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Automatic_coffe_machine.vhd
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Automatic_coffe_machine.vhd
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library ieee;
library STD;
use IEEE.std_logic_1164.all;
use IEEE.std_logic_arith.all;
use IEEE.std_logic_unsigned.all;
use IEEE.numeric_std.ALL;
entity coffe2 is
port(
clk, reset : in std_logic;
caffe_b : in std_logic;
cappuccino_b : in std_logic;
ricarica_b : in std_logic;
c1 : in std_logic;
c2 : in std_logic;
c3 : in std_logic;
c4 : in std_logic;
LED_out : out bit_vector (0 to 6);
LED_reg_1 : out bit_vector (0 to 6);
LED_reg_0 : out bit_vector (0 to 6);
LED_next_1 : out bit_vector (0 to 6);
LED_next_0 : out bit_vector (0 to 6);
LED_reset : out bit_vector (0 to 6)
);
end coffe2;
architecture arch of coffe2 is
type stateMealy_type is (zero, uno,due,tre,quattro,cinque,sei, sette, otto, nove, dieci, undici, dodici, tredici, quattordici, quindici); -- 16 states are required for Mealy
signal stateMealy_reg, stateMealy_next : stateMealy_type;
signal count: integer:=0;
signal max: integer:=50000;
signal interval_m: integer:=45000;
signal interval_p: integer:=5000;
signal caffe: std_logic :='0';
signal cappuccino: std_logic :='0';
signal ricarica: std_logic :='0';
signal tmp : std_logic := '0';
signal clock_out: std_logic:='0';
begin
process(clk)
begin
if(clk'event and clk='1') then
count <=count+1;
if (count = max) then
tmp <= NOT tmp;
count <= 1;
end if;
end if;
clock_out <= tmp;
end process;
process(clock_out, reset,stateMealy_reg,count)
begin
if (reset = '1') then -- go to state zero if reset
LED_reset<= "1001111";
if ((c1='0')and(c2='0')and(c3='0')and(c4='0')) then
stateMealy_reg <= zero;--stato iniziale deciso dall'importo presente sulla chiavetta
elsif ((c1='0')and(c2='0')and(c3='0')and(c4='1')) then
stateMealy_reg <= uno;--stato iniziale deciso dall'importo presente sulla chiavetta
elsif ((c1='0')and(c2='0')and(c3='1')and(c4='0')) then
stateMealy_reg <= due;--stato iniziale deciso dall'importo presente sulla chiavetta
elsif ((c1='0')and(c2='0')and(c3='1')and(c4='1')) then
stateMealy_reg <= tre;--stato iniziale deciso dall'importo presente sulla chiavetta
elsif ((c1='0')and(c2='1')and(c3='0')and(c4='0')) then
stateMealy_reg <= quattro;--stato iniziale deciso dall'importo presente sulla chiavetta
elsif ((c1='0')and(c2='1')and(c3='0')and(c4='1')) then
stateMealy_reg <= cinque;--stato iniziale deciso dall'importo presente sulla chiavetta
elsif ((c1='0')and(c2='1')and(c3='1')and(c4='0')) then
stateMealy_reg <= sei;--stato iniziale deciso dall'importo presente sulla chiavetta
elsif ((c1='0')and(c2='1')and(c3='1')and(c4='1')) then
stateMealy_reg <= sette;--stato iniziale deciso dall'importo presente sulla chiavetta
elsif ((c1='1')and(c2='0')and(c3='0')and(c4='0')) then
stateMealy_reg <= otto;--stato iniziale deciso dall'importo presente sulla chiavetta
elsif ((c1='1')and(c2='0')and(c3='0')and(c4='1')) then
stateMealy_reg <= nove;--stato iniziale deciso dall'importo presente sulla chiavetta
elsif ((c1='1')and(c2='0')and(c3='1')and(c4='0')) then
stateMealy_reg <= dieci;--stato iniziale deciso dall'importo presente sulla chiavetta
elsif ((c1='1')and(c2='0')and(c3='1')and(c4='1')) then
stateMealy_reg <= undici;--stato iniziale deciso dall'importo presente sulla chiavetta
elsif ((c1='1')and(c2='1')and(c3='0')and(c4='0')) then
stateMealy_reg <= dodici;--stato iniziale deciso dall'importo presente sulla chiavetta
elsif ((c1='1')and(c2='1')and(c3='0')and(c4='1')) then
stateMealy_reg <= tredici;--stato iniziale deciso dall'importo presente sulla chiavetta
elsif ((c1='1')and(c2='1')and(c3='1')and(c4='0')) then
stateMealy_reg <= quattordici;--stato iniziale deciso dall'importo presente sulla chiavetta
