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TESTS/mbed_drivers/wait_us/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 /*
elessair 0:f269e3021894 2 * Copyright (c) 2013-2016, ARM Limited, All Rights Reserved
elessair 0:f269e3021894 3 * SPDX-License-Identifier: Apache-2.0
elessair 0:f269e3021894 4 *
elessair 0:f269e3021894 5 * Licensed under the Apache License, Version 2.0 (the "License"); you may
elessair 0:f269e3021894 6 * not use this file except in compliance with the License.
elessair 0:f269e3021894 7 * You may obtain a copy of the License at
elessair 0:f269e3021894 8 *
elessair 0:f269e3021894 9 * http://www.apache.org/licenses/LICENSE-2.0
elessair 0:f269e3021894 10 *
elessair 0:f269e3021894 11 * Unless required by applicable law or agreed to in writing, software
elessair 0:f269e3021894 12 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
elessair 0:f269e3021894 13 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
elessair 0:f269e3021894 14 * See the License for the specific language governing permissions and
elessair 0:f269e3021894 15 * limitations under the License.
elessair 0:f269e3021894 16 */
elessair 0:f269e3021894 17 #include "mbed.h"
elessair 0:f269e3021894 18 #include "greentea-client/test_env.h"
elessair 0:f269e3021894 19 #include "utest/utest.h"
elessair 0:f269e3021894 20
elessair 0:f269e3021894 21 /**
elessair 0:f269e3021894 22 NOTE: This test will have a bit of inherent drift due to it being
elessair 0:f269e3021894 23 single-threaded, so having a drift that is non-zero should be ok. However,
elessair 0:f269e3021894 24 it should still be well under the limit.
elessair 0:f269e3021894 25 **/
elessair 0:f269e3021894 26
elessair 0:f269e3021894 27
elessair 0:f269e3021894 28 using namespace utest::v1;
elessair 0:f269e3021894 29
elessair 0:f269e3021894 30 DigitalOut led(LED1);
elessair 0:f269e3021894 31 volatile bool print_tick = false;
elessair 0:f269e3021894 32 const int ONE_SECOND_US = 1000000;
elessair 0:f269e3021894 33 const int total_ticks = 10;
elessair 0:f269e3021894 34
elessair 0:f269e3021894 35 void test_case_ticker() {
elessair 0:f269e3021894 36 for (int i = 0; i <= total_ticks; i++) {
elessair 0:f269e3021894 37 wait_us(ONE_SECOND_US);
elessair 0:f269e3021894 38 greentea_send_kv("tick", i);
elessair 0:f269e3021894 39 }
elessair 0:f269e3021894 40 }
elessair 0:f269e3021894 41
elessair 0:f269e3021894 42 // Test cases
elessair 0:f269e3021894 43 Case cases[] = {
elessair 0:f269e3021894 44 Case("Timers: wait_us", test_case_ticker),
elessair 0:f269e3021894 45 };
elessair 0:f269e3021894 46
elessair 0:f269e3021894 47 utest::v1::status_t greentea_test_setup(const size_t number_of_cases) {
elessair 0:f269e3021894 48 GREENTEA_SETUP(total_ticks + 5, "timing_drift_auto");
elessair 0:f269e3021894 49 return greentea_test_setup_handler(number_of_cases);
elessair 0:f269e3021894 50 }
elessair 0:f269e3021894 51
elessair 0:f269e3021894 52 Specification specification(greentea_test_setup, cases, greentea_test_teardown_handler);
elessair 0:f269e3021894 53
elessair 0:f269e3021894 54 int main() {
elessair 0:f269e3021894 55 Harness::run(specification);
elessair 0:f269e3021894 56 }