uvmapi.svp,4|16): Package uvm_pkg could not be bound.
    (protected source, `include file: /global/snps_apps/incisiv_14.20.009/linux/tools/methodology/UVM/CDNS-1.1d/additions/sv/cdns_uvmapi.svp line 116, file: /global/snps_apps/incisiv_14.20.009/linux/tools/methodology/UVM/CDNS-1.1d/additions/sv/cdns_uvm_pkg.sv line 22)
Reply
  • Hi,

    The code which i'm trying to compile is this.

    `include "uvm_macros.svh"

    //-------------------------------------------------------------------------
    //Simple TestBench to access sequence item
    //-------------------------------------------------------------------------
    module seq_item_tb;

    import uvm_pkg::*;

    class mem_seq_item extends uvm_object;
    //data and control fields
    rand bit [3:0] addr;
    rand bit wr_en;
    rand bit rd_en;
    rand bit [7:0] wdata;
    bit [7:0] rdata;

    //Utility and Field macros,
    `uvm_object_utils_begin(mem_seq_item)
    `uvm_field_int(addr,UVM_ALL_ON)
    `uvm_field_int(wr_en,UVM_ALL_ON)
    `uvm_field_int(rd_en,UVM_ALL_ON)
    `uvm_field_int(wdata,UVM_ALL_ON)
    `uvm_object_utils_end


    //Constructor
    function new(string name = "mem_seq_item");
    super.new(name);
    endfunction

    //constaint, to generate any one among write and read
    constraint wr_rd_c { wr_en != rd_en;}

    endclass


    //instance
    mem_seq_item seq_item_0;
    mem_seq_item seq_item_1;

    /* initial begin
    //create method
    seq_item_0 = mem_seq_item::type_id::create("seq_item_0");

    seq_item_0.randomize(); //randomizing the seq_item
    seq_item_0.print(); //printing the seq_item_0

    //clone method
    $cast(seq_item_1,seq_item_0.clone()); //create seq_item_1 and copy seq_item_0 to seq_item_1

    //changing the seq_item_1 values will not reflect on seq_item_0 values.
    seq_item_1.addr = 8;
    seq_item_1.wdata = 'h56;
    `uvm_info("","Printing seq_item_0", UVM_LOW)
    seq_item_0.print(); //printing the seq_item_0
    `uvm_info("","Printing seq_item_1", UVM_LOW)
    seq_item_1.print(); //printing the seq_item_1

    //Note:: name of seq_item_1 will be printed as seq_item_0, because there is no option to pass argument to create method while calling the clone method.
    end
    */
    endmodule

    Error i'm getting is this :

    irun
    -uvm
    copy_vs_clone.sv
    Compiling UVM packages (uvm_pkg.sv cdns_uvm_pkg.sv) using uvmhome location /global/snps_apps/incisiv_14.20.009/linux/tools/methodology/UVM/CDNS-1.1d
    import uvm_pkg::*;
    |
    ncvlog: *E,MULPAK (/global/snps_apps/incisiv_14.20.009/linux/tools/methodology/UVM/CDNS-1.1d/additions/sv/cdns_uvmapi.svp,4|16): Multiple (2) packages named "uvm_pkg" were found in the searched libraries:
    -> found verilog_package worklib.uvm_pkg:verilog_package (VST)
    -> found verilog_package worklib.uvm_pkg:sv (VST).
    (protected source, `include file: /global/snps_apps/incisiv_14.20.009/linux/tools/methodology/UVM/CDNS-1.1d/additions/sv/cdns_uvmapi.svp line 116, file: /global/snps_apps/incisiv_14.20.009/linux/tools/methodology/UVM/CDNS-1.1d/additions/sv/cdns_uvm_pkg.sv line 22)
    import uvm_pkg::*;
    |
    ncvlog: *E,NOPBIND (/global/snps_apps/incisiv_14.20.009/linux/tools/methodology/UVM/CDNS-1.1d/additions/sv/cdns_uvmapi.svp,4|16): Package uvm_pkg could not be bound.
    (protected source, `include file: /global/snps_apps/incisiv_14.20.009/linux/tools/methodology/UVM/CDNS-1.1d/additions/sv/cdns_uvmapi.svp line 116, file: /global/snps_apps/incisiv_14.20.009/linux/tools/methodology/UVM/CDNS-1.1d/additions/sv/cdns_uvm_pkg.sv line 22)
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