Василий Басалаев / mbed-I2CIO

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Fork of mbed-STM32F030F4 by Nothing Special

targets/hal/TARGET_STM/TARGET_NUCLEO_F030R8/sleep.c@12:6f07dd7cbe47, 2018-02-01 (annotated)

Committer:
acosinwork
Date:
Thu Feb 01 10:37:10 2018 +0000
Revision:
12:6f07dd7cbe47
Parent:
9:64dafd1db1ec 
Change pin mapping and set internall oscillator as default. Fork to support Troyka GPIO expander (I2C I/O); http://amperka.ru/product/troyka-gpio-expander

Who changed what in which revision?

UserRevisionLine numberNew contents of line
mega64 0:38ccae254a29 1 /* mbed Microcontroller Library
mega64 0:38ccae254a29 2 *******************************************************************************
mega64 0:38ccae254a29 3 * Copyright (c) 2014, STMicroelectronics
mega64 0:38ccae254a29 4 * All rights reserved.
mega64 0:38ccae254a29 5 *
mega64 0:38ccae254a29 6 * Redistribution and use in source and binary forms, with or without
mega64 0:38ccae254a29 7 * modification, are permitted provided that the following conditions are met:
mega64 0:38ccae254a29 8 *
mega64 0:38ccae254a29 9 * 1. Redistributions of source code must retain the above copyright notice,
mega64 0:38ccae254a29 10 * this list of conditions and the following disclaimer.
mega64 0:38ccae254a29 11 * 2. Redistributions in binary form must reproduce the above copyright notice,
mega64 0:38ccae254a29 12 * this list of conditions and the following disclaimer in the documentation
mega64 0:38ccae254a29 13 * and/or other materials provided with the distribution.
mega64 0:38ccae254a29 14 * 3. Neither the name of STMicroelectronics nor the names of its contributors
mega64 0:38ccae254a29 15 * may be used to endorse or promote products derived from this software
mega64 0:38ccae254a29 16 * without specific prior written permission.
mega64 0:38ccae254a29 17 *
mega64 0:38ccae254a29 18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
mega64 0:38ccae254a29 19 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
mega64 0:38ccae254a29 20 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
mega64 0:38ccae254a29 21 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
mega64 0:38ccae254a29 22 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
mega64 0:38ccae254a29 23 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
mega64 0:38ccae254a29 24 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
mega64 0:38ccae254a29 25 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
mega64 0:38ccae254a29 26 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
mega64 0:38ccae254a29 27 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
mega64 0:38ccae254a29 28 *******************************************************************************
mega64 0:38ccae254a29 29 */
mega64 0:38ccae254a29 30 #include "sleep_api.h"
mega64 9:64dafd1db1ec 31 #include "us_ticker_api.h"
mega64 0:38ccae254a29 32
mega64 0:38ccae254a29 33 #if DEVICE_SLEEP
mega64 0:38ccae254a29 34
mega64 0:38ccae254a29 35 #include "cmsis.h"
mega64 0:38ccae254a29 36
mega64 9:64dafd1db1ec 37
mega64 9:64dafd1db1ec 38 void sleep(void)
mega64 9:64dafd1db1ec 39 {
mega64 9:64dafd1db1ec 40
mega64 9:64dafd1db1ec 41 TIM_HandleTypeDef TimTickerHandle;
mega64 9:64dafd1db1ec 42 TimTickerHandle.Instance = TIM1; //same timer as TIM_MST in us_ticker.c
mega64 9:64dafd1db1ec 43
mega64 9:64dafd1db1ec 44 // Disable us_ticker update interrupt
mega64 9:64dafd1db1ec 45 __HAL_TIM_DISABLE_IT(&TimTickerHandle, TIM_IT_UPDATE);
mega64 9:64dafd1db1ec 46
mega64 9:64dafd1db1ec 47 // Stop HAL systick
mega64 0:38ccae254a29 48 HAL_SuspendTick();
mega64 9:64dafd1db1ec 49
mega64 9:64dafd1db1ec 50
mega64 0:38ccae254a29 51 // Request to enter SLEEP mode
mega64 0:38ccae254a29 52 HAL_PWR_EnterSLEEPMode(PWR_MAINREGULATOR_ON, PWR_SLEEPENTRY_WFI);
mega64 9:64dafd1db1ec 53
mega64 9:64dafd1db1ec 54 // Re-enable us_ticker update interrupt
mega64 9:64dafd1db1ec 55 __HAL_TIM_ENABLE_IT(&TimTickerHandle, TIM_IT_UPDATE);
mega64 9:64dafd1db1ec 56
mega64 9:64dafd1db1ec 57 // Restart HAL systick
mega64 0:38ccae254a29 58 HAL_ResumeTick();
mega64 9:64dafd1db1ec 59
mega64 0:38ccae254a29 60 }
mega64 0:38ccae254a29 61
mega64 9:64dafd1db1ec 62 void deepsleep(void)
mega64 9:64dafd1db1ec 63 {
mega64 0:38ccae254a29 64 // Request to enter STOP mode with regulator in low power mode
mega64 0:38ccae254a29 65 HAL_PWR_EnterSTOPMode(PWR_LOWPOWERREGULATOR_ON, PWR_STOPENTRY_WFI);
mega64 0:38ccae254a29 66
mega64 9:64dafd1db1ec 67 HAL_InitTick(TICK_INT_PRIORITY);
mega64 9:64dafd1db1ec 68
mega64 0:38ccae254a29 69 // After wake-up from STOP reconfigure the PLL
mega64 0:38ccae254a29 70 SetSysClock();
mega64 9:64dafd1db1ec 71
mega64 9:64dafd1db1ec 72 HAL_InitTick(TICK_INT_PRIORITY);
mega64 0:38ccae254a29 73 }
mega64 0:38ccae254a29 74
mega64 0:38ccae254a29 75 #endif