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-/******************** (C) COPYRIGHT 2008 STMicroelectronics ********************
-* File Name : stm32f10x_pwr.c
-* Author : MCD Application Team
-* Version : V2.0.2
-* Date : 07/11/2008
-* Description : This file provides all the PWR firmware functions.
-********************************************************************************
-* 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.
-*******************************************************************************/
-
-/* Includes ------------------------------------------------------------------*/
-#include "stm32f10x_pwr.h"
-#include "stm32f10x_rcc.h"
-
-/* Private typedef -----------------------------------------------------------*/
-/* Private define ------------------------------------------------------------*/
-/* --------- 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 ((u32)0x00000002)
-#define CR_DS_Mask ((u32)0xFFFFFFFC)
-#define CR_CWUF_Set ((u32)0x00000004)
-#define CR_PLS_Mask ((u32)0xFFFFFF1F)
-
-/* --------- Cortex System Control register bit mask ---------------- */
-/* Cortex System Control register address */
-#define SCB_SysCtrl ((u32)0xE000ED10)
-/* SLEEPDEEP bit mask */
-#define SysCtrl_SLEEPDEEP_Set ((u32)0x00000004)
-
-/* Private macro -------------------------------------------------------------*/
-/* Private variables ---------------------------------------------------------*/
-/* Private function prototypes -----------------------------------------------*/
-/* Private functions ---------------------------------------------------------*/
-
-/*******************************************************************************
-* Function Name : PWR_DeInit
-* Description : Deinitializes the PWR peripheral registers to their default
-* reset values.
-* Input : None
-* Output : None
-* Return : None
-*******************************************************************************/
-void PWR_DeInit(void)
-{
- RCC_APB1PeriphResetCmd(RCC_APB1Periph_PWR, ENABLE);
- RCC_APB1PeriphResetCmd(RCC_APB1Periph_PWR, DISABLE);
-}
-
-/*******************************************************************************
-* Function Name : PWR_BackupAccessCmd
-* Description : Enables or disables access to the RTC and backup registers.
-* Input : - NewState: new state of the access to the RTC and backup
-* registers. This parameter can be: ENABLE or DISABLE.
-* Output : None
-* Return : None
-*******************************************************************************/
-void PWR_BackupAccessCmd(FunctionalState NewState)
-{
- /* Check the parameters */
- assert_param(IS_FUNCTIONAL_STATE(NewState));
-
- *(vu32 *) CR_DBP_BB = (u32)NewState;
-}
-
-/*******************************************************************************
-* Function Name : PWR_PVDCmd
-* Description : Enables or disables the Power Voltage Detector(PVD).
-* Input : - NewState: new state of the PVD.
-* This parameter can be: ENABLE or DISABLE.
-* Output : None
-* Return : None
-*******************************************************************************/
-void PWR_PVDCmd(FunctionalState NewState)
-{
- /* Check the parameters */
- assert_param(IS_FUNCTIONAL_STATE(NewState));
-
- *(vu32 *) CR_PVDE_BB = (u32)NewState;
-}
-
-/*******************************************************************************
-* Function Name : PWR_PVDLevelConfig
-* Description : Configures the voltage threshold detected by the Power Voltage
-* Detector(PVD).
-* Input : - PWR_PVDLevel: specifies the PVD detection level
-* This parameter can be one of the following values:
-* - PWR_PVDLevel_2V2: PVD detection level set to 2.2V
-* - PWR_PVDLevel_2V3: PVD detection level set to 2.3V
-* - PWR_PVDLevel_2V4: PVD detection level set to 2.4V
-* - PWR_PVDLevel_2V5: PVD detection level set to 2.5V
-* - PWR_PVDLevel_2V6: PVD detection level set to 2.6V
-* - PWR_PVDLevel_2V7: PVD detection level set to 2.7V
-* - PWR_PVDLevel_2V8: PVD detection level set to 2.8V
-* - PWR_PVDLevel_2V9: PVD detection level set to 2.9V
-* Output : None
-* Return : None
-*******************************************************************************/
-void PWR_PVDLevelConfig(u32 PWR_PVDLevel)
-{
- u32 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;
-}
-
-/*******************************************************************************
-* Function Name : PWR_WakeUpPinCmd
-* Description : Enables or disables the WakeUp Pin functionality.
