Question

我正在尝试使用来自我的计数器的输入运行我的3到7解码器，所有单独的代码运行良好但结构代码放弃了一些错误

这是我的计数器的程序

library IEEE;

use IEEE.std_logic_1164.all;

use IEEE.std_logic_unsigned.all;

entity counter is  
   port(clk , CLR : in std_logic;
   Q : out std_logic_vector(2 downto 0) );    
end counter;

architecture archi of counter is

    signal tmp: std_logic_vector(2 downto 0);  

    begin      
    process (clk, CLR)   
         begin       

         if (CLR='1') then                  
             tmp <= "000";                       
         elsif (clk'event and clk='1') then  
              tmp <= tmp + 1;                     
          end if;        

     end process;   

     Q <= tmp;

 end archi;

这是解码器的程序：

library IEEE;

use IEEE.std_logic_1164.all;

entity led_inp is

    port (I : in std_logic_vector(2 downto 0) ;

    L : out std_logic_vector(6 downto 0) ) ;

end led_inp ;

architecture led_inp1 of led_inp is 

Begin    
    L(0) <= (not I(0)) and (not I(1)) and (not I(2));   
    L(1) <= (not I(0)) and (not I(1)) and I(2);
    L(2) <= (not I(0)) and I(1) and (not I(2));
    L(3) <= (not I(0)) and I(1) and I(2);
    L(4) <= I(0) and (not I(1)) and (not I(2));
    L(5) <= I(0) and (not I(1)) and I(2);
    L(6) <= I(0) and I(1) and (not I(2));
end led_inp1;

这是整个设计的结构格式：

library IEEE;

use IEEE.std_logic_1164.all;

-- the entity of the whole design block, here i have given the names of the ports as the ones which i have used in my individual components 

entity led_design is  
    port(clock,CLEAR :in std_logic;        
    L :out std_logic_vector(6 downto 0));   
end led_design; 

architecture led_design1 of led_design is 
-- declaring my counter as a component 
   component counter   
   port(clk, CLR : in std_logic;     
   Q : out std_logic_vector(2 downto 0) );
 end component ;

-- declaring my decoder as a component 

component led_inp 
    port (I : in std_logic_vector(2 downto 0) ;
    L : out std_logic_vector(6 downto 0)) ;
end component  ;

signal I:std_logic_vector(2 downto 0);
begin 
    -- The PORT MAPPING BEGINS 

    L1: counter port map(clk=>clock,CLR=>CLEAR,I(2)=>I(2),I(1)=>I(1),I(0)=>I(0)); 

    L2: led_inp port map(I(2)=>I(2),I(1)=>I(1),I(0)=>I(0),L(0)=>L(0),L(1)=>L(1),L(2)=>L(2),L(3)=>L(3),L(4)=>L(4),L(5)=>L(5),L(6)=>L(6));

    L1: counter port 

    map(clk=>clock,CLR=>CLEAR,I(2)=>h(2),I(1)=>h(1),I(0)=>h(0)); 
end led_design1;

这是出现的错误：ERROR
ncvhdl_p：* E，FMLBAD（led_count，85 | 44）：元素关联形式不正确87 [4.3.3.2] 93 [4.3.2.2]。错误：1，警告：0＆＃34;

Answer 1

请注意，符号led_count未显示在您的VHDL设计说明中，是文件名吗？

你在led_design中有两个标签L1，它也缺少信号h的声明来匹配信号I.（这也告诉你它没有在其他任何地方使用）。

两个counter关联列表（端口映射）都不匹配组件声明。修好你的代码分析后的东西。注意h并未在其他地方使用。

阅读Markdown help以了解如何格式化代码，这很糟糕。

缺乏正确的格式以及无法理解错误会阻止那些可以回答的人提供答案。

试试这个：

library IEEE;
use IEEE.std_logic_1164.all;
--use IEEE.std_logic_unsigned.all;
use ieee.numeric_std.all;

entity counter is  
   port(clk , CLR : in std_logic;    
         Q : out std_logic_vector(2 downto 0) ); 
end counter;

architecture archi of counter is

    signal tmp: std_logic_vector(2 downto 0);  

begin  

    process (clk, CLR)   
    begin       

        if (CLR='1') then                
            tmp <= "000";        
        elsif (clk'event and clk='1') then      
            tmp <= std_logic_vector(unsigned(tmp) + 1);             
        end if;        

    end process;   

    Q <= tmp;

end archi;



library IEEE;
use IEEE.std_logic_1164.all;

entity led_inp is
    port (I : in std_logic_vector(2 downto 0) ;
          L : out std_logic_vector(6 downto 0) ) ;
end led_inp ;

architecture led_inp1 of led_inp is 

Begin 

    L(0) <= (not I(0)) and (not I(1)) and (not I(2));
    L(1) <= (not I(0)) and (not I(1)) and I(2);
    L(2) <= (not I(0)) and I(1) and (not I(2));
    L(3) <= (not I(0)) and I(1) and I(2);
    L(4) <= I(0) and (not I(1)) and (not I(2));
    L(5) <= I(0) and (not I(1)) and I(2);
    L(6) <= I(0) and I(1) and (not I(2));

end led_inp1;



 library IEEE;
 use IEEE.std_logic_1164.all;

 entity led_design is 
     port(clock,CLEAR :in std_logic;    
          L :out std_logic_vector(6 downto 0));
 end led_design; 

 architecture led_design1 of led_design is

     component counter   
         port(clk, CLR : in std_logic;     
             Q : out std_logic_vector(2 downto 0) );
     end component ;

     component led_inp 
         port (I : in std_logic_vector(2 downto 0) ;
               L : out std_logic_vector(6 downto 0)) ;
     end component  ;

     signal I:std_logic_vector(2 downto 0);
     signal h:std_logic_vector(2 downto 0);
begin 

L1: counter port map (
      clk=>clock,CLR=>CLEAR, Q => I); -- I(2)=>I(2),I(1)=>I(1),I(0)=>I(0)); 

L2: led_inp port map ( I(2)=>I(2),I(1)=>I(1),I(0)=>I(0),L(0)=>L(0),L(1)=>L(1),L(2)=>L(2),L(3)=>L(3),L(4)=>L(4),L(5)=>L(5),L(6)=>L(6));

L3: counter port map( clk=>clock,CLR=>CLEAR, Q => h);-- I(2)=>h(2),I(1)=>h(1),I(0)=>h(0));
-- ERROR 
--**ncvhdl_p: *E,FMLBAD (led_count,85|44): poorly formed formal part of element association 87[4.3.3.2] 93[4.3.2.2].
--  errors: 1, warnings: 0"**


end led_design1;

numeric_std的use子句和类型转换是为了让我能够使用符合-1993标准的工具（它没有std_logic_unsigned）。您的环境可能不需要进行这些更改。

请注意，现在标记为L3的第二个计数器（连接到h）的输出不会出现在任何地方。

请注意，如果您只修复第85行，错误也应显示在第83行。

使用计数器运行3到7解码器

1 个答案: