diff options
| author | Joachim StroĢmbergson <joachim@secworks.se> | 2015-09-07 12:29:52 +0200 |
|---|---|---|
| committer | Joachim StroĢmbergson <joachim@secworks.se> | 2015-09-07 12:29:52 +0200 |
| commit | cf512b20d938fb36eb987d90d6ada7830ff42002 (patch) | |
| tree | ade2cb29f90d1f92cfd563d4f0114ef2ffd3c3cc /src | |
| parent | bfc89244c0e04c4edfc27f4f62a8dbb63f48bd36 (diff) | |
(1) Debugged the block stat counter. (2) Added missing port type. (3) Removed second define for default number of blocks.
Diffstat (limited to 'src')
| -rw-r--r-- | src/rtl/trng_csprng.v | 12 |
1 files changed, 9 insertions, 3 deletions
diff --git a/src/rtl/trng_csprng.v b/src/rtl/trng_csprng.v index ce5b50f..d33e72a 100644 --- a/src/rtl/trng_csprng.v +++ b/src/rtl/trng_csprng.v @@ -49,7 +49,7 @@ module trng_csprng( output wire error, input wire discard, - input test_mode, + input wire test_mode, output wire more_seed, output wire security_error, @@ -118,7 +118,6 @@ module trng_csprng( localparam CTRL_CANCEL = 4'hf; localparam DEFAULT_NUM_ROUNDS = 5'h18; - localparam DEFAULT_NUM_BLOCKS = 64'h1000000000000000; localparam DEFAULT_NUM_BLOCKS = 64'h0000000001000000; parameter CORE_NAME0 = 32'h63737072; // "cspr" @@ -154,6 +153,7 @@ module trng_csprng( reg [63 : 0] block_stat_ctr_reg; reg [63 : 0] block_stat_ctr_new; + reg block_stat_ctr_we; reg [31 : 0] reseed_stat_ctr_reg; reg [31 : 0] reseed_stat_ctr_new; @@ -321,6 +321,10 @@ module trng_csprng( if (block_ctr_we) begin block_ctr_reg <= block_ctr_new; + end + + if (block_stat_ctr_we) + begin block_stat_ctr_reg <= block_stat_ctr_new; end @@ -479,6 +483,7 @@ module trng_csprng( block_ctr_we = 1'b0; block_ctr_max = 1'b0; block_stat_ctr_new = {2{32'h00000000}}; + block_stat_ctr_we = 1'b0; if (block_ctr_rst) begin @@ -489,8 +494,9 @@ module trng_csprng( if (block_ctr_inc) begin block_ctr_new = block_ctr_reg + 1'b1; - block_stat_ctr_new = block_stat_ctr_reg + 1'b1; block_ctr_we = 1; + block_stat_ctr_new = block_stat_ctr_reg + 1'b1; + block_stat_ctr_we = 1; end if ((block_ctr_reg == {num_blocks_high_reg, num_blocks_low_reg}) || |