Commit 2f9c5127 authored by Ille, Ondrej, Ing.'s avatar Ille, Ondrej, Ing.

test: Add STATUS[RXNE] feature test.

parent 560fea6c
--------------------------------------------------------------------------------
--
-- 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.
--
--------------------------------------------------------------------------------
--------------------------------------------------------------------------------
-- Purpose:
-- STATUS[RXNE] feature test.
--
-- Verifies:
-- 1. When no frame is stored in RX Buffer, STATUS[RXNE] is not set.
-- 2. When one or more frames is stored in RX Buffer, STATUS[RXNE] is set.
-- 3. STATUS[RXNE] is not set when last word of last frame in RX Buffer is
-- read.
--
-- Test sequence:
-- 1. Read STATUS[RXNE] of Node 1 and check it is not set. Send random amount
-- of CAN frames by Node 2 and wait until they are received. Check that
-- after each one, STATUS[RXNE] is set.
-- 2. Read out frame by frame and check that STATUS[RXNE] is still set. Read
-- all frames but last one.
-- 3. Read out last frame word by word and check that STATUS[RXNE] is still
-- set and STATUS[RXNE] is not set after reading out last word.
--------------------------------------------------------------------------------
-- Revision History:
-- 31.10.2019 Created file
--------------------------------------------------------------------------------
context work.ctu_can_synth_context;
context work.ctu_can_test_context;
use lib.pkg_feature_exec_dispath.all;
package status_rxne_feature is
procedure status_rxne_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 status_rxne_feature is
procedure status_rxne_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
variable rand_value : real;
variable alc : natural;
-- Some unit lost the arbitration...
-- 0 - initial , 1-Node 1 turned rec, 2 - Node 2 turned rec
variable unit_rec : natural := 0;
variable ID_1 : natural := 1;
variable ID_2 : natural := 2;
variable r_data : std_logic_vector(31 downto 0) :=
(OTHERS => '0');
-- Generated frames
variable frame_1 : SW_CAN_frame_type;
variable frame_2 : SW_CAN_frame_type;
variable frame_rx : SW_CAN_frame_type;
-- Node status
variable stat_1 : SW_status;
variable stat_2 : SW_status;
variable pc_dbg : SW_PC_Debug;
variable txt_buf_state : SW_TXT_Buffer_state_type;
variable rx_buf_info : SW_RX_Buffer_info;
variable frames_equal : boolean := false;
variable id_vect : std_logic_vector(28 downto 0);
variable command : SW_command := SW_command_rst_val;
variable num_frames : integer;
begin
o.outcome := true;
-----------------------------------------------------------------------
-- 1. Read STATUS[RXNE] of Node 1 and check it is not set. Send
-- random amount of CAN frames by Node 2 and wait until they are
-- received. Check that after each one, STATUS[RXNE] is set.
-----------------------------------------------------------------------
info("Step 1");
get_controller_status(stat_1, ID_1, mem_bus(1));
check_false(stat_1.receive_buffer, "RX Buffer empty");
rand_int_v(rand_ctr, 6, num_frames);
num_frames := num_frames + 1;
CAN_generate_frame(rand_ctr, frame_1);
frame_1.rtr := RTR_FRAME;
frame_1.frame_format := NORMAL_CAN;
CAN_insert_TX_frame(frame_1, 1, ID_2, mem_bus(2));
for i in 0 to num_frames - 1 loop
send_TXT_buf_cmd(buf_set_ready, 1, ID_2, mem_bus(2));
CAN_wait_frame_sent(ID_1, mem_bus(1));
get_controller_status(stat_1, ID_1, mem_bus(1));
check(stat_1.receive_buffer, "RX Buffer not empty");
end loop;
-----------------------------------------------------------------------
-- 2. Read out frame by frame and check that STATUS[RXNE] is still set.
-- Read all frames but last one.
-----------------------------------------------------------------------
info("Step 2");
for i in 0 to num_frames - 2 loop
CAN_read_frame(frame_rx, ID_1, mem_bus(1));
get_controller_status(stat_1, ID_1, mem_bus(1));
check(stat_1.receive_buffer, "RX Buffer not empty");
end loop;
-----------------------------------------------------------------------
-- 3. Read out last frame word by word and check that STATUS[RXNE] is
-- still set and STATUS[RXNE] is not set after reading out last
-- word.
-----------------------------------------------------------------------
for i in 0 to 3 loop -- RTR frame has 4 words in RX Buffer
CAN_read(r_data, RX_DATA_ADR, ID_1, mem_bus(1));
get_controller_status(stat_1, ID_1, mem_bus(1));
if (i = 3) then
check_false(stat_1.receive_buffer,
"STATUS[RXNE] not set after last word was read out!");
else
check(stat_1.receive_buffer,
"STATUS[RXNE] set before last word was read out!");
end if;
end loop;
wait for 100 ns;
end procedure;
end package body;
...@@ -82,6 +82,7 @@ feature: ...@@ -82,6 +82,7 @@ feature:
rx_buf_empty_read: rx_buf_empty_read:
tx_counter: tx_counter:
rx_counter: rx_counter:
status_rxne:
# tran_delay: # tran_delay:
tx_arb_time_tran: tx_arb_time_tran:
# timestamp_options: # timestamp_options:
......
...@@ -110,6 +110,7 @@ feature: ...@@ -110,6 +110,7 @@ feature:
rx_buf_empty_read: rx_buf_empty_read:
tx_counter: tx_counter:
rx_counter: rx_counter:
status_rxne:
# tran_delay: # tran_delay:
tx_arb_time_tran: tx_arb_time_tran:
# timestamp_options: # timestamp_options:
......
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