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Maquina.vhd
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Maquina.vhd
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LIBRARY IEEE;
USE IEEE.STD_LOGIC_1164.ALL;
USE ieee.numeric_std.ALL;
ENTITY Maquina IS
PORT (
reset : IN std_logic;
D025 : OUT STD_LOGIC;
D050 : OUT STD_LOGIC;
D100 : OUT STD_LOGIC;
L_AGUA : OUT STD_LOGIC;
L_SUCO : OUT STD_LOGIC;
agua : IN STD_LOGIC;
suco : IN STD_LOGIC;
M100 : IN STD_LOGIC;
M050 : IN STD_LOGIC;
M025 : IN STD_LOGIC;
clk : IN std_logic;
mr025 : OUT unsigned(7 DOWNTO 0) := (OTHERS => '0');
mr050 : OUT unsigned(7 DOWNTO 0) := (OTHERS => '0');
mr100 : OUT unsigned(7 DOWNTO 0) := (OTHERS => '0');
ir025 : IN unsigned(7 DOWNTO 0);
ir050 : IN unsigned(7 DOWNTO 0);
ir100 : IN unsigned(7 DOWNTO 0);
iAgua : IN unsigned(7 DOWNTO 0);
iSuco : IN unsigned(7 DOWNTO 0);
mAgua : OUT unsigned(7 DOWNTO 0);
mSuco : OUT unsigned(7 DOWNTO 0);
stts : OUT std_logic_vector(2 DOWNTO 0);
DEV : IN std_logic;
L_DISP : OUT std_logic;
--abaixo portas de teste remover
--st025 : OUT unsigned(7 DOWNTO 0);
--st050 : OUT unsigned(7 DOWNTO 0);
--st100 : OUT unsigned(7 DOWNTO 0);
u025 : OUT std_logic := '0';
u050 : OUT std_logic := '0';
u100 : OUT std_logic := '0'
);
END Maquina;
ARCHITECTURE Behavioral OF Maquina IS
TYPE STATE_TYPE IS (R000, R025, R050, R075, R100, R125, R150, R175);
SIGNAL estado : STATE_TYPE := R000;
BEGIN
PROCESS (clk, reset)
VARIABLE vmr025 : unsigned(7 DOWNTO 0) := (OTHERS => '0'); -- guarda as quantidades de moeda nessa "seção"
VARIABLE vmr050 : unsigned(7 DOWNTO 0) := (OTHERS => '0');
VARIABLE vmr100 : unsigned(7 DOWNTO 0) := (OTHERS => '0');
VARIABLE t025 : unsigned(7 DOWNTO 0) := (OTHERS => '0');
VARIABLE t050 : unsigned(7 DOWNTO 0) := (OTHERS => '0');
VARIABLE t100 : unsigned(7 DOWNTO 0) := (OTHERS => '0');
VARIABLE count_agua : unsigned(7 DOWNTO 0) := (OTHERS => '0');
VARIABLE count_suco : unsigned(7 DOWNTO 0) := (OTHERS => '0');
VARIABLE status : std_logic_vector(2 DOWNTO 0);
BEGIN
IF reset = '1' THEN
estado <= R000;
status := "000";
--reseta as moeda
vmr025 := (OTHERS => '0'); -- guarda as quantidades de moeda nessa "seção"
vmr050 := (OTHERS => '0');
vmr100 := (OTHERS => '0');
--inicializa as moedas
t025 := ir025;
t050 := ir050;
t100 := ir100;
mr025 <= t025;
mr050 <= t050;
mr100 <= t100;
--inicializa agua e suco
count_agua := iAgua;
count_suco := iSuco;
mAgua <= count_agua;
mSuco <= count_suco;
ELSIF clk'EVENT AND clk = '1' THEN
L_DISP <= '0';
IF DEV = '1' THEN -- se foi pedido a devolucao
u025 <= '0';
u050 <= '0';
u100 <= '0';
IF vmr025 > 0 OR vmr050 > 0 OR vmr100 > 0 THEN
vmr025 := (OTHERS => '0');
vmr050 := (OTHERS => '0');
vmr100 := (OTHERS => '0');
L_DISP <= '1';
END IF;
estado <= R000;
status := "010";
ELSE
CASE estado IS
WHEN R000 =>
L_AGUA <= '0'; -- para de liberar agua
