Milen Pavlov / XRange_mbed_src

Mbed SDK for XRange SX1272 LoRa module

Dependents:   XRangePingPong XRange-LoRaWAN-lmic-app lora-transceiver

SX1272 LoRa RF module

https://www.netblocks.eu/xrange-sx1272-lora-datasheet/

targets/hal/TARGET_STM/TARGET_NUCLEO_L152RE/sleep.c@339:ac6f3fd999f3, 2016-01-07 (annotated)

Committer:
netblocks
Date:
Thu Jan 07 13:01:25 2016 +0000
Revision:
339:ac6f3fd999f3
Parent:
337:a9270a3a1df6 
HSE_VALUE set for XTAL 16Mhz

Who changed what in which revision?

UserRevisionLine numberNew contents of line
dudmuck 336:1e18a06a987b 1 /* mbed Microcontroller Library
dudmuck 336:1e18a06a987b 2 *******************************************************************************
dudmuck 336:1e18a06a987b 3 * Copyright (c) 2014, STMicroelectronics
dudmuck 336:1e18a06a987b 4 * All rights reserved.
dudmuck 336:1e18a06a987b 5 *
dudmuck 336:1e18a06a987b 6 * Redistribution and use in source and binary forms, with or without
dudmuck 336:1e18a06a987b 7 * modification, are permitted provided that the following conditions are met:
dudmuck 336:1e18a06a987b 8 *
dudmuck 336:1e18a06a987b 9 * 1. Redistributions of source code must retain the above copyright notice,
dudmuck 336:1e18a06a987b 10 * this list of conditions and the following disclaimer.
dudmuck 336:1e18a06a987b 11 * 2. Redistributions in binary form must reproduce the above copyright notice,
dudmuck 336:1e18a06a987b 12 * this list of conditions and the following disclaimer in the documentation
dudmuck 336:1e18a06a987b 13 * and/or other materials provided with the distribution.
dudmuck 336:1e18a06a987b 14 * 3. Neither the name of STMicroelectronics nor the names of its contributors
dudmuck 336:1e18a06a987b 15 * may be used to endorse or promote products derived from this software
dudmuck 336:1e18a06a987b 16 * without specific prior written permission.
dudmuck 336:1e18a06a987b 17 *
dudmuck 336:1e18a06a987b 18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
dudmuck 336:1e18a06a987b 19 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
dudmuck 336:1e18a06a987b 20 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
dudmuck 336:1e18a06a987b 21 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
dudmuck 336:1e18a06a987b 22 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
dudmuck 336:1e18a06a987b 23 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
dudmuck 336:1e18a06a987b 24 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
dudmuck 336:1e18a06a987b 25 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
dudmuck 336:1e18a06a987b 26 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
dudmuck 336:1e18a06a987b 27 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
dudmuck 336:1e18a06a987b 28 *******************************************************************************
dudmuck 336:1e18a06a987b 29 */
dudmuck 336:1e18a06a987b 30 #include "sleep_api.h"
dudmuck 336:1e18a06a987b 31
dudmuck 336:1e18a06a987b 32 #if DEVICE_SLEEP
dudmuck 336:1e18a06a987b 33
dudmuck 336:1e18a06a987b 34 #include "cmsis.h"
dudmuck 336:1e18a06a987b 35
