5.21 PWR 使用说明

name    PWR_DeInit.
fun     Deinitializes the PWR peripheral registers to their default reset values.
param   none
return  none

name  PWR_BackupAccessEnable.
fun   Enables or disables access to the RTC and backup registers.
param   Cmd:
          - ENABLE
          - DISABLE
return  none

name    PWR_PvdEnable.
fun     Enables or disables the Power Voltage Detector(PVD).
param   Cmd:
          - ENABLE
          - DISABLE
return  none

name    PWR_PVDLevelConfig.
fun     Configures the voltage threshold detected by the Power Voltage Detector(PVD).
param   level (The input parameters must be the following values):
          - PWR_PVD_LEVEL_2V18    PVD level is 2.18V
          - PWR_PVD_LEVEL_2V28    PVD level is 2.28V
          - PWR_PVD_LEVEL_2V38    PVD level is 2.38V
          - PWR_PVD_LEVEL_2V48    PVD level is 2.48V
          - PWR_PVD_LEVEL_2V58    PVD level is 2.58V
          - PWR_PVD_LEVEL_2V68    PVD level is 2.68V
          - PWR_PVD_LEVEL_2V78    PVD level is 2.78V
          - PWR_PVD_LEVEL_2V88    PVD level is 2.88V

          - PWR_PVD_LEVEL_1V78    PVD level is 1.78V
          - PWR_PVD_LEVEL_1V88    PVD level is 1.88V
          - PWR_PVD_LEVEL_1V98    PVD level is 1.98V
          - PWR_PVD_LEVEL_2V08    PVD level is 2.08V
          - PWR_PVD_LEVEL_3V28    PVD level is 3.28V
          - PWR_PVD_LEVEL_3V38    PVD level is 3.38V
          - PWR_PVD_LEVEL_3V48    PVD level is 3.48V
          - PWR_PVD_LEVEL_3V58    PVD level is 3.58V
return  none

name    PWR_PVDSourceConfig.
fun     PVD Source selection.
param   PVD_source (The input parameters must be the following values):
          - PWR_PVD_VDD
          - PWR_PVD_PVDIN
return  none
note    none

name    PWR_PVDINPinSelect.
fun     PVD_IN pin selection.
param   PVD_pin (The input parameters must be the following values):
          - PVD_IN_PA10
          - PVD_IN_PB7
return  none
note    none

name    PWR_WakeUpPinEnable.
fun     Enables the Wakeup Pin functionality.
param   pin (The input parameters must be the following values):
          - WAKEUP_PIN0EN   WKUP0(PE6)
          - WAKEUP_PIN1EN   WKUP1(PA0)
          - WAKEUP_PIN2EN   WKUP2(PC13)
          - WAKEUP_PIN3EN   WKUP3(PA2)
          - WAKEUP_PIN4EN   WKUP4(PC5)
          - WAKEUP_PIN5EN   WKUP5(PD2)
          - WAKEUP_PIN6EN   WKUP6(PD3)
param   Cmd:
          - ENABLE
          - DISABLE
return  none

name    PWR_WakeUpPinPolarity.
fun     Enables the Wakeup Pin polarity.
param   pin (The input parameters must be the following values):
          - WAKEUP_PIN0POL   WKUP0(PE6)
          - WAKEUP_PIN1POL   WKUP1(PA0)
          - WAKEUP_PIN2POL   WKUP2(PC13)
          - WAKEUP_PIN3POL   WKUP3(PA2)
          - WAKEUP_PIN4POL   WKUP4(PC5)
          - WAKEUP_PIN5POL   WKUP5(PD2)
          - WAKEUP_PIN6POL   WKUP6(PD3)
param   polarity (The input parameters must be the following values):
          - POL_LOW
          - POL_HIGH
return  none

name    PWR_WakeUpPeriphEnable.
fun     Enables the Wakeup periph functionality.
param   periph (The input parameters must be the following values):
          - WAKEUP_PERIPH0EN   PERIPH0(LPTIM1 and LPTIM2)
          - WAKEUP_PERIPH1EN   PERIPH1(RTC and LSECSS)
param   Cmd:
          - ENABLE
          - DISABLE
return  none

name    PWR_EnterSLEEPMode.
fun     Enters SLEEP mode.
param   status (The input parameters must be the following values):
          - PWR_SLEEP_ON_EXIT
          - PWR_SLEEP_NOW
param   enter_mode (The input parameters must be the following values):
          - PWR_SLEEPENTRY_WFI    enter SLEEP mode with WFI instruction
          - PWR_SLEEPENTRY_WFE    enter SLEEP mode with WFE instruction
return  none

name    PWR_EnterSTOPMode.
fun     Enters STOP mode.
param   PWR_Regulator (The input parameters must be the following values):
          - PWR_REGULATOR_NORMAL      STOP mode with regulator in normal mode
          - PWR_REGULATOR_LOWPOWER    STOP mode with regulator in low power mode
param   PWR_STOPEntry (The input parameters must be the following values):
          - PWR_STOPENTRY_WFI    enter STOP mode with WFI instruction
          - PWR_STOPENTRY_WFE    enter STOP mode with WFE instruction
return  none

name    PWR_EnterSTANDBYMode.
fun     Enters STANDBY mode.
param   none
return  none

