eunkyoung kim / mbed-src

mbed library sources modify the rtc/i2c

Dependents:   SSD1306_smart_watch

Fork of mbed-src by eunkyoung kim

targets/hal/TARGET_STM/TARGET_NZ32ST1L/sleep.c@545:5112d5ae6723, 2015-05-21 (annotated)

Committer:
mbed_official
Date:
Thu May 21 10:00:09 2015 +0100
Revision:
545:5112d5ae6723
Synchronized with git revision 1838c70a90ab783b1450eaf62cc645c43f463c3c



Full URL: https://github.com/mbedmicro/mbed/commit/1838c70a90ab783b1450eaf62cc645c43f463c3c/

Who changed what in which revision?

UserRevisionLine numberNew contents of line
mbed_official 545:5112d5ae6723 1 /* mbed Microcontroller Library
mbed_official 545:5112d5ae6723 2 *******************************************************************************
mbed_official 545:5112d5ae6723 3 * Copyright (c) 2015, STMicroelectronics
mbed_official 545:5112d5ae6723 4 * All rights reserved.
mbed_official 545:5112d5ae6723 5 *
mbed_official 545:5112d5ae6723 6 * Redistribution and use in source and binary forms, with or without
mbed_official 545:5112d5ae6723 7 * modification, are permitted provided that the following conditions are met:
mbed_official 545:5112d5ae6723 8 *
mbed_official 545:5112d5ae6723 9 * 1. Redistributions of source code must retain the above copyright notice,
mbed_official 545:5112d5ae6723 10 * this list of conditions and the following disclaimer.
mbed_official 545:5112d5ae6723 11 * 2. Redistributions in binary form must reproduce the above copyright notice,
mbed_official 545:5112d5ae6723 12 * this list of conditions and the following disclaimer in the documentation
mbed_official 545:5112d5ae6723 13 * and/or other materials provided with the distribution.
mbed_official 545:5112d5ae6723 14 * 3. Neither the name of STMicroelectronics nor the names of its contributors
mbed_official 545:5112d5ae6723 15 * may be used to endorse or promote products derived from this software
mbed_official 545:5112d5ae6723 16 * without specific prior written permission.
mbed_official 545:5112d5ae6723 17 *
mbed_official 545:5112d5ae6723 18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
mbed_official 545:5112d5ae6723 19 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
mbed_official 545:5112d5ae6723 20 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
mbed_official 545:5112d5ae6723 21 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
mbed_official 545:5112d5ae6723 22 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
mbed_official 545:5112d5ae6723 23 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
mbed_official 545:5112d5ae6723 24 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
mbed_official 545:5112d5ae6723 25 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
mbed_official 545:5112d5ae6723 26 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
mbed_official 545:5112d5ae6723 27 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
mbed_official 545:5112d5ae6723 28 *******************************************************************************
mbed_official 545:5112d5ae6723 29 */
mbed_official 545:5112d5ae6723 30 #include "sleep_api.h"
mbed_official 545:5112d5ae6723 31
mbed_official 545:5112d5ae6723 32 #if DEVICE_SLEEP
mbed_official 545:5112d5ae6723 33
mbed_official 545:5112d5ae6723 34 #include "cmsis.h"
mbed_official 545:5112d5ae6723 35
mbed_official 545:5112d5ae6723 36 static TIM_HandleTypeDef TimMasterHandle;
mbed_official 545:5112d5ae6723 37
mbed_official 545:5112d5ae6723 38 void sleep(void)
mbed_official 545:5112d5ae6723 39 {
mbed_official 545:5112d5ae6723 40 // Disable HAL tick interrupt
mbed_official 545:5112d5ae6723 41 TimMasterHandle.Instance = TIM5;
mbed_official 545:5112d5ae6723 42 __HAL_TIM_DISABLE_IT(&TimMasterHandle, TIM_IT_CC2);
mbed_official 545:5112d5ae6723 43
mbed_official 545:5112d5ae6723 44 // Request to enter SLEEP mode
mbed_official 545:5112d5ae6723 45 HAL_PWR_EnterSLEEPMode(PWR_MAINREGULATOR_ON, PWR_SLEEPENTRY_WFI);
mbed_official 545:5112d5ae6723 46
mbed_official 545:5112d5ae6723 47 // Enable HAL tick interrupt
mbed_official 545:5112d5ae6723 48 __HAL_TIM_ENABLE_IT(&TimMasterHandle, TIM_IT_CC2);
mbed_official 545:5112d5ae6723 49 }
mbed_official 545:5112d5ae6723 50
mbed_official 545:5112d5ae6723 51 void deepsleep(void)
mbed_official 545:5112d5ae6723 52 {
mbed_official 545:5112d5ae6723 53 // Disable HAL tick interrupt
mbed_official 545:5112d5ae6723 54 TimMasterHandle.Instance = TIM5;
mbed_official 545:5112d5ae6723 55 __HAL_TIM_DISABLE_IT(&TimMasterHandle, TIM_IT_CC2);
mbed_official 545:5112d5ae6723 56
mbed_official 545:5112d5ae6723 57 // Request to enter STOP mode with regulator in low power mode
mbed_official 545:5112d5ae6723 58 HAL_PWR_EnterSTOPMode(PWR_LOWPOWERREGULATOR_ON, PWR_STOPENTRY_WFI);
mbed_official 545:5112d5ae6723 59
mbed_official 545:5112d5ae6723 60 // After wake-up from STOP reconfigure the PLL
mbed_official 545:5112d5ae6723 61 SetSysClock();
mbed_official 545:5112d5ae6723 62
mbed_official 545:5112d5ae6723 63 // Enable HAL tick interrupt
mbed_official 545:5112d5ae6723 64 __HAL_TIM_ENABLE_IT(&TimMasterHandle, TIM_IT_CC2);
mbed_official 545:5112d5ae6723 65 }
mbed_official 545:5112d5ae6723 66
mbed_official 545:5112d5ae6723 67 #endif