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CTU CAN FD IP Core
Commit 5d543e32 authored by Ille, Ondrej, Ing.'s avatar Ille, Ondrej, Ing.
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test: Remove suspend transmission test.

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    --------------------------------------------------------------------------------
    --
    -- 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:
    -- Test of Suspend transmission field of Interframe space.
    --
    -- Test sequence:
    -- 1. Set Node 1 to be error passive by configuring TX Error counter
    -- to be 128. Set Node 2 to be error active by configuring both
    -- Error counters to be 0.
    -- 2. Read out error state of both nodes. Check that Node 1 is error
    -- passive, and Node 2 is error active.
    -- Loop (Forever):
    -- 3. Set Error counter to 150 to force erro passive again!
    -- 4. Insert frame to two TXT Buffers of Node 1. Insert frame to Node 2.
    -- 5. Wait until Node 1 starts transmission.
    -- 6. Insert frame to Node 2.
    -- 7. Wait until frame is transmitted by Node 1 (end of EOF).
    -- 8. Wait for 2 Bit times, to compensate for Intermission field! see
    -- further explanation!
    -- 9. Wait for N Bit times (suspend field).
    -- 10. Give command to Node 2 to start Transmission.
    -- 11. Check that Node 1 did become receiver, not transmitter although
    -- it has frame for transmission available. It can become transmi-
    -- tter only if we waited more than 7 bits (length of Suspend)!
    -- Break out of loop in this case and check that N=8!
    --
    -- Just found out that Gedit supports insertion of emojis. Lets see how
    -- this is gonna work... 🙄🤔😳🤤🙄🙄
    --
    --------------------------------------------------------------------------------
    -- Revision History:
    -- 2.9.2018 Created file
    --------------------------------------------------------------------------------
    context work.ctu_can_synth_context;
    context work.ctu_can_test_context;
    use lib.pkg_feature_exec_dispath.all;
    package suspend_transmission_feature is
    procedure suspend_transmission_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 suspend_transmission_feature is
    procedure suspend_transmission_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 ID_1 : natural := 1;
    variable ID_2 : natural := 2;
    variable CAN_frame : SW_CAN_frame_type;
    variable frame_sent : boolean := false;
    variable mode : SW_mode := (false, false, false,
    false, true, false, false,
    false, false, false);
    variable rx_state : SW_RX_Buffer_info;
    variable error_ctrs : SW_error_counters :=
    (0, 0, 0, 0);
    variable fault_state : SW_fault_state := fc_error_active;
    variable n : integer := 0;
    variable status : SW_status;
    begin
    o.outcome := true;
    ------------------------------------------------------------------------
    -- Force Node 1 to error passive and Check it
    ------------------------------------------------------------------------
    error_ctrs.rx_counter := 150;
    set_error_counters(error_ctrs, ID_1, mem_bus(1));
    wait for 30 ns;
    get_fault_state(fault_state, ID_1, mem_bus(1));
    check(fault_state = fc_error_passive, "Node 1 not Error passive!");
    ------------------------------------------------------------------------
    -- Force Node 2 to error Active and Check it!
    ------------------------------------------------------------------------
    error_ctrs.rx_counter := 0;
    set_error_counters(error_ctrs, ID_2, mem_bus(2));
    wait for 30 ns;
    get_fault_state(fault_state, ID_2, mem_bus(2));
    check(fault_state = fc_error_active, "Node 2 not Error Active!");
    ------------------------------------------------------------------------
    -- Generate frame, hardcode ID to 514, Identifier type to BASE
    ------------------------------------------------------------------------
    CAN_generate_frame(rand_ctr, CAN_frame);
    CAN_frame.ident_type := BASE;
    CAN_frame.identifier := 514;
    while (true) loop
    --------------------------------------------------------------------
    -- Reset Error counters to 150 again.
    --------------------------------------------------------------------
    error_ctrs.rx_counter := 150;
    set_error_counters(error_ctrs, ID_1, mem_bus(1));
    --------------------------------------------------------------------
    -- Send two frames from Node 1. First will start transmission.
    -- Then Add the same frame to Node 2.
