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-- Author: Patrick Lehmann
-- License: MIT
--
-- A generic counter module used in the StopWatch example.
--
library IEEE;
use IEEE.std_logic_1164.all;
use IEEE.numeric_std.all;
-- Package with stop watch specific types.
package StopWatch_pkg is
subtype T_BCD is unsigned(3 downto 0);
type T_BCD_Vector is array(natural range <>) of T_BCD;
type T_DIGIT_CONFIGURATION is record
Modulo : positive;
Dot : std_logic;
end record;
type T_STOPWATCH_CONFIGURATION is array(natural range <>) of T_DIGIT_CONFIGURATION;
-- Encoder that translates from 4-bit binary (BCD) to 7-segment code.
--
-- In addition, an optional dot input is supported.
component seg7_Encoder is
port (
BCDValue : in T_BCD;
Dot : in std_logic := '0';
Seg7Code : out std_logic_vector(7 downto 0)
);
end component;
component seg7_Display is
generic (
CLOCK_PERIOD : time := 10 ns;
REFRESH_RATE : time := 200 us;
DIGITS : positive
);
port (
Clock : in std_logic;
DigitValues : in T_BCD_Vector(DIGITS - 1 downto 0);
DotValues : in std_logic_vector(DIGITS - 1 downto 0) := (others => '0');
Seg7_Segments : out std_logic_vector(7 downto 0);
Seg7_Selects : out std_logic_vector(DIGITS - 1 downto 0)
);
end component;
end package;
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