tmk_core/tool/mbed/mbed-sdk/libraries/mbed/targets/hal/TARGET_NORDIC/TARGET_MCU_NRF51822/sleep.c

   1 /* mbed Microcontroller Library
   2  * Copyright (c) 2006-2013 ARM Limited
   3  *
   4  * Licensed under the Apache License, Version 2.0 (the "License");
   5  * you may not use this file except in compliance with the License.
   6  * You may obtain a copy of the License at
   7  *
   8  *     http://www.apache.org/licenses/LICENSE-2.0
   9  *
  10  * Unless required by applicable law or agreed to in writing, software
  11  * distributed under the License is distributed on an "AS IS" BASIS,
  12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  13  * See the License for the specific language governing permissions and
  14  * limitations under the License.
  15  */
  16 #include "sleep_api.h"
  17 #include "cmsis.h"
  18 #include "mbed_interface.h"
  19
  20 void sleep(void)
  21 {
  22     // ensure debug is disconnected if semihost is enabled....
  23     NRF_POWER->TASKS_LOWPWR = 1;
  24     // wait for interrupt
  25     __WFE();
  26 }
  27
  28 void deepsleep(void)
  29 {
  30     sleep();
  31     //   NRF_POWER->SYSTEMOFF=1;
  32 }