如何在仿真开始时修复“内部编译器错误”

时间:2019-04-02 14:09:16

标签: vhdl xilinx

我正在使用分频器,并且可以选择频率,但是我无法正常工作。语法检查每次都会通过,但是当我开始仿真时,会出现以下错误:“ FATAL_ERROR:Simulator:CompilerAssert.h:40:1.20-文件../src/VhdlTreeTransform.cpp中的内部编译器错误在第296行提供有关此内容的技术支持问题,请访问http://www.xilinx.com/support。”

我已经搜索了这个问题,找不到任何解决方案。我是新手,这可能是一个平庸的问题,如果您能帮助我,我将很高兴。

主要代码在这里:

library IEEE;
use IEEE.STD_LOGIC_1164.ALL;
use ieee.std_logic_unsigned.all;
use IEEE.NUMERIC_STD.ALL;
use IEEE.STD_LOGIC_ARITH.ALL;


entity Freq4Sel is
     Port ( cp : in  STD_LOGIC;
              sel : in  STD_LOGIC_VECTOR (1 downto 0);
              outcp : buffer  STD_LOGIC:= '0');
end Freq4Sel;

architecture Behavioral of Freq4Sel is
begin
process(cp)
variable selects : integer range 0 to 50000000;
variable temp: integer range 0 to 50000000 := 0;
begin
with sel select
    selects :=  50000000 when "11",
                    5000000 when  "10",
                    2000000 when  "01",
                    1000000 when  others;
    if (cp'event and cp = '1') then
    temp := temp+1;
    if(temp>=selects) then 
        outcp <= not outcp;
    end if;
end if;
end process;


end Behavioral;

用于仿真测试的文件在这里:

LIBRARY ieee;
USE ieee.std_logic_1164.ALL;
USE ieee.numeric_std.ALL;

ENTITY Freq4Sel_w IS
END Freq4Sel_w;

ARCHITECTURE behavior OF Freq4Sel_w IS 


     COMPONENT Freq4Sel
     PORT(
            cp : IN  std_logic;
            sel : IN  std_logic_vector(1 downto 0);
            outcp : BUFFER  std_logic
          );
     END COMPONENT;


    signal cp : std_logic := '0';
    signal sel : std_logic_vector(1 downto 0) := "00";

    signal outcp : std_logic;

    constant cp_period : time := 10 ns;

BEGIN

    uut: Freq4Sel PORT MAP (
             cp => cp,
             sel => sel,
             outcp => outcp
          );

    cp_process :process
    begin
        cp <= '0';
        wait for cp_period/2;
        cp <= '1';
        wait for cp_period/2;
    end process;


    stim_proc: process
    begin       
        wait for 100 ns;    
        sel <= "10";
        wait for cp_period*10;


        wait;
    end process;

END;

0 个答案:

没有答案