实验101、结果：同时显示012345代码：LIBRARY IEEE;USE IEEE.STD_LOGIC_1164.ALL;ENTITY sweep ISPORT(clk,clr:IN STD_LOGIC; --clk输入时钟；clr状态清零a:OUT STD_LOGIC_VECTOR (6 DOWNTO 0); --输出数码管相同段sweep:OUT STD_LOGIC_VECTOR (5 DOWNTO 0) --输出cat（数码管选通控制信号）端);END sweep;ARCHITECTURE sweep_arch OF sweep ISSIGNAL sweep_arc:STD_LOGIC_VECTOR (5 DOWNTO 0); --声明内部信号（选通控制信号）SIGNAL b:STD_LOGIC_VECTOR (6 DOWNTO 0); --声明内部信号（相同段信号）BEGINPROCESS(sweep_arc)BEGINIF (clk'event and clk='1') THENIF clr='0' THEN --状态清零sweep_arc <="011111" ; b <="0000000";ELSEcase sweep_arc IS --选通控制信号WHEN"011111" => sweep_arc <="111110";WHEN"111110" => sweep_arc <="111101";WHEN"111101" => sweep_arc <="111011";WHEN"111011" => sweep_arc <="110111";WHEN"110111" => sweep_arc <="101111";WHEN"101111" => sweep_arc <="011111";WHEN OTHERS => sweep_arc <="011111";END CASE;CASE sweep_arc IS --相同段信号WHEN"011111" => b <="1011011";WHEN"101111" => b <="0110011";WHEN"110111" => b <="1111001";WHEN"111011" => b <="1101101";WHEN"111101" => b <="0110000";WHEN"111110" => b <="1111110";WHEN OTHERS => b <="0000000";END CASE;END IF;END IF;sweep<=sweep_arc;a<=b;END PROCESS;END;仿真：管脚：2、（1）结果：循环显示：012345—123450—234501—345012—450123—501234—012345代码：LIBRARY IEEE;USE IEEE.STD_LOGIC_1164.ALL;USE IEEE.STD_LOGIC_UNSIGNED.ALL;ENTITY sweep2 ISPORT(clk:IN STD_LOGIC; --clk输入时钟sweep2:OUT STD_LOGIC_VECTOR(5 DOWNTO 0); --输出数码管相同段a:OUT STD_LOGIC_VECTOR(6 DOWNTO 0) --输出cat（数码管选通控制信号）端);END sweep2;ARCHITECTURE arc_sweep2 OF sweep2 ISSIGNAL number:INTEGER RANGE 0 TO 6; --状态声明（6种状态，7种状态值）SIGNAL n:INTEGER RANGE 0 TO 6; --声明数码管（6个管，7个值）SIGNAL flag:INTEGER RANGE 0 TO 50; --同一状态运行次数BEGINPROCESS(clk)BEGINIF (clk'event AND clk='1') THENIF n>5 THENn<=0;ELSE n<=n+1;flag<=flag+1;END IF;IF flag>20 THENflag<=0;number<=number+1;END IF;IF number>5 THENnumber<=0;END IF;CASE number ISWHEN 0=> --状态0，输出012345CASE n ISWHEN 0=>sweep2<="011111"; a<="1111110";WHEN 1=>sweep2<="101111"; a<="0110000";WHEN 2=>sweep2<="110111"; a<="1101101";WHEN 3=>sweep2<="111011"; a<="1111001";WHEN 4=>sweep2<="111101"; a<="0110011";WHEN 5=>sweep2<="111110"; a<="1011011";WHEN OTHERS=>sweep2<="111111";END CASE;WHEN 1=> ----状态1，输出123450 CASE n ISWHEN 0=>sweep2<="011111"; a<="0110000";WHEN 1=>sweep2<="101111"; a<="1101101";WHEN 2=>sweep2<="110111"; a<="1101101";WHEN 3=>sweep2<="111011"; a<="1111001";WHEN 4=>sweep2<="111101"; a<="0110011";WHEN 5=>sweep2<="111110"; a<="1111110";WHEN OTHERS=>sweep2<="111111";END CASE;WHEN 2=> --状态2，输出234501 CASE n ISWHEN 0=>sweep2<="011111"; a<="1101101";WHEN 1=>sweep2<="101111"; a<="1111001";WHEN 2=>sweep2<="110111"; a<="0110011";WHEN 3=>sweep2<="111011"; a<="1011011";WHEN 4=>sweep2<="111101"; a<="1111110";WHEN 5=>sweep2<="111110"; a<="0110000";WHEN OTHERS=>sweep2<="111111";END CASE;WHEN 