From b0f0d2e9ca18d8604225bed3c984e4cf1b4c4b3c Mon Sep 17 00:00:00 2001 From: Dimitri Sokolyuk Date: Wed, 10 Feb 2016 20:31:09 +0100 Subject: Initial import --- .../STM32F10x_StdPeriph_Driver/src/stm32f10x_pwr.c | 316 +++++++++++++++++++++ 1 file changed, 316 insertions(+) create mode 100644 Libraries/STM32F10x_StdPeriph_Driver/src/stm32f10x_pwr.c (limited to 'Libraries/STM32F10x_StdPeriph_Driver/src/stm32f10x_pwr.c') diff --git a/Libraries/STM32F10x_StdPeriph_Driver/src/stm32f10x_pwr.c b/Libraries/STM32F10x_StdPeriph_Driver/src/stm32f10x_pwr.c new file mode 100644 index 0000000..a017ac6 --- /dev/null +++ b/Libraries/STM32F10x_StdPeriph_Driver/src/stm32f10x_pwr.c @@ -0,0 +1,316 @@ +/** + ****************************************************************************** + * @file stm32f10x_pwr.c + * @author MCD Application Team + * @version V3.3.0 + * @date 04/16/2010 + * @brief This file provides all the PWR firmware functions. + ****************************************************************************** + * @copy + * + * THE PRESENT FIRMWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS + * WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE + * TIME. AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY + * DIRECT, INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING + * FROM THE CONTENT OF SUCH FIRMWARE AND/OR THE USE MADE BY CUSTOMERS OF THE + * CODING INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS. + * + *

© COPYRIGHT 2010 STMicroelectronics

+ */ + +/* Includes ------------------------------------------------------------------*/ +#include "stm32f10x_pwr.h" +#include "stm32f10x_rcc.h" + +/** @addtogroup STM32F10x_StdPeriph_Driver + * @{ + */ + +/** @defgroup PWR + * @brief PWR driver modules + * @{ + */ + +/** @defgroup PWR_Private_TypesDefinitions + * @{ + */ + +/** + * @} + */ + +/** @defgroup PWR_Private_Defines + * @{ + */ + +/* --------- PWR registers bit address in the alias region ---------- */ +#define PWR_OFFSET (PWR_BASE - PERIPH_BASE) + +/* --- CR Register ---*/ + +/* Alias word address of DBP bit */ +#define CR_OFFSET (PWR_OFFSET + 0x00) +#define DBP_BitNumber 0x08 +#define CR_DBP_BB (PERIPH_BB_BASE + (CR_OFFSET * 32) + (DBP_BitNumber * 4)) + +/* Alias word address of PVDE bit */ +#define PVDE_BitNumber 0x04 +#define CR_PVDE_BB (PERIPH_BB_BASE + (CR_OFFSET * 32) + (PVDE_BitNumber * 4)) + +/* --- CSR Register ---*/ + +/* Alias word address of EWUP bit */ +#define CSR_OFFSET (PWR_OFFSET + 0x04) +#define EWUP_BitNumber 0x08 +#define CSR_EWUP_BB (PERIPH_BB_BASE + (CSR_OFFSET * 32) + (EWUP_BitNumber * 4)) + +/* ------------------ PWR registers bit mask ------------------------ */ + +/* CR register bit mask */ +#define CR_PDDS_Set ((uint32_t)0x00000002) +#define CR_DS_Mask ((uint32_t)0xFFFFFFFC) +#define CR_CWUF_Set ((uint32_t)0x00000004) +#define CR_PLS_Mask ((uint32_t)0xFFFFFF1F) + +/* --------- Cortex System Control register bit mask ---------------- */ + +/* Cortex System Control register address */ +#define SCB_SysCtrl ((uint32_t)0xE000ED10) + +/* SLEEPDEEP bit mask */ +#define SysCtrl_SLEEPDEEP_Set ((uint32_t)0x00000004) +#define SysCtrl_SLEEPDEEP_Reset ((uint32_t)0xFFFFFFFB) + +/** + * @} + */ + +/** @defgroup PWR_Private_Macros + * @{ + */ + +/** + * @} + */ + +/** @defgroup PWR_Private_Variables + * @{ + */ + +/** + * @} + */ + +/** @defgroup PWR_Private_FunctionPrototypes + * @{ + */ + +/** + * @} + */ + +/** @defgroup PWR_Private_Functions + * @{ + */ + +/** + * @brief Deinitializes the PWR peripheral registers to their default reset values. + * @param None + * @retval None + */ +void PWR_DeInit(void) +{ + RCC_APB1PeriphResetCmd(RCC_APB1Periph_PWR, ENABLE); + RCC_APB1PeriphResetCmd(RCC_APB1Periph_PWR, DISABLE); +} + +/** + * @brief Enables or disables access to the RTC and backup registers. + * @param NewState: new state of the access to the RTC and backup registers. + * This parameter can be: ENABLE or DISABLE. + * @retval None + */ +void PWR_BackupAccessCmd(FunctionalState NewState) +{ + /* Check the parameters */ + assert_param(IS_FUNCTIONAL_STATE(NewState)); + *(__IO uint32_t *) CR_DBP_BB = (uint32_t)NewState; +} + +/** + * @brief Enables or disables the Power Voltage Detector(PVD). + * @param NewState: new state of the PVD. + * This parameter can be: ENABLE or DISABLE. + * @retval None + */ +void PWR_PVDCmd(FunctionalState NewState) +{ + /* Check the parameters */ + assert_param(IS_FUNCTIONAL_STATE(NewState)); + *(__IO uint32_t *) CR_PVDE_BB = (uint32_t)NewState; +} + +/** + * @brief Configures the voltage threshold detected by the Power Voltage Detector(PVD). + * @param PWR_PVDLevel: specifies the PVD detection level + * This parameter can be one of the following values: + * @arg PWR_PVDLevel_2V2: PVD detection level set to 2.2V + * @arg PWR_PVDLevel_2V3: PVD detection level set to 2.3V + * @arg PWR_PVDLevel_2V4: PVD detection level set to 2.4V + * @arg PWR_PVDLevel_2V5: PVD detection level set to 2.5V + * @arg PWR_PVDLevel_2V6: PVD detection level set to 2.6V + * @arg PWR_PVDLevel_2V7: PVD detection level set to 2.7V + * @arg PWR_PVDLevel_2V8: PVD detection level set to 2.8V + * @arg PWR_PVDLevel_2V9: PVD detection level set to 2.9V + * @retval None + */ +void PWR_PVDLevelConfig(uint32_t PWR_PVDLevel) +{ + uint32_t tmpreg = 0; + /* Check the parameters */ + assert_param(IS_PWR_PVD_LEVEL(PWR_PVDLevel)); + tmpreg = PWR->CR; + /* Clear PLS[7:5] bits */ + tmpreg &= CR_PLS_Mask; + /* Set PLS[7:5] bits according to PWR_PVDLevel value */ + tmpreg |= PWR_PVDLevel; + /* Store the new value */ + PWR->CR = tmpreg; +} + +/** + * @brief Enables or disables the WakeUp Pin functionality. + * @param NewState: new state of the WakeUp Pin functionality. + * This parameter can be: ENABLE or DISABLE. + * @retval None + */ +void PWR_WakeUpPinCmd(FunctionalState NewState) +{ + /* Check the parameters */ + assert_param(IS_FUNCTIONAL_STATE(NewState)); + *(__IO uint32_t *) CSR_EWUP_BB = (uint32_t)NewState; +} + +/** + * @brief Enters STOP mode. + * @param PWR_Regulator: specifies the regulator state in STOP mode. + * This parameter can be one of the following values: + * @arg PWR_Regulator_ON: STOP mode with regulator ON + * @arg