erkin yucel / mbed-os

mbed os with nrf51 internal bandgap enabled to read battery level

Dependents:   BLE_file_test BLE_Blink ExternalEncoder

TESTS/mbed_hal/lp_ticker/main.cpp@0:f269e3021894, 2016-10-23 (annotated)

Committer:
elessair
Date:
Sun Oct 23 15:10:02 2016 +0000
Revision:
0:f269e3021894
Initial commit

Who changed what in which revision?

UserRevisionLine numberNew contents of line
elessair 0:f269e3021894 1 /* mbed Microcontroller Library
elessair 0:f269e3021894 2 * Copyright (c) 2016 ARM Limited
elessair 0:f269e3021894 3 *
elessair 0:f269e3021894 4 * Licensed under the Apache License, Version 2.0 (the "License");
elessair 0:f269e3021894 5 * you may not use this file except in compliance with the License.
elessair 0:f269e3021894 6 * You may obtain a copy of the License at
elessair 0:f269e3021894 7 *
elessair 0:f269e3021894 8 * http://www.apache.org/licenses/LICENSE-2.0
elessair 0:f269e3021894 9 *
elessair 0:f269e3021894 10 * Unless required by applicable law or agreed to in writing, software
elessair 0:f269e3021894 11 * distributed under the License is distributed on an "AS IS" BASIS,
elessair 0:f269e3021894 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
elessair 0:f269e3021894 13 * See the License for the specific language governing permissions and
elessair 0:f269e3021894 14 * limitations under the License.
elessair 0:f269e3021894 15 */
elessair 0:f269e3021894 16
elessair 0:f269e3021894 17 #if !DEVICE_LOWPOWERTIMER
elessair 0:f269e3021894 18 #error [NOT_SUPPORTED] Low power timer not supported for this target
elessair 0:f269e3021894 19 #endif
elessair 0:f269e3021894 20
elessair 0:f269e3021894 21 #include "utest/utest.h"
elessair 0:f269e3021894 22 #include "unity/unity.h"
elessair 0:f269e3021894 23 #include "greentea-client/test_env.h"
elessair 0:f269e3021894 24
elessair 0:f269e3021894 25 #include "mbed.h"
elessair 0:f269e3021894 26 #include "us_ticker_api.h"
elessair 0:f269e3021894 27 #include "lp_ticker_api.h"
elessair 0:f269e3021894 28
elessair 0:f269e3021894 29 using namespace utest::v1;
elessair 0:f269e3021894 30
elessair 0:f269e3021894 31 volatile static bool complete;
elessair 0:f269e3021894 32 static ticker_event_t delay_event;
elessair 0:f269e3021894 33 static const ticker_data_t *lp_ticker_data = get_lp_ticker_data();
elessair 0:f269e3021894 34
elessair 0:f269e3021894 35
elessair 0:f269e3021894 36 /* Timeouts are quite arbitrary due to large number of boards with varying level of accuracy */
elessair 0:f269e3021894 37 #define LONG_TIMEOUT (100000)
elessair 0:f269e3021894 38 #define SHORT_TIMEOUT (600)
elessair 0:f269e3021894 39
elessair 0:f269e3021894 40 void cb_done(uint32_t id) {
elessair 0:f269e3021894 41 complete = true;
elessair 0:f269e3021894 42 }
elessair 0:f269e3021894 43
elessair 0:f269e3021894 44 void lp_ticker_delay_us(uint32_t delay_us, uint32_t tolerance)
elessair 0:f269e3021894 45 {
elessair 0:f269e3021894 46 complete = false;
elessair 0:f269e3021894 47 uint32_t delay_ts;
elessair 0:f269e3021894 48
elessair 0:f269e3021894 49 ticker_set_handler(lp_ticker_data, cb_done);
