错误在第431,451,452和455行中。
错误： - 第431行。选择.to。不是静态表达式。 第451行.Choice +不是静态表达式。 第452行。选择+不是静态表达式。 第455行。选择time_period_counter不是静态表达式。
我附加的代码很长，但逻辑非常简单。它是关于switch case的语法。
请帮助!!
----------------------------------------------------------------------------------
-- Company: IIST
-- Engineer: Leen Roque Robin
--
-- Create Date: 23:14:17 06/22/2017
-- Design Name:
-- Module Name: data - Behavioral
-- Project Name:
-- Target Devices:
-- Tool versions:
-- Description: To create the corresponding output data as per the command received from the command_interface module
--
-- Dependencies:
--
-- Revision:
-- Revision 0.01 - File Created
-- Additional Comments:
--
----------------------------------------------------------------------------------
library IEEE;
use IEEE.STD_LOGIC_1164.ALL;
use IEEE.STD_LOGIC_ARITH.ALL;
use IEEE.STD_LOGIC_UNSIGNED.ALL;
entity data_output is
Port ( --Input signals
Por : in std_logic;
sys_clk : in std_logic;
start_bit : in std_logic;
mode_bit1 : in std_logic_vector(2 downto 0);
mode_bit2 : in std_logic_vector(2 downto 0);
mode_bit3 : in std_logic_vector(2 downto 0);
input_data : in std_logic_vector(7 downto 0);
card_id : in std_logic_vector(7 downto 0);
--Output signals
clk : out std_logic;
pkt_start : out std_logic;
dataws : out std_logic;
data : out std_logic_vector(15 downto 0)
-- random_flag :out std_logic
);
end data_output;
architecture Behavioral of data_output is
signal count : integer:=0;
signal time_period_counter : integer:=0;
signal window_counter : integer:=0;
constant data_AA55 : std_logic_vector(15 downto 0):=x"AA55";
constant data_5555 : std_logic_vector(15 downto 0):=x"5555";
constant word_1 : std_logic_vector(15 downto 0):=x"F8DD";
constant word_2 : std_logic_vector(15 downto 0):=x"4259";
signal word_3 : std_logic_vector(15 downto 0);
constant word_4 : std_logic_vector(15 downto 0):=x"5231";
signal word_5 : std_logic_vector(15 downto 0);
signal word_6 : std_logic_vector(15 downto 0);
signal word_7 : std_logic_vector(15 downto 0);
signal word_8 : std_logic_vector(15 downto 0):=x"F8DD";
signal word_9 : std_logic_vector(15 downto 0):=x"F8DD";
signal word_10 : std_logic_vector(15 downto 0):=x"F8DD";
constant word_11 : std_logic_vector(15 downto 0):=x"00AA";
constant word_12 : std_logic_vector(15 downto 0):=x"00AB";
constant word_13 : std_logic_vector(15 downto 0):=x"00AC";
constant word_14 : std_logic_vector(15 downto 0):=x"00AD";
constant word_15 : std_logic_vector(15 downto 0):=x"00AE";
constant word_16 : std_logic_vector(15 downto 0):=x"00AF";
constant word_17 : std_logic_vector(15 downto 0):=x"00BA";
constant word_18 : std_logic_vector(15 downto 0):=x"00BB";
constant word_19 : std_logic_vector(15 downto 0):=x"00BC";
constant word_20 : std_logic_vector(15 downto 0):=x"00BD";
constant word_21 : std_logic_vector(15 downto 0):=x"00BE";
constant word_22 : std_logic_vector(15 downto 0):=x"00BF";
constant word_23 : std_logic_vector(15 downto 0):=x"00CA";
constant word_24 : std_logic_vector(15 downto 0):=x"00CB";
constant word_25 : std_logic_vector(15 downto 0):=x"00CC";
constant word_26 : std_logic_vector(15 downto 0):=x"00CD";
constant word_27 : std_logic_vector(15 downto 0):=x"00CE";
constant word_28 : std_logic_vector(15 downto 0):=x"00CF";
constant word_29 : std_logic_vector(15 downto 0):=x"00DA";
constant word_30 : std_logic_vector(15 downto 0):=x"00DB";
constant word_31 : std_logic_vector(15 downto 0):=x"00DC";
constant word_32 : std_logic_vector(15 downto 0):=x"00DD";
constant word_33 : std_logic_vector(15 downto 0):=x"00DE";