3=> --状态3，输出345012 CASE n ISWHEN 0=>sweep2<="011111"; a<="1111001";WHEN 1=>sweep2<="101111"; a<="0110011";WHEN 2=>sweep2<="110111"; a<="1011011";WHEN 3=>sweep2<="111011"; a<="1111110";WHEN 4=>sweep2<="111101"; a<="0110000";WHEN 5=>sweep2<="111110"; a<="1101101";WHEN OTHERS=>sweep2<="111111";END CASE;WHEN 4=> --状态4，输出450123 CASE n ISWHEN 0=>sweep2<="011111"; a<="0110011";WHEN 1=>sweep2<="101111"; a<="1011011";WHEN 2=>sweep2<="110111"; a<="1111110";WHEN 3=>sweep2<="111011"; a<="0110000";WHEN 4=>sweep2<="111101"; a<="1101101";WHEN 5=>sweep2<="111110"; a<="1111001";WHEN OTHERS=>sweep2<="111111";END CASE;WHEN 5=> --状态5，输出501234CASE n ISWHEN 0=>sweep2<="011111"; a<="1011011";WHEN 1=>sweep2<="101111"; a<="1111110";WHEN 2=>sweep2<="110111"; a<="0110000";WHEN 3=>sweep2<="111011"; a<="1101101";WHEN 4=>sweep2<="111101"; a<="1111001";WHEN 5=>sweep2<="111110"; a<="0110011";WHEN OTHERS=>sweep2<="111111";END CASE;WHEN OTHERS=>sweep2<="111111";END CASE;END IF;END PROCESS;END arc_sweep2;仿真：仿真时将循环次数改为1方便观察波形，共6种状态管脚：2、（2）结果：循环显示：012345—12345X—2345XX—345XXX—45XXXX —5XXXXX—XXXXXX—XXXXX0—XXXX01—XXX012—XX0123—X01234—012345代码：LIBRARY IEEE;USE IEEE.STD_LOGIC_1164.ALL;USE IEEE.STD_LOGIC_UNSIGNED.ALL;ENTITY sweep3 ISPORT(clk:IN STD_LOGIC; --clk输入时钟sweep3:OUT STD_LOGIC_VECTOR(5 DOWNTO 0); --输出数码管相同段a:OUT STD_LOGIC_VECTOR(6 DOWNTO 0) --输出cat（数码管选通控制信号）端);END sweep3;ARCHITECTURE arc_sweep3 OF sweep3 ISSIGNAL number:INTEGER RANGE 0 TO 12; --状态声明（12种状态，13种状态值）SIGNAL n:INTEGER RANGE 0 TO 6; --声明数码管（6个管，7个值）SIGNAL flag:INTEGER RANGE 0 TO 50; --同一状态运行次数BEGINPROCESS(clk)BEGINIF clk'event AND clk='1' THENIF n>5 THENn<=0;ELSE n<=n+1;flag<=flag+1;END IF;IF flag>20 THENflag<=0;number<=number+1;END IF;IF number>11 THENnumber<=0;END IF;CASE number ISWHEN 0=> --状态0，输出012345CASE n ISWHEN 1=>sweep3<="101111"; a<="0110000";WHEN 2=>sweep3<="110111"; a<="1101101";WHEN 3=>sweep3<="111011"; a<="1111001";WHEN 4=>sweep3<="111101"; a<="0110011";WHEN 5=>sweep3<="111110"; a<="1011011";WHEN OTHERS=>sweep3<="111111";END CASE;WHEN 1=> --状态1，输出12345X CASE n ISWHEN 0=>sweep3<="011111"; a<="0110000";WHEN 1=>sweep3<="101111"; a<="1101101";WHEN 2=>sweep3<="110111"; a<="1101101";WHEN 3=>sweep3<="111011"; a<="1111001";WHEN 4=>sweep3<="111101"; a<="0110011";WHEN 5=>sweep3<="111111"; a<="1111110";WHEN OTHERS=>sweep3<="111111";END CASE;WHEN 2=> --状态2，输出2345XX CASE n ISWHEN 0=>sweep3<="011111"; a<="1101101";WHEN 1=>sweep3<="101111"; a<="1111001";WHEN 2=>sweep3<="110111"; a<="0110011";WHEN 3=>sweep3<="111011"; a<="1011011";WHEN 4=>sweep3<="111111"; a<="1111110";WHEN 5=>sweep3<="111111"; a<="0110000";WHEN OTHERS=>sweep3<="111111";END CASE;WHEN 3=> --状态3，输出345XXX CASE n ISWHEN 0=>sweep3<="011111"; a<="1111001";WHEN 1=>sweep3<="101111"; a<="0110011";WHEN 