mbed library sources
Fork of mbed-src by
targets/hal/TARGET_STM/TARGET_DISCO_F100RB/sleep.c@445:9a3ffe6cfa19, 2015-01-14 (annotated)
- Committer:
- moirans2
- Date:
- Wed Jan 14 20:53:08 2015 +0000
- Revision:
- 445:9a3ffe6cfa19
- Parent:
- 126:549ba18ddd81
internal clock stm32L051
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
mbed_official | 126:549ba18ddd81 | 1 | /* mbed Microcontroller Library |
mbed_official | 126:549ba18ddd81 | 2 | ******************************************************************************* |
mbed_official | 126:549ba18ddd81 | 3 | * Copyright (c) 2014, STMicroelectronics |
mbed_official | 126:549ba18ddd81 | 4 | * All rights reserved. |
mbed_official | 126:549ba18ddd81 | 5 | * |
mbed_official | 126:549ba18ddd81 | 6 | * Redistribution and use in source and binary forms, with or without |
mbed_official | 126:549ba18ddd81 | 7 | * modification, are permitted provided that the following conditions are met: |
mbed_official | 126:549ba18ddd81 | 8 | * |
mbed_official | 126:549ba18ddd81 | 9 | * 1. Redistributions of source code must retain the above copyright notice, |
mbed_official | 126:549ba18ddd81 | 10 | * this list of conditions and the following disclaimer. |
mbed_official | 126:549ba18ddd81 | 11 | * 2. Redistributions in binary form must reproduce the above copyright notice, |
mbed_official | 126:549ba18ddd81 | 12 | * this list of conditions and the following disclaimer in the documentation |
mbed_official | 126:549ba18ddd81 | 13 | * and/or other materials provided with the distribution. |
mbed_official | 126:549ba18ddd81 | 14 | * 3. Neither the name of STMicroelectronics nor the names of its contributors |
mbed_official | 126:549ba18ddd81 | 15 | * may be used to endorse or promote products derived from this software |
mbed_official | 126:549ba18ddd81 | 16 | * without specific prior written permission. |
mbed_official | 126:549ba18ddd81 | 17 | * |
mbed_official | 126:549ba18ddd81 | 18 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" |
mbed_official | 126:549ba18ddd81 | 19 | * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
mbed_official | 126:549ba18ddd81 | 20 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
mbed_official | 126:549ba18ddd81 | 21 | * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE |
mbed_official | 126:549ba18ddd81 | 22 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
mbed_official | 126:549ba18ddd81 | 23 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR |
mbed_official | 126:549ba18ddd81 | 24 | * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER |
mbed_official | 126:549ba18ddd81 | 25 | * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, |
mbed_official | 126:549ba18ddd81 | 26 | * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
mbed_official | 126:549ba18ddd81 | 27 | * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
mbed_official | 126:549ba18ddd81 | 28 | ******************************************************************************* |
mbed_official | 126:549ba18ddd81 | 29 | */ |
mbed_official | 126:549ba18ddd81 | 30 | #include "sleep_api.h" |
mbed_official | 126:549ba18ddd81 | 31 | #include "cmsis.h" |
mbed_official | 126:549ba18ddd81 | 32 | |
mbed_official | 126:549ba18ddd81 | 33 | void sleep(void) |
mbed_official | 126:549ba18ddd81 | 34 | { |
mbed_official | 126:549ba18ddd81 | 35 | // Disable us_ticker update interrupt |
mbed_official | 126:549ba18ddd81 | 36 | TIM_ITConfig(TIM1, TIM_IT_Update, DISABLE); |
mbed_official | 126:549ba18ddd81 | 37 | |
mbed_official | 126:549ba18ddd81 | 38 | SCB->SCR = 0; // Normal sleep mode for ARM core |
mbed_official | 126:549ba18ddd81 | 39 | __WFI(); |
mbed_official | 126:549ba18ddd81 | 40 | |
mbed_official | 126:549ba18ddd81 | 41 | // Re-enable us_ticker update interrupt |
mbed_official | 126:549ba18ddd81 | 42 | TIM_ITConfig(TIM1, TIM_IT_Update, ENABLE); |
mbed_official | 126:549ba18ddd81 | 43 | } |
mbed_official | 126:549ba18ddd81 | 44 | |
mbed_official | 126:549ba18ddd81 | 45 | void deepsleep(void) |
mbed_official | 126:549ba18ddd81 | 46 | { |
mbed_official | 126:549ba18ddd81 | 47 | // Disable us_ticker update interrupt |
mbed_official | 126:549ba18ddd81 | 48 | TIM_ITConfig(TIM1, TIM_IT_Update, DISABLE); |
mbed_official | 126:549ba18ddd81 | 49 | |
mbed_official | 126:549ba18ddd81 | 50 | // Enable PWR clock |
mbed_official | 126:549ba18ddd81 | 51 | RCC_APB1PeriphClockCmd(RCC_APB1Periph_PWR, ENABLE); |
mbed_official | 126:549ba18ddd81 | 52 | |
mbed_official | 126:549ba18ddd81 | 53 | // Request to enter STOP mode with regulator in low power mode |
mbed_official | 126:549ba18ddd81 | 54 | PWR_EnterSTOPMode(PWR_Regulator_LowPower, PWR_STOPEntry_WFI); |
mbed_official | 126:549ba18ddd81 | 55 | |
mbed_official | 126:549ba18ddd81 | 56 | // Re-enable us_ticker update interrupt |
mbed_official | 126:549ba18ddd81 | 57 | TIM_ITConfig(TIM1, TIM_IT_Update, ENABLE); |
mbed_official | 126:549ba18ddd81 | 58 | } |