constant word_34 : std_logic_vector(15 downto 0):=x"00DF";
constant word_35 : std_logic_vector(15 downto 0):=x"00EA";
constant word_36 : std_logic_vector(15 downto 0):=x"00EB";
constant word_37 : std_logic_vector(15 downto 0):=x"00EC";
constant word_38 : std_logic_vector(15 downto 0):=x"00ED";
constant word_39 : std_logic_vector(15 downto 0):=x"00EE";
constant word_40 : std_logic_vector(15 downto 0):=x"00EF";
constant word_41 : std_logic_vector(15 downto 0):=x"00FA";
constant word_42 : std_logic_vector(15 downto 0):=x"00FB";
constant word_43 : std_logic_vector(15 downto 0):=x"00FC";
constant word_44 : std_logic_vector(15 downto 0):=x"00FD";
constant word_45 : std_logic_vector(15 downto 0):=x"00FE";
constant word_46 : std_logic_vector(15 downto 0):=x"00FF";
constant word_47 : std_logic_vector(15 downto 0):=x"01AA";
constant word_48 : std_logic_vector(15 downto 0):=x"01AB";
constant word_49 : std_logic_vector(15 downto 0):=x"01AC";
constant word_50 : std_logic_vector(15 downto 0):=x"01AD";
constant word_51 : std_logic_vector(15 downto 0):=x"01AE";
constant word_52 : std_logic_vector(15 downto 0):=x"01AF";
constant word_53 : std_logic_vector(15 downto 0):=x"01BA";
constant word_54 : std_logic_vector(15 downto 0):=x"01BB";
constant word_55 : std_logic_vector(15 downto 0):=x"01BC";
constant word_56 : std_logic_vector(15 downto 0):=x"01BD";
constant word_57 : std_logic_vector(15 downto 0):=x"01BE";
constant word_58 : std_logic_vector(15 downto 0):=x"01BF";
constant word_59 : std_logic_vector(15 downto 0):=x"01CA";
constant word_60 : std_logic_vector(15 downto 0):=x"01CB";
constant word_61 : std_logic_vector(15 downto 0):=x"01CC";
constant word_62 : std_logic_vector(15 downto 0):=x"01CD";
constant word_63 : std_logic_vector(15 downto 0):=x"01CE";
constant word_64 : std_logic_vector(15 downto 0):=x"01CF";
constant word_65 : std_logic_vector(15 downto 0):=x"01DA";
constant word_66 : std_logic_vector(15 downto 0):=x"01DB";
constant word_67 : std_logic_vector(15 downto 0):=x"01DC";
constant word_68 : std_logic_vector(15 downto 0):=x"01DD";
constant word_69 : std_logic_vector(15 downto 0):=x"01DE";
constant word_70 : std_logic_vector(15 downto 0):=x"01DF";
constant word_71 : std_logic_vector(15 downto 0):=x"01EA";
constant word_trailer : std_logic_vector(15 downto 0):=x"01FF";
signal word_6_7 : std_logic_vector(31 downto 0);
signal word_8_9 : std_logic_vector(31 downto 0);
--prf values
signal prf1_value : integer:=10417;
signal prf2_value : integer:=11161;
signal prf3_value : integer:=5581;
signal prf4_value : integer:=11161;
--window values
--window for prf1
signal prf1_width1 : integer:=2816;
signal prf1_width2 : integer:=3129;
signal prf1_width3 : integer:=3441;
signal prf1_width4 : integer:=3754;
--window for prf2
signal prf2_width1 : integer:=1563;
signal prf2_width2 : integer:=2813;
signal prf2_width3 : integer:=4063;
signal prf2_width4 : integer:=5313;
--window for prf3
signal prf3_width1 : integer:=1094;
signal prf3_width2 : integer:=1719;
signal prf3_width3 : integer:=2344;
signal prf3_width4 : integer:=2969;
--window for prf4
signal prf4_width1 : integer:=1094;
signal prf4_width2 : integer:=1719;
signal prf4_width3 : integer:=2344;
signal prf4_width4 : integer:=2969;
signal sample_data : std_logic_vector(15 downto 0);
signal test_sample : std_logic_vector(7 downto 0);
signal random_flag : std_logic;
signal data_in : std_logic_vector(15 downto 0);
signal counter : std_logic_vector(15 downto 0);