dudmuck 336:1e18a06a987b 36 static TIM_HandleTypeDef TimMasterHandle;
dudmuck 336:1e18a06a987b 37
dudmuck 336:1e18a06a987b 38 void sleep(void)
dudmuck 336:1e18a06a987b 39 {
dudmuck 336:1e18a06a987b 40 // Disable HAL tick interrupt
dudmuck 336:1e18a06a987b 41 TimMasterHandle.Instance = TIM5;
dudmuck 336:1e18a06a987b 42 __HAL_TIM_DISABLE_IT(&TimMasterHandle, TIM_IT_CC2);
dudmuck 336:1e18a06a987b 43
dudmuck 336:1e18a06a987b 44 // Request to enter SLEEP mode
dudmuck 336:1e18a06a987b 45 HAL_PWR_EnterSLEEPMode(PWR_MAINREGULATOR_ON, PWR_SLEEPENTRY_WFI);
dudmuck 336:1e18a06a987b 46
dudmuck 336:1e18a06a987b 47 // Enable HAL tick interrupt
dudmuck 336:1e18a06a987b 48 __HAL_TIM_ENABLE_IT(&TimMasterHandle, TIM_IT_CC2);
dudmuck 336:1e18a06a987b 49 }
dudmuck 336:1e18a06a987b 50
dudmuck 336:1e18a06a987b 51 void deepsleep(void)
dudmuck 336:1e18a06a987b 52 {
dudmuck 337:a9270a3a1df6 53 uint8_t STOPEntry = PWR_STOPENTRY_WFI; /* PWR_STOPENTRY_WFE */
dudmuck 337:a9270a3a1df6 54
dudmuck 336:1e18a06a987b 55 // Disable HAL tick interrupt
dudmuck 336:1e18a06a987b 56 TimMasterHandle.Instance = TIM5;
dudmuck 336:1e18a06a987b 57 __HAL_TIM_DISABLE_IT(&TimMasterHandle, TIM_IT_CC2);
dudmuck 336:1e18a06a987b 58
dudmuck 336:1e18a06a987b 59 // Request to enter STOP mode with regulator in low power mode
dudmuck 337:a9270a3a1df6 60 //HAL_PWR_EnterSTOPMode(PWR_LOWPOWERREGULATOR_ON, PWR_STOPENTRY_WFI);
dudmuck 337:a9270a3a1df6 61 /* Select the regulator state in Stop mode: Set PDDS and LPSDSR bit according to PWR_Regulator value */
dudmuck 337:a9270a3a1df6 62 MODIFY_REG(PWR->CR, (PWR_CR_PDDS | PWR_CR_LPSDSR), PWR_LOWPOWERREGULATOR_ON);
dudmuck 337:a9270a3a1df6 63
dudmuck 337:a9270a3a1df6 64 /* Set SLEEPDEEP bit of Cortex System Control Register */
dudmuck 337:a9270a3a1df6 65 SET_BIT(SCB->SCR, ((uint32_t)SCB_SCR_SLEEPDEEP_Msk));
dudmuck 337:a9270a3a1df6 66
dudmuck 337:a9270a3a1df6 67 /* Select Stop mode entry --------------------------------------------------*/
dudmuck 337:a9270a3a1df6 68 if(STOPEntry == PWR_STOPENTRY_WFI)
dudmuck 337:a9270a3a1df6 69 {
dudmuck 337:a9270a3a1df6 70 /* Request Wait For Interrupt */
dudmuck 337:a9270a3a1df6 71 __WFI();
dudmuck 337:a9270a3a1df6 72 }
dudmuck 337:a9270a3a1df6 73 else
dudmuck 337:a9270a3a1df6 74 {
dudmuck 337:a9270a3a1df6 75 /* Request Wait For Event */
dudmuck 337:a9270a3a1df6 76 __SEV();
dudmuck 337:a9270a3a1df6 77 __WFE();
dudmuck 337:a9270a3a1df6 78 __WFE();
dudmuck 337:a9270a3a1df6 79 }
dudmuck 337:a9270a3a1df6 80 __NOP();
dudmuck 337:a9270a3a1df6 81 __NOP();
dudmuck 337:a9270a3a1df6 82 __NOP();
dudmuck 337:a9270a3a1df6 83 /* Reset SLEEPDEEP bit of Cortex System Control Register */
dudmuck 337:a9270a3a1df6 84 CLEAR_BIT(SCB->SCR, ((uint32_t)SCB_SCR_SLEEPDEEP_Msk));
dudmuck 336:1e18a06a987b 85
dudmuck 336:1e18a06a987b 86 // After wake-up from STOP reconfigure the PLL
dudmuck 336:1e18a06a987b 87 SetSysClock();
dudmuck 336:1e18a06a987b 88
dudmuck 336:1e18a06a987b 89 // Enable HAL tick interrupt
dudmuck 336:1e18a06a987b 90 __HAL_TIM_ENABLE_IT(&TimMasterHandle, TIM_IT_CC2);
dudmuck 336:1e18a06a987b 91 }
dudmuck 336:1e18a06a987b 92
dudmuck 336:1e18a06a987b 93 #endif