takashi kadono / Mbed OS Nucleo446_SSD1331

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Dependencies:   ssd1331

mbed-os/TESTS/mbedmicro-rtos-mbed/kernel_tick_count/main.cpp@3:f3764f852aa8, 2018-10-11 (annotated)

Committer:
kadonotakashi
Date:
Thu Oct 11 02:27:46 2018 +0000
Revision:
3:f3764f852aa8
Parent:
0:8fdf9a60065b 
Nucreo 446 + SSD1331 test version;

Who changed what in which revision?

UserRevisionLine numberNew contents of line
kadonotakashi 0:8fdf9a60065b 1 /* mbed Microcontroller Library
kadonotakashi 0:8fdf9a60065b 2 * Copyright (c) 2018-2018 ARM Limited
kadonotakashi 0:8fdf9a60065b 3 *
kadonotakashi 0:8fdf9a60065b 4 * Licensed under the Apache License, Version 2.0 (the "License");
kadonotakashi 0:8fdf9a60065b 5 * you may not use this file except in compliance with the License.
kadonotakashi 0:8fdf9a60065b 6 * You may obtain a copy of the License at
kadonotakashi 0:8fdf9a60065b 7 *
kadonotakashi 0:8fdf9a60065b 8 * http://www.apache.org/licenses/LICENSE-2.0
kadonotakashi 0:8fdf9a60065b 9 *
kadonotakashi 0:8fdf9a60065b 10 * Unless required by applicable law or agreed to in writing, software
kadonotakashi 0:8fdf9a60065b 11 * distributed under the License is distributed on an "AS IS" BASIS,
kadonotakashi 0:8fdf9a60065b 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
kadonotakashi 0:8fdf9a60065b 13 * See the License for the specific language governing permissions and
kadonotakashi 0:8fdf9a60065b 14 * limitations under the License.
kadonotakashi 0:8fdf9a60065b 15 */
kadonotakashi 0:8fdf9a60065b 16 #include "greentea-client/test_env.h"
kadonotakashi 0:8fdf9a60065b 17 #include "utest/utest.h"
kadonotakashi 0:8fdf9a60065b 18 #include "unity/unity.h"
kadonotakashi 0:8fdf9a60065b 19
kadonotakashi 0:8fdf9a60065b 20 #include "rtos/Kernel.h"
kadonotakashi 0:8fdf9a60065b 21 #include "mbed.h"
kadonotakashi 0:8fdf9a60065b 22
kadonotakashi 0:8fdf9a60065b 23
kadonotakashi 0:8fdf9a60065b 24 using utest::v1::Case;
kadonotakashi 0:8fdf9a60065b 25
kadonotakashi 0:8fdf9a60065b 26 #define TEST_REPEAT_COUNT 1000
kadonotakashi 0:8fdf9a60065b 27 #define NUM_WAIT_TICKS 1000
kadonotakashi 0:8fdf9a60065b 28
kadonotakashi 0:8fdf9a60065b 29 // all in [us]
kadonotakashi 0:8fdf9a60065b 30 #define ONE_SECOND 1000000
kadonotakashi 0:8fdf9a60065b 31 #define SMALL_DELTA 1500 // 0.15%
kadonotakashi 0:8fdf9a60065b 32 #define BIG_DELTA 15000 // 1.5%
kadonotakashi 0:8fdf9a60065b 33
kadonotakashi 0:8fdf9a60065b 34 /** Test if kernel ticker frequency is 1kHz
kadonotakashi 0:8fdf9a60065b 35
kadonotakashi 0:8fdf9a60065b 36 Given a RTOS kernel ticker
kadonotakashi 0:8fdf9a60065b 37 When check it frequency
kadonotakashi 0:8fdf9a60065b 38 Then the the frequency is 1kHz
kadonotakashi 0:8fdf9a60065b 39 */
kadonotakashi 0:8fdf9a60065b 40 void test_frequency()
kadonotakashi 0:8fdf9a60065b 41 {
kadonotakashi 0:8fdf9a60065b 42 uint32_t freq = osKernelGetTickFreq();
kadonotakashi 0:8fdf9a60065b 43 TEST_ASSERT_EQUAL_UINT32_MESSAGE(1000, freq, "Expected SysTick frequency is 1kHz");
kadonotakashi 0:8fdf9a60065b 44 }
kadonotakashi 0:8fdf9a60065b 45
kadonotakashi 0:8fdf9a60065b 46 /** Test if kernel ticker increments by one
kadonotakashi 0:8fdf9a60065b 47
kadonotakashi 0:8fdf9a60065b 48 Given a RTOS kernel ticker
kadonotakashi 0:8fdf9a60065b 49 When perform subsequent calls of @a rtos::Kernel::get_ms_count
kadonotakashi 0:8fdf9a60065b 50 Then subsequent reads should not differ by more than one
kadonotakashi 0:8fdf9a60065b 51 */
kadonotakashi 0:8fdf9a60065b 52 void test_increment(void)
kadonotakashi 0:8fdf9a60065b 53 {
kadonotakashi 0:8fdf9a60065b 54 for (uint32_t i = 0; i < TEST_REPEAT_COUNT; i++) {
kadonotakashi 0:8fdf9a60065b 55 const uint64_t start = rtos::Kernel::get_ms_count();
