mbed library sources
Dependents: Freedman_v2 Nucleo_i2c_OLED_BME280_copy
Fork of mbed-src by
targets/hal/TARGET_STM/TARGET_STM32L1/sleep.c
- Committer:
- mbed_official
- Date:
- 2015-04-23
- Revision:
- 522:aee49fe30179
- Parent:
- 496:543871686697
File content as of revision 522:aee49fe30179:
/* mbed Microcontroller Library ******************************************************************************* * Copyright (c) 2014, STMicroelectronics * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions are met: * * 1. Redistributions of source code must retain the above copyright notice, * this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright notice, * this list of conditions and the following disclaimer in the documentation * and/or other materials provided with the distribution. * 3. Neither the name of STMicroelectronics nor the names of its contributors * may be used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. ******************************************************************************* */ #include "sleep_api.h" #if DEVICE_SLEEP #include "cmsis.h" static TIM_HandleTypeDef TimMasterHandle; void sleep(void) { // Disable HAL tick interrupt TimMasterHandle.Instance = TIM5; __HAL_TIM_DISABLE_IT(&TimMasterHandle, TIM_IT_CC2); // Request to enter SLEEP mode HAL_PWR_EnterSLEEPMode(PWR_MAINREGULATOR_ON, PWR_SLEEPENTRY_WFI); // Enable HAL tick interrupt __HAL_TIM_ENABLE_IT(&TimMasterHandle, TIM_IT_CC2); } void deepsleep(void) { #if defined(TARGET_MOTE_L152RC) int8_t STOPEntry = PWR_STOPENTRY_WFI; #endif // Disable HAL tick interrupt TimMasterHandle.Instance = TIM5; __HAL_TIM_DISABLE_IT(&TimMasterHandle, TIM_IT_CC2); #if defined(TARGET_MOTE_L152RC) /* Select the regulator state in Stop mode: Set PDDS and LPSDSR bit according to PWR_Regulator value */ MODIFY_REG(PWR->CR, (PWR_CR_PDDS | PWR_CR_LPSDSR), PWR_LOWPOWERREGULATOR_ON); /* Set SLEEPDEEP bit of Cortex System Control Register */ SET_BIT(SCB->SCR, ((uint32_t)SCB_SCR_SLEEPDEEP_Msk)); /* Select Stop mode entry --------------------------------------------------*/ if(STOPEntry == PWR_STOPENTRY_WFI) { /* Request Wait For Interrupt */ __WFI(); } else { /* Request Wait For Event */ __SEV(); __WFE(); __WFE(); } __NOP(); __NOP(); __NOP(); /* Reset SLEEPDEEP bit of Cortex System Control Register */ CLEAR_BIT(SCB->SCR, ((uint32_t)SCB_SCR_SLEEPDEEP_Msk)); #else // Request to enter STOP mode with regulator in low power mode HAL_PWR_EnterSTOPMode(PWR_LOWPOWERREGULATOR_ON, PWR_STOPENTRY_WFI); #endif // After wake-up from STOP reconfigure the PLL SetSysClock(); // Enable HAL tick interrupt __HAL_TIM_ENABLE_IT(&TimMasterHandle, TIM_IT_CC2); } #endif