diff options
Diffstat (limited to 'src/rtl')
| -rw-r--r-- | src/rtl/external_avalanche_entropy.v | 24 |
1 files changed, 19 insertions, 5 deletions
diff --git a/src/rtl/external_avalanche_entropy.v b/src/rtl/external_avalanche_entropy.v index 3f1c3f9..a5b6881 100644 --- a/src/rtl/external_avalanche_entropy.v +++ b/src/rtl/external_avalanche_entropy.v @@ -61,7 +61,8 @@ module external_avalanche_entropy( input wire entropy_read, output wire entropy_ready, output wire [31 : 0] entropy_data, - output wire [7 : 0] debug + output wire [7 : 0] debug, + output wire [7 : 0] debug2 ); @@ -149,6 +150,7 @@ module external_avalanche_entropy( assign entropy_ready = entropy_ready_reg; assign entropy_data = entropy_reg; assign debug = debug_reg; + assign debug2 = debug_reg; assign read_data = tmp_read_data; assign error = tmp_error; @@ -189,7 +191,7 @@ module external_avalanche_entropy( entropy_ready_reg <= entropy_ready_new; cycle_ctr_reg <= cycle_ctr_reg + 1'b1; - seconds_ctr_reg <= cycle_ctr_reg + 1'b1; + seconds_ctr_reg <= cycle_ctr_new; debug_ctr_reg <= debug_ctr_new; if (bit_ctr_we) @@ -318,16 +320,28 @@ module external_avalanche_entropy( negflank_ctr_new = 32'h00000000; negflank_ctr_we = 1'b0; + if (posflank_ctr_rst) + begin + posflank_ctr_new = 32'h00000000; + posflank_ctr_we = 1'b1; + end + + if (negflank_ctr_rst) + begin + negflank_ctr_new = 32'h00000000; + negflank_ctr_we = 1'b1; + end + if ((flank0_reg) && (!flank1_reg)) begin posflank_ctr_new = posflank_ctr_reg + 1'b1; - posflank_ctr_we = 1'b0; + posflank_ctr_we = 1'b1; end if ((!flank0_reg) && (flank1_reg)) begin negflank_ctr_new = negflank_ctr_reg + 1'b1; - negflank_ctr_we = 1'b0; + negflank_ctr_we = 1'b1; end end // flank_counters @@ -351,7 +365,7 @@ module external_avalanche_entropy( if (seconds_ctr_reg == SECONDS_RATE) begin - seconds_ctr_new = 32'h00000000; + seconds_ctr_new = 32'h00000000; posflank_sample_new = posflank_ctr_reg; negflank_sample_new = negflank_ctr_reg; totflank_sample_new = posflank_ctr_reg + negflank_ctr_reg; |