六位数码管整点报时

数码管为时钟模块，当秒数为60s时，蜂鸣器响1s。
fpga源代码(程序仅供参考)：

library IEEE;
use IEEE.STD_LOGIC_1164.ALL;
use IEEE.std_logic_unsigned.all;
use ieee.std_logic_arith.all;
use IEEE.numeric_std.all;entity segmentTest isPort ( rst:out std_logic;sel:inout std_logic_vector(5 downto 0);buzzer:out std_logic;selSegmet2:out std_logic_vector(5 downto 0);clk:in std_logic;seg_dataSegment2: out STD_LOGIC_vector(7 downto 0);seg_data: out STD_LOGIC_vector(6 downto 0));
end segmentTest;architecture Behavioral of segmentTest is
signal count:std_logic_vector(16 downto 0);
signal countDemo:std_logic_vector(3 downto 0);
signal count1Demo:std_logic_vector(3 downto 0);  --秒的个位
signal count2Demo:std_logic_vector(3 downto 0);  --秒的十位
signal count3Demo:std_logic_vector(3 downto 0);  --分的个位
signal count4Demo:std_logic_vector(3 downto 0);  --分的十位
signal count5Demo:std_logic_vector(3 downto 0);  --时的个位
signal count6Demo:std_logic_vector(3 downto 0);  --时的十位signal count1:std_logic_vector(25 downto 0);
signal count2:std_logic_vector(28 downto 0);
signal count3:std_logic_vector(31 downto 0);
signal count4:std_logic_vector(34 downto 0);
signal count5:std_logic_vector(37 downto 0);
signal count6:std_logic_vector(40 downto 0);
signal countSecond1,countSecond2:std_logic_vector(6 downto 0);--秒的数码管对应二进制数
signal countMinute1,countMinute2:std_logic_vector(6 downto 0);--分的数码管对应二进制数
signal countHour1,countHour2:std_logic_vector(6 downto 0);    --时的数码管对应二进制数
signal selDemo:std_logic_vector(5 downto 0);  --充当sel的中间变量signal countsegment1,countsegment2,countsegment3,countsegment4,countsegment5,countsegment6:std_logic_vector(3 downto 0);begintimeCount:process(clk)begin----------------------------------------------------------------------------------------------
----------------------------------------------------------------------------------------------if (clk' event and clk = '1') then   --晶振频率为50MHZ，一个周期就增加一次，以此来计数,一共有50 000 000次。count<=count+'1';  --用于数码管快速切换count1<=count1+'1';  --segment1，秒的个位count2<=count2+'1';  --segment2，秒的十位count3<=count3+'1';    --segment3，分的个位count4<=count4+'1';    --segment4，分的十位count5<=count5+'1';    --segment5，时的个位count6<=count6+'1';    --segment6，时的十位
----------------------------------------------------------------------------------------------
--------------------------------------显示秒的个位---------------------------------------------
----------------------------------------------------------------------------------------------if(count1 = "10111110101111000010000000") then  --秒的个位，1秒计数一次，变化一次count1Demo <= count1Demo + "0001";if(count1Demo = "1001") thencount1Demo <=  "0000";count2Demo <= count2Demo + "0001";if(count2Demo = "0101") then    --如果秒的十位数为6，跳回0。count2Demo <=  "0000";count3Demo <= count3Demo + "0001";if(count3Demo = "1001") then    --如果分的个位数为10，跳回0。count3Demo <=  "0000";count4Demo <= count4Demo + "0001";if(count4Demo = "0101") then    --如果分的十位数为6，跳回0。count4Demo <=  "0000";   --没做完，还需要把时的两位放进来，但是估计到不了那里，只做了到分钟的。end if;end if;end if;end if;end if;if(count1Demo = "0000")  then  countSecond1 <= "1000000";                buzzer <='1';   --不响elsif (count1Demo = "0001") then  countSecond1 <= "1111001"; buzzer <='1';   --不响elsif (count1Demo = "0010") then  countSecond1 <= "0100100"; buzzer <='1';   --不响elsif (count1Demo = "0011") then  countSecond1 <= "0110000"; buzzer <='1';   --不响elsif (count1Demo = "0100") then  countSecond1 <= "0011001" ;    buzzer <='1';   --不响elsif (count1Demo = "0101") then  countSecond1 <= "0010010"; buzzer <='1';   --不响elsif (count1Demo = "0110") then  countSecond1 <= "0000010"; buzzer <='1';   --不响elsif (count1Demo = "0111") then  countSecond1 <= "1111000"; buzzer <='1';   --不响elsif (count1Demo = "1000") then  countSecond1 <= "0000000" ;    buzzer <='1';   --不响elsif (count1Demo = "1001") then  countSecond1 <= "0010000";   buzzer <='0';   --响end if;
----------------------------------------------------------------------------------------------
--------------------------------------显示秒的十位---------------------------------------------
------------------------------------------------------------------------------------------------if(count2 = "11101110011010110010100000000") then  --秒的个位，10秒计数一次，变化一次--count2Demo <= "0011";--count2Demo <= count2Demo + "0001";--if(count2Demo = "0101") then    --如果秒的十位数为6，跳回0。--count2Demo <=  "0000";--end if;--end if;if(count2Demo = "0000")  then  countSecond2 <= "1000000";          elsif (count2Demo = "0001") then  countSecond2 <= "1111001";    elsif (count2Demo = "0010") then  countSecond2 <= "0100100";elsif (count2Demo = "0011") then  countSecond2 <= "0110000";  elsif (count2Demo = "0100") then  countSecond2 <= "0011001" ;  elsif (count2Demo = "0101") then  countSecond2 <= "0010010";   end if;
----------------------------------------------------------------------------------------------
--------------------------------------显示分的个位---------------------------------------------