name   PWR_GetFlagStatus.
fun    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:
       - PWR_FLAG_WKUP0     PE6 Wake Up flag
       - PWR_FLAG_WKUP1     PA0 Wake Up flag
       - PWR_FLAG_WKUP2     PC13 Wake Up flag
       - PWR_FLAG_WKUP3     PA2 Wake Up flag
       - PWR_FLAG_WKUP4     PC5 Wake Up flag
       - PWR_FLAG_WKUP5     PD2 Wake Up flag
       - PWR_FLAG_WKUP6     PD3 Wake Up flag
       - PWR_FLAG_WKUPP     RTC or LSECSS or LPTIM1  or LPTIM2 Wake Up flag
       - PWR_FLAG_STANDBY   StandBy mode flag
       - PWR_FLAG_PVDRDF    PVD ready flag
       - PWR_FLAG_PVDOUT    PVD Output
       - PWR_FLAG_VBAT      VBAT mode flag
return The new state of PWR_FLAG
       - SET
       - RESET

name   PWR_ClearFlag.
fun    Clears the PWR's pending flags.
param  PWR_FLAG (specifies the flag to clear):
       This parameter can be one of the following values:
       - PWR_CLR_WKUP0     PE6 Wake Up flag
       - PWR_CLR_WKUP1     PA0 Wake Up flag
       - PWR_CLR_WKUP2     PC13 Wake Up flag
       - PWR_CLR_WKUP3     PA2 Wake Up flag
       - PWR_CLR_WKUP4     PC5 Wake Up flag
       - PWR_CLR_WKUP5     PD2 Wake Up flag
       - PWR_CLR_WKUP6     PD3 Wake Up flag
       - PWR_CLR_WKUPP     RTC or LSECSS or LPTIM1  or LPTIM2 Wake Up flag
       - PWR_CLR_STANDBY   StandBy mode flag
       - PWR_CLR_VBAT      VBAT mode flag
return  none

name    PWR_ConfigBKROutput.
fun     Selects the BKR regulator output level.
param   voltage_output (The input parameters must be the following values):
          - PWR_BKR_OUTPUT_0_8V    output 0.8V
          - PWR_BKR_OUTPUT_0_9V    output 0.9V
return  none
note    none

name    PWR_EnableIWDGReset.
fun     Configure whether to generate a reset request when the IWDG counter reaches 0.
param   Cmd:
          - ENABLE
          - DISABLE
return  none.

name    PWR_EnableBKPSRAMRetainInStandbyMode.
fun     Enable or disable BKP SRAM retain in standby mode.
param   Cmd:
          - ENABLE
          - DISABLE
return  none.

name    PWR_EnableBKPSRAMRetainInVbatMode.
fun     Enable or disable BKP SRAM retain in Vbat mode.
param   Cmd:
          - ENABLE
          - DISABLE
return  none.

name    PWR_EnableLSENoiseMitigation.
fun     Enable or disable LSE noise mitigation.
param   Cmd:
          - ENABLE
          - DISABLE
return  none
note    Noise mitigation must be enabled after the RCC_BDCTRL.LSERD set.

name    PWR_EnableLSECSSCrystalInt.
fun     Enable or disable LSE Clock Safety System Interrupt in Crystal Mode.
param   Cmd:
          - ENABLE
          - DISABLE
return  none
note    none

name    PWR_ConfigLSECSSBypassHighLimit.
fun     Configuring the LSE Frequency High Limit for Bypass Mode.
param   high_limit (The input parameters must be the following values):
          - PWR_HIGH_LIMIT_1M
          - PWR_HIGH_LIMIT_160K
return  none
note    none

name    PWR_EnableLSECSSRTCsourceSwitch.
fun     Enable or disable switching the RTC clock source
        from LSE to LSI when the LSE clock fails.
param   Cmd:
          - ENABLE
          - DISABLE
return  none

name   PWR_GetLSECSSFlagStatus.
fun    Checks whether the specified PWR LSECSS flag is set or not.
param PWR_FLAG (specifies the flag to check):
      This parameter can be one of the following values:
       - PWR_FLAG_LSECSSCRYF    LSE Clock Security System Failure in Crystal Mode
       - PWR_FLAG_LSEFHF        LSE Frequency Exceeds High Limit Flag
       - PWR_FLAG_LSEFLF        LSE frequency below low limit flag
       - PWR_FLAG_LSECSSF       LSE Clock Security System Failure flag
return The new state of PWR_FLAG
       - SET
       - RESET

name    PWR_ClearLSECSSFlag.
fun     Clears the LSECSS all flags.
param   none
return  none
note  Clear the following flags:
       - PWR_FLAG_LSECSSCRYF    LSE Clock Security System Failure in Crystal Mode
       - PWR_FLAG_LSEFHF        LSE Frequency Exceeds High Limit Flag
       - PWR_FLAG_LSEFLF        LSE frequency below low limit flag
       - PWR_FLAG_LSECSSF       LSE Clock Security System Failure flag

name    PWR_ConfigLco.
fun     LCO low-speed clock output selection.
param   LCO_source (The input parameters must be the following values):
          - PWR_LCO_LSI
          - PWR_LCO_LSE
return  none
note    none

name    PWR_EnableLCO.
fun     Enable or disable low-speed clock output
param   Cmd:
          - ENABLE
          - DISABLE
return  none

name   PWR_EnableNRSTOut.
fun    Enable or disable the output function of NRST Pin.
param   Cmd:
          - ENABLE
          - DISABLE
return  none.

name   PWR_ConfigNRSTDigitalFilterWidth.
fun    Configuring the NRST digital filter width.
param  NRST_dfw:
        - 0x0 ~ 0xFF
return  none.
note  digital filter width =  sysclk * NRST_dfw.

name    PWR_EnableNRSTDigitalFilter.
fun     Enable or disable NRST digital filter
param   Cmd:
          - ENABLE
          - DISABLE
return  none

name    PWR_EnableNRSTAnalogFilter.
fun     Enable or disable NRST Analog filter
param   Cmd:
          - ENABLE
          - DISABLE
return  none