mbed library sources
Dependents: Freedman_v2 Nucleo_i2c_OLED_BME280_copy
Fork of mbed-src by
Diff: targets/hal/TARGET_STM/TARGET_STM32L1/sleep.c
- Revision:
- 496:543871686697
- Parent:
- 354:e67efb2aab0e
- Child:
- 522:aee49fe30179
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/targets/hal/TARGET_STM/TARGET_STM32L1/sleep.c Tue Mar 24 09:00:08 2015 +0000 @@ -0,0 +1,67 @@ +/* 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) +{ + // Disable HAL tick interrupt + TimMasterHandle.Instance = TIM5; + __HAL_TIM_DISABLE_IT(&TimMasterHandle, TIM_IT_CC2); + + // Request to enter STOP mode with regulator in low power mode + HAL_PWR_EnterSTOPMode(PWR_LOWPOWERREGULATOR_ON, PWR_STOPENTRY_WFI); + + // After wake-up from STOP reconfigure the PLL + SetSysClock(); + + // Enable HAL tick interrupt + __HAL_TIM_ENABLE_IT(&TimMasterHandle, TIM_IT_CC2); +} + +#endif