--Random Sequence generation
Component random_data_generator
Port(--Input signals
por : in std_logic;
sys_clk : in std_logic;
random_flag : in std_logic;
--Output signals
random_data : out std_logic_vector(15 downto 0)
);
end component;
begin
A: random_data_generator port map (por,sys_clk,random_flag,data_in);
process(por,sys_clk)
begin
if(por='0') then
time_period_counter <= 0;
window_counter <= 0;
word_3 <= (others=>'0');
word_5 <= (others=>'0');
word_6_7 <= (others=>'0');
word_8_9 <= (others=>'0');
-- word_6 <= (others=>'0');
-- word_7 <= (others=>'0');
-- word_8 <= (others=>'0');
-- word_9 <= (others=>'0');
word_10 <= (others=>'0');
elsif(falling_edge(sys_clk)) then
--Finding word 3
case card_id is
when x"01" => word_3 <= x"F0F0";
when x"02" => word_3 <= x"F00F";
when x"03" => word_3 <= x"0FF0";
when x"04" => word_3 <= x"0F0F";
when others => word_3 <= x"0000";
end case;
--Finding word 10
if(mode_bit3 = "011") then
word_10(10 downto 8) <= "111";
end if;
if(mode_bit1 = "000") then
word_10(3 downto 0) <= "0000";
elsif(mode_bit1 = "001") then
word_10(3 downto 0) <= "0001";
elsif(mode_bit1 = "010") then
word_10(3 downto 0) <= "0010";
elsif(mode_bit1 = "011") then
word_10(3 downto 0) <= "0011";
end if;
--Checking PRF
case mode_bit1 is
when "000" => time_period_counter <= prf1_value;
--Checking receive window
case mode_bit2 is
when "000" => window_counter <= prf1_width1;
when "001" => window_counter <= prf1_width2;
when "010" => window_counter <= prf1_width3;
when "011" => window_counter <= prf1_width4;
when others => window_counter <= prf1_width1;
end case;
when "001" => time_period_counter <= prf2_value;
case mode_bit2 is
when "000" => window_counter <= prf2_width1;
when "001" => window_counter <= prf2_width2;
when "010" => window_counter <= prf2_width3;
when "011" => window_counter <= prf2_width4;
when others => window_counter <= prf2_width1;
end case;
when "010" => time_period_counter <= prf3_value;
case mode_bit2 is
when "000" => window_counter <= prf3_width1;
when "001" => window_counter <= prf3_width2;
when "010" => window_counter <= prf3_width3;
when "011" => window_counter <= prf3_width4;
when others => window_counter <= prf3_width1;
end case;
when "011" => time_period_counter <= prf4_value;
case mode_bit2 is
when "000" => window_counter <= prf4_width1;
when "001" => window_counter <= prf4_width2;
when "010" => window_counter <= prf4_width3;
when "011" => window_counter <= prf4_width4;
when others => window_counter <= prf4_width1;
end case;
when others => time_period_counter <= prf1_value;
window_counter <= 0;
end case;
end if;
if(por='0') then
test_sample <= (others=>'0');
sample_data <= (others=>'0');
pkt_start <= '0';
dataws <= '0';
count <= 0;
counter <= x"0000";
elsif(falling_edge(sys_clk)) then
if(start_bit='1') then
count <= count+1;
case count is
when 1 to 2 => pkt_start <= '1';
dataws <= '0';
when 3 => pkt_start <= '0';
dataws <= '0';
when 4 => dataws <= '1';
word_5 <= word_5+'1';
word_6_7 <= word_6_7+'1';
word_8_9 <= word_8_9+'1';
sample_data <= word_1;
when 5 => dataws <= '1';
sample_data <= word_2;
when 6 => dataws <= '1';
sample_data <= word_3;
when 7 => dataws <= '1';
sample_data <= word_4;
when 8 => dataws <= '1';
sample_data <= word_5;
when 9 => dataws <= '1';
sample_data <= word_6_7(31 downto 16);
when 10 => dataws <= '1';
sample_data <= word_6_7(15 downto 0);
when 11 => dataws <= '1';
sample_data <= word_8_9(31 downto 16);
when 12 => dataws <= '1';
sample_data <= word_8_9(15 downto 0);
when 13 => dataws <= '1';