elsif ((c1='1')and(c2='1')and(c3='1')and(c4='1')) then
stateMealy_reg <= quindici;--stato iniziale deciso dall'importo presente sulla chiavetta
end if;
elsif (count = interval_m and clock_out = '0') then -- otherwise update the states
stateMealy_reg <= stateMealy_next;
LED_reset<= "0000001";
end if;
end process;
process (caffe_b,count,clock_out)
begin
if (caffe_b'event and caffe_b = '1') then
caffe <= '1';
end if;
if (count=interval_p and clock_out = '1') then caffe <= '0';
end if;
end process;
process (cappuccino_b,count,clock_out)
begin
if (cappuccino_b'event and cappuccino_b = '1') then
cappuccino <= '1';
end if;
if (count=interval_p and clock_out = '1') then cappuccino <= '0';
end if;
end process;
process (ricarica_b,count,clock_out)
begin
if (ricarica_b'event and ricarica_b = '1') then
ricarica <= '1';
end if;
if (count=interval_p and clock_out = '1') then ricarica <= '0';
end if;
end process;
-- Mealy Design
process(stateMealy_reg, caffe,cappuccino,ricarica,reset,clock_out, count)
begin
-- store current state as next
if (reset = '1') then -- otherwise update the states
if(count = interval_m and clock_out = '0') then
stateMealy_next <= stateMealy_reg; -- required: when no case statement is satisfied
end if;
elsif (clock_out'event and clock_out = '1')then
case stateMealy_reg is
when zero =>
LED_reg_1<= "0000001";
LED_reg_0<= "0000001";
--
if (caffe = '1') then
stateMealy_next <= zero; --NON PERMESSO
LED_out <= "0110000";
elsif (cappuccino = '1') then
stateMealy_next <= zero; --NON PERMESSO
LED_out <= "0110000";
elsif (ricarica = '1') then
stateMealy_next <= dieci;
LED_out <= "0111000";
end if;
when uno =>
--
LED_reg_1<= "0000001";
LED_reg_0<= "1001111";
if (caffe = '1') then
stateMealy_next <= uno; --NON PERMESSO
LED_out <= "0110000";
elsif (cappuccino = '1') then
stateMealy_next <= uno; --NON PERMESSO
LED_out <= "0110000";
elsif (ricarica = '1') then
stateMealy_next <= undici;
LED_out <= "0111000";
end if;
when due =>
--
LED_reg_1<= "0000001";
LED_reg_0<= "0010010";
if caffe = '1' then
stateMealy_next <= due; --NON PERMESSO
LED_out <= "0110000";
elsif cappuccino = '1' then
stateMealy_next <= due; --NON PERMESSO
LED_out <= "0110000";
elsif ricarica = '1' then
stateMealy_next <= dodici;
LED_out <= "0111000";
end if;
when tre =>
--
LED_reg_1<= "0000001";
LED_reg_0<= "0000110";
if caffe = '1' then
stateMealy_next <= tre; --NON PERMESSO
LED_out <= "0110000";
elsif cappuccino = '1' then
stateMealy_next <= tre; --NON PERMESSO
LED_out <= "0110000";
elsif ricarica = '1' then
stateMealy_next <= tredici;
LED_out <= "0111000";
end if;
when quattro =>
--
LED_reg_1<= "0000001";
LED_reg_0<= "1001100";
if caffe = '1' then
stateMealy_next <= quattro; --NON PERMESSO
LED_out <= "0110000";
elsif cappuccino = '1' then
stateMealy_next <= quattro; --NON PERMESSO
LED_out <= "0110000";
elsif ricarica = '1' then
stateMealy_next <= quattordici;
LED_out <= "0111000";
end if;
when cinque =>
--
LED_reg_1<= "0000001";
LED_reg_0<= "0100100";
if caffe = '1' then
stateMealy_next <= zero;
LED_out <= "0110001";
elsif cappuccino = '1' then
stateMealy_next <= cinque; --NON PERMESSO
LED_out <= "0110000";
elsif ricarica = '1' then
stateMealy_next <= quindici; --NON PERMESSO
LED_out <= "0111000";
end if;
when sei =>
--
LED_reg_1<= "0000001";
LED_reg_0<= "0100000";
if caffe = '1' then
stateMealy_next <= uno;
LED_out <= "0110001";
elsif cappuccino = '1' then
stateMealy_next <= zero;
LED_out <= "0000010";
elsif ricarica = '1' then
stateMealy_next <= sei; --NON PERMESSO
LED_out <= "0110000";
end if;
when sette =>
--
LED_reg_1<= "0000001";
LED_reg_0<= "0001111";
if caffe = '1' then
stateMealy_next <= due;
LED_out <= "0110001";
elsif cappuccino = '1' then
stateMealy_next <= uno;
