Daniel Sygut / Application

lol

Dependencies:   MMA8451Q

Fork of Application by Mateusz Kowalik

mbed-dev/targets/TARGET_STM/sleep.c@10:41552d038a69, 2017-01-10 (annotated)

Committer:
Zaitsev
Date:
Tue Jan 10 20:42:26 2017 +0000
Revision:
10:41552d038a69
USB Serial bi-directional bridge

Who changed what in which revision?

UserRevisionLine numberNew contents of line
Zaitsev 10:41552d038a69 1 /* mbed Microcontroller Library
Zaitsev 10:41552d038a69 2 *******************************************************************************
Zaitsev 10:41552d038a69 3 * Copyright (c) 2016, STMicroelectronics
Zaitsev 10:41552d038a69 4 * All rights reserved.
Zaitsev 10:41552d038a69 5 *
Zaitsev 10:41552d038a69 6 * Redistribution and use in source and binary forms, with or without
Zaitsev 10:41552d038a69 7 * modification, are permitted provided that the following conditions are met:
Zaitsev 10:41552d038a69 8 *
Zaitsev 10:41552d038a69 9 * 1. Redistributions of source code must retain the above copyright notice,
Zaitsev 10:41552d038a69 10 * this list of conditions and the following disclaimer.
Zaitsev 10:41552d038a69 11 * 2. Redistributions in binary form must reproduce the above copyright notice,
Zaitsev 10:41552d038a69 12 * this list of conditions and the following disclaimer in the documentation
Zaitsev 10:41552d038a69 13 * and/or other materials provided with the distribution.
Zaitsev 10:41552d038a69 14 * 3. Neither the name of STMicroelectronics nor the names of its contributors
Zaitsev 10:41552d038a69 15 * may be used to endorse or promote products derived from this software
Zaitsev 10:41552d038a69 16 * without specific prior written permission.
Zaitsev 10:41552d038a69 17 *
Zaitsev 10:41552d038a69 18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
Zaitsev 10:41552d038a69 19 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
Zaitsev 10:41552d038a69 20 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
Zaitsev 10:41552d038a69 21 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
Zaitsev 10:41552d038a69 22 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
Zaitsev 10:41552d038a69 23 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
Zaitsev 10:41552d038a69 24 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
Zaitsev 10:41552d038a69 25 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
Zaitsev 10:41552d038a69 26 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
Zaitsev 10:41552d038a69 27 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
Zaitsev 10:41552d038a69 28 *******************************************************************************
Zaitsev 10:41552d038a69 29 */
Zaitsev 10:41552d038a69 30 #include "sleep_api.h"
Zaitsev 10:41552d038a69 31 #include "rtc_api_hal.h"
Zaitsev 10:41552d038a69 32
Zaitsev 10:41552d038a69 33 #if DEVICE_SLEEP
Zaitsev 10:41552d038a69 34
Zaitsev 10:41552d038a69 35 #include "cmsis.h"
Zaitsev 10:41552d038a69 36
Zaitsev 10:41552d038a69 37
Zaitsev 10:41552d038a69 38 void sleep(void)
Zaitsev 10:41552d038a69 39 {
Zaitsev 10:41552d038a69 40 // Stop HAL systick
Zaitsev 10:41552d038a69 41 HAL_SuspendTick();
Zaitsev 10:41552d038a69 42 // Request to enter SLEEP mode
Zaitsev 10:41552d038a69 43 HAL_PWR_EnterSLEEPMode(PWR_MAINREGULATOR_ON, PWR_SLEEPENTRY_WFI);
Zaitsev 10:41552d038a69 44 // Restart HAL systick
Zaitsev 10:41552d038a69 45 HAL_ResumeTick();
Zaitsev 10:41552d038a69 46 }
Zaitsev 10:41552d038a69 47
Zaitsev 10:41552d038a69 48 void deepsleep(void)
Zaitsev 10:41552d038a69 49 {
Zaitsev 10:41552d038a69 50 // Stop HAL systick
Zaitsev 10:41552d038a69 51 HAL_SuspendTick();
Zaitsev 10:41552d038a69 52
Zaitsev 10:41552d038a69 53 // Request to enter STOP mode with regulator in low power mode
Zaitsev 10:41552d038a69 54 #if TARGET_STM32L4
Zaitsev 10:41552d038a69 55 HAL_PWREx_EnterSTOP2Mode(PWR_STOPENTRY_WFI);
Zaitsev 10:41552d038a69 56 #else /* TARGET_STM32L4 */
Zaitsev 10:41552d038a69 57 HAL_PWR_EnterSTOPMode(PWR_LOWPOWERREGULATOR_ON, PWR_STOPENTRY_WFI);
Zaitsev 10:41552d038a69 58 #endif /* TARGET_STM32L4 */
Zaitsev 10:41552d038a69 59
Zaitsev 10:41552d038a69 60 // Restart HAL systick
Zaitsev 10:41552d038a69 61 HAL_ResumeTick();
Zaitsev 10:41552d038a69 62
Zaitsev 10:41552d038a69 63 // After wake-up from STOP reconfigure the PLL
Zaitsev 10:41552d038a69 64 SetSysClock();
Zaitsev 10:41552d038a69 65
Zaitsev 10:41552d038a69 66 #if DEVICE_LOWPOWERTIMER
Zaitsev 10:41552d038a69 67 rtc_synchronize();
Zaitsev 10:41552d038a69 68 #endif
Zaitsev 10:41552d038a69 69 }
Zaitsev 10:41552d038a69 70
Zaitsev 10:41552d038a69 71 #endif