mbed SDK library sources
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targets/hal/TARGET_STM/TARGET_NUCLEO_F030R8/sleep.c
- Committer:
- mbed_official
- Date:
- 2014-02-03
- Revision:
- 84:f54042cbc282
- Parent:
- 77:b5886236e6f0
File content as of revision 84:f54042cbc282:
/* 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" #include "cmsis.h" void sleep(void) { // Disable us_ticker update interrupt TIM_ITConfig(TIM1, TIM_IT_Update, DISABLE); SCB->SCR = 0; // Normal sleep mode for ARM core __WFI(); // Re-enable us_ticker update interrupt TIM_ITConfig(TIM1, TIM_IT_Update, ENABLE); } // MCU STOP mode // Wake-up with external interrupt void deepsleep(void) { // Enable PWR clock RCC_APB1PeriphClockCmd(RCC_APB1Periph_PWR, ENABLE); // Request to enter STOP mode with regulator in low power mode PWR_EnterSTOPMode(PWR_Regulator_LowPower, PWR_STOPEntry_WFI); }