[讨论]请问在Q2中怎么新建testbench testbench, 讨论

flyfpga

请问在Q2中怎么新建testbench？我用的是Q2，请问我要用testbench验证该怎么办？

caopengly

quartus2 中不能使用testbench来作为测试工具。

你可以使用modelsim来测试程序，modelsim支持testbench。

flyfpga

testbench也是.vhd格式吗？或者说怎么新建testbench文件啊？

caopengly

“

testbench也是.vhd格式吗？或者说怎么新建testbench文件啊？

”

是的，就是，这个和一般的vhdl有一点区别，如

VHDL 示例
library IEEE;
use IEEE.std_logic_1164.all;
entity testbench is
end entity testbench;
architecture test_reg of testbench is
component shift_reg is
port ( clock : in std_logic;
reset : in std_logic;
load : in std_logic;
sel : in std_logic_vector(1 downto 0);
data : in std_logic_vector(4 downto 0);
shiftreg : out std_logic_vector(4 downto 0));
end component;
signal clock, reset, load: std_logic;
signal shiftreg, data: std_logic_vector(4 downto 0);
signal sel: std_logic_vector(1 downto 0);
constant ClockPeriod : TIME := 50 ns;
begin
UUT : shift_reg port map (clock => clock, reset => reset,
load => load, data => data,
shiftreg => shiftreg);
process begin
clock <= not clock after (ClockPeriod / 2);
end process;
process begin
reset <= ’1’;
data <= "00000";
load <= ’0’;
set <= "00";
wait for 200 ns;
reset <= ’0’;
load <= ’1’;
wait for 200 ns;
data <= "00001";
wait for 100 ns;
sel <= "01";
load <= ’0’;
wait for 200 ns;
sel <= "10";
wait for 1000 ns;
end process;
end architecture test_reg;