auk_vit_vit_var_enc_ent.vhd

一个完整的viterbi译码程序和测试的程序

-------------------------------------------------------------------------
-------------------------------------------------------------------------
--
-- Revision Control Information
--
-- Description	:  Convolutional Encoder function for Viterbi Decoder
--                 with multicode support
--
-- ALTERA Proprietary
-- Copyright 1999 (c) Altera Corporation
-- All rights reserved
--
-------------------------------------------------------------------------
-------------------------------------------------------------------------

library ieee;
use ieee.std_logic_1164.all;

Entity auk_vit_vit_var_enc is
	Generic (
		n : NATURAL := 2;
		L_max : NATURAL := 7;
		L_code	: NATURAL  := 7;
		pol_sel : NATURAL := 1; 
		ga : STRING := "91_91";
		gb : STRING := "121_101";
		gc : STRING := "0_125";
		gd : STRING := "0_0";
		ge : STRING := "0_0";
		gf : STRING := "0_0";
		gg : STRING := "0_0"
	);
	Port (
		state : in Std_Logic_Vector(L_max downto 1);
 		vector : out Std_Logic_Vector(n downto 1)
	);	
end entity auk_vit_vit_var_enc;