LED_out <= "0000010";
elsif ricarica = '1' then
stateMealy_next <= sette; --NON PERMESSO
LED_out <= "0110000";
end if;
when otto =>
--
LED_reg_1<= "0000001";
LED_reg_0<= "0000000";
if caffe = '1' then
stateMealy_next <= tre;
LED_out <= "0110001";
elsif cappuccino = '1' then
stateMealy_next <= due;
LED_out <= "0000010";
elsif ricarica = '1' then
stateMealy_next <= otto; --NON PERMESSO
LED_out <= "0110000";
end if;
when nove =>
--
LED_reg_1<= "0000001";
LED_reg_0<= "0000100";
if caffe = '1' then
stateMealy_next <= quattro;
LED_out <= "0110001";
elsif cappuccino = '1' then
stateMealy_next <= tre;
LED_out <= "0000010";
elsif ricarica = '1' then
stateMealy_next <= nove; --NON PERMESSO
LED_out <= "0110000";
end if;
when dieci =>
--
LED_reg_1<= "1001111";
LED_reg_0<= "0000001";
if caffe = '1' then
stateMealy_next <= cinque;
LED_out <= "0110001";
elsif cappuccino = '1' then
stateMealy_next <= quattro;
LED_out <= "0000010";
elsif ricarica = '1' then
stateMealy_next <= dieci; --NON PERMESSO
LED_out <= "0110000";
end if;
when undici =>
--
LED_reg_1<= "1001111";
LED_reg_0<= "1001111";
if caffe = '1' then
stateMealy_next <= sei;
LED_out <= "0110001";
elsif cappuccino = '1' then
stateMealy_next <= cinque;
LED_out <= "0000010";
elsif ricarica = '1' then
stateMealy_next <= undici;--NON PERMESSO
LED_out <= "0110000";
end if;
when dodici =>
--
LED_reg_1<= "1001111";
LED_reg_0<= "0010010";
if caffe = '1' then
stateMealy_next <= sette;
LED_out <= "0110001";
elsif cappuccino = '1' then
stateMealy_next <= sei;
LED_out <= "0000010";
elsif ricarica = '1' then
stateMealy_next <= dodici;--NON PERMESSO
LED_out <= "0110000";
end if;
when tredici =>
--
LED_reg_1<= "1001111";
LED_reg_0<= "0000110";
if caffe = '1' then
stateMealy_next <= otto;
LED_out <= "0110001";
elsif cappuccino = '1' then
stateMealy_next <= sette;
LED_out <= "0000010";
elsif ricarica = '1' then
stateMealy_next <= tredici;--NON PERMESSO
LED_out <= "0110000";
end if;
when quattordici =>
--
LED_reg_1<= "1001111";
LED_reg_0<= "1001100";
if caffe = '1' then
stateMealy_next <= nove;
LED_out <= "0110001";
elsif cappuccino = '1' then
stateMealy_next <= otto;
LED_out <= "0000010";
elsif ricarica = '1' then
stateMealy_next <= quattordici;--NON PERMESSO
LED_out <= "0110000";
end if;
when quindici =>
--
LED_reg_1<= "1001111";
LED_reg_0<= "0100100";
if caffe = '1' then
stateMealy_next <= dieci;
LED_out <= "0110001";
elsif cappuccino = '1' then
stateMealy_next <= nove;
LED_out <= "0000010";
elsif ricarica = '1' then
stateMealy_next <= quindici;--NON PERMESSO
LED_out <= "0110000";
end if;
end case;
end if;
end process;
process(stateMealy_next)
begin
case stateMealy_next is
when zero =>
LED_next_1<= "0000001";
LED_next_0<= "0000001";
when uno =>
--
LED_next_1<= "0000001";
LED_next_0<= "1001111";
when due =>
--
LED_next_1<= "0000001";
LED_next_0<= "0010010";
when tre =>
--
LED_next_1<= "0000001";
LED_next_0<= "0000110";
when quattro =>
--
LED_next_1<= "0000001";
LED_next_0<= "1001100";
when cinque =>
--
LED_next_1<= "0000001";
LED_next_0<= "0100100";
when sei =>
--
LED_next_1<= "0000001";
LED_next_0<= "0100000";
when sette =>
--
LED_next_1<= "0000001";
LED_next_0<= "0001111";
when otto =>
--
LED_next_1<= "0000001";
LED_next_0<= "0000000";
when nove =>
--
LED_next_1<= "0000001";
LED_next_0<= "0000100";
when dieci =>
--
LED_next_1<= "1001111";
LED_next_0<= "0000001";
when undici =>
--
LED_next_1<= "1001111";
LED_next_0<= "1001111";
when dodici =>
--
LED_next_1<= "1001111";
LED_next_0<= "0010010";
when tredici =>
--
LED_next_1<= "1001111";
LED_next_0<= "0000110";
when quattordici =>
--
LED_next_1<= "1001111";
LED_next_0<= "1001100";
when quindici =>
--
LED_next_1<= "1001111";
LED_next_0<= "0100100";
end case;
end process;
end arch;