gabriel della-monica / mbed-src

mbed library sources

Fork of mbed-src by mbed official

targets/hal/TARGET_STM/TARGET_DISCO_L053C8/sleep.c@439:c4382fcbbaed, 2014-12-15 (annotated)

Committer:
mbed_official
Date:
Mon Dec 15 09:30:07 2014 +0000
Revision:
439:c4382fcbbaed
Parent:
376:cb4d9db17537 
Synchronized with git revision 6172cbea1a558a9a2ebbd965e77f83a9ceeec670



Full URL: https://github.com/mbedmicro/mbed/commit/6172cbea1a558a9a2ebbd965e77f83a9ceeec670/



Targets: DISCO_L053C8 - update from nucleo latest changes

Who changed what in which revision?

UserRevisionLine numberNew contents of line
mbed_official 376:cb4d9db17537 1 /* mbed Microcontroller Library
mbed_official 376:cb4d9db17537 2 *******************************************************************************
mbed_official 376:cb4d9db17537 3 * Copyright (c) 2014, STMicroelectronics
mbed_official 376:cb4d9db17537 4 * All rights reserved.
mbed_official 376:cb4d9db17537 5 *
mbed_official 376:cb4d9db17537 6 * Redistribution and use in source and binary forms, with or without
mbed_official 376:cb4d9db17537 7 * modification, are permitted provided that the following conditions are met:
mbed_official 376:cb4d9db17537 8 *
mbed_official 376:cb4d9db17537 9 * 1. Redistributions of source code must retain the above copyright notice,
mbed_official 376:cb4d9db17537 10 * this list of conditions and the following disclaimer.
mbed_official 376:cb4d9db17537 11 * 2. Redistributions in binary form must reproduce the above copyright notice,
mbed_official 376:cb4d9db17537 12 * this list of conditions and the following disclaimer in the documentation
mbed_official 376:cb4d9db17537 13 * and/or other materials provided with the distribution.
mbed_official 376:cb4d9db17537 14 * 3. Neither the name of STMicroelectronics nor the names of its contributors
mbed_official 376:cb4d9db17537 15 * may be used to endorse or promote products derived from this software
mbed_official 376:cb4d9db17537 16 * without specific prior written permission.
mbed_official 376:cb4d9db17537 17 *
mbed_official 376:cb4d9db17537 18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
mbed_official 376:cb4d9db17537 19 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
mbed_official 376:cb4d9db17537 20 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
mbed_official 376:cb4d9db17537 21 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
mbed_official 376:cb4d9db17537 22 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
mbed_official 376:cb4d9db17537 23 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
mbed_official 376:cb4d9db17537 24 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
mbed_official 376:cb4d9db17537 25 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
mbed_official 376:cb4d9db17537 26 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
mbed_official 376:cb4d9db17537 27 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
mbed_official 376:cb4d9db17537 28 *******************************************************************************
mbed_official 376:cb4d9db17537 29 */
mbed_official 376:cb4d9db17537 30 #include "sleep_api.h"
mbed_official 376:cb4d9db17537 31
mbed_official 376:cb4d9db17537 32 #if DEVICE_SLEEP
mbed_official 376:cb4d9db17537 33
mbed_official 376:cb4d9db17537 34 #include "cmsis.h"
mbed_official 376:cb4d9db17537 35
mbed_official 376:cb4d9db17537 36 static TIM_HandleTypeDef TimMasterHandle;
mbed_official 376:cb4d9db17537 37
mbed_official 439:c4382fcbbaed 38 void sleep(void)
mbed_official 439:c4382fcbbaed 39 {
mbed_official 376:cb4d9db17537 40 TimMasterHandle.Instance = TIM21;
mbed_official 439:c4382fcbbaed 41
mbed_official 439:c4382fcbbaed 42 // Disable HAL tick interrupt
mbed_official 439:c4382fcbbaed 43 __HAL_TIM_DISABLE_IT(&TimMasterHandle, (TIM_IT_CC2 | TIM_IT_UPDATE));
mbed_official 376:cb4d9db17537 44
mbed_official 376:cb4d9db17537 45 // Request to enter SLEEP mode
mbed_official 376:cb4d9db17537 46 HAL_PWR_EnterSLEEPMode(PWR_MAINREGULATOR_ON, PWR_SLEEPENTRY_WFI);
mbed_official 376:cb4d9db17537 47
mbed_official 439:c4382fcbbaed 48 // Enable HAL tick interrupt
mbed_official 439:c4382fcbbaed 49 __HAL_TIM_ENABLE_IT(&TimMasterHandle, (TIM_IT_CC2 | TIM_IT_UPDATE));
mbed_official 376:cb4d9db17537 50 }
mbed_official 376:cb4d9db17537 51
mbed_official 439:c4382fcbbaed 52 void deepsleep(void)
mbed_official 439:c4382fcbbaed 53 {
mbed_official 376:cb4d9db17537 54 // Request to enter STOP mode with regulator in low power mode
mbed_official 376:cb4d9db17537 55 HAL_PWR_EnterSTOPMode(PWR_LOWPOWERREGULATOR_ON, PWR_STOPENTRY_WFI);
mbed_official 376:cb4d9db17537 56
mbed_official 376:cb4d9db17537 57 // After wake-up from STOP reconfigure the PLL
mbed_official 376:cb4d9db17537 58 SetSysClock();
mbed_official 376:cb4d9db17537 59 }
mbed_official 376:cb4d9db17537 60
mbed_official 376:cb4d9db17537 61 #endif