Importing waveforms from ASCII files

Try something like this:

-- Copyright (c) 2003-2005 by Aldec, Inc. All rights reserved.

--

------------------------------------------------------------------------------------

--

-- Created on Wednesday 2005-04-13, 19:37:24

--

------------------------------------------------------------------------------------

-- Details:

-- Type: Clocked file stimulus

-- Data width: 16

-- Radix of values stored in the file is binary

-- Clock input CLK sensitive to rising edge

-- Clock enable input CE active high

-- Output Q

------------------------------------------------------------------------------------

--{{ Section below this comment is automatically maintained

-- and may be overwritten

--{entity {file_stim_clkd} architecture {file_stim_arch}}

library IEEE; use IEEE.std_logic_1164.all;

entity file_stim_clkd is port( CLK : in std_logic; CE : in std_logic; Q : out std_logic_vector(15 downto 0) ); end entity;

--}} End of automatically maintained section

library IEEE; use STD.textio.all; use IEEE.std_logic_textio.all;

architecture file_stim_arch of file_stim_clkd is constant file_name : string(1 to 12) := "stimulus.txt"; file stimulus : text open READ_MODE is file_name; begin reader : process variable line_read : line; variable signal_val : std_logic_vector(15 downto 0); begin processing : while not endfile(stimulus) loop

readline(stimulus, line_read); read(line_read, signal_val);

wait until (CE='1' and rising_edge(CLK));

Mentre io pensavo ad una intro simpatica "Engineering Guy" scriveva:

Thanks, finally I found a solution very close to yours.