------------------------------------------------------------------------------------------------if(count2Demo = "0110") then  --秒的个位，60秒计数一次，变化一次--count3Demo <= count3Demo + "0001";--if(count3Demo = "1001") then    --如果分的个位数为10，跳回0。--count3Demo <=  "0000";--count4Demo <= count4Demo + "0001";--if(count4Demo = "0101") then    --如果分的十位数为6，跳回0。--count4Demo <=  "0000";--end if;--end if;--end if;if(count3Demo = "0000")  then  countMinute1 <= "1000000";              --为了让实验效果更明显，1分钟buzzer一次elsif (count3Demo = "0001") then  countMinute1 <= "1111001";    elsif (count3Demo = "0010") then  countMinute1 <= "0100100";elsif (count3Demo = "0011") then  countMinute1 <= "0110000";elsif (count3Demo = "0100") then  countMinute1 <= "0011001";elsif (count3Demo = "0101") then  countMinute1 <= "0010010";elsif (count3Demo = "0110") then  countMinute1 <= "0000010";elsif (count3Demo = "0111") then  countMinute1 <= "1111000";elsif (count3Demo = "1000") then  countMinute1 <= "0000000";elsif (count3Demo = "1001") then  countMinute1 <= "0010000";end if;
----------------------------------------------------------------------------------------------
--------------------------------------显示分的十位---------------------------------------------
------------------------------------------------------------------------------------------------if(count4 = "11011111100001000111010110000000000") then  --分的十位，10分钟计数一次--count4Demo <="0010";--count4Demo <= count4Demo + "0001";--if(count4Demo = "0101") then    --如果分的十位数为6，跳回0。--count4Demo <=  "0000";--end if;--end if;if(count4Demo = "0000")  then  countMinute2 <= "1000000";   elsif (count4Demo = "0001") then  countMinute2 <= "1111001";elsif (count4Demo = "0010") then  countMinute2 <= "0100100";elsif (count4Demo = "0011") then  countMinute2 <= "0110000";elsif (count4Demo = "0100") then  countMinute2 <= "0011001";elsif (count4Demo = "0101") then  countMinute2 <= "0010010";end if;
----------------------------------------------------------------------------------------------
--------------------------------------显示时的个位---------------------------------------------
----------------------------------------------------------------------------------------------if(count4Demo = "0110") then  --时的个位，60分钟计数一次count5Demo <= count5Demo + "0001";if(count5Demo = "1001") then    --如果时的十位数为6，跳回0。count5Demo <=  "0000";count6Demo <= count6Demo + "0001";if((count5Demo = "0100")and(count6Demo = "0010")) then    --如果时的十位数为6，跳回0。count6Demo <=  "0000";count5Demo <=  "0000";   --24点归零。end if;end if;end if;if(count5Demo = "0000")  then  countHour1 <= "0010000";elsif (count5Demo = "0001") then  countHour1 <= "1111001";elsif (count5Demo = "0010") then  countHour1 <= "0100100";elsif (count5Demo = "0011") then  countHour1 <= "0110000";elsif (count5Demo = "0100") then  countHour1 <= "0011001";elsif (count5Demo = "0110") then  countHour1 <= "0000010";elsif (count5Demo = "0111") then  countHour1 <= "1111000";elsif (count5Demo = "1000") then  countHour1 <= "0000000";elsif (count5Demo = "1001") then  countHour1 <= "0010000";end if;
----------------------------------------------------------------------------------------------
--------------------------------------显示时的十位---------------------------------------------
------------------------------------------------------------------------------------------------if(count6 = "10100111101000110101100000100000000000") then  --时的十位，10小时计数一次--count6Demo <= count6Demo + "0001";--if(count6Demo = "0010") then    --如果分的十位数为6，跳回0。--count6Demo <=  "0000";--end if;--end if;if(count6Demo = "0000")  then  countHour2 <= "1000000";elsif (count6Demo = "0001") then  countHour2 <= "1111001";elsif (count6Demo = "0010") then  countHour2 <= "0100100";end if;
----------------------------------------------------------------------------------------------if(count = "11000011010100000") then  --2 000 000计数一次，用于6个数码管快速切换count<=count - "11000011010100000"; case countDemo iswhen "0000"  => sel<=  "111110";            when "0001"  => sel<=  "111101";when "0010"  => sel<=  "111011";when "0011"  => sel<=  "110111";when "0100"  => sel<=  "101111";when "0101"  => sel<=  "011111";when others =>sel<= "111111";end case;case sel iswhen "111110"  => seg_data<=  countSecond2;--显示秒的十位。  when "111101"  => seg_data<=  countMinute1;--显示分的个位。when "111011"  => seg_data<=  countMinute2;--显示分的十位。when "110111"  => seg_data<=  countHour1;--显示时的个位。when "101111"  => seg_data<=  countHour2;   --显示时的十位。when "011111"  => seg_data<= countHour2 ;    when others =>seg_data<= countSecond1;   --显示秒的个位。end case;countDemo<=countDemo + '1';  --每秒计数一次，用于显示数字。if(countDemo = "0110") thencountDemo<="0000";end if;end if;
----------------------------------------------------------------------------------------------
----------------------------------------------------------------------------------------------
end if;
end process;
end Behavioral;

效果图：

FPGA型号：ALTERA ALINX FPGA黑金开发板 CYCLONE IV EP4CE6
使用的软件为quartus

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