当我尝试使用vivado运行模拟时出现以下错误：
检测到致命的运行时错误。模拟无法继续。
有关错误类型的任何想法？在我的测试平台下面：
library ieee;
use ieee.std_logic_1164.all;
use ieee.numeric_std.all;
-------------------------------------------------------------------------------
entity tb_processing_unit is
end tb_processing_unit;
architecture behavioral of tb_processing_unit is
component processing_unit is
port (bus_clk : in std_logic;
rst : in std_logic;
enable : in std_logic;
GPIO : in std_logic_vector (7 downto 0);
din_0 : in std_logic_vector (7 downto 0);
din_1 : in std_logic_vector (7 downto 0);
din_2 : in std_logic_vector (7 downto 0);
o_data : out std_logic_vector (7 downto 0);
o_wr_en : out std_logic;
p_data : out std_logic_vector (31 downto 0);
p_wr_en : out std_logic;
p_full : in std_logic
);
end component;
-- the size of the frames to be processed
constant FRAME_HEIGHT : integer := 480;
constant FRAME_WIDTH : integer := 854;
signal clk : std_logic := '0';
signal reset : std_logic := '0';
signal enable_sig : std_logic;
signal din_0_sig : std_logic_vector (7 downto 0);
signal din_1_sig : std_logic_vector (7 downto 0);
signal din_2_sig : std_logic_vector (7 downto 0);
signal o_data_sig : std_logic_vector (7 downto 0);
signal o_wr_en_sig : std_logic;
signal GPIO : std_logic_vector (7 downto 0);
signal prof_data : std_logic_vector (31 downto 0);
signal prof_wren : std_logic;
signal prof_full : std_logic;
-- signals as expected
signal Gx_exp, Gy_exp : unsigned (9 downto 0) := (others => '0');
signal o_dat_exp : std_logic_vector (7 downto 0) := (others => '0');
begin
-- Instantiate the Unit Under Test (UUT)
uut : processing_unit
port map (enable => enable_sig,
din_0 => din_0_sig,
din_1 => din_1_sig,
din_2 => din_2_sig,
o_data => o_data_sig,
o_wr_en => o_wr_en_sig,
rst => reset,
bus_clk => clk,
GPIO => GPIO,
p_data => prof_data,
p_wr_en => prof_wren,
p_full => prof_full
);
-- generate a clock with 100 ns period
clkg : process
begin
wait for 50 ns;
clk <= not clk;
end process;
-- generate some testpatterns
tb : process
begin
prof_full <= '0';
din_0_sig <= X"00";
din_1_sig <= X"00";
din_2_sig <= X"00";
GPIO <= "00000111";
enable_sig <= '0';
wait for 200 ns;
-- we reset the fsm
reset <= '1';
wait for 100 ns;
reset <= '0';
-- no we enable the unit
enable_sig <= '1';
-- have to wait until the processing unit is
-- really outputting calculated values from the sobel
-- filter (it waits
enable_sig <= '1';
-- FOR i in 1 TO (2*FRAME_WIDTH+2) LOOP
wait for (2*FRAME_WIDTH+2) * 100 ns;
din_0_sig <= X"33";
din_1_sig <= X"40";
din_2_sig <= X"43";
wait for 100 ns;
din_0_sig <= X"F5";
din_1_sig <= X"9B";
din_2_sig <= X"59";
wait for 100 ns;
din_0_sig <= X"C0";
din_1_sig <= X"C6";
din_2_sig <= X"B2";
wait for 100 ns;
din_0_sig <= X"02";
din_1_sig <= X"0D";
din_2_sig <= X"A0";
wait for 100 ns;
din_0_sig <= X"D4";
din_1_sig <= X"DC";
din_2_sig <= X"22";
wait for 100 ns;
din_0_sig <= X"41";
din_1_sig <= X"FC";
din_2_sig <= X"FF";
wait for 100 ns;
din_0_sig <= X"DB";
din_1_sig <= X"39";
din_2_sig <= X"4E";
wait for 100 ns;
din_0_sig <= X"85";
din_1_sig <= X"43";
din_2_sig <= X"7D";
wait for 100 ns;
din_0_sig <= X"81";
din_1_sig <= X"57";
din_2_sig <= X"29";
wait for 100 ns;
din_0_sig <= X"A4";
din_1_sig <= X"C5";
din_2_sig <= X"73";
wait for 100 ns;
enable_sig <= '1';
wait for 300 ns;
wait; -- will wait forever
end process;
gxy_exp : process
begin
wait for ((2*FRAME_WIDTH+6)*100 ns + 50 ns);
Gx_exp <= B"00" & X"1e";
Gy_exp <= B"00" & X"02";
wait for 100 ns;
Gx_exp <= B"00" & X"50";
Gy_exp <= B"00" & X"0f";
wait for 100 ns;
Gx_exp <= B"00" & X"41";
Gy_exp <= B"00" & X"26";
wait for 100 ns;
Gx_exp <= B"00" & X"39";
Gy_exp <= B"00" & X"03";
wait for 100 ns;
Gx_exp <= B"00" & X"0a";
Gy_exp <= B"00" & X"0f";
wait for 100 ns;
Gx_exp <= B"00" & X"4f";
Gy_exp <= B"00" & X"01";
wait for 100 ns;
Gx_exp <= B"00" & X"22";
Gy_exp <= B"00" & X"07";
wait for 100 ns;
Gx_exp <= B"00" & X"36";
Gy_exp <= B"00" & X"0c";
wait for 100 ns;
Gx_exp <= B"00" & X"08";
Gy_exp <= B"00" & X"1e";
wait for 100 ns;
Gx_exp <= B"00" & X"23";
Gy_exp <= B"00" & X"1d";
wait for 100 ns;
Gx_exp <= B"00" & X"29";
Gy_exp <= B"00" & X"1d";
wait for 100 ns;
Gx_exp <= B"00" & X"00";
Gy_exp <= B"00" & X"18";
wait; -- wait forever
end process;
od_exp : process
begin
wait for 650 ns;
o_dat_exp <= X"80";
wait for (2*FRAME_WIDTH+2) * 100 ns;
o_dat_exp <= X"ff";
wait for 200 ns;
o_dat_exp <= X"00";
wait for 100 ns;
o_dat_exp <= X"ff";
wait for 600 ns;
o_dat_exp <= X"00";
wait; -- wait forever
end process;
end behavioral;
我尝试运行模拟时出现错误
答案 0 :(得分：1)
这是一个溢出问题。 我有以下信号
signal Gx, Gy : unsigned (9 downto 0);
signal G : unsigned (9 downto 0 );
执行此乘法时出错
G <= Gx(7 downto 0)*Gx(7 downto 0)+Gy(7 downto 0)*Gy(7 downto 0);
我考虑过改变G的大小
signal G : unsigned (15 downto 0 );
现在它正在运作