大家好,我最近在学习FPGA,用quartus11.1调用modelsim-altera10.0c仿真不出波形,quartus里面需要设置的都设置好了,并且跟网上下的资料做了多次对比,觉得设置没问题。用quartus11.1调用modelsim-altera10.0c,仿真不出波形仿真的结果图如图 未命名.jpg所示。VHDL程序如下所示:LIBRARY IEEE;
USE IEEE.STD_LOGIC_1164.ALL;
USE IEEE.STD_LOGIC_UNSIGNED.ALL;
ENTITY fp10 IS
PORT(
CLKJ:IN STD_LOGIC;
CLKO:OUT STD_LOGIC
);
END;
ARCHITECTURE BEHAV OF fp10 IS
SIGNAL CNT:STD_LOGIC_VECTOR(3 DOWNTO 0);
BEGIN
PROCESS(CLKJ)
BEGIN
IF CLKJ'EVENT AND CLKJ='1' THEN
IF CNT < 9 THEN
CNT <= CNT + 1;
ELSE
CNT <= (OTHERS =>'0');
END IF;
END IF;
IF CNT<5 THEN CLKO <= '0';
ELSE CLKO <= '1';
END IF;
END PROCESS;
END BEHAV;
VHDL程序没有问题。因为我单独用modelsim-altera仿过。
我自己根据quartus生成的testbench文件改写的.vht文件如下:
LIBRARY ieee;
USE ieee.std_logic_1164.all;
USE IEEE.STD_LOGIC_UNSIGNED.ALL;
ENTITY fp10_vhd_tst IS
END fp10_vhd_tst;
ARCHITECTURE fp10_arch OF fp10_vhd_tst IS
COMPONENT fp10
PORT (
CLKJ : IN STD_LOGIC;
CLKO : OUT STD_LOGIC
);
END COMPONENT;
SIGNAL CLKJ : STD_LOGIC := '0';
SIGNAL CLKO : STD_LOGIC;
constant clk_period: time := 20 ns;
BEGIN
i1 : fp10
PORT MAP (
CLKJ => CLKJ,
CLKO => CLKO
);
always : PROCESS
BEGIN
CLKJ <= '1';
wait for clk_period/2;
CLKJ <= '0';
wait for clk_period/2;
END PROCESS always;
END fp10_arch;
不知道什么问题,请大家帮我看一下,谢谢!
顺便发一下quartus里面需要设置的图片。