Adding functionality to support both SHA224 and SHA256 digest modes. Note: This update changes the ADDR_CTRL API register since it adds a mode bit. The version major number has been bumped to reflect this API change. The top level testbench contains tests for SHA224 as well as old tests for SHA256. The core level tb still only tests SHA256.

1 files changed, 3 insertions, 0 deletions

diff --git a/src/tb/tb_sha256_core.v b/src/tb/tb_sha256_core.v
index 07e2334..981351c 100644
--- a/src/tb/tb_sha256_core.v
+++ b/src/tb/tb_sha256_core.v
@@ -68,6 +68,7 @@ module tb_sha256_core();
   reg            tb_reset_n;
   reg            tb_init;
   reg            tb_next;
+  reg            tb_mode;
   reg [511 : 0]  tb_block;
   reg  [31 : 0]  tb_state_wr_data;
   reg            tb_state0_we;
@@ -92,6 +93,7 @@ module tb_sha256_core();
 
                   .init(tb_init),
                   .next(tb_next),
+                  .mode(tb_mode),
 
                   .block(tb_block),
 
@@ -244,6 +246,7 @@ module tb_sha256_core();
 
       tb_init          = 0;
       tb_next          = 0;
+      tb_mode          = 1;
       tb_block         = 512'h0;
       tb_state_wr_data = 32'h0;
       tb_state0_we     = 0;