Commit 4f477c3f authored by Ille, Ondrej, Ing.'s avatar Ille, Ondrej, Ing.

Added data length code feature test

parent 075c1858
--------------------------------------------------------------------------------
--
-- CTU CAN FD IP Core
-- Copyright (C) 2015-2018 Ondrej Ille <ondrej.ille@gmail.com>
--
-- Project advisors and co-authors:
-- Jiri Novak <jnovak@fel.cvut.cz>
-- Pavel Pisa <pisa@cmp.felk.cvut.cz>
-- Martin Jerabek <jerabma7@fel.cvut.cz>
-- Department of Measurement (http://meas.fel.cvut.cz/)
-- Faculty of Electrical Engineering (http://www.fel.cvut.cz)
-- Czech Technical University (http://www.cvut.cz/)
--
-- Permission is hereby granted, free of charge, to any person obtaining a copy
-- of this VHDL component and associated documentation files (the "Component"),
-- to deal in the Component without restriction, including without limitation
-- the rights to use, copy, modify, merge, publish, distribute, sublicense,
-- and/or sell copies of the Component, and to permit persons to whom the
-- Component is furnished to do so, subject to the following conditions:
--
-- The above copyright notice and this permission notice shall be included in
-- all copies or substantial portions of the Component.
--
-- THE COMPONENT IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-- IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-- FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-- AUTHORS OR COPYRIGHTHOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-- LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
-- FROM, OUT OF OR IN CONNECTION WITH THE COMPONENT OR THE USE OR OTHER DEALINGS
-- IN THE COMPONENT.
--
-- The CAN protocol is developed by Robert Bosch GmbH and protected by patents.
-- Anybody who wants to implement this IP core on silicon has to obtain a CAN
-- protocol license from Bosch.
--
--------------------------------------------------------------------------------
--------------------------------------------------------------------------------
-- Purpose:
-- Data length Code feature test. Verifies functionality of maximal DLC equal
-- to 8 for CAN 2.0 frames.
--
-- Test sequence:
-- 1. Generate CAN 2.0 Frame and set DLC higher than 8. Set higher data
-- bytes accordingly!
-- 2. Send the CAN Frame via Node 1.
-- 3. Verify that frame received by Node 2, has only DLC 8 received and
-- that higher data bytes are 0!
--------------------------------------------------------------------------------
-- Revision History:
-- 14.7.2018 Created file
--------------------------------------------------------------------------------
Library ieee;
USE IEEE.std_logic_1164.all;
USE IEEE.numeric_std.ALL;
USE ieee.math_real.ALL;
use work.CANconstants.all;
USE work.CANtestLib.All;
USE work.randomLib.All;
use work.pkg_feature_exec_dispath.all;
use work.CAN_FD_register_map.all;
package data_length_code_feature is
procedure data_length_code_feature_exec(
variable o : out feature_outputs_t;
signal so : out feature_signal_outputs_t;
signal rand_ctr : inout natural range 0 to RAND_POOL_SIZE;
signal iout : in instance_outputs_arr_t;
signal mem_bus : inout mem_bus_arr_t;
signal bus_level : in std_logic
);
end package;
package body data_length_code_feature is
procedure data_length_code_feature_exec(
variable o : out feature_outputs_t;
signal so : out feature_signal_outputs_t;
signal rand_ctr : inout natural range 0 to RAND_POOL_SIZE;
signal iout : in instance_outputs_arr_t;
signal mem_bus : inout mem_bus_arr_t;
signal bus_level : in std_logic
) is
constant ID_1 : natural := 1;
constant ID_2 : natural := 2;
variable CAN_frame : SW_CAN_frame_type;
variable CAN_frame_2 : SW_CAN_frame_type :=
(0, (OTHERS => (OTHERS => '0')), "0000", 0, '0', '0',
'0', '0', '0', (OTHERS => '0'), 0);
variable frame_sent : boolean;
begin
o.outcome := true;
------------------------------------------------------------------------
-- Generate CAN Frame and force CAN 2.0 and DLC higher than 8!
------------------------------------------------------------------------
CAN_generate_frame(rand_ctr, CAN_frame);
rand_logic_vect_v(rand_ctr, CAN_frame.dlc, 0.5);
CAN_frame.dlc(3) := '1';
CAN_frame.frame_format = NORMAL_CAN;
decode_dlc(CAN_frame.dlc, CAN_frame.data_length);
for i in 0 to data_length - 1 loop
rand_logic_vect_v(rand_ctr, CAN_frame.data(i), 0.5);
end loop;
------------------------------------------------------------------------
-- Send frame by Node 1
------------------------------------------------------------------------
CAN_send_frame(CAN_frame, 1, ID_1, mem_bus(1), frame_sent);
CAN_wait_frame_sent(ID_1, mem_bus(1));
wait for 500 ns;
------------------------------------------------------------------------
-- Read frame by Node 2 and Check that DLC is equal to 8 and higher
-- data bytes are 0!
------------------------------------------------------------------------
CAN_read_frame(CAN_frame_2, ID_2, mem_bus(2));
if (CAN_frame_2.dlc /= "1000") then
o.outcome := false;
report "Invalid DLC received!" severity error;
end if;
for i in 8 to 63 loop
if (CAN_frame_2.data(i) /= "00000000") then
report "Byte index " & integer'image(i) & " not zero!"
severity error;
end if;
end loop;
);
end procedure;
end package body;
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