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CTU CAN FD IP Core
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canbus
CTU CAN FD IP Core
Commits
113e91c0
Commit
113e91c0
authored
Oct 18, 2019
by
Ille, Ondrej, Ing.
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test: RX buffer pointer kept at zero on read from empty RX buffer.
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3ee36e30
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test/feature/rx_buf_empty_read_feature_tb.vhd
test/feature/rx_buf_empty_read_feature_tb.vhd
+145
-0
test/tests_fast.yml
test/tests_fast.yml
+1
-0
test/tests_nightly.yml
test/tests_nightly.yml
+1
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test/feature/rx_buf_empty_read_feature_tb.vhd
0 → 100644
View file @
113e91c0
--------------------------------------------------------------------------------
--
-- 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:
-- RX Buffer empty - read feature test
--
-- Verifies:
-- 1. Verifies that when reading from empty RX Buffer, RX pointer is not
-- incremented!
--
-- Test sequence:
-- 1. Read pointers from RX Buffer, check pointers are 0 (DUT is post reset).
-- 2. Try to read CAN frame from RX Buffer. This should generate at least 4
-- reads from RX DATA register.
-- 3. Read pointers from RX Buffer, check pointers are still 0.
--
--------------------------------------------------------------------------------
-- Revision History:
-- 18.10.2019 Created file
--------------------------------------------------------------------------------
context
work
.
ctu_can_synth_context
;
context
work
.
ctu_can_test_context
;
use
lib
.
pkg_feature_exec_dispath
.
all
;
package
rx_buf_empty_read_feature
is
procedure
rx_buf_empty_read_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
rx_buf_empty_read_feature
is
procedure
rx_buf_empty_read_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
);
begin
o
.
outcome
:
=
true
;
-----------------------------------------------------------------------
-- 1. Read pointers from RX Buffer, check pointers are 0 (DUT is post
-- reset).
-----------------------------------------------------------------------
info
(
"Step 1: Reading RX buffer pointers for first time"
);
get_rx_buf_state
(
rx_buf_info
,
ID_1
,
mem_bus
(
1
));
check
(
rx_buf_info
.
rx_read_pointer
=
0
,
"Read pointer 0!"
);
check
(
rx_buf_info
.
rx_write_pointer
=
0
,
"Write pointer 0!"
);
-----------------------------------------------------------------------
-- 2. Try to read CAN frame from RX Buffer. This should generate at
-- least 4 reads from RX DATA register.
-----------------------------------------------------------------------
info
(
"Step 2: Try to read frame from empty RX Buffer!"
);
CAN_read_frame
(
frame_rx
,
ID_1
,
mem_bus
(
1
));
------------------------------------------------------------------------
-- 3. Read pointers from RX Buffer, check pointers are still 0.
------------------------------------------------------------------------
info
(
"Step 3: Read RX Buffer pointers again!"
);
get_rx_buf_state
(
rx_buf_info
,
ID_1
,
mem_bus
(
1
));
check
(
rx_buf_info
.
rx_read_pointer
=
0
,
"Read pointer 0!"
);
check
(
rx_buf_info
.
rx_write_pointer
=
0
,
"Write pointer 0!"
);
wait
for
1000
ns
;
end
procedure
;
end
package
body
;
test/tests_fast.yml
View file @
113e91c0
...
...
@@ -71,6 +71,7 @@ feature:
one_shot
:
no_sof_tx
:
rx_status
:
rx_buf_empty_read
:
tx_counter
:
rx_counter
:
# tran_delay:
...
...
test/tests_nightly.yml
View file @
113e91c0
...
...
@@ -98,6 +98,7 @@ feature:
one_shot
:
no_sof_tx
:
rx_status
:
rx_buf_empty_read
:
tx_counter
:
rx_counter
:
# tran_delay:
...
...
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