diff options
Diffstat (limited to 'testsuite/synth/dff01/tb_dff10.vhdl')
-rw-r--r-- | testsuite/synth/dff01/tb_dff10.vhdl | 41 |
1 files changed, 41 insertions, 0 deletions
diff --git a/testsuite/synth/dff01/tb_dff10.vhdl b/testsuite/synth/dff01/tb_dff10.vhdl new file mode 100644 index 000000000..57234dc10 --- /dev/null +++ b/testsuite/synth/dff01/tb_dff10.vhdl @@ -0,0 +1,41 @@ +entity tb_dff10 is +end tb_dff10; + +library ieee; +use ieee.std_logic_1164.all; + +architecture behav of tb_dff10 is + signal clk : std_logic; + signal rst : std_logic; + signal din : std_logic_vector (7 downto 0); + signal dout : std_logic_vector (7 downto 0); + signal en : std_logic; +begin + dut: entity work.dff10 + port map ( + q => dout, + d => din, + clk => clk, + rst => rst, + en => en); + + process + procedure pulse is + begin + clk <= '0'; + wait for 1 ns; + clk <= '1'; + wait for 1 ns; + end pulse; + begin + rst <= '1'; + en <= '1'; + wait for 1 ns; + assert dout = x"55" severity failure; + rst <= '0'; + din <= x"7e"; + pulse; + assert dout = x"7e" severity failure; + wait; + end process; +end behav; |