Change the RTL top parameter from test

UVM
,
1

Hi All,

I would like to request for your help in getting best implementation method for RTL top Parameter change, based on different testcase.

Let me give you a some background.

I have a DUT which has top level Parameters/Generics. I have built an UVM based testbench for this DUT, using the example code “Parameterised Virtual Interface” from the below link.
https://verificationacademy.com/cookbook/code-examples

So based on this code, I have a class inside tb_params_pkg.sv file where the parameter values are defined.
like this:

class SFR;

  localparam sfr_addr_width = 16;
  localparam sfr_data_width = 32;

endclass

In my hdl_top file I use this class value to configure my agent and DUT parameters
Like this:

sfr_master_bfm #(.ADDR_WIDTH(SFR::sfr_addr_width), 
                 .DATA_WIDTH(SFR::sfr_data_width)) SFR_MASTER(.clk(clk),
                                                              .reset(reset),
                                                              .address(address),
                                                              .write_data(write_data),
                                                              .read_data(read_data),
                                                              .re(re),
                                                              .we(we));


sfr_dut #(.ADDR_WIDTH(SFR::sfr_addr_width),
          .DATA_WIDTH(SFR::sfr_data_width))
        dut (.clk(clk),
             .reset(reset),
             .address(address),
             .write_data(write_data),
             .we(we),
             .re(re),
             .read_data(read_data));

These Parameter Values may change depending on different test scenarios.

So i want to create different test cases which will have different values for these parameters.

I would like to know what would be the best way to implement this requirement.

Any help would be appreciated.

Thanks.

2

In reply to jerin:

Please use code tags making your code easier to read. I have added them for you.

You may want to look at this page, and the links to the referenced DVCon papers.