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The official Mbed 2 C/C++ SDK provides the software platform and libraries to build your applications.

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mbed 2

This is the mbed 2 library. If you'd like to learn about Mbed OS please see the mbed-os docs.

platform/mbed_wait_api.h@169:a7c7b631e539, 2018-06-22 (annotated)

Committer:
Anna Bridge
Date:
Fri Jun 22 15:38:59 2018 +0100
Revision:
169:a7c7b631e539
Parent:
168:b9e159c1930a
Child:
170:e95d10626187
mbed library. Release version 162

Who changed what in which revision?

UserRevisionLine numberNew contents of line
AnnaBridge 156:ff21514d8981 1
AnnaBridge 156:ff21514d8981 2 /** \addtogroup platform */
AnnaBridge 156:ff21514d8981 3 /** @{*/
AnnaBridge 158:1c57384330a6 4 /**
AnnaBridge 158:1c57384330a6 5 * \defgroup platform_wait_api wait_api functions
AnnaBridge 158:1c57384330a6 6 * @{
AnnaBridge 158:1c57384330a6 7 */
AnnaBridge 158:1c57384330a6 8
AnnaBridge 156:ff21514d8981 9 /* mbed Microcontroller Library
AnnaBridge 156:ff21514d8981 10 * Copyright (c) 2006-2013 ARM Limited
AnnaBridge 156:ff21514d8981 11 *
AnnaBridge 156:ff21514d8981 12 * Licensed under the Apache License, Version 2.0 (the "License");
AnnaBridge 156:ff21514d8981 13 * you may not use this file except in compliance with the License.
AnnaBridge 156:ff21514d8981 14 * You may obtain a copy of the License at
AnnaBridge 156:ff21514d8981 15 *
AnnaBridge 156:ff21514d8981 16 * http://www.apache.org/licenses/LICENSE-2.0
AnnaBridge 156:ff21514d8981 17 *
AnnaBridge 156:ff21514d8981 18 * Unless required by applicable law or agreed to in writing, software
AnnaBridge 156:ff21514d8981 19 * distributed under the License is distributed on an "AS IS" BASIS,
AnnaBridge 156:ff21514d8981 20 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
AnnaBridge 156:ff21514d8981 21 * See the License for the specific language governing permissions and
AnnaBridge 156:ff21514d8981 22 * limitations under the License.
AnnaBridge 156:ff21514d8981 23 */
AnnaBridge 156:ff21514d8981 24 #ifndef MBED_WAIT_API_H
AnnaBridge 156:ff21514d8981 25 #define MBED_WAIT_API_H
AnnaBridge 156:ff21514d8981 26
AnnaBridge 156:ff21514d8981 27 #ifdef __cplusplus
AnnaBridge 156:ff21514d8981 28 extern "C" {
AnnaBridge 156:ff21514d8981 29 #endif
AnnaBridge 156:ff21514d8981 30
AnnaBridge 156:ff21514d8981 31 /** Generic wait functions.
AnnaBridge 156:ff21514d8981 32 *
AnnaBridge 156:ff21514d8981 33 * These provide simple NOP type wait capabilities.
AnnaBridge 156:ff21514d8981 34 *
AnnaBridge 156:ff21514d8981 35 * Example:
AnnaBridge 156:ff21514d8981 36 * @code
AnnaBridge 156:ff21514d8981 37 * #include "mbed.h"
AnnaBridge 156:ff21514d8981 38 *
AnnaBridge 156:ff21514d8981 39 * DigitalOut heartbeat(LED1);
AnnaBridge 156:ff21514d8981 40 *
AnnaBridge 156:ff21514d8981 41 * int main() {
AnnaBridge 156:ff21514d8981 42 * while (1) {
AnnaBridge 156:ff21514d8981 43 * heartbeat = 1;
AnnaBridge 156:ff21514d8981 44 * wait(0.5);
AnnaBridge 156:ff21514d8981 45 * heartbeat = 0;
AnnaBridge 156:ff21514d8981 46 * wait(0.5);
AnnaBridge 156:ff21514d8981 47 * }
AnnaBridge 156:ff21514d8981 48 * }
AnnaBridge 156:ff21514d8981 49 * @endcode
AnnaBridge 156:ff21514d8981 50 */
AnnaBridge 156:ff21514d8981 51
AnnaBridge 156:ff21514d8981 52 /** Waits for a number of seconds, with microsecond resolution (within
AnnaBridge 156:ff21514d8981 53 * the accuracy of single precision floating point).
AnnaBridge 156:ff21514d8981 54 *
AnnaBridge 156:ff21514d8981 55 * @param s number of seconds to wait
AnnaBridge 168:b9e159c1930a 56 *
AnnaBridge 168:b9e159c1930a 57 * @note
AnnaBridge 168:b9e159c1930a 58 * If the RTOS is present, this function always spins to get the exact number of microseconds,
AnnaBridge 168:b9e159c1930a 59 * which potentially affects power (such as preventing deep sleep) and multithread performance.
AnnaBridge 168:b9e159c1930a 60 * You can avoid it by using Thread::wait().
AnnaBridge 156:ff21514d8981 61 */
AnnaBridge 156:ff21514d8981 62 void wait(float s);
AnnaBridge 156:ff21514d8981 63
AnnaBridge 156:ff21514d8981 64 /** Waits a number of milliseconds.
AnnaBridge 156:ff21514d8981 65 *
AnnaBridge 156:ff21514d8981 66 * @param ms the whole number of milliseconds to wait
AnnaBridge 168:b9e159c1930a 67 *
AnnaBridge 168:b9e159c1930a 68 * @note
AnnaBridge 168:b9e159c1930a 69 * If the RTOS is present, this function always spins to get the exact number of microseconds,
AnnaBridge 168:b9e159c1930a 70 * which potentially affects power (such as preventing deep sleep) and multithread performance.
AnnaBridge 168:b9e159c1930a 71 * You can avoid it by using Thread::wait().
AnnaBridge 156:ff21514d8981 72 */
AnnaBridge 156:ff21514d8981 73 void wait_ms(int ms);
AnnaBridge 156:ff21514d8981 74
AnnaBridge 156:ff21514d8981 75 /** Waits a number of microseconds.
AnnaBridge 156:ff21514d8981 76 *
AnnaBridge 156:ff21514d8981 77 * @param us the whole number of microseconds to wait
AnnaBridge 168:b9e159c1930a 78 *
AnnaBridge 168:b9e159c1930a 79 * @note
AnnaBridge 168:b9e159c1930a 80 * If the RTOS is present, this function always spins to get the exact number of microseconds,
AnnaBridge 168:b9e159c1930a 81 * which potentially affects power (such as preventing deep sleep) and multithread performance.
AnnaBridge 156:ff21514d8981 82 */
AnnaBridge 156:ff21514d8981 83 void wait_us(int us);
AnnaBridge 156:ff21514d8981 84
AnnaBridge 156:ff21514d8981 85 #ifdef __cplusplus
AnnaBridge 156:ff21514d8981 86 }
AnnaBridge 156:ff21514d8981 87 #endif
AnnaBridge 156:ff21514d8981 88
AnnaBridge 156:ff21514d8981 89 #endif
AnnaBridge 156:ff21514d8981 90
AnnaBridge 156:ff21514d8981 91 /** @}*/
AnnaBridge 158:1c57384330a6 92 /** @}*/