2=>sweep3<="110111"; a<="1011011";WHEN 3=>sweep3<="111111"; a<="1111110";WHEN 4=>sweep3<="111111"; a<="0110000";WHEN 5=>sweep3<="111111"; a<="1101101";WHEN OTHERS=>sweep3<="111111";END CASE;WHEN 4=> --状态4，输出45XXXX CASE n ISWHEN 0=>sweep3<="011111"; a<="0110011";WHEN 1=>sweep3<="101111"; a<="1011011";WHEN 2=>sweep3<="111111"; a<="1111110";WHEN 3=>sweep3<="111111"; a<="0110000";WHEN 5=>sweep3<="111111"; a<="1111001";WHEN OTHERS=>sweep3<="111111";END CASE;WHEN 5=> --状态5，输出5XXXXX CASE n ISWHEN 0=>sweep3<="011111"; a<="1011011";WHEN 1=>sweep3<="111111"; a<="1111110";WHEN 2=>sweep3<="111111"; a<="0110000";WHEN 3=>sweep3<="111111"; a<="1101101";WHEN 4=>sweep3<="111111"; a<="1111001";WHEN 5=>sweep3<="111111"; a<="0110011";WHEN OTHERS=>sweep3<="111111";END CASE;WHEN 6=> --状态6，输出XXXXXX CASE n ISWHEN 0=>sweep3<="111111"; a<="1111110";WHEN 1=>sweep3<="111111"; a<="0110000";WHEN 2=>sweep3<="111111"; a<="1101101";WHEN 3=>sweep3<="111111"; a<="1111001";WHEN 4=>sweep3<="111111"; a<="0110011";WHEN 5=>sweep3<="111111"; a<="1011011";WHEN OTHERS=>sweep3<="111111";END CASE;WHEN 7=> --状态7，输出XXXXX0 CASE n ISWHEN 0=>sweep3<="111111"; a<="0110000";WHEN 1=>sweep3<="111111"; a<="1101101";WHEN 2=>sweep3<="111111"; a<="1101101";WHEN 3=>sweep3<="111111"; a<="1111001";WHEN 4=>sweep3<="111111"; a<="0110011";WHEN 5=>sweep3<="111110"; a<="1111110";WHEN OTHERS=>sweep3<="111111";END CASE;WHEN 8=> --状态8，输出XXXX01 CASE n ISWHEN 0=>sweep3<="111111"; a<="1101101";WHEN 1=>sweep3<="111111"; a<="1111001";WHEN 2=>sweep3<="111111"; a<="0110011";WHEN 3=>sweep3<="111111"; a<="1011011";WHEN 4=>sweep3<="111101"; a<="1111110";WHEN 5=>sweep3<="111110"; a<="0110000";WHEN OTHERS=>sweep3<="111111";END CASE;WHEN 9=> --状态9，输出XXX012CASE n ISWHEN 0=>sweep3<="111111"; a<="1111001";WHEN 1=>sweep3<="111111"; a<="0110011";WHEN 2=>sweep3<="111111"; a<="1011011";WHEN 3=>sweep3<="111011"; a<="1111110";WHEN 4=>sweep3<="111101"; a<="0110000";WHEN 5=>sweep3<="111110"; a<="1101101";WHEN OTHERS=>sweep3<="111111";END CASE;WHEN 10=> --状态10，输出XX0123CASE n ISWHEN 0=>sweep3<="111111"; a<="0110011";WHEN 1=>sweep3<="111111"; a<="1011011";WHEN 2=>sweep3<="110111"; a<="1111110";WHEN 3=>sweep3<="111011"; a<="0110000";WHEN 4=>sweep3<="111101"; a<="1101101";WHEN 5=>sweep3<="111110"; a<="1111001";WHEN OTHERS=>sweep3<="111111";END CASE;WHEN 11=> --状态11，输出X01234CASE n ISWHEN 0=>sweep3<="111111"; a<="1011011";WHEN 1=>sweep3<="101111"; a<="1111110";WHEN 2=>sweep3<="110111"; a<="0110000";WHEN 3=>sweep3<="111011"; a<="1101101";WHEN 4=>sweep3<="111101"; a<="1111001";WHEN 5=>sweep3<="111110"; a<="0110011";WHEN OTHERS=>sweep3<="111111";END CASE;WHEN OTHERS=>sweep3<="111111";END CASE;--END IF;END IF;END PROCESS;END arc_sweep3;仿真：仿真时将循环次数改为1方便观察波形，共12种状态管脚：。