sample_data <= word_10;
when 14 => dataws <= '1';
sample_data <= word_11;
when 15 => dataws <= '1';
sample_data <= word_12;
when 16 => dataws <= '1';
sample_data <= word_13;
when 17 => dataws <= '1';
sample_data <= word_14;
when 18 => dataws <= '1';
sample_data <= word_15;
when 19 => dataws <= '1';
sample_data <= word_16;
when 20 => dataws <= '1';
sample_data <= word_17;
when 21 => dataws <= '1';
sample_data <= word_18;
when 22 => dataws <= '1';
sample_data <= word_19;
when 23 => dataws <= '1';
sample_data <= word_20;
when 24 => dataws <= '1';
sample_data <= word_21;
when 25 => dataws <= '1';
sample_data <= word_22;
when 26 => dataws <= '1';
sample_data <= word_23;
when 27 => dataws <= '1';
sample_data <= word_24;
when 28 => dataws <= '1';
sample_data <= word_25;
when 29 => dataws <= '1';
sample_data <= word_26;
when 30 => dataws <= '1';
sample_data <= word_27;
when 31 => dataws <= '1';
sample_data <= word_28;
when 32 => dataws <= '1';
sample_data <= word_29;
when 33 => dataws <= '1';
sample_data <= word_30;
when 34 => dataws <= '1';
sample_data <= word_31;
when 35 => dataws <= '1';
sample_data <= word_32;
when 36 => dataws <= '1';
sample_data <= word_33;
when 37 => dataws <= '1';
sample_data <= word_34;
when 38 => dataws <= '1';
sample_data <= word_35;
when 39 => dataws <= '1';
sample_data <= word_36;
when 40 => dataws <= '1';
sample_data <= word_37;
when 41 => dataws <= '1';
sample_data <= word_38;
when 42 => dataws <= '1';
sample_data <= word_39;
when 43 => dataws <= '1';
sample_data <= word_40;
when 44 => dataws <= '1';
sample_data <= word_41;
when 45 => dataws <= '1';
sample_data <= word_42;
when 46 => dataws <= '1';
sample_data <= word_43;
when 47 => dataws <= '1';
sample_data <= word_44;
when 48 => dataws <= '1';
sample_data <= word_45;
when 49 => dataws <= '1';
sample_data <= word_46;
when 50 => dataws <= '1';
sample_data <= word_47;
when 51 => dataws <= '1';
sample_data <= word_48;
when 52 => dataws <= '1';
sample_data <= word_49;
when 53 => dataws <= '1';
sample_data <= word_50;
when 54 => dataws <= '1';
sample_data <= word_51;
when 55 => dataws <= '1';
sample_data <= word_52;
when 56 => dataws <= '1';
sample_data <= word_53;
when 57 => dataws <= '1';
sample_data <= word_54;
when 58 => dataws <= '1';
sample_data <= word_55;
when 59 => dataws <= '1';
sample_data <= word_56;
when 60 => dataws <= '1';
sample_data <= word_57;
when 61 => dataws <= '1';
sample_data <= word_58;
when 62 => dataws <= '1';
sample_data <= word_59;
when 63 => dataws <= '1';
sample_data <= word_60;
when 64 => dataws <= '1';
sample_data <= word_61;
when 65 => dataws <= '1';
sample_data <= word_62;
when 66 => dataws <= '1';
sample_data <= word_63;
when 67 => dataws <= '1';
sample_data <= word_64;
when 68 => dataws <= '1';
sample_data <= word_65;
when 69 => dataws <= '1';
sample_data <= word_66;
when 70 => dataws <= '1';
sample_data <= word_67;
when 71 => dataws <= '1';
sample_data <= word_68;
when 72 => dataws <= '1';
sample_data <= word_69;
when 73 => dataws <= '1';
sample_data <= word_70;
when 74 => dataws <= '1';
sample_data <= word_71;
when 75 to window_counter+3 => dataws <= '1';
case mode_bit3 is
--Upcounter
when "000" => counter <= counter +'1';
sample_data <= counter;
--Downcounter
when "001" => counter <= counter -'1';
sample_data <= counter;
--Constant AA55
when "010" => sample_data <= data_AA55;
--Stretch Mode
when "011" => test_sample <= test_sample +'1';
sample_data <= test_sample & test_sample;
--Fixed Mode
when "100" => sample_data <= input_data & input_data;