elessair 0:f269e3021894 50 ticker_remove_event(lp_ticker_data, &delay_event);
elessair 0:f269e3021894 51 delay_ts = lp_ticker_read() + delay_us;
elessair 0:f269e3021894 52
elessair 0:f269e3021894 53 timestamp_t start = us_ticker_read();
elessair 0:f269e3021894 54 ticker_insert_event(lp_ticker_data, &delay_event, delay_ts, (uint32_t)&delay_event);
elessair 0:f269e3021894 55 while (!complete);
elessair 0:f269e3021894 56 timestamp_t end = us_ticker_read();
elessair 0:f269e3021894 57
elessair 0:f269e3021894 58 TEST_ASSERT_UINT32_WITHIN(tolerance, delay_us, end - start);
elessair 0:f269e3021894 59 TEST_ASSERT_TRUE(complete);
elessair 0:f269e3021894 60 }
elessair 0:f269e3021894 61
elessair 0:f269e3021894 62 #if DEVICE_SLEEP
elessair 0:f269e3021894 63 void lp_ticker_1s_deepsleep()
elessair 0:f269e3021894 64 {
elessair 0:f269e3021894 65 complete = false;
elessair 0:f269e3021894 66 uint32_t delay_ts;
elessair 0:f269e3021894 67
elessair 0:f269e3021894 68 /*
elessair 0:f269e3021894 69 * Since deepsleep() may shut down the UART peripheral, we wait for 10ms
elessair 0:f269e3021894 70 * to allow for hardware serial buffers to completely flush.
elessair 0:f269e3021894 71
elessair 0:f269e3021894 72 * This should be replaced with a better function that checks if the
elessair 0:f269e3021894 73 * hardware buffers are empty. However, such an API does not exist now,
elessair 0:f269e3021894 74 * so we'll use the wait_ms() function for now.
elessair 0:f269e3021894 75 */
elessair 0:f269e3021894 76 wait_ms(10);
elessair 0:f269e3021894 77
elessair 0:f269e3021894 78 ticker_set_handler(lp_ticker_data, cb_done);
elessair 0:f269e3021894 79 ticker_remove_event(lp_ticker_data, &delay_event);
elessair 0:f269e3021894 80 delay_ts = lp_ticker_read() + 1000000;
elessair 0:f269e3021894 81
elessair 0:f269e3021894 82 /*
elessair 0:f269e3021894 83 * We use here lp_ticker_read() instead of us_ticker_read() for start and
elessair 0:f269e3021894 84 * end because the microseconds timer might be disable during deepsleep.
elessair 0:f269e3021894 85 */
elessair 0:f269e3021894 86 timestamp_t start = lp_ticker_read();
elessair 0:f269e3021894 87 ticker_insert_event(lp_ticker_data, &delay_event, delay_ts, (uint32_t)&delay_event);
elessair 0:f269e3021894 88 deepsleep();
elessair 0:f269e3021894 89 while (!complete);
elessair 0:f269e3021894 90 timestamp_t end = lp_ticker_read();
elessair 0:f269e3021894 91
elessair 0:f269e3021894 92 TEST_ASSERT_UINT32_WITHIN(LONG_TIMEOUT, 1000000, end - start);
elessair 0:f269e3021894 93 TEST_ASSERT_TRUE(complete);
elessair 0:f269e3021894 94 }
elessair 0:f269e3021894 95
elessair 0:f269e3021894 96 void lp_ticker_1s_sleep()
elessair 0:f269e3021894 97 {
elessair 0:f269e3021894 98 complete = false;
elessair 0:f269e3021894 99 uint32_t delay_ts;
elessair 0:f269e3021894 100
elessair 0:f269e3021894 101 ticker_set_handler(lp_ticker_data, cb_done);
elessair 0:f269e3021894 102 ticker_remove_event(lp_ticker_data, &delay_event);
elessair 0:f269e3021894 103 delay_ts = lp_ticker_read() + 1000000;
elessair 0:f269e3021894 104
elessair 0:f269e3021894 105 timestamp_t start = us_ticker_read();