kadonotakashi 0:8fdf9a60065b 56 while (true) {
kadonotakashi 0:8fdf9a60065b 57 uint64_t diff = rtos::Kernel::get_ms_count() - start;
kadonotakashi 0:8fdf9a60065b 58 if (diff != 0) {
kadonotakashi 0:8fdf9a60065b 59 TEST_ASSERT_EQUAL_UINT64(1, diff);
kadonotakashi 0:8fdf9a60065b 60 break;
kadonotakashi 0:8fdf9a60065b 61 }
kadonotakashi 0:8fdf9a60065b 62 }
kadonotakashi 0:8fdf9a60065b 63 }
kadonotakashi 0:8fdf9a60065b 64 }
kadonotakashi 0:8fdf9a60065b 65
kadonotakashi 0:8fdf9a60065b 66 /** Test if kernel ticker interval is 1ms
kadonotakashi 0:8fdf9a60065b 67
kadonotakashi 0:8fdf9a60065b 68 Given a RTOS kernel ticker
kadonotakashi 0:8fdf9a60065b 69 When perform subsequent calls of @a rtos::Kernel::get_ms_count
kadonotakashi 0:8fdf9a60065b 70 Then the ticker interval should be 1ms
kadonotakashi 0:8fdf9a60065b 71 */
kadonotakashi 0:8fdf9a60065b 72 void test_interval()
kadonotakashi 0:8fdf9a60065b 73 {
kadonotakashi 0:8fdf9a60065b 74 uint64_t start, stop;
kadonotakashi 0:8fdf9a60065b 75 Timer timer;
kadonotakashi 0:8fdf9a60065b 76
kadonotakashi 0:8fdf9a60065b 77 start = rtos::Kernel::get_ms_count();
kadonotakashi 0:8fdf9a60065b 78 // wait for tick
kadonotakashi 0:8fdf9a60065b 79 do {
kadonotakashi 0:8fdf9a60065b 80 stop = rtos::Kernel::get_ms_count();
kadonotakashi 0:8fdf9a60065b 81 } while ((stop - start) == 0);
kadonotakashi 0:8fdf9a60065b 82 timer.start();
kadonotakashi 0:8fdf9a60065b 83 start = stop;
kadonotakashi 0:8fdf9a60065b 84
kadonotakashi 0:8fdf9a60065b 85 // wait for NUM_WAIT_TICKS ticks
kadonotakashi 0:8fdf9a60065b 86 do {
kadonotakashi 0:8fdf9a60065b 87 stop = rtos::Kernel::get_ms_count();
kadonotakashi 0:8fdf9a60065b 88 } while ((stop - start) != NUM_WAIT_TICKS);
kadonotakashi 0:8fdf9a60065b 89 timer.stop();
kadonotakashi 0:8fdf9a60065b 90 TEST_ASSERT_EQUAL_UINT64(NUM_WAIT_TICKS, (stop - start));
kadonotakashi 0:8fdf9a60065b 91
kadonotakashi 0:8fdf9a60065b 92 #if defined(NO_SYSTICK) || defined(MBED_TICKLESS)
kadonotakashi 0:8fdf9a60065b 93 // On targets with NO_SYSTICK/MBED_TICKLESS enabled, systick is emulated by lp_ticker what makes it less accurate
kadonotakashi 0:8fdf9a60065b 94 // for more details https://os.mbed.com/docs/latest/reference/tickless.html
kadonotakashi 0:8fdf9a60065b 95 TEST_ASSERT_UINT64_WITHIN(BIG_DELTA, ONE_SECOND, timer.read_high_resolution_us());
kadonotakashi 0:8fdf9a60065b 96 #else
kadonotakashi 0:8fdf9a60065b 97 TEST_ASSERT_UINT64_WITHIN(SMALL_DELTA, ONE_SECOND, timer.read_high_resolution_us());
kadonotakashi 0:8fdf9a60065b 98 #endif
kadonotakashi 0:8fdf9a60065b 99 }
kadonotakashi 0:8fdf9a60065b 100
kadonotakashi 0:8fdf9a60065b 101 // Test cases
kadonotakashi 0:8fdf9a60065b 102 Case cases[] = {
kadonotakashi 0:8fdf9a60065b 103 Case("Test kernel ticker frequency", test_frequency),
kadonotakashi 0:8fdf9a60065b 104 Case("Test if kernel ticker increments by one", test_increment),
kadonotakashi 0:8fdf9a60065b 105 Case("Test if kernel ticker interval is 1ms", test_interval)
kadonotakashi 0:8fdf9a60065b 106 };
kadonotakashi 0:8fdf9a60065b 107
kadonotakashi 0:8fdf9a60065b 108 utest::v1::status_t greentea_test_setup(const size_t number_of_cases)
kadonotakashi 0:8fdf9a60065b 109 {
kadonotakashi 0:8fdf9a60065b 110 GREENTEA_SETUP(10, "timing_drift_auto");
kadonotakashi 0:8fdf9a60065b 111 return utest::v1::greentea_test_setup_handler(number_of_cases);
kadonotakashi 0:8fdf9a60065b 112 }
kadonotakashi 0:8fdf9a60065b 113
kadonotakashi 0:8fdf9a60065b 114 utest::v1::Specification specification(greentea_test_setup, cases);
kadonotakashi 0:8fdf9a60065b 115
kadonotakashi 0:8fdf9a60065b 116 int main()
kadonotakashi 0:8fdf9a60065b 117 {
kadonotakashi 0:8fdf9a60065b 118 return !utest::v1::Harness::run(specification);
kadonotakashi 0:8fdf9a60065b 119 }