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_F103RB/sleep.c@84:f54042cbc282, 2014-02-03 (annotated)

Committer:
mbed_official
Date:
Mon Feb 03 09:30:05 2014 +0000
Revision:
84:f54042cbc282
Parent:
70:c1fbde68b492
Child:
139:e3413eddde57
Synchronized with git revision bbbd8699601c42149ccf0c37bc42bb6856ccc4c6



Full URL: https://github.com/mbedmicro/mbed/commit/bbbd8699601c42149ccf0c37bc42bb6856ccc4c6/



[NUCLEO_L152RE/F030_R8] SPI, I2C, Ticker, PWM updates

Who changed what in which revision?

UserRevisionLine numberNew contents of line
mbed_official 60:142c6c6f5949 1 /* mbed Microcontroller Library
mbed_official 70:c1fbde68b492 2 *******************************************************************************
mbed_official 70:c1fbde68b492 3 * Copyright (c) 2014, STMicroelectronics
mbed_official 70:c1fbde68b492 4 * All rights reserved.
mbed_official 60:142c6c6f5949 5 *
mbed_official 70:c1fbde68b492 6 * Redistribution and use in source and binary forms, with or without
mbed_official 70:c1fbde68b492 7 * modification, are permitted provided that the following conditions are met:
mbed_official 60:142c6c6f5949 8 *
mbed_official 70:c1fbde68b492 9 * 1. Redistributions of source code must retain the above copyright notice,
mbed_official 70:c1fbde68b492 10 * this list of conditions and the following disclaimer.
mbed_official 70:c1fbde68b492 11 * 2. Redistributions in binary form must reproduce the above copyright notice,
mbed_official 70:c1fbde68b492 12 * this list of conditions and the following disclaimer in the documentation
mbed_official 70:c1fbde68b492 13 * and/or other materials provided with the distribution.
mbed_official 70:c1fbde68b492 14 * 3. Neither the name of STMicroelectronics nor the names of its contributors
mbed_official 70:c1fbde68b492 15 * may be used to endorse or promote products derived from this software
mbed_official 70:c1fbde68b492 16 * without specific prior written permission.
mbed_official 60:142c6c6f5949 17 *
mbed_official 70:c1fbde68b492 18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
mbed_official 70:c1fbde68b492 19 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
mbed_official 70:c1fbde68b492 20 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
mbed_official 70:c1fbde68b492 21 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
mbed_official 70:c1fbde68b492 22 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
mbed_official 70:c1fbde68b492 23 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
mbed_official 70:c1fbde68b492 24 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
mbed_official 70:c1fbde68b492 25 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
mbed_official 70:c1fbde68b492 26 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
mbed_official 70:c1fbde68b492 27 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
mbed_official 70:c1fbde68b492 28 *******************************************************************************
mbed_official 60:142c6c6f5949 29 */
mbed_official 60:142c6c6f5949 30 #include "sleep_api.h"
mbed_official 60:142c6c6f5949 31 #include "cmsis.h"
mbed_official 60:142c6c6f5949 32
mbed_official 60:142c6c6f5949 33 void sleep(void)
mbed_official 60:142c6c6f5949 34 {
mbed_official 84:f54042cbc282 35 // Disable us_ticker update interrupt
mbed_official 84:f54042cbc282 36 TIM_ITConfig(TIM1, TIM_IT_Update, DISABLE);
mbed_official 84:f54042cbc282 37
mbed_official 60:142c6c6f5949 38 SCB->SCR = 0; // Normal sleep mode for ARM core
mbed_official 60:142c6c6f5949 39 __WFI();
mbed_official 84:f54042cbc282 40
mbed_official 84:f54042cbc282 41 // Re-enable us_ticker update interrupt
mbed_official 84:f54042cbc282 42 TIM_ITConfig(TIM1, TIM_IT_Update, ENABLE);
mbed_official 60:142c6c6f5949 43 }
mbed_official 60:142c6c6f5949 44
mbed_official 60:142c6c6f5949 45 void deepsleep(void)
mbed_official 84:f54042cbc282 46 {
mbed_official 84:f54042cbc282 47 // Disable us_ticker update interrupt
mbed_official 84:f54042cbc282 48 TIM_ITConfig(TIM1, TIM_IT_Update, DISABLE);
mbed_official 84:f54042cbc282 49
mbed_official 60:142c6c6f5949 50 // Enable PWR clock
mbed_official 60:142c6c6f5949 51 RCC_APB1PeriphClockCmd(RCC_APB1Periph_PWR, ENABLE);
mbed_official 60:142c6c6f5949 52
mbed_official 60:142c6c6f5949 53 // Request to enter STOP mode with regulator in low power mode
mbed_official 84:f54042cbc282 54 PWR_EnterSTOPMode(PWR_Regulator_LowPower, PWR_STOPEntry_WFI);
mbed_official 84:f54042cbc282 55
mbed_official 84:f54042cbc282 56 // Re-enable us_ticker update interrupt
mbed_official 84:f54042cbc282 57 TIM_ITConfig(TIM1, TIM_IT_Update, ENABLE);
mbed_official 60:142c6c6f5949 58 }