Ermanno Brusadin / mbed

mbed library sources

Dependents:   FRDM-KL46Z_LCD_Test FRDM-KL46Z_LCD_Test FRDM-KL46Z_Plantilla FRDM-KL46Z_Plantilla ... more

targets/hal/TARGET_STM/TARGET_STM32F3XX/sleep.c@0:6bc4ac881c8e, 2016-07-28 (annotated)

Committer:
ebrus
Date:
Thu Jul 28 15:56:34 2016 +0000
Revision:
0:6bc4ac881c8e
1;

Who changed what in which revision?

UserRevisionLine numberNew contents of line
ebrus 0:6bc4ac881c8e 1 /* mbed Microcontroller Library
ebrus 0:6bc4ac881c8e 2 *******************************************************************************
ebrus 0:6bc4ac881c8e 3 * Copyright (c) 2014, STMicroelectronics
ebrus 0:6bc4ac881c8e 4 * All rights reserved.
ebrus 0:6bc4ac881c8e 5 *
ebrus 0:6bc4ac881c8e 6 * Redistribution and use in source and binary forms, with or without
ebrus 0:6bc4ac881c8e 7 * modification, are permitted provided that the following conditions are met:
ebrus 0:6bc4ac881c8e 8 *
ebrus 0:6bc4ac881c8e 9 * 1. Redistributions of source code must retain the above copyright notice,
ebrus 0:6bc4ac881c8e 10 * this list of conditions and the following disclaimer.
ebrus 0:6bc4ac881c8e 11 * 2. Redistributions in binary form must reproduce the above copyright notice,
ebrus 0:6bc4ac881c8e 12 * this list of conditions and the following disclaimer in the documentation
ebrus 0:6bc4ac881c8e 13 * and/or other materials provided with the distribution.
ebrus 0:6bc4ac881c8e 14 * 3. Neither the name of STMicroelectronics nor the names of its contributors
ebrus 0:6bc4ac881c8e 15 * may be used to endorse or promote products derived from this software
ebrus 0:6bc4ac881c8e 16 * without specific prior written permission.
ebrus 0:6bc4ac881c8e 17 *
ebrus 0:6bc4ac881c8e 18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
ebrus 0:6bc4ac881c8e 19 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
ebrus 0:6bc4ac881c8e 20 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
ebrus 0:6bc4ac881c8e 21 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
ebrus 0:6bc4ac881c8e 22 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
ebrus 0:6bc4ac881c8e 23 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
ebrus 0:6bc4ac881c8e 24 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
ebrus 0:6bc4ac881c8e 25 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
ebrus 0:6bc4ac881c8e 26 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
ebrus 0:6bc4ac881c8e 27 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
ebrus 0:6bc4ac881c8e 28 *******************************************************************************
ebrus 0:6bc4ac881c8e 29 */
ebrus 0:6bc4ac881c8e 30 #include "sleep_api.h"
ebrus 0:6bc4ac881c8e 31 #include "cmsis.h"
ebrus 0:6bc4ac881c8e 32
ebrus 0:6bc4ac881c8e 33 // This function is in the system_stm32f30x.c file
ebrus 0:6bc4ac881c8e 34 extern void SetSysClock(void);
ebrus 0:6bc4ac881c8e 35
ebrus 0:6bc4ac881c8e 36 // MCU SLEEP mode
ebrus 0:6bc4ac881c8e 37 void sleep(void) {
ebrus 0:6bc4ac881c8e 38 // Enable PWR clock
ebrus 0:6bc4ac881c8e 39 RCC_APB1PeriphClockCmd(RCC_APB1Periph_PWR, ENABLE);
ebrus 0:6bc4ac881c8e 40
ebrus 0:6bc4ac881c8e 41 // Request to enter SLEEP mode
ebrus 0:6bc4ac881c8e 42 PWR_EnterSleepMode(PWR_SLEEPEntry_WFI);
ebrus 0:6bc4ac881c8e 43 }
ebrus 0:6bc4ac881c8e 44
ebrus 0:6bc4ac881c8e 45 // MCU STOP mode
ebrus 0:6bc4ac881c8e 46 void deepsleep(void) {
ebrus 0:6bc4ac881c8e 47 // Enable PWR clock
ebrus 0:6bc4ac881c8e 48 RCC_APB1PeriphClockCmd(RCC_APB1Periph_PWR, ENABLE);
ebrus 0:6bc4ac881c8e 49
ebrus 0:6bc4ac881c8e 50 // Enter Stop Mode
ebrus 0:6bc4ac881c8e 51 PWR_EnterSTOPMode(PWR_Regulator_LowPower, PWR_STOPEntry_WFI);
ebrus 0:6bc4ac881c8e 52
ebrus 0:6bc4ac881c8e 53 // After wake-up from STOP reconfigure the PLL
ebrus 0:6bc4ac881c8e 54 SetSysClock();
ebrus 0:6bc4ac881c8e 55 }