Lee Kai Xuan / mbed-os

mbed-os

Fork of mbed-os by erkin yucel

platform/mbed_wait_api_no_rtos.c@0:f269e3021894, 2016-10-23 (annotated)

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

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elessair 0:f269e3021894 1 /* mbed Microcontroller Library
elessair 0:f269e3021894 2 * Copyright (c) 2006-2013 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 // This implementation of the wait functions will be compiled only
elessair 0:f269e3021894 18 // if the RTOS is not present.
elessair 0:f269e3021894 19 #ifndef MBED_CONF_RTOS_PRESENT
elessair 0:f269e3021894 20
elessair 0:f269e3021894 21 #include "platform/wait_api.h"
elessair 0:f269e3021894 22 #include "hal/us_ticker_api.h"
elessair 0:f269e3021894 23
elessair 0:f269e3021894 24 void wait(float s) {
elessair 0:f269e3021894 25 wait_us(s * 1000000.0f);
elessair 0:f269e3021894 26 }
elessair 0:f269e3021894 27
elessair 0:f269e3021894 28 void wait_ms(int ms) {
elessair 0:f269e3021894 29 wait_us(ms * 1000);
elessair 0:f269e3021894 30 }
elessair 0:f269e3021894 31
elessair 0:f269e3021894 32 void wait_us(int us) {
elessair 0:f269e3021894 33 uint32_t start = us_ticker_read();
elessair 0:f269e3021894 34 while ((us_ticker_read() - start) < (uint32_t)us);
elessair 0:f269e3021894 35 }
elessair 0:f269e3021894 36
elessair 0:f269e3021894 37 #endif // #ifndef MBED_CONF_RTOS_PRESENT
elessair 0:f269e3021894 38