Subversion Repositories etherlab

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-- EtherLab Common Package                                                    --

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-- Copyright (C)2012  Mathias Hörtnagl <mathias.hoertnagl@gmail.com>          --

--                                                                            --

-- This program is free software: you can redistribute it and/or modify       --

-- it under the terms of the GNU General Public License as published by       --

-- the Free Software Foundation, either version 3 of the License, or          --

-- (at your option) any later version.                                        --

--                                                                            --

-- This program is distributed in the hope that it will be useful,            --

-- but WITHOUT ANY WARRANTY; without even the implied warranty of             --

-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the              --

-- GNU General Public License for more details.                               --

--                                                                            --

-- You should have received a copy of the GNU General Public License          --

-- along with this program.  If not, see <http://www.gnu.org/licenses/>.      --

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library ieee;

use ieee.std_logic_1164.all;

use ieee.numeric_std.all;

package common is

   -- Array for channel data.

   type data_t is array(7 downto 0) of std_logic_vector(15 downto 0);

   -- Channel constants.

   constant CHANNEL_A : natural range 0 to 7 := 0;

   constant CHANNEL_B : natural range 0 to 7 := 1;

   constant CHANNEL_C : natural range 0 to 7 := 2;

   constant CHANNEL_D : natural range 0 to 7 := 3;

   constant CHANNEL_E : natural range 0 to 7 := 4;

   constant CHANNEL_F : natural range 0 to 7 := 5;

   constant CHANNEL_G : natural range 0 to 7 := 6;

   constant CHANNEL_H : natural range 0 to 7 := 7;

   -- Check, if channel flag is set.

   function isSet(el_chnl : std_logic_vector; channel : natural) return boolean;

end common;

package body common is

   -- Check, if channel flag is set.

   function isSet(el_chnl : std_logic_vector; channel : natural)

   return boolean is

   begin

      return (el_chnl(channel) = '1');

   end;

end common;