PWR_Regulator_LowPower: STOP mode with regulator in low power mode + * @param PWR_STOPEntry: specifies if STOP mode in entered with WFI or WFE instruction. + * This parameter can be one of the following values: + * @arg PWR_STOPEntry_WFI: enter STOP mode with WFI instruction + * @arg PWR_STOPEntry_WFE: enter STOP mode with WFE instruction + * @retval None + */ +void PWR_EnterSTOPMode(uint32_t PWR_Regulator, uint8_t PWR_STOPEntry) +{ + uint32_t tmpreg = 0; + /* Check the parameters */ + assert_param(IS_PWR_REGULATOR(PWR_Regulator)); + assert_param(IS_PWR_STOP_ENTRY(PWR_STOPEntry)); + + /* Select the regulator state in STOP mode ---------------------------------*/ + tmpreg = PWR->CR; + /* Clear PDDS and LPDS bits */ + tmpreg &= CR_DS_Mask; + /* Set LPDS bit according to PWR_Regulator value */ + tmpreg |= PWR_Regulator; + /* Store the new value */ + PWR->CR = tmpreg; + /* Set SLEEPDEEP bit of Cortex System Control Register */ + *(__IO uint32_t *) SCB_SysCtrl |= SysCtrl_SLEEPDEEP_Set; + + /* Select STOP mode entry --------------------------------------------------*/ + if(PWR_STOPEntry == PWR_STOPEntry_WFI) + { + /* Request Wait For Interrupt */ + __WFI(); + } + else + { + /* Request Wait For Event */ + __WFE(); + } + + /* Reset SLEEPDEEP bit of Cortex System Control Register */ + *(__IO uint32_t *) SCB_SysCtrl &= SysCtrl_SLEEPDEEP_Reset; +} + +/** + * @brief Enters STANDBY mode. + * @param None + * @retval None + */ +void PWR_EnterSTANDBYMode(void) +{ + /* Clear Wake-up flag */ + PWR->CR |= CR_CWUF_Set; + /* Select STANDBY mode */ + PWR->CR |= CR_PDDS_Set; + /* Set SLEEPDEEP bit of Cortex System Control Register */ + *(__IO uint32_t *) SCB_SysCtrl |= SysCtrl_SLEEPDEEP_Set; +/* This option is used to ensure that store operations are completed */ +#if defined ( __CC_ARM ) + __force_stores(); +#endif + /* Request Wait For Interrupt */ + __WFI(); +} + +/** + * @brief Checks whether the specified PWR flag is set or not. + * @param PWR_FLAG: specifies the flag to check. + * This parameter can be one of the following values: + * @arg PWR_FLAG_WU: Wake Up flag + * @arg PWR_FLAG_SB: StandBy flag + * @arg PWR_FLAG_PVDO: PVD Output + * @retval The new state of PWR_FLAG (SET or RESET). + */ +FlagStatus PWR_GetFlagStatus(uint32_t PWR_FLAG) +{ + FlagStatus bitstatus = RESET; + /* Check the parameters */ + assert_param(IS_PWR_GET_FLAG(PWR_FLAG)); + + if ((PWR->CSR & PWR_FLAG) != (uint32_t)RESET) + { + bitstatus = SET; + } + else + { + bitstatus = RESET; + } + /* Return the flag status */ + return bitstatus; +} + +/** + * @brief Clears the PWR's pending flags. + * @param PWR_FLAG: specifies the flag to clear. + * This parameter can be one of the following values: + * @arg PWR_FLAG_WU: Wake Up flag + * @arg PWR_FLAG_SB: StandBy flag + * @retval None + */ +void PWR_ClearFlag(uint32_t PWR_FLAG) +{ + /* Check the parameters */ + assert_param(IS_PWR_CLEAR_FLAG(PWR_FLAG)); + + PWR->CR |= PWR_FLAG << 2; +} + +/** + * @} + */ + +/** + * @} + */ + +/** + * @} + */ + +/******************* (C) COPYRIGHT 2010 STMicroelectronics *****END OF FILE****/ -- cgit v1.2.3