-* Input : - NewState: new state of the WakeUp Pin functionality.
-* This parameter can be: ENABLE or DISABLE.
-* Output : None
-* Return : None
-*******************************************************************************/
-void PWR_WakeUpPinCmd(FunctionalState NewState)
-{
- /* Check the parameters */
- assert_param(IS_FUNCTIONAL_STATE(NewState));
-
- *(vu32 *) CSR_EWUP_BB = (u32)NewState;
-}
-
-/*******************************************************************************
-* Function Name : PWR_EnterSTOPMode
-* Description : Enters STOP mode.
-* Input : - PWR_Regulator: specifies the regulator state in STOP mode.
-* This parameter can be one of the following values:
-* - PWR_Regulator_ON: STOP mode with regulator ON
-* - PWR_Regulator_LowPower: STOP mode with
-* regulator in low power mode
-* - PWR_STOPEntry: specifies if STOP mode in entered with WFI or
-* WFE instruction.
-* This parameter can be one of the following values:
-* - PWR_STOPEntry_WFI: enter STOP mode with WFI instruction
-* - PWR_STOPEntry_WFE: enter STOP mode with WFE instruction
-* Output : None
-* Return : None
-*******************************************************************************/
-void PWR_EnterSTOPMode(u32 PWR_Regulator, u8 PWR_STOPEntry)
-{
- u32 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 */
- *(vu32 *) 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();
- }
-}
-
-/*******************************************************************************
-* Function Name : PWR_EnterSTANDBYMode
-* Description : Enters STANDBY mode.
-* Input : None
-* Output : None
-* Return : 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 */
- *(vu32 *) SCB_SysCtrl |= SysCtrl_SLEEPDEEP_Set;
-
- /* Request Wait For Interrupt */
- __WFI();
-}
-
-/*******************************************************************************
-* Function Name : PWR_GetFlagStatus
-* Description : Checks whether the specified PWR flag is set or not.
-* Input : - PWR_FLAG: specifies the flag to check.
-* This parameter can be one of the following values:
-* - PWR_FLAG_WU: Wake Up flag
-* - PWR_FLAG_SB: StandBy flag
-* - PWR_FLAG_PVDO: PVD Output
-* Output : None
-* Return : The new state of PWR_FLAG (SET or RESET).
-*******************************************************************************/
-FlagStatus PWR_GetFlagStatus(u32 PWR_FLAG)
-{
- FlagStatus bitstatus = RESET;
-
- /* Check the parameters */
- assert_param(IS_PWR_GET_FLAG(PWR_FLAG));
-
- if ((PWR->CSR & PWR_FLAG) != (u32)RESET)
- {
- bitstatus = SET;
- }
- else
- {
- bitstatus = RESET;
- }
-
- /* Return the flag status */
- return bitstatus;
-}
-
-/*******************************************************************************
-* Function Name : PWR_ClearFlag
-* Description : Clears the PWR's pending flags.
-* Input : - PWR_FLAG: specifies the flag to clear.
-* This parameter can be one of the following values:
-* - PWR_FLAG_WU: Wake Up flag
-* - PWR_FLAG_SB: StandBy flag
-* Output : None
-* Return : None
-*******************************************************************************/
-void PWR_ClearFlag(u32 PWR_FLAG)
-{
- /* Check the parameters */
- assert_param(IS_PWR_CLEAR_FLAG(PWR_FLAG));
-
- PWR->CR |= PWR_FLAG << 2;
-}
-
-/******************* (C) COPYRIGHT 2008 STMicroelectronics *****END OF FILE****/
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