main.cpp

00001 /*
00002  * Copyright (c) 2013-2016, ARM Limited, All Rights Reserved
00003  * SPDX-License-Identifier: Apache-2.0
00004  *
00005  * Licensed under the Apache License, Version 2.0 (the "License"); you may
00006  * not use this file except in compliance with the License.
00007  * You may obtain a copy of the License at
00008  *
00009  * http://www.apache.org/licenses/LICENSE-2.0
00010  *
00011  * Unless required by applicable law or agreed to in writing, software
00012  * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
00013  * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
00014  * See the License for the specific language governing permissions and
00015  * limitations under the License.
00016  */
00017 #include "mbed.h"
00018 #include "greentea-client/test_env.h"
00019 #include "utest/utest.h"
00020 
00021 /**
00022   NOTE: This test will have a bit of inherent drift due to it being
00023   single-threaded, so having a drift that is non-zero should be ok. However,
00024   it should still be well under the limit.
00025 **/
00026 
00027 
00028 using namespace utest::v1;
00029 
00030 DigitalOut led(LED1);
00031 volatile bool print_tick = false;
00032 const int ONE_SECOND_US = 1000000;
00033 const int total_ticks = 10;
00034 
00035 void test_case_ticker() {  
00036     for (int i = 0; i <= total_ticks; i++) {
00037         wait_us(ONE_SECOND_US);
00038         greentea_send_kv("tick", i);
00039     }
00040 }
00041 
00042 // Test cases
00043 Case cases[] = {
00044     Case("Timers: wait_us", test_case_ticker),
00045 };
00046 
00047 utest::v1::status_t  greentea_test_setup(const size_t number_of_cases) {
00048     GREENTEA_SETUP(total_ticks + 5, "timing_drift_auto");
00049     return greentea_test_setup_handler(number_of_cases);
00050 }
00051 
00052 Specification specification(greentea_test_setup, cases, greentea_test_teardown_handler);
00053 
00054 int main() {
00055     Harness::run(specification);
00056 }