Adding delay cycle to API regs to match the latency for accessing the blockRAM. Added test case that checks access to the API regs.

1 files changed, 24 insertions, 0 deletions

diff --git a/src/tb/tb_keywrap.v b/src/tb/tb_keywrap.v
index c28b5a6..412bdb2 100644
--- a/src/tb/tb_keywrap.v
+++ b/src/tb/tb_keywrap.v
@@ -359,6 +359,28 @@ module tb_keywrap();
 
 
   //----------------------------------------------------------------
+  // test_core_access
+  // Simple test that we can perform read access to regs
+  // in the core.
+  //----------------------------------------------------------------
+  task test_core_access;
+    begin : test_core_access
+      $display("** TC test_core_access START.");
+
+      read_word(ADDR_NAME0);
+      $display("NAME0: %s", read_data);
+      read_word(ADDR_NAME1);
+      $display("NAME1: %s", read_data);
+      read_word(ADDR_VERSION);
+      $display("version: %s", read_data);
+      $display("");
+
+      $display("** TC test_core_access END.");
+    end
+  endtask // test_core_access
+
+
+  //----------------------------------------------------------------
   // test_kwp_ae_128_1
   // Implements wrap test based on NIST KWP_AE 128 bit key
   // with 248 bit plaintext.
@@ -949,6 +971,8 @@ module tb_keywrap();
       reset_dut();
       dump_dut_state();
 
+      test_core_access();
+
       test_kwp_ae_128_1();
       test_kwp_ad_128_1();
       test_kwp_ae_128_2();