--Random Sequence
when "111" => random_flag <= '1';
sample_data <= data_in;
when others => sample_data <= (others=>'0');
end case;
when window_counter+4 => sample_data <= word_trailer;
when window_counter+5 => dataws <= '0';
random_flag <= '0';
sample_data <= (others=>'0');
when time_period_counter => count <= 0;
when others => dataws <= '0';
sample_data <= (others=>'0');
end case;
end if;
end if;
-- --Upcounter
-- if(start_bit='1' and mode_bit3="000") then
-- count <= count+1;
-- if(count=1) then
-- pkt_start <= '1';
-- dataws <= '0';
-- elsif(count=3) then
-- pkt_start <= '0';
-- elsif(count>=3 and count<(window_counter+4)) then
-- dataws <= '1';
-- sample_data <= sample_data +'1';
-- elsif(count=(window_counter+4)) then
-- dataws <= '0';
-- sample_data <= (others=>'0');
-- elsif(count=time_period_counter) then
-- count <= 0;
-- end if;
-- end if;
--
-- --Downcounter
-- if(start_bit='1' and mode_bit3="001") then
-- count <= count+1;
-- if(count=1) then
-- pkt_start <= '1';
-- dataws <= '0';
-- elsif(count=3) then
-- pkt_start <= '0';
-- elsif(count>=3 and count<(window_counter+4)) then
-- dataws <= '1';
-- sample_data <= sample_data -'1';
-- elsif(count=(window_counter+4)) then
-- dataws <= '0';
-- sample_data <= (others=>'0');
-- elsif(count=time_period_counter) then
-- count <= 0;
-- end if;
-- end if;
--
-- --AA55
-- if(start_bit='1' and mode_bit3="010") then
-- count <= count+1;
-- if(count=1) then
-- pkt_start <= '1';
-- dataws <= '0';
-- elsif(count=3) then
-- pkt_start <= '0';
-- elsif(count>=3 and count<(window_counter+4)) then
-- dataws <= '1';
-- sample_data <= data_AA55;
-- elsif(count=(window_counter+4)) then
-- dataws <= '0';
-- sample_data <= (others=>'0');
-- elsif(count=time_period_counter) then
-- count <= 0;
-- end if;
-- end if;
--
-- --Stretch mode
-- if(start_bit='1' and mode_bit3="011") then
-- count<=count+1;
-- if(count=1) then
-- pkt_start <= '1';
-- dataws <= '0';
-- elsif(count=3) then
-- pkt_start <= '0';
-- elsif(count>=3 and count<(window_counter+4)) then
-- dataws <= '1';
-- test_sample <= test_sample +'1';
-- sample_data <= test_sample & test_sample;
-- elsif(count=(window_counter+4)) then
-- dataws <= '0';
-- sample_data <= (others=>'0');
-- test_sample <= (others=>'0');
-- elsif(count=time_period_counter) then
-- count <= 0;
-- end if;
-- end if;
--
-- --Fixed mode
-- if(start_bit='1' and mode_bit3="100") then
-- count<=count+1;
-- if(count=1) then
-- pkt_start <= '1';
-- dataws <= '0';
-- elsif(count=3) then
-- pkt_start <= '0';
-- elsif(count>=3 and count<(window_counter+4)) then
-- dataws <= '1';
-- sample_data <= input_data & input_data;
-- elsif(count=(window_counter+4)) then
-- dataws <= '0';
-- sample_data <= (others=>'0');
-- elsif(count=time_period_counter) then
-- count <= 0;
-- end if;
-- end if;
--
-- --Random sequence generator
-- if(start_bit='1' and mode_bit3="111") then
-- count<=count+1;
-- if(count=1) then
-- pkt_start <= '1';
-- dataws <= '0';
-- elsif(count=3) then
-- pkt_start <= '0';
-- elsif(count>=3 and count<(window_counter+4)) then
-- dataws <= '1';
-- random_flag <= '1';
-- sample_data <= data_in;
-- elsif(count=(window_counter+4)) then
-- dataws <= '0';
-- random_flag <= '0';
-- sample_data <= (others=>'0');
-- elsif(count=time_period_counter) then
-- count <= 0;
-- end if;
-- end if;
-- end if;
end process;
data <= sample_data;
end Behavioral;
答案 0 :(得分：0)
在VHDL中，您不能像使用的那样在case语句中使用变量作为选择。它必须是静态表达式，例如"001"或34，而不是像time_period_counter那样的信号。