    --------------------------------------------------------------------
    CAN_send_frame(CAN_frame, 1, ID_1, mem_bus(1), frame_sent);
    CAN_send_frame(CAN_frame, 2, ID_1, mem_bus(1), frame_sent);
    info("Inserted 2 frames to Node 1");
    wait for 500 ns;
    CAN_insert_TX_frame(CAN_frame, 1, ID_2, mem_bus(2));
    info("Inserted 1 frame to Node 2");
    --------------------------------------------------------------------
    -- Wait until the end of EOF field
    --------------------------------------------------------------------
    while (protocol_type'VAL(to_integer(unsigned(
    iout(1).stat_bus(STAT_PC_STATE_HIGH downto
    STAT_PC_STATE_LOW))))
    /= eof)
    loop
    wait until rising_edge(mem_bus(1).clk_sys);
    end loop;
    while (protocol_type'VAL(to_integer(unsigned(
    iout(1).stat_bus(STAT_PC_STATE_HIGH downto
    STAT_PC_STATE_LOW))))
    = eof)
    loop
    wait until rising_edge(mem_bus(1).clk_sys);
    end loop;
    info("End of EOF field");
    wait for 40 ns;
    --------------------------------------------------------------------
    -- Wait for N + 2 Bit times. 3 is length of intermission. Thus if
    -- we wait 2 bit times, we insert the frame in the last bit of
    -- Intermission and Node 2 will start transmission right after
    -- the end of Intermission.
    -- If we wait for 3 bit times, we mark the frame as valid during
    -- first bit of Idle, and start frame one bit after the end of
    -- intermission.
    -- Thisway when N equals to number of bits we waited after the
    -- end of intermission.
    --------------------------------------------------------------------
    CAN_wait_n_bits(n + 2, true, ID_1, mem_bus(1));
    info("Waited " & integer'image(n) & " bits");
    -- Give command to the frame in Node 2 for transmission!
    send_TXT_buf_cmd(buf_set_ready, 1, ID_2, mem_bus(2));
    -- Wait until frame transmission starts on Node 1!
    while (protocol_type'VAL(to_integer(unsigned(
    iout(1).stat_bus(STAT_PC_STATE_HIGH downto
    STAT_PC_STATE_LOW))))
    /= sof)
    loop
    wait until rising_edge(mem_bus(1).clk_sys);
    end loop;
    info("Frame started");
    wait for 40 ns;
    -- Check Operational State of Node 1!
    get_controller_status(status, ID_1, mem_bus(1));
    check(status.transmitter or status.receiver,
    "Unit Not Transmitter NOR Receiver");
    if (status.receiver) then
    if (n < 8) then
    info("Unit turned receiver on bit: " & integer'image(n));
    end if;
    check(n < 8, "Unit turned receiver after 8 bit Suspend");
    elsif (status.transmitter) then
    check(n >= 8, "Suspend transmission shorter than 8 bits!");
    if (n >= 8) then
    info("Suspend transmission equal to 8 bits!");
    exit;
    end if;
    end if;
    n := n + 1;
    -- Wait until unit frame is finished (Now should be by Node 2)!
    CAN_wait_bus_idle(ID_1, mem_bus(1));
    -- Node 1 still has one frame for transmission (the one which was
    -- suspended)
    CAN_wait_frame_sent(ID_1, mem_bus(1));
    end loop;
    ------------------------------------------------------------------------
    -- Now wait until Node 1 transmitts frame which lost the arbitration
    -- so that we leave test environmnet withou pending frames in TXT
    -- Buffers.
    ------------------------------------------------------------------------
    CAN_wait_bus_idle(ID_1, mem_bus(1));
    info("Last frame was sent!");
    end procedure;
    end package body;
    \ No newline at end of file
    test/tests_fast.yml
    View file @ 5d543e32
    ......@@ -64,7 +64,6 @@ feature:
    rtr_pref:
    data_length_code:
    bus_start:
    suspend_transmission:
    data_overrun_clear:
    iterations: 1
    txtb_state:
    ......
    test/tests_nightly.yml
    View file @ 5d543e32
    ......@@ -93,7 +93,6 @@ feature:
    rtr_pref:
    data_length_code:
    bus_start:
    suspend_transmission:
    data_overrun_clear:
    iterations: 1
    txtb_state:
    ......
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