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mbed library sources

Fork of mbed-src by mbed official

targets/hal/TARGET_STM/TARGET_STM32F7/sleep.c@636:b0d178e9fa10, 2016-07-07 (annotated)

Committer:
lzbpli
Date:
Thu Jul 07 06:48:59 2016 +0000
Revision:
636:b0d178e9fa10
Parent:
582:a89625bcd809 
l053

Who changed what in which revision?

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mbed_official 573:ad23fe03a082 1 /* mbed Microcontroller Library
mbed_official 573:ad23fe03a082 2 *******************************************************************************
mbed_official 573:ad23fe03a082 3 * Copyright (c) 2015, STMicroelectronics
mbed_official 573:ad23fe03a082 4 * All rights reserved.
mbed_official 573:ad23fe03a082 5 *
mbed_official 573:ad23fe03a082 6 * Redistribution and use in source and binary forms, with or without
mbed_official 573:ad23fe03a082 7 * modification, are permitted provided that the following conditions are met:
mbed_official 573:ad23fe03a082 8 *
mbed_official 573:ad23fe03a082 9 * 1. Redistributions of source code must retain the above copyright notice,
mbed_official 573:ad23fe03a082 10 * this list of conditions and the following disclaimer.
mbed_official 573:ad23fe03a082 11 * 2. Redistributions in binary form must reproduce the above copyright notice,
mbed_official 573:ad23fe03a082 12 * this list of conditions and the following disclaimer in the documentation
mbed_official 573:ad23fe03a082 13 * and/or other materials provided with the distribution.
mbed_official 573:ad23fe03a082 14 * 3. Neither the name of STMicroelectronics nor the names of its contributors
mbed_official 573:ad23fe03a082 15 * may be used to endorse or promote products derived from this software
mbed_official 573:ad23fe03a082 16 * without specific prior written permission.
mbed_official 573:ad23fe03a082 17 *
mbed_official 573:ad23fe03a082 18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
mbed_official 573:ad23fe03a082 19 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
mbed_official 573:ad23fe03a082 20 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
mbed_official 573:ad23fe03a082 21 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
mbed_official 573:ad23fe03a082 22 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
mbed_official 573:ad23fe03a082 23 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
mbed_official 573:ad23fe03a082 24 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
mbed_official 573:ad23fe03a082 25 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
mbed_official 573:ad23fe03a082 26 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
mbed_official 573:ad23fe03a082 27 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
mbed_official 573:ad23fe03a082 28 *******************************************************************************
mbed_official 573:ad23fe03a082 29 */
mbed_official 573:ad23fe03a082 30 #include "sleep_api.h"
mbed_official 573:ad23fe03a082 31
mbed_official 573:ad23fe03a082 32 #if DEVICE_SLEEP
mbed_official 573:ad23fe03a082 33
mbed_official 573:ad23fe03a082 34 #include "cmsis.h"
mbed_official 573:ad23fe03a082 35
mbed_official 573:ad23fe03a082 36 static TIM_HandleTypeDef TimMasterHandle;
mbed_official 573:ad23fe03a082 37
mbed_official 573:ad23fe03a082 38 void sleep(void)
mbed_official 573:ad23fe03a082 39 {
mbed_official 573:ad23fe03a082 40 TimMasterHandle.Instance = TIM5;
mbed_official 573:ad23fe03a082 41
mbed_official 573:ad23fe03a082 42 // Disable HAL tick interrupt
mbed_official 573:ad23fe03a082 43 __HAL_TIM_DISABLE_IT(&TimMasterHandle, TIM_IT_CC2);
mbed_official 573:ad23fe03a082 44
mbed_official 573:ad23fe03a082 45 // Request to enter SLEEP mode
mbed_official 573:ad23fe03a082 46 HAL_PWR_EnterSLEEPMode(PWR_MAINREGULATOR_ON, PWR_SLEEPENTRY_WFI);
mbed_official 573:ad23fe03a082 47
mbed_official 573:ad23fe03a082 48 // Enable HAL tick interrupt
mbed_official 573:ad23fe03a082 49 __HAL_TIM_ENABLE_IT(&TimMasterHandle, TIM_IT_CC2);
mbed_official 573:ad23fe03a082 50 }
mbed_official 573:ad23fe03a082 51
mbed_official 573:ad23fe03a082 52 void deepsleep(void)
mbed_official 573:ad23fe03a082 53 {
mbed_official 573:ad23fe03a082 54 // Request to enter STOP mode with regulator in low power mode
mbed_official 573:ad23fe03a082 55 HAL_PWR_EnterSTOPMode(PWR_LOWPOWERREGULATOR_ON, PWR_STOPENTRY_WFI);
mbed_official 573:ad23fe03a082 56
mbed_official 582:a89625bcd809 57 // After wake-up from STOP need to reconfigure the system clock
mbed_official 573:ad23fe03a082 58 SetSysClock();
mbed_official 573:ad23fe03a082 59 }
mbed_official 573:ad23fe03a082 60
mbed_official 573:ad23fe03a082 61 #endif