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aentingeraentinger
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Writing test code for util::calc_can_bit_timing.
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‎libraries/CAN/extras/test/CMakeLists.txt

Lines changed: 3 additions & 1 deletion
Original file line numberDiff line numberDiff line change
@@ -12,10 +12,12 @@ set(CMAKE_RUNTIME_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/bin)
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set(TEST_TARGET ${CMAKE_PROJECT_NAME})
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##########################################################################
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set(TEST_TARGET_SRCS
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src/test_calc_can_bit_timinig.cpp
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src/test_main.cpp
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../../src/CanUtil.cpp
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)
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##########################################################################
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add_compile_options(-Wall -Wextra -Wpedantic -Werror)
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add_compile_options(-Wall -Wextra -Wpedantic)
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##########################################################################
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set(CMAKE_C_FLAGS ${CMAKE_C_FLAGS} "--coverage")
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set(CMAKE_CXX_FLAGS ${CMAKE_CXX_FLAGS} "--coverage -Wno-deprecated-copy")

‎libraries/CAN/extras/test/src/test_calc_can_bit_timinig.cpp

Lines changed: 142 additions & 0 deletions
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/*
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* Copyright (c) 2022 by Alexander Entinger <a.entinger@arduino.cc>
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* CAN library for Arduino.
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*
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* This file is free software; you can redistribute it and/or modify
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* it under the terms of either the GNU General Public License version 2
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* or the GNU Lesser General Public License version 2.1, both as
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* published by the Free Software Foundation.
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*/
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/**************************************************************************************
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INCLUDE
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**************************************************************************************/
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#include <catch2/catch.hpp>
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#include "CanUtil.h"
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/**************************************************************************************
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TEST CODE
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**************************************************************************************/
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SCENARIO("calc_can_bit_timing", "[calc_can_bit_timing]")
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{
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GIVEN("Santiago")
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{
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static uint32_t const F_CAN_CLK_Hz = 20*1000*1000UL;
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static uint32_t const CAN_TIME_QUANTA_per_Bit = 32; /* TQ */
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WHEN("CanBitRate::BR_125k")
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{
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auto [is_valid_baudrate, baud_rate_prescaler, time_segment_1, time_segment_2, synchronization_jump_width] =
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util::calc_can_bit_timing(CanBitRate::BR_125k, F_CAN_CLK_Hz, CAN_TIME_QUANTA_per_Bit);
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THEN("")
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{
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REQUIRE(is_valid_baudrate == true);
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REQUIRE(baud_rate_prescaler == 5);
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REQUIRE(time_segment_1 == 23);
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REQUIRE(time_segment_2 == 8);
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REQUIRE(synchronization_jump_width == 1);
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};
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}
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WHEN("CanBitRate::BR_250k")
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{
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auto [is_valid_baudrate, baud_rate_prescaler, time_segment_1, time_segment_2, synchronization_jump_width] =
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util::calc_can_bit_timing(CanBitRate::BR_250k, F_CAN_CLK_Hz, CAN_TIME_QUANTA_per_Bit);
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THEN("")
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{
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REQUIRE(is_valid_baudrate == true);
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REQUIRE(baud_rate_prescaler == 4);
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REQUIRE(time_segment_1 == 14);
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REQUIRE(time_segment_2 == 5);
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REQUIRE(synchronization_jump_width == 1);
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};
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}
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WHEN("CanBitRate::BR_500k")
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{
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auto [is_valid_baudrate, baud_rate_prescaler, time_segment_1, time_segment_2, synchronization_jump_width] =
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util::calc_can_bit_timing(CanBitRate::BR_500k, F_CAN_CLK_Hz, CAN_TIME_QUANTA_per_Bit);
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THEN("")
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{
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REQUIRE(is_valid_baudrate == true);
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REQUIRE(baud_rate_prescaler == 2);
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REQUIRE(time_segment_1 == 14);
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REQUIRE(time_segment_2 == 5);
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REQUIRE(synchronization_jump_width == 1);
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};
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}
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WHEN("CanBitRate::BR_1000k")
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{
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auto [is_valid_baudrate, baud_rate_prescaler, time_segment_1, time_segment_2, synchronization_jump_width] =
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util::calc_can_bit_timing(CanBitRate::BR_1000k, F_CAN_CLK_Hz, CAN_TIME_QUANTA_per_Bit);
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THEN("")
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{
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REQUIRE(is_valid_baudrate == true);
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REQUIRE(baud_rate_prescaler == 1);
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REQUIRE(time_segment_1 == 14);
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REQUIRE(time_segment_2 == 5);
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REQUIRE(synchronization_jump_width == 1);
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};
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}
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}
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GIVEN("Portenta H33")
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{
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static uint32_t const F_CAN_CLK_Hz = 24*1000*1000UL;
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static uint32_t const CAN_TIME_QUANTA_per_Bit = 32; /* TQ */
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WHEN("CanBitRate::BR_125k")
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{
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auto [is_valid_baudrate, baud_rate_prescaler, time_segment_1, time_segment_2, synchronization_jump_width] =
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util::calc_can_bit_timing(CanBitRate::BR_125k, F_CAN_CLK_Hz, CAN_TIME_QUANTA_per_Bit);
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THEN("")
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{
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REQUIRE(is_valid_baudrate == true);
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REQUIRE(baud_rate_prescaler == 6);
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REQUIRE(time_segment_1 == 23);
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REQUIRE(time_segment_2 == 8);
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REQUIRE(synchronization_jump_width == 1);
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};
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}
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WHEN("CanBitRate::BR_250k")
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{
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auto [is_valid_baudrate, baud_rate_prescaler, time_segment_1, time_segment_2, synchronization_jump_width] =
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util::calc_can_bit_timing(CanBitRate::BR_250k, F_CAN_CLK_Hz, CAN_TIME_QUANTA_per_Bit);
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THEN("")
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{
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REQUIRE(is_valid_baudrate == true);
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REQUIRE(baud_rate_prescaler == 3);
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REQUIRE(time_segment_1 == 23);
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REQUIRE(time_segment_2 == 8);
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REQUIRE(synchronization_jump_width == 1);
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};
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}
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WHEN("CanBitRate::BR_500k")
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{
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auto [is_valid_baudrate, baud_rate_prescaler, time_segment_1, time_segment_2, synchronization_jump_width] =
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util::calc_can_bit_timing(CanBitRate::BR_500k, F_CAN_CLK_Hz, CAN_TIME_QUANTA_per_Bit);
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THEN("")
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{
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REQUIRE(is_valid_baudrate == true);
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REQUIRE(baud_rate_prescaler == 2);
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REQUIRE(time_segment_1 == 17);
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REQUIRE(time_segment_2 == 6);
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REQUIRE(synchronization_jump_width == 1);
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};
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}
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WHEN("CanBitRate::BR_1000k")
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{
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auto [is_valid_baudrate, baud_rate_prescaler, time_segment_1, time_segment_2, synchronization_jump_width] =
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util::calc_can_bit_timing(CanBitRate::BR_1000k, F_CAN_CLK_Hz, CAN_TIME_QUANTA_per_Bit);
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THEN("")
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{
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REQUIRE(is_valid_baudrate == true);
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REQUIRE(baud_rate_prescaler == 1);
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REQUIRE(time_segment_1 == 17);
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REQUIRE(time_segment_2 == 6);
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REQUIRE(synchronization_jump_width == 1);
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};
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}
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}
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}

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