L_SUCO <= '0'; -- para de liberar suco
-- para de liberar moedas caso eu tenha dado troco
D025 <= '0';
D050 <= '0';
D100 <= '0';
u025 <= '0';
u050 <= '0';
u100 <= '0';
status := "000";
REPORT "estado r000";
IF agua = '1' OR suco = '1' THEN
status := "011";
estado <= R000;
END IF;
IF M025 = '1' THEN
estado <= R025;
vmr025 := vmr025 + 1;
ELSIF M050 = '1' THEN
estado <= R050;
vmr050 := vmr050 + 1;
ELSIF M100 = '1' THEN
estado <= R100;
vmr100 := vmr100 + 1;
END IF;
WHEN R025 =>
REPORT "estado r025";
u050 <= '0';
u100 <= '0';
u025 <= '1'; --seta visor de 25
IF agua = '1' OR suco = '1' THEN
status := "011";
estado <= R025;
END IF;
IF M025 = '1' THEN
estado <= R050;
vmr025 := vmr025 + 1;
ELSIF M050 = '1' THEN
estado <= R075;
vmr050 := vmr050 + 1;
ELSIF M100 = '1' THEN
estado <= R125;
vmr100 := vmr100 + 1;
END IF;
WHEN R050 =>
u025 <= '0';
u050 <= '1'; --seta visor de 50
u100 <= '0';
REPORT "estado r050";
IF agua = '1' OR suco = '1' THEN
status := "011";
estado <= R050;
END IF;
IF M025 = '1' THEN
estado <= R075;
vmr025 := vmr025 + 1;
ELSIF M050 = '1' THEN
estado <= R100;
vmr050 := vmr050 + 1;
ELSIF M100 = '1' THEN
estado <= R150;
vmr100 := vmr100 + 1;
END IF;
WHEN R075 =>
REPORT "estado r075";
u025 <= '1';
u050 <= '1';
u100 <= '0';
IF agua = '1' OR suco = '1' THEN
status := "011";
estado <= R075;
END IF;
IF M025 = '1' THEN
estado <= R100;
vmr025 := vmr025 + 1;
ELSIF M050 = '1' THEN
estado <= R125;
vmr050 := vmr050 + 1;
ELSIF M100 = '1' THEN
estado <= R175;
vmr100 := vmr100 + 1;
END IF;
WHEN R100 =>
REPORT "estado r100";
-- caso eu tenha devolvido a moeda inserida
-- pois passou de 175 para de dar moeda de um real
D100 <= '0';
u025 <= '0';
u050 <= '0';
u100 <= '1';
IF agua = '1' THEN
-- entrega agua e termina a operacao
IF count_agua > 0 THEN
L_AGUA <= '1';
count_agua := count_agua - 1;
status := "001";
ELSE
status := "100";
estado <= R100;
END IF;
ELSE -- se nao continua processamento normal
IF suco = '1' THEN
status := "011";
estado <= R100;
END IF;
IF M025 = '1' THEN
estado <= R125;
vmr025 := vmr025 + 1;
ELSIF M050 = '1' THEN
estado <= R150;
vmr050 := vmr050 + 1;
ELSIF M100 = '1' THEN
IF t025 > 0 THEN
-- se eu tiver troco de 25 cents
D025 <= '1';
t025 := t025 - 1; -- diminuo uma moeda de 25
vmr100 := vmr100 + 1;
estado <= R175;
ELSE
D100 <= '1';
status := "011";
estado <= R100;
END IF;
END IF;
END IF;
WHEN R125 =>
REPORT "estado r125";
D100 <= '0'; -- evita dar um monte de moeda
u025 <= '1';
u050 <= '0';
u100 <= '1';
IF agua = '1' THEN
IF count_agua > 0 THEN
IF t025 > 0 THEN
L_AGUA <= '1';
D025 <= '1';
t025 := t025 - 1;
count_agua := count_agua - 1;
status := "001";
ELSE
status := "101";
estado <= R125;
END IF;
ELSE
status := "100";
estado <= R125;
END IF;
ELSE
IF suco = '1' THEN
status := "011";
estado <= R125;
END IF;
IF M025 = '1' THEN
estado <= R150;
