diff options
Diffstat (limited to 'testsuite/synth/arr02/tb_dpram1.vhdl')
-rw-r--r-- | testsuite/synth/arr02/tb_dpram1.vhdl | 40 |
1 files changed, 40 insertions, 0 deletions
diff --git a/testsuite/synth/arr02/tb_dpram1.vhdl b/testsuite/synth/arr02/tb_dpram1.vhdl new file mode 100644 index 000000000..f7644fbfe --- /dev/null +++ b/testsuite/synth/arr02/tb_dpram1.vhdl @@ -0,0 +1,40 @@ +entity tb_dpram1 is +end tb_dpram1; + +library ieee; +use ieee.std_logic_1164.all; + +architecture behav of tb_dpram1 is + signal raddr : std_logic_vector(3 downto 0); + signal rdat : std_logic_vector(7 downto 0); + signal waddr : std_logic_vector(3 downto 0); + signal wdat : std_logic_vector(7 downto 0); + signal clk : std_logic; +begin + dut: entity work.dpram1 + port map (raddr => raddr, rdat => rdat, waddr => waddr, wdat => wdat, + clk => clk); + + process + procedure pulse is + begin + clk <= '0'; + wait for 1 ns; + clk <= '1'; + wait for 1 ns; + end pulse; + begin + raddr <= "0000"; + waddr <= "0001"; + wdat <= x"01"; + pulse; + + raddr <= "0001"; + waddr <= "0010"; + wdat <= x"02"; + pulse; + assert rdat = x"01" severity failure; + + wait; + end process; +end behav; |