移位寄存器設(shè)計(jì)

1、實(shí)驗(yàn)名稱 移位寄存器設(shè)計(jì)一：實(shí)驗(yàn)?zāi)康亩簩?shí)驗(yàn)所用儀表及主要器材三：實(shí)驗(yàn)原理簡(jiǎn)述（源程序、真值表、原理圖）四：實(shí)驗(yàn)測(cè)量記錄（數(shù)據(jù)、仿真波形圖及分析、源程序分析、硬件測(cè)試實(shí)時(shí)分析）五：實(shí)驗(yàn)心得（實(shí)驗(yàn)中問(wèn)題的解決方法等）一：實(shí)驗(yàn)?zāi)康?1)掌握移位寄存器電路設(shè)計(jì)的方法。(2)通過(guò)開(kāi)發(fā)CPLD來(lái)實(shí)現(xiàn)時(shí)序邏輯電路的功能。二：實(shí)驗(yàn)所用儀表及主要器材 Max+plus2軟件。三：實(shí)驗(yàn)原理簡(jiǎn)述（源程序、真值表、原理圖）（1）環(huán)形計(jì)數(shù)器源程序：library IEEE;use IEEE.std_logic_1164.all;entity huanxing is port ( clk : in std_logic;

2、 load : in std_logic; d : in std_logic_vector(3 downto 0); q : out std_logic_vector(3 downto 0);end entity;architecture shft_reg_arch of huanxing issignal TEMP : std_logic_vector(3 downto 0);beginprocess(clk) begin if clk'event and clk='1' then if load = '1' then TEMP <= d; el

3、sif TEMP="1000" then TEMP<= TEMP(0) & TEMP(3 downto 1); elsif TEMP="0100" then TEMP<= TEMP(0) & TEMP(3 downto 1); elsif TEMP="0010" then TEMP<= TEMP(0) & TEMP(3 downto 1); elsif TEMP="0001" then TEMP<= TEMP(0) & TEMP(3 downto 1); el

4、se TEMP<="1000" end if; end if; end process; q <= TEMP;end architecture;（2）節(jié)日彩燈 源程序：library IEEE;use IEEE.std_logic_1164.all;entity caideng is port ( clk : in std_logic; shift : in std_logic; q : out std_logic_vector(3 downto 0);end entity;architecture shft_reg_arch of caideng issign

5、al temp : std_logic_vector(3 downto 0);begin q<=temp; process(clk) begin if (clk'event and clk='1') then if shift='1' then case temp is when "0000"=>temp<="1000" when "1000"=>temp<="1100" when "1100"=>temp<=&q

6、uot;1110" when "1110"=>temp<="1111" when "1111"=>temp<="0111" when "0111"=>temp<="0011" when "0011"=>temp<="0001" when "0001"=>temp<="0000" when others=>temp<=

7、"0000" end case; else case temp is when "0000"=>temp<="0001" when "0001"=>temp<="0011" when "0011"=>temp<="0111" when "0111"=>temp<="1111" when "1111"=>temp<="1110" when "1110"=>temp<="1100" when "1100"=>temp<="1000" when "1000"=>temp<="0000" when others=>temp<="0000" end case; end if; end if; end process ;end architecture;狀態(tài)轉(zhuǎn)換圖：當(dāng)shift=1時(shí)當(dāng)shift=0時(shí)四：實(shí)驗(yàn)測(cè)量記錄（數(shù)據(jù)、