车租车拼车计价器 求救！！！
求vhdl 车租车拼车计价器 或者在原代码基础上增加时钟和拼车功能 小弟急用啊！ 775395807@qq.comlibrary IEEE;
use IEEE.STD_LOGIC_1164.ALL;
use IEEE.STD_LOGIC_ARITH.ALL;
use IEEE.STD_LOGIC_UNSIGNED.ALL;
entity taxi is
port ( clk_180:in std_logic;
start :in std_logic;
stop:in std_logic;
fin:in std_logic;
clks:in std_logic;
km1,km0:out std_logic_vector(3 downto 0);
min1,min0: out std_logic_vector(3 downto 0));
end taxi;
architecture behav of taxi is
signal f_18,f_10,f_1:std_logic;
signal q_18:integer range 0 to 9;
signal q_10:integer range 0 to 17;
signal q_1:integer range 0 to 179;
signal w:integer range 0 to 59;
signal c3,c2,c1,c0:std_logic_vector(3 downto 0);
signal k1,k0:std_logic_vector(3 downto 0);
signal m1:std_logic_vector(2 downto 0);
signal m0:std_logic_vector(3 downto 0);
signal en1,en0,f:std_logic;
begin
feipin:process(clk_180,start)
begin
if clk_180'event and clk_180='1' then
if start='0' then q_18<=0;q_10<=0;f_18<='0';f_10<='0';f_1<='0';f<='0';
else
if q_18=9 then q_18<=0;f_15<='1';
else q_18<=q_18+1;f_18<='0';
end if;
if q_10=17 then q_10<=0;f_10<='1';
else q_10<=q_10+1;f_10<='0';
end if;
if q_1=179 then q_1<=0;f_1<='1';
else q_1<=q_1+1;f_1<='0';
end if;
if en1='1' then f<=f_18;
elsif en0='1' then f<=f_10;
else f<='0';
end if;
end if;
end if;
end process;
process(f_1)
begin
if f_1'event and f_1='1' then
if start='0' then
w<=0;en1<='0';en0<='0';m1<="000";m0<="0000";k1<="0000";k0<="0000";
elsif stop='1' then
if w=59 then w<=0;
if m0="1001" then m0<="0000";
if m1<="101" then m1<="000";
else m1<=m1+1;
end if;
else m0<=m0+1;
end if;
if m1&m0>"0000010"then en1<='1';
else en1<='0';
end if;
else w<=w+1;en1<='0';
end if;
elsif fin='1' then
if k0="1001" then k0<="0000";
if k1="1001" then k1<="0000";
else k1<=k1+1;
end if;
else k0<=k0+1;
end if;
if k1&k0>"00000010" then en0<='1';
else en0<='0';
end if;
else en1<='0';en0<='0';
end if;
cha3<=c3;cha2<=c2;cha1<=c1;cha0<=c0;
km1<=k1;km0<=k0;min1<='0'&m1;min0<=m0;
end if;
end process;
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