vmr025 := vmr025 + 1;
ELSIF M050 = '1' THEN
estado <= R175;
vmr050 := vmr050 + 1;
ELSIF M100 = '1' THEN
IF t050 > 0 THEN
-- se eu tiver troco de 50 cents
D050 <= '1';
t050 := t050 - 1; -- diminuo uma moeda de 50
vmr100 := vmr100 + 1;
estado <= R175;
ELSE
D100 <= '1';
status := "011";
estado <= R125;
END IF;
END IF;
END IF;
WHEN R150 =>
REPORT "estado r150";
D100 <= '0'; -- evita dar um monte de moeda
D050 <= '0'; -- evita dar um monte de moeda
u025 <= '0';
u050 <= '1';
u100 <= '1';
IF agua = '1' THEN
IF count_agua > 0 THEN
IF t050 > 0 THEN
L_AGUA <= '1';
D050 <= '1';
t050 := t050 - 1;
count_agua := count_agua - 1;
status := "001";
ELSE
status := "101";
estado <= R150;
END IF;
ELSE
status := "100";
estado <= R150;
END IF;
ELSE
IF suco = '1' THEN
status := "011";
estado <= R150;
END IF;
IF M025 = '1' THEN
estado <= R175;
vmr025 := vmr025 + 1;
ELSIF M050 = '1' THEN
IF t025 > 0 THEN
-- se eu tiver troco de 25 cents
D025 <= '1';
t025 := t025 - 1; -- diminuo uma moeda de 25
vmr050 := vmr050 + 1;
estado <= R175;
ELSE
D050 <= '1';
status := "011";
estado <= R150;
END IF;
ELSIF M100 = '1' THEN
IF t025 = 0 OR t050 = 0 THEN
D100 <= '1';
status := "011";
estado <= R150;
ELSE
D050 <= '1';
t050 := t050 - 1;
D025 <= '1';
t025 := t025 - 1;
estado <= R175;
vmr100 := vmr100 + 1;
END IF;
END IF;
END IF;
WHEN R175 =>
REPORT "estado r175";
-- se eu cheguei nesse estado por excesso de dinheiro
-- (passou de 1,75) então reseta os sinais de moeda
-- para não ficar dando dinheiro pra galere
D025 <= '0';
D050 <= '0';
D100 <= '0';
u025 <= '1';
u050 <= '1';
u100 <= '1';
IF suco = '1' THEN
-- entrega agua e termina a operacao
IF count_suco > 0 THEN
L_SUCO <= '1';
count_suco := count_suco - 1;
status := "001";
ELSE
status := "100";
estado <= R175;
END IF;
ELSIF agua = '1' THEN
IF count_agua > 0 THEN
IF t025 = 0 OR t050 = 0 THEN
status := "101";
estado <= R175;
ELSE
L_AGUA <= '1';
D050 <= '1';
D025 <= '1';
t050 := t050 - 1;
t025 := t025 - 1;
count_agua := count_agua - 1;
status := "001";
END IF;
ELSE
status := "100";
estado <= R150;
END IF;
ELSE
IF M025 = '1' THEN
D025 <= '1';
estado <= R175;
ELSIF M050 = '1' THEN
D050 <= '1';
estado <= R175;
ELSIF M100 = '1' THEN
D100 <= '1';
estado <= R175;
END IF;
END IF;
END CASE;
END IF;
-- escreve a quantidade de moedas nos sinais de saida
--st025 <= vmr025;
--st050 <= vmr050;
--st100 <= vmr100;
-- atualiza total de variaveis
IF status = "001" THEN
-- atualiza moedas
t025 := t025 + vmr025;
t050 := t050 + vmr050;
t100 := t100 + vmr100;
mr025 <= t025;
mr050 <= t050;
mr100 <= t100;
--atualiza os produtos
mAgua <= count_agua;
mSuco <= count_suco;
vmr025 := (OTHERS => '0'); -- guarda as quantidades de moeda nessa "seção"
vmr050 := (OTHERS => '0');
vmr100 := (OTHERS => '0');
estado <= R000;
END IF;
stts <= status;
END IF;
END PROCESS;
END Behavioral;