Peter Drescher / mbed-F401

mbed library with additional peripherals for ST F401 board

Fork of mbed-src by mbed official

This mbed LIB has additional peripherals for ST F401 board

  • UART2 : PA_3 rx, PA_2 tx
  • UART3 : PC_7 rx, PC_6 tx
  • I2C2 : PB_3 SDA, PB_10 SCL
  • I2C3 : PB_4 SDA, PA_8 SCL

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 }