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-- Company: CEI
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-- Company: CEI
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-- Engineer: Enrique Herrero
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-- Engineer: Enrique Herrero
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--
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--
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-- Create Date:
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-- Create Date:
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-- Design Name: Configurable ANN
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-- Design Name: Configurable ANN
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-- Module Name: af_sigmoid2 - Behavioral
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-- Module Name: af_sigmoid_mat - Behavioral
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-- Project Name:
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-- Project Name:
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-- Target Devices:
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-- Target Devices:
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-- Tool versions:
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-- Tool versions:
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-- Description: Sigmoid activation function implemented as a Look-Up-Table (LUT).
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-- Description: Sigmoid activation function implemented as a Look-Up-Table (LUT).
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-- Alternative set of parameters.
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-- Alternative set of parameters.
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use IEEE.STD_LOGIC_1164.ALL;
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use IEEE.STD_LOGIC_1164.ALL;
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use ieee.numeric_std.ALL;
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use ieee.numeric_std.ALL;
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use ieee.math_real.all;
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use ieee.math_real.all;
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entity af_sigmoid2 is
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entity af_sigmoid_mat is
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generic
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generic
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(
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(
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Nbit : natural := 8;
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Nbit : natural := 8;
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lsbit : natural := 10
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lsbit : natural := 10
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);
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);
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run_in : in std_logic; -- Start and input data validation
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run_in : in std_logic; -- Start and input data validation
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inputs : in std_logic_vector(Nbit-1 downto 0); -- Input data
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inputs : in std_logic_vector(Nbit-1 downto 0); -- Input data
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run_out : out std_logic; -- Output data validation, run_in for the next layer
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run_out : out std_logic; -- Output data validation, run_in for the next layer
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outputs : out std_logic_vector(Nbit-1 downto 0) -- Output data
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outputs : out std_logic_vector(Nbit-1 downto 0) -- Output data
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);
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);
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end af_sigmoid2;
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end af_sigmoid_mat;
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architecture Behavioral of af_sigmoid2 is
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architecture Behavioral of af_sigmoid_mat is
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-- Definition of internal modules, constants, signals, etc...
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-- Definition of internal modules, constants, signals, etc...
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-- Sigmoid parameters:
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-- Sigmoid parameters:
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constant f0 : real := 1.0; -- Slope at the origin
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constant f0 : real := 1.0; -- Slope at the origin
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