shao ziyang / mbed-src-kl05

mbed library sources

Dependents:   frdm_kl05z_gpio_test

Fork of mbed-src by mbed official

targets/hal/TARGET_STM/TARGET_NUCLEO_F401RE/sleep.c@238:bda0417c579a, 2014-06-26 (annotated)

Committer:
mbed_official
Date:
Thu Jun 26 09:00:08 2014 +0100
Revision:
238:bda0417c579a
Parent:
172:2f4f8c56b261 
Synchronized with git revision f2f5409d12179efcc2696d5ba1fa299f0f9771f9



Full URL: https://github.com/mbedmicro/mbed/commit/f2f5409d12179efcc2696d5ba1fa299f0f9771f9/



[NUCLEO_F401RE] Fix issue with sleep and ST HAL tick timer

Who changed what in which revision?

UserRevisionLine numberNew contents of line
mbed_official 87:085cde657901 1 /* mbed Microcontroller Library
mbed_official 87:085cde657901 2 *******************************************************************************
mbed_official 87:085cde657901 3 * Copyright (c) 2014, STMicroelectronics
mbed_official 87:085cde657901 4 * All rights reserved.
mbed_official 87:085cde657901 5 *
mbed_official 87:085cde657901 6 * Redistribution and use in source and binary forms, with or without
mbed_official 87:085cde657901 7 * modification, are permitted provided that the following conditions are met:
mbed_official 87:085cde657901 8 *
mbed_official 87:085cde657901 9 * 1. Redistributions of source code must retain the above copyright notice,
mbed_official 87:085cde657901 10 * this list of conditions and the following disclaimer.
mbed_official 87:085cde657901 11 * 2. Redistributions in binary form must reproduce the above copyright notice,
mbed_official 87:085cde657901 12 * this list of conditions and the following disclaimer in the documentation
mbed_official 87:085cde657901 13 * and/or other materials provided with the distribution.
mbed_official 87:085cde657901 14 * 3. Neither the name of STMicroelectronics nor the names of its contributors
mbed_official 87:085cde657901 15 * may be used to endorse or promote products derived from this software
mbed_official 87:085cde657901 16 * without specific prior written permission.
mbed_official 87:085cde657901 17 *
mbed_official 87:085cde657901 18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
mbed_official 87:085cde657901 19 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
mbed_official 87:085cde657901 20 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
mbed_official 87:085cde657901 21 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
mbed_official 87:085cde657901 22 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
mbed_official 87:085cde657901 23 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
mbed_official 87:085cde657901 24 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
mbed_official 87:085cde657901 25 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
mbed_official 87:085cde657901 26 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
mbed_official 87:085cde657901 27 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
mbed_official 87:085cde657901 28 *******************************************************************************
mbed_official 87:085cde657901 29 */
mbed_official 87:085cde657901 30 #include "sleep_api.h"
mbed_official 87:085cde657901 31
mbed_official 172:2f4f8c56b261 32 #if DEVICE_SLEEP
mbed_official 172:2f4f8c56b261 33
mbed_official 172:2f4f8c56b261 34 #include "cmsis.h"
mbed_official 125:23cc3068a9e4 35
mbed_official 87:085cde657901 36 static TIM_HandleTypeDef TimMasterHandle;
mbed_official 87:085cde657901 37
mbed_official 172:2f4f8c56b261 38 void sleep(void) {
mbed_official 238:bda0417c579a 39 TimMasterHandle.Instance = TIM5;
mbed_official 238:bda0417c579a 40
mbed_official 238:bda0417c579a 41 // Disable HAL tick interrupt
mbed_official 238:bda0417c579a 42 __HAL_TIM_DISABLE_IT(&TimMasterHandle, TIM_IT_CC2);
mbed_official 238:bda0417c579a 43
mbed_official 87:085cde657901 44 // Request to enter SLEEP mode
mbed_official 87:085cde657901 45 HAL_PWR_EnterSLEEPMode(PWR_MAINREGULATOR_ON, PWR_SLEEPENTRY_WFI);
mbed_official 238:bda0417c579a 46
mbed_official 238:bda0417c579a 47 // Enable HAL tick interrupt
mbed_official 238:bda0417c579a 48 __HAL_TIM_ENABLE_IT(&TimMasterHandle, TIM_IT_CC2);
mbed_official 87:085cde657901 49 }
mbed_official 87:085cde657901 50
mbed_official 172:2f4f8c56b261 51 void deepsleep(void) {
mbed_official 87:085cde657901 52 // Request to enter STOP mode with regulator in low power mode
mbed_official 87:085cde657901 53 HAL_PWR_EnterSTOPMode(PWR_LOWPOWERREGULATOR_ON, PWR_STOPENTRY_WFI);
mbed_official 172:2f4f8c56b261 54
mbed_official 125:23cc3068a9e4 55 // After wake-up from STOP reconfigure the PLL
mbed_official 172:2f4f8c56b261 56 SetSysClock();
mbed_official 87:085cde657901 57 }
mbed_official 172:2f4f8c56b261 58
mbed_official 172:2f4f8c56b261 59 #endif