SDK Development / mbed-src

mbed SDK library sources

Fork of mbed-src by mbed official

Development branch of the mbed library sources. This library is kept in synch with the latest changes from the mbed SDK and it is not guaranteed to work.

If you are looking for a stable and tested release, please import one of the official mbed library releases:

Import librarymbed

The official Mbed 2 C/C++ SDK provides the software platform and libraries to build your applications.

Last commit 20 Feb 2019 by mbed official

targets/hal/TARGET_STM/TARGET_NUCLEO_F103RB/sleep.c@70:c1fbde68b492, 2014-01-07 (annotated)

Committer:
mbed_official
Date:
Tue Jan 07 11:00:05 2014 +0000
Revision:
70:c1fbde68b492
Parent:
60:142c6c6f5949
Child:
84:f54042cbc282
Synchronized with git revision 3f438a307904431f2782db3c8fa49946b9fc1d85



Full URL: https://github.com/mbedmicro/mbed/commit/3f438a307904431f2782db3c8fa49946b9fc1d85/



[NUCLEO_F103RB] license text changed + sleep hal updated

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 70:c1fbde68b492 33 // This function is only necessary if the HSE is used.
mbed_official 70:c1fbde68b492 34 /*
mbed_official 60:142c6c6f5949 35 static void SYSCLKConfig_STOP(void)
mbed_official 60:142c6c6f5949 36 {
mbed_official 60:142c6c6f5949 37 ErrorStatus HSEStartUpStatus;
mbed_official 60:142c6c6f5949 38
mbed_official 60:142c6c6f5949 39 RCC_HSEConfig(RCC_HSE_ON); // Enable HSE
mbed_official 60:142c6c6f5949 40
mbed_official 60:142c6c6f5949 41 HSEStartUpStatus = RCC_WaitForHSEStartUp(); // Wait till HSE is ready
mbed_official 60:142c6c6f5949 42
mbed_official 60:142c6c6f5949 43 if (HSEStartUpStatus == SUCCESS) {
mbed_official 60:142c6c6f5949 44 RCC_PLLCmd(ENABLE); // Enable PLL
mbed_official 60:142c6c6f5949 45 while(RCC_GetFlagStatus(RCC_FLAG_PLLRDY) == RESET) {} // Wait till PLL is ready
mbed_official 60:142c6c6f5949 46 RCC_SYSCLKConfig(RCC_SYSCLKSource_PLLCLK); // Select PLL as system clock source
mbed_official 60:142c6c6f5949 47 while(RCC_GetSYSCLKSource() != 0x08) {} // Wait till PLL is used as system clock source
mbed_official 60:142c6c6f5949 48 }
mbed_official 60:142c6c6f5949 49 }
mbed_official 70:c1fbde68b492 50 */
mbed_official 60:142c6c6f5949 51
mbed_official 60:142c6c6f5949 52 void sleep(void)
mbed_official 60:142c6c6f5949 53 {
mbed_official 60:142c6c6f5949 54 SCB->SCR = 0; // Normal sleep mode for ARM core
mbed_official 60:142c6c6f5949 55 __WFI();
mbed_official 60:142c6c6f5949 56 }
mbed_official 60:142c6c6f5949 57
mbed_official 60:142c6c6f5949 58 void deepsleep(void)
mbed_official 60:142c6c6f5949 59 {
mbed_official 60:142c6c6f5949 60 // Enable PWR clock
mbed_official 60:142c6c6f5949 61 RCC_APB1PeriphClockCmd(RCC_APB1Periph_PWR, ENABLE);
mbed_official 60:142c6c6f5949 62
mbed_official 60:142c6c6f5949 63 // Request to enter STOP mode with regulator in low power mode
mbed_official 60:142c6c6f5949 64 PWR_EnterSTOPMode(PWR_Regulator_LowPower, PWR_STOPEntry_WFI);
mbed_official 60:142c6c6f5949 65
mbed_official 60:142c6c6f5949 66 // At this stage the system has resumed from STOP mode.
mbed_official 60:142c6c6f5949 67 // Re-configure the system clock: enable HSE, PLL and select
mbed_official 60:142c6c6f5949 68 // PLL as system clock source (because HSE and PLL are disabled in STOP mode).
mbed_official 70:c1fbde68b492 69 //SYSCLKConfig_STOP();
mbed_official 60:142c6c6f5949 70 }