求高手修改一下EDA的课程设计 数字秒表;控制模块出了问题LIBRARY IEEE;USE IEEE.STD_LOGIC_1164.ALL;USE IEEE.STD_LOGIC_UNSIGNED.ALL;ENTITY CTRL ISPORT(CLR,CLK,SP:IN STD_LOGIC;EN :OUT STD_LOGIC);END;ARCHITECTURE BEHAVE OF CTRL ISCO
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![求高手修改一下EDA的课程设计 数字秒表;控制模块出了问题LIBRARY IEEE;USE IEEE.STD_LOGIC_1164.ALL;USE IEEE.STD_LOGIC_UNSIGNED.ALL;ENTITY CTRL ISPORT(CLR,CLK,SP:IN STD_LOGIC;EN :OUT STD_LOGIC);END;ARCHITECTURE BEHAVE OF CTRL ISCO](/uploads/image/z/11704422-30-2.jpg?t=%E6%B1%82%E9%AB%98%E6%89%8B%E4%BF%AE%E6%94%B9%E4%B8%80%E4%B8%8BEDA%E7%9A%84%E8%AF%BE%E7%A8%8B%E8%AE%BE%E8%AE%A1+%E6%95%B0%E5%AD%97%E7%A7%92%E8%A1%A8%EF%BC%9B%E6%8E%A7%E5%88%B6%E6%A8%A1%E5%9D%97%E5%87%BA%E4%BA%86%E9%97%AE%E9%A2%98LIBRARY+IEEE%3BUSE+IEEE.STD_LOGIC_1164.ALL%3BUSE+IEEE.STD_LOGIC_UNSIGNED.ALL%3BENTITY+CTRL+ISPORT%28CLR%2CCLK%2CSP%3AIN+STD_LOGIC%3BEN+%3AOUT+STD_LOGIC%29%3BEND%3BARCHITECTURE+BEHAVE+OF+CTRL+ISCO)
求高手修改一下EDA的课程设计 数字秒表;控制模块出了问题LIBRARY IEEE;USE IEEE.STD_LOGIC_1164.ALL;USE IEEE.STD_LOGIC_UNSIGNED.ALL;ENTITY CTRL ISPORT(CLR,CLK,SP:IN STD_LOGIC;EN :OUT STD_LOGIC);END;ARCHITECTURE BEHAVE OF CTRL ISCO
求高手修改一下EDA的课程设计 数字秒表;控制模块出了问题
LIBRARY IEEE;
USE IEEE.STD_LOGIC_1164.ALL;
USE IEEE.STD_LOGIC_UNSIGNED.ALL;
ENTITY CTRL IS
PORT(CLR,CLK,SP:IN STD_LOGIC;
EN :OUT STD_LOGIC);
END;
ARCHITECTURE BEHAVE OF CTRL IS
CONSTANT S0 :STD_LOGIC_VECTOR(1 DOWNTO 0) := "00";
CONSTANT S1 :STD_LOGIC_VECTOR(1 DOWNTO 0) := "01";
CONSTANT S2 :STD_LOGIC_VECTOR(1 DOWNTO 0) := "11";
CONSTANT S3 :STD_LOGIC_VECTOR(1 DOWNTO 0) := "10";
TYPE STATES IS (S0,S1,S2,S3);
SIGNAL CURRENT_STATE,NEXT_STATE:STATES;
BEGIN
错误提示在倒数第3行,Error (10465):VHDL error at CTRL.vhd(13):name "S0" cannot be used because it is already used for a previously declared item
Error (10465):VHDL error at CTRL.vhd(13):name "S1" cannot be used because it is already used for a previously declared item
下周5要交了,我已经弄了一周了,还是没改成功,
求高手修改一下EDA的课程设计 数字秒表;控制模块出了问题LIBRARY IEEE;USE IEEE.STD_LOGIC_1164.ALL;USE IEEE.STD_LOGIC_UNSIGNED.ALL;ENTITY CTRL ISPORT(CLR,CLK,SP:IN STD_LOGIC;EN :OUT STD_LOGIC);END;ARCHITECTURE BEHAVE OF CTRL ISCO
s0已经被用过了 给它起个别的名字 ss0
你的程序有很大的问题,你告诉我具体题目要求。我帮你找错。