debouncing example

[hwmod.git] / debouncing / src / sync_beh.vhd

diff --git a/debouncing/src/sync_beh.vhd b/debouncing/src/sync_beh.vhd
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+++ b/debouncing/src/sync_beh.vhd
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+library ieee;\r
+use ieee.std_logic_1164.all;\r
+\r
+architecture beh of sync is\r
+  signal sync : std_logic_vector(1 to SYNC_STAGES);\r
+begin\r
+  process(sys_clk, sys_res_n)\r
+  begin\r
+    if sys_res_n = '0' then\r
+      sync <= (others => RESET_VALUE);\r
+    elsif rising_edge(sys_clk) then\r
+      sync(1) <= data_in;\r
+      for i in 2 to SYNC_STAGES loop\r
+        sync(i) <= sync(i - 1);\r
+      end loop;\r
+    end if;\r
+  end process;\r
+  data_out <= sync(SYNC_STAGES);\r
+end architecture beh;\r