elessair 0:f269e3021894 106 ticker_insert_event(lp_ticker_data, &delay_event, delay_ts, (uint32_t)&delay_event);
elessair 0:f269e3021894 107 sleep();
elessair 0:f269e3021894 108 while (!complete);
elessair 0:f269e3021894 109 timestamp_t end = us_ticker_read();
elessair 0:f269e3021894 110
elessair 0:f269e3021894 111 TEST_ASSERT_UINT32_WITHIN(LONG_TIMEOUT, 1000000, end - start);
elessair 0:f269e3021894 112 TEST_ASSERT_TRUE(complete);
elessair 0:f269e3021894 113 }
elessair 0:f269e3021894 114 #endif /* DEVICE_SLEEP */
elessair 0:f269e3021894 115
elessair 0:f269e3021894 116 void lp_ticker_500us(void)
elessair 0:f269e3021894 117 {
elessair 0:f269e3021894 118 lp_ticker_delay_us(500, SHORT_TIMEOUT);
elessair 0:f269e3021894 119 }
elessair 0:f269e3021894 120
elessair 0:f269e3021894 121 void lp_ticker_1ms(void)
elessair 0:f269e3021894 122 {
elessair 0:f269e3021894 123 lp_ticker_delay_us(1000, SHORT_TIMEOUT);
elessair 0:f269e3021894 124 }
elessair 0:f269e3021894 125
elessair 0:f269e3021894 126 void lp_ticker_1s(void)
elessair 0:f269e3021894 127 {
elessair 0:f269e3021894 128 lp_ticker_delay_us(1000000, LONG_TIMEOUT);
elessair 0:f269e3021894 129 }
elessair 0:f269e3021894 130
elessair 0:f269e3021894 131 void lp_ticker_5s(void)
elessair 0:f269e3021894 132 {
elessair 0:f269e3021894 133 lp_ticker_delay_us(5000000, LONG_TIMEOUT);
elessair 0:f269e3021894 134 }
elessair 0:f269e3021894 135
elessair 0:f269e3021894 136 status_t greentea_failure_handler(const Case *const source, const failure_t reason) {
elessair 0:f269e3021894 137 greentea_case_failure_abort_handler(source, reason);
elessair 0:f269e3021894 138 return STATUS_CONTINUE;
elessair 0:f269e3021894 139 }
elessair 0:f269e3021894 140
elessair 0:f269e3021894 141 Case cases[] = {
elessair 0:f269e3021894 142 Case("500us lp_ticker", lp_ticker_500us, greentea_failure_handler),
elessair 0:f269e3021894 143 Case("1ms lp_ticker", lp_ticker_1ms, greentea_failure_handler),
elessair 0:f269e3021894 144 Case("1s lp_ticker", lp_ticker_1s, greentea_failure_handler),
elessair 0:f269e3021894 145 Case("5s lp_ticker", lp_ticker_5s, greentea_failure_handler),
elessair 0:f269e3021894 146 #if DEVICE_SLEEP
elessair 0:f269e3021894 147 Case("1s lp_ticker sleep", lp_ticker_1s_sleep, greentea_failure_handler),
elessair 0:f269e3021894 148 Case("1s lp_ticker deepsleep", lp_ticker_1s_deepsleep, greentea_failure_handler),
elessair 0:f269e3021894 149 #endif /* DEVICE_SLEEP */
elessair 0:f269e3021894 150 };
elessair 0:f269e3021894 151
elessair 0:f269e3021894 152 status_t greentea_test_setup(const size_t number_of_cases) {
elessair 0:f269e3021894 153 GREENTEA_SETUP(20, "default_auto");
elessair 0:f269e3021894 154 lp_ticker_data->interface->init();
elessair 0:f269e3021894 155 return greentea_test_setup_handler(number_of_cases);
elessair 0:f269e3021894 156 }
elessair 0:f269e3021894 157
elessair 0:f269e3021894 158 Specification specification(greentea_test_setup, cases, greentea_test_teardown_handler);
elessair 0:f269e3021894 159
elessair 0:f269e3021894 160 int main() {
elessair 0:f269e3021894 161 Harness::run(specification);
elessair 0:f269e3021894 162 }