1 files changed, 50 insertions, 0 deletions
diff --git a/testsuite/gna/ticket14/scrambler_tb.vhd b/testsuite/gna/ticket14/scrambler_tb.vhd
new file mode 100644
index 000000000..97b7ef34b
--- /dev/null
+++ b/testsuite/gna/ticket14/scrambler_tb.vhd
@@ -0,0 +1,50 @@
+library ieee;
+use ieee.std_logic_1164.all;
+ 
+entity scrambler_tb is
+end entity scrambler_tb;
+ 
+architecture behaviour of scrambler_tb is
+
+    constant clk_period : time := 10 ns;
+    
+    signal clk, reset : std_logic;
+    signal en, seed : std_logic;
+    signal d_in, d_out : std_logic;
+
+begin 
+
+    uut: entity work.scrambler
+	port map (
+	    clk => clk,
+	    reset => reset,
+	    en => en,
+	    seed => seed,
+	    d_in => d_out,
+	    d_out => d_out);
+		  
+   -- Clock process definitions
+    clk_process: process
+    begin
+      for i in 1 to 10 loop
+	clk <= '0';
+	wait for clk_period/2;
+	clk <= '1';
+	wait for clk_period/2;
+      end loop;
+      wait;
+    end process;
+
+    -- Stimulus process
+    stim_proc: process begin		
+
+	-- Reset period
+	reset <= '1';
+	wait for clk_period * 2;	
+	reset <= '0';
+	wait for clk_period * 3.5;
+
+	wait;
+   end process;
+
+end architecture behaviour;