LIBRARY IEEE; USE IEEE.STD_LOGIC_1164.ALL; ENTITY MUXK IS PO
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LIBRARY IEEE; USE IEEE.STD_LOGIC_1164.ALL; ENTITY MUXK IS PORT(a1,a2,a3:IN STD_LOGIC_VECTOR(1 DOWN
这个有什么问题?
LIBRARY IEEE;
USE IEEE.STD_LOGIC_1164.ALL;
ENTITY MUXK IS
PORT(a1,a2,a3:IN STD_LOGIC_VECTOR(1 DOWNTO 0);
S0,S1:IN STD_LOGIC;
outy:OUT STD_LOGIC);
END;
ARCHITECTURE one OF MUXK IS
SIGNAL tmp :STD_LOGIC;
BEGIN
PAR1:PROCESS(S0)
BEGIN
CASE S0 IS
WHEN '0'=> tmp tmpNULL;
END CASE;
END PROCESS;
PART2:PROCESS(S1)
BEGIN
CASE S1 IS
WHEN '0'=>outyoutyNULL;
END CASE;
END PROCESS;
END ;
这个有什么问题?
LIBRARY IEEE;
USE IEEE.STD_LOGIC_1164.ALL;
ENTITY MUXK IS
PORT(a1,a2,a3:IN STD_LOGIC_VECTOR(1 DOWNTO 0);
S0,S1:IN STD_LOGIC;
outy:OUT STD_LOGIC);
END;
ARCHITECTURE one OF MUXK IS
SIGNAL tmp :STD_LOGIC;
BEGIN
PAR1:PROCESS(S0)
BEGIN
CASE S0 IS
WHEN '0'=> tmp tmpNULL;
END CASE;
END PROCESS;
PART2:PROCESS(S1)
BEGIN
CASE S1 IS
WHEN '0'=>outyoutyNULL;
END CASE;
END PROCESS;
END ;
用CAXA吧,都是现成的 右键点布局项,选来自于样板,里面有各种标准的图框…… A0=1189*841 A1=841*594 A2=594*420 A3=420*297 A4=210*
LIBRARY IEEE; USE IEEE.STD_LOGIC_1164.ALL; ENTITY MUXK IS PO
fen100 library ieee; use ieee.std_logic_1164.all; use ieee.s
USE ieee.std_logic_1164.all; USE ieee.std_logic_unsigned.all
eda中vhdl 开头的LIBRARY ieee和USE ieee.std_logic_1164.
LIBRARY IEEE;
MAXPLUS2中,USE IEEE.STD_LOGIC_ARITH.ALL和USE IEEE.STD_LOGIC_UN
USE IEEE.STD_LOGIC_UNSIGNED.ALL; 报错
USE IEEE.STD_LOGIC_ARITH.用来干嘛的
1、vhdl中,USE IEEE.NUMERIC_STD.ALL;这个文件的作用是什么?
EDA中IEEE.STD_LOGIC_ARITH.ALL是什么呢?
英语翻译14.1 IEEE 802.15.4 Modulation FormatThis section is mean
手机支持IEEE 802.11