diff options
Diffstat (limited to 'testsuite/synth/cnt01/tb_cnt04.vhdl')
-rw-r--r-- | testsuite/synth/cnt01/tb_cnt04.vhdl | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/testsuite/synth/cnt01/tb_cnt04.vhdl b/testsuite/synth/cnt01/tb_cnt04.vhdl new file mode 100644 index 000000000..184f941d1 --- /dev/null +++ b/testsuite/synth/cnt01/tb_cnt04.vhdl @@ -0,0 +1,36 @@ +entity tb_cnt04 is +end tb_cnt04; + +library ieee; +use ieee.std_logic_1164.all; + +architecture behav of tb_cnt04 is + signal clk : std_logic; + signal rst : std_logic; + signal counter : std_logic_vector (7 downto 0); +begin + dut: entity work.cnt04 + port map (clk => clk, rst => rst, counter => counter); + process + procedure pulse is + begin + clk <= '0'; + wait for 1 ns; + clk <= '1'; + wait for 1 ns; + end pulse; + begin + rst <= '1'; + pulse; + assert counter = x"01" severity failure; + + rst <= '0'; + pulse; + assert counter = x"02" severity failure; + + pulse; + assert counter = x"03" severity failure; + + wait; + end process; +end behav; |