Commit c9693b24 authored by Ille, Ondrej, Ing.'s avatar Ille, Ondrej, Ing.

test: ERR_CAPT - Arbitration - Stuff Error feature test.

parent 63a21dfa
--------------------------------------------------------------------------------
--
-- CTU CAN FD IP Core
-- Copyright (C) 2015-2018
--
-- Authors:
-- Ondrej Ille <ondrej.ille@gmail.com>
-- Martin Jerabek <martin.jerabek01@gmail.com>
--
-- Project advisors:
-- Jiri Novak <jnovak@fel.cvut.cz>
-- Pavel Pisa <pisa@cmp.felk.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.
--
--------------------------------------------------------------------------------
--------------------------------------------------------------------------------
-- @TestInfoStart
--
-- @Purpose:
-- ERR_CAPT[ERR_POS] = ERC_POS_ARB, stuff error feature test.
--
-- @Verifies:
-- @1. Detection of stuff error in Arbitration field. Value of ERR_CAPT[ERR_POS]
-- when stuff error should have been detected in arbitration field.
--
-- @Test sequence:
-- @1. Check that ERR_CAPT contains no error (post reset).
-- @2. Generate CAN frame, force ID to contain first 4 bits dominant. Send such
-- frame by Node 1. Wait until arbitration field in Node 1. Wait for 4
-- bits and after that force bit dominant (stuff bit should be recessive).
-- Wait until Sample point and check that Error frame is being transmitted
-- by Node 1. Check that ERR_CAPT signals Stuff Error during arbitration.
--
-- @TestInfoEnd
--------------------------------------------------------------------------------
-- Revision History:
-- 12.01.2020 Created file
--------------------------------------------------------------------------------
context work.ctu_can_synth_context;
context work.ctu_can_test_context;
use lib.pkg_feature_exec_dispath.all;
package err_capt_arb_stuff_feature is
procedure err_capt_arb_stuff_feature_exec(
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 err_capt_arb_stuff_feature is
procedure err_capt_arb_stuff_feature_exec(
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
variable ID_1 : natural := 1;
variable ID_2 : natural := 2;
-- Generated frames
variable frame_1 : SW_CAN_frame_type;
-- Node status
variable stat_1 : SW_status;
variable pc_dbg : SW_PC_Debug;
variable frame_sent : boolean;
variable err_capt : SW_error_capture;
begin
-----------------------------------------------------------------------
-- @1. Check that ERR_CAPT contains no error (post reset).
-----------------------------------------------------------------------
info("Step 1");
CAN_read_error_code_capture(err_capt, ID_1, mem_bus(1));
check(err_capt.err_pos = err_pos_other, "Reset of ERR_CAPT!");
-----------------------------------------------------------------------
-- @2. Generate CAN frame, force ID to contain first 4 bits dominant.
-- Send such frame by Node 1. Wait until arbitration field in Node
-- 1. Wait for 4 bits and after that force bit dominant (stuff bit
-- should be recessive). Wait until Sample point and check that
-- Error frame is being transmitted by Node 1. Check that ERR_CAPT
-- signals Stuff Error during arbitration.
-----------------------------------------------------------------------
info("Step 2");
CAN_generate_frame(rand_ctr, frame_1);
frame_1.ident_type := BASE;
frame_1.identifier := 1; -- First 4 bits should be dominant!
CAN_send_frame(frame_1, 1, ID_1, mem_bus(1), frame_sent);
CAN_wait_tx_rx_start(true, false, ID_1, mem_bus(1));
CAN_wait_pc_state(pc_deb_arbitration, ID_1, mem_bus(1));
for i in 1 to 4 loop
CAN_wait_sample_point(iout(1).stat_bus, false);
end loop;
wait for 20 ns;
force_bus_level(DOMINANT, so.bl_force, so.bl_inject);
CAN_wait_sample_point(iout(1).stat_bus, false);
wait for 20 ns;
get_controller_status(stat_1, ID_1, mem_bus(1));
check(stat_1.error_transmission, "Error frame transmitted by Node 1!");
release_bus_level(so.bl_force);
CAN_read_error_code_capture(err_capt, ID_1, mem_bus(1));
check(err_capt.err_type = can_err_stuff, "Stuff error detected!");
check(err_capt.err_pos = err_pos_arbitration, "Error detected in Arbitration!");
CAN_wait_bus_idle(ID_1, mem_bus(1));
CAN_wait_bus_idle(ID_2, mem_bus(2));
-- The other node shoul have also detected stuff error in arbitration (due to
-- that Error frame), check it!
CAN_read_error_code_capture(err_capt, ID_2, mem_bus(2));
check(err_capt.err_type = can_err_stuff, "Stuff error detected!");
check(err_capt.err_pos = err_pos_arbitration, "Error detected in Arbitration!");
wait for 100 ns;
end procedure;
end package body;
......@@ -63,6 +63,7 @@ feature:
device_id:
dlc_can20_8_64_bytes:
err_capt_arb_bit:
err_capt_arb_stuff:
err_capt_crc_bit:
err_capt_ctrl_bit:
err_capt_ctrl_form:
......
......@@ -94,6 +94,7 @@ feature:
device_id:
dlc_can20_8_64_bytes:
err_capt_arb_bit:
err_capt_arb_stuff:
err_capt_crc_bit:
err_capt_ctrl_bit:
err_capt_ctrl_form:
......
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