diff options
Diffstat (limited to 'rtl')
| -rw-r--r-- | rtl/debounce.sv | 25 | ||||
| -rw-r--r-- | rtl/top/conspiracion.sv | 15 |
2 files changed, 38 insertions, 2 deletions
diff --git a/rtl/debounce.sv b/rtl/debounce.sv new file mode 100644 index 0000000..dff9e9e --- /dev/null +++ b/rtl/debounce.sv @@ -0,0 +1,25 @@ +module debounce +( + input logic clk, + dirty, + output logic clean +); + + logic last; + logic[15:0] clean_for; + + always @(posedge clk) begin + last <= dirty; + clean_for <= last == dirty ? clean_for + 1 : 0; + + if(&clean_for) + clean <= last; + end + + initial begin + last = 0; + clean = 0; + clean_for = 0; + end + +endmodule diff --git a/rtl/top/conspiracion.sv b/rtl/top/conspiracion.sv index 4409d9b..8b29699 100644 --- a/rtl/top/conspiracion.sv +++ b/rtl/top/conspiracion.sv @@ -1,7 +1,7 @@ module conspiracion ( input wire clk_clk, - input wire reset_reset_n, + input wire rst_n, output wire [12:0] memory_mem_a, output wire [2:0] memory_mem_ba, output wire memory_mem_ck, @@ -41,7 +41,18 @@ module conspiracion logic[29:0] addr; logic[31:0] data_rd, data_wr; - logic cpu_clk, ready, write, start, irq; + logic reset_reset_n, cpu_clk, ready, write, start, irq; + +`ifdef VERILATOR + assign reset_reset_n = rst_n; +`else + debounce reset_debounce + ( + .clk(clk_clk), + .dirty(rst_n), + .clean(reset_reset_n) + ); +`endif arm810 core ( |