In AXI3 VIP, getting assertion error as well default transaction type is being picked up with values zeroes being displayed

SystemVerilog
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2

In reply to saikanthan7798:

You should never use an assert statement with a call to randomize(). Instead, you should use the return code to determine if the call was successful:


case(cfg_axi::testname)
  "TEST_10_WR_TX":begin
    for(int i=0;i<9;i=i+1) begin
      tx=new();
      if (!(tx.randomize() with {tx.tx_type == WRITE;}))
        $display("Randomization failed!");
      else
        cfg_axi::gen2bfm.put(tx);
    end
  end

In this case, you would receive the error message that the call to randomize() failed.

You would then focus on the error message:

axi_gen:: inside gen

gen.sv(10): randomize() failed due to conflicts between the following constraints:

gen.sv(10): (tx_type == WRITE);

Where:

tx_type = READ /* non-random */

In the axi_tx class, tx_type is not declared as ‘rand’, hence it can’t be randomized.