reset synchronizer

1 files changed, 13 insertions, 5 deletions

diff --git a/src/top.v b/src/top.v
index fc1d9fe..b10fbca 100644
--- a/src/top.v
+++ b/src/top.v
@@ -1,23 +1,31 @@
 module top (
 	input clk,
 	input key,
+  input rst,
   output [5:0] led
 );
 
-wire rstn, clk_cpu;
-assign rstn = key;
+wire rstn, rstn_async, clk_cpu;
+assign rstn_async = rst;
 
 wire [31:0] io_in;
 wire [31:0] io_out;
 
+reset_synchronizer reset_synchronizer (
+  .clk(clk),
+  .rstn_async(rstn_async),
+  .rstn(rstn)
+);
+
 clock_divider #(.N(1)) clkdiv (
-    .clk(clk),
-    .rstn(rstn),
-    .clk_div(clk_cpu)
+  .clk(clk),
+  .rstn(rstn),
+  .clk_div(clk_cpu)
 );
 
 assign led[0] = ~clk_cpu;
 assign led[5:1] = ~io_out[4:0];
+assign io_in[0] = key;
 
 
 cpu cpu (