diff options
Diffstat (limited to 'src/tb')
| -rw-r--r-- | src/tb/tb_mixer.v | 127 |
1 files changed, 100 insertions, 27 deletions
diff --git a/src/tb/tb_mixer.v b/src/tb/tb_mixer.v index c135b61..b08533a 100644 --- a/src/tb/tb_mixer.v +++ b/src/tb/tb_mixer.v @@ -59,14 +59,34 @@ module tb_mixer(); //---------------------------------------------------------------- // Register and Wire declarations. //---------------------------------------------------------------- - reg [31 : 0] cycle_ctr; - reg [31 : 0] error_ctr; - reg [31 : 0] tc_ctr; + reg [31 : 0] cycle_ctr; + reg [31 : 0] error_ctr; + reg [31 : 0] tc_ctr; + + reg tb_clk; + reg tb_reset_n; + reg tb_enable; + reg tb_more_seed; + + reg tb_entropy0_enabled; + reg tb_entropy0_syn; + reg [31 : 0] tb_entropy0_data; + wire tb_entropy0_ack; + + reg tb_entropy1_enabled; + reg tb_entropy1_syn; + reg [31 : 0] tb_entropy1_data; + wire tb_entropy1_ack; + + reg tb_entropy2_enabled; + reg tb_entropy2_syn; + reg [31 : 0] tb_entropy2_data; + wire tb_entropy2_ack; + + wire [511 : 0] tb_seed_data; + wire tb_syn; + reg tb_ack; - reg tb_clk; - reg tb_reset_n; - reg tb_enable; - //---------------------------------------------------------------- // Device Under Test. @@ -74,20 +94,28 @@ module tb_mixer(); trng_mixer dut( .clk(tb_clk), .reset_n(tb_reset_n), - .enable(), - .more_seed(), - .entropy0_enabled(), - .entropy0_syn(), - .entropy0_ack(), - .entropy1_enabled(), - .entropy1_syn(), - .entropy1_ack(), - .entropy2_enabled(), - .entropy2_syn(), - .entropy2_ack(), - .seed_data(), - .seed_syn(), - .seed_ack() + + .enable(tb_enable), + .more_seed(tb_more_seed), + + .entropy0_enabled(tb_entropy0_enabled), + .entropy0_syn(tb_entropy0_syn), + .entropy0_data(tb_entropy0_data), + .entropy0_ack(tb_entropy0_ack), + + .entropy1_enabled(tb_entropy1_enabled), + .entropy1_syn(tb_entropy1_syn), + .entropy1_data(tb_entropy1_data), + .entropy1_ack(tb_entropy1_ack), + + .entropy2_enabled(tb_entropy2_enabled), + .entropy2_syn(tb_entropy2_syn), + .entropy2_data(tb_entropy2_data), + .entropy2_ack(tb_entropy2_ack), + + .seed_data(tb_seed_data), + .seed_syn(tb_syn), + .seed_ack(tb_ack) ); @@ -182,18 +210,61 @@ module tb_mixer(); //---------------------------------------------------------------- task init_sim(); begin - cycle_ctr = 0; - error_ctr = 0; - tc_ctr = 0; + cycle_ctr = 0; + error_ctr = 0; + tc_ctr = 0; + + tb_clk = 0; + tb_reset_n = 1; + + tb_enable = 0; + tb_more_seed = 0; + + tb_entropy0_enabled = 0; + tb_entropy0_syn = 0; + tb_entropy0_data = 32'h00000000; - tb_clk = 0; - tb_reset_n = 1; - tb_enable = 0; + tb_entropy1_enabled = 0; + tb_entropy1_syn = 0; + tb_entropy1_data = 32'h00000000; + + tb_entropy2_enabled = 0; + tb_entropy2_syn = 0; + tb_entropy2_data = 32'h00000000; + + tb_ack = 0; end endtask // init_sim //---------------------------------------------------------------- + // tc1_gen_seeds() + // + // A simple first testcase that tries to make the DUT generate + // a number of seeds based on entropy from source 0 and 2. + //---------------------------------------------------------------- + task tc1_gen_seeds(); + begin + $display("*** Starting TC1: Setting continious seed generation."); + tb_entropy0_enabled = 1; + tb_entropy0_syn = 1; + tb_entropy0_data = 32'h01010202; + + tb_entropy2_enabled = 1; + tb_entropy2_syn = 1; + tb_entropy2_data = 32'haa55aa55; + + tb_enable = 1; + tb_more_seed = 1; + tb_ack = 1; + + #(50000 * CLK_PERIOD); + $display("*** TC1 done."); + end + endtask // tc1_gen_seeds + + + //---------------------------------------------------------------- // mixer_test // // The main test functionality. @@ -210,6 +281,8 @@ module tb_mixer(); reset_dut(); dump_dut_state(); + tc1_gen_seeds(); + display_test_results(); $display(""); |