test: Add Error rule G feature test.

test/feature/error_rules_g_feature_tb.vhd

+--------------------------------------------------------------------------------
+-- 
+-- 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:
+--  Fault confinement rules - rule G - feature test.
+--
+-- Verifies:
+--  1. After the successful transmission of a frame (getting ACK and no error
+--     has been detected until EOF is finished), the transmit error counter
+--     shall be decremented by 1 unless it was already 0.
+--
+-- Test sequence:
+--  1. Set TEC of Node 1 to random value till 255. Send frame by Node 1, wait
+--     till end of EOF and check that TEC is decremented at the end of EOF!
+--  2. Set TEC of Node 1 to 0. Send frame by Node 1. Wait until frame is sent
+--     and check that TEC is still 0!
+--------------------------------------------------------------------------------
+-- Revision History:
+--    13.12.2019   Created file
+--------------------------------------------------------------------------------
+
+context work.ctu_can_synth_context;
+context work.ctu_can_test_context;
+
+use lib.pkg_feature_exec_dispath.all;
+
+package error_rules_g_feature is
+    procedure error_rules_g_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 error_rules_g_feature is
+    procedure error_rules_g_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;
+        variable CAN_frame          :       SW_CAN_frame_type;
+        variable RX_CAN_frame       :       SW_CAN_frame_type;
+        variable frame_sent         :       boolean := false;
+        variable rand_value         :       natural;
+        
+        variable status             :       SW_status;
+        variable command            :       SW_command := SW_command_rst_val;
+        
+        variable rx_buf_info        :       SW_RX_Buffer_info;
+        variable mode_1             :       SW_mode := SW_mode_rst_val;
+        variable mode_2             :       SW_mode := SW_mode_rst_val;
+        
+        variable err_counters_1     :       SW_error_counters := (0, 0, 0, 0);
+        variable err_counters_2     :       SW_error_counters := (0, 0, 0, 0);
+        variable err_counters_3     :       SW_error_counters := (0, 0, 0, 0);
+        variable err_counters_4     :       SW_error_counters := (0, 0, 0, 0);
+
+        variable id_vect            :       std_logic_vector(28 downto 0);
+        variable err_capt           :       SW_error_capture;
+        
+        variable bit_waits          :       natural := 0;
+        variable pc_dbg             :       SW_PC_Debug;
+    begin
+
+        -----------------------------------------------------------------------
+        -- 1. Set TEC of Node 1 to random value till 255. Send frame by Node 1,
+        --    wait till end of EOF and check that TEC is decremented at the
+        --    end of EOF!
+        -----------------------------------------------------------------------
+        info("Step 1");
+
+        mode_1.test := true;
+        set_core_mode(mode_1, ID_1, mem_bus(1));
+
+        rand_int_v(rand_ctr, 255, err_counters_1.tx_counter);
+        if (err_counters_1.tx_counter = 0) then
+            err_counters_1.tx_counter := 1;
+        end if;
+        set_error_counters(err_counters_1, ID_1, mem_bus(1));
+        
+        CAN_generate_frame(rand_ctr, CAN_frame);
+        CAN_send_frame(CAN_frame, 1, ID_1, mem_bus(1), frame_sent);
+        CAN_wait_pc_state(pc_deb_eof, ID_1, mem_bus(1));
+
+        CAN_read_pc_debug(pc_dbg, ID_1, mem_bus(1));
+        while (pc_dbg = pc_deb_eof) loop
+            CAN_read_pc_debug(pc_dbg, ID_1, mem_bus(1));
+            if (pc_dbg = pc_deb_eof) then
+                read_error_counters(err_counters_2, ID_1, mem_bus(1));
+                check(err_counters_1.tx_counter = err_counters_2.tx_counter,
+                        "TEC not decremented before end of EOF!");
+            end if;
+            wait for 50 ns; -- To make checks more sparse
+        end loop;
+        
+        read_error_counters(err_counters_2, ID_1, mem_bus(1));
+        check(err_counters_1.tx_counter - 1 = err_counters_2.tx_counter,
+                "TEC decremented by 1 after EOF");
+
+        -----------------------------------------------------------------------
+        -- 2. Set TEC of Node 1 to 0. Send frame by Node 1. Wait until frame is
+        --    sent and check that TEC is still 0!
+        -----------------------------------------------------------------------
+        info("Step 2");
+
+        err_counters_1.tx_counter := 0;
+        set_error_counters(err_counters_1, ID_1, mem_bus(1));
+
+        CAN_generate_frame(rand_ctr, CAN_frame);
+        CAN_send_frame(CAN_frame, 1, ID_1, mem_bus(1), frame_sent);
+        CAN_wait_frame_sent(ID_1, mem_bus(1));
+
+        CAN_wait_bus_idle(ID_1, mem_bus(1));
+        CAN_wait_bus_idle(ID_2, mem_bus(2));
+        
+        read_error_counters(err_counters_2, ID_1, mem_bus(1));
+        check(err_counters_2.tx_counter = 0, "TEC remains zero!");
+
+    end procedure;
+
+end package body;
\ No newline at end of file

test/tests_fast.yml

@@ -68,6 +68,7 @@ feature:
         error_rules_e:
         error_rules_f_tx:
         error_rules_f_rx:
+        error_rules_g:
         fault_state:
         mode_loopback:
         mode_listen_only:

test/tests_nightly.yml

@@ -99,6 +99,7 @@ feature:
         error_rules_e:
         error_rules_f_tx:
         error_rules_f_rx:
+        error_rules_g:
         fault_state:
         mode_loopback:
             iterations: 10