diff options
| -rw-r--r-- | src/tb/tb_aes.v | 24 |
1 files changed, 22 insertions, 2 deletions
diff --git a/src/tb/tb_aes.v b/src/tb/tb_aes.v index 188a21a..35fc1d9 100644 --- a/src/tb/tb_aes.v +++ b/src/tb/tb_aes.v @@ -307,6 +307,25 @@ module tb_aes(); //---------------------------------------------------------------- + // wait_ready + // + // Wait for the DUT to signal that the result is ready + //---------------------------------------------------------------- + task wait_ready; + begin : wait_ready + reg rdy; + rdy = 1'b0; + + while (rdy != 1'b1) + begin + read_word(ADDR_STATUS); + rdy = tb_read_data[STATUS_READY_BIT]; + end + end + endtask // wait_ready + + + //---------------------------------------------------------------- // read_result() // // Read the result block in the dut. @@ -386,8 +405,9 @@ module tb_aes(); write_word(ADDR_CONFIG, (8'h00 + (key_length << 1)+ encdec)); write_word(ADDR_CTRL, 8'h02); - #(100 * CLK_PERIOD); - + wait_ready(); + $display("*** Ready has been set!"); + dump_dut_state(); read_result(); if (result_data == expected) |