1 files changed, 33 insertions, 0 deletions
diff --git a/basys3/basys3.srcs/apu_note_to_frequency_tb.vhd b/basys3/basys3.srcs/apu_note_to_frequency_tb.vhd
new file mode 100644
index 0000000..6814c1f
--- /dev/null
+++ b/basys3/basys3.srcs/apu_note_to_frequency_tb.vhd
@@ -0,0 +1,33 @@
+library ieee;
+use ieee.std_logic_1164.all;
+use ieee.numeric_std.all;
+
+library unisim;
+use unisim.vcomponents.all;
+
+entity apu_note_to_frequency_tb is
+end entity;
+
+architecture Behavioral of apu_note_to_frequency_tb is
+	component apu_note_to_frequency is port(
+		data: in std_logic_vector(7 downto 0);
+		freq: out std_logic_vector(11 downto 0)); -- frequency
+	end component;
+
+	signal data: std_logic_vector(7 downto 0) := (others => '0');
+	signal freq: std_logic_vector(11 downto 0) := (others => '0');
+
+	signal ok: boolean := false;
+begin
+	uut: apu_note_to_frequency port map(
+		data => data,
+		freq => freq);
+	
+	tb: process
+	begin
+		for i in 0 to 255 loop
+			data <= std_logic_vector(to_unsigned(i, 8));
+			wait for 4 ps;
+		end loop;
+	end process;
+end architecture;