ST STM32F31xx

Power control (PWR)
UM1581
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DocID023800 Rev 1
17.2.6 Backup domain access function
17.2.6.1 PWR_DeInit
Function Name
void PWR_DeInit ( void )
Function Description
Deinitializes the PWR peripheral registers to their default reset
values.
Parameters
 None.
Return values
 None.
Notes
 None.
17.2.6.2 PWR_BackupAccessCmd
Function Name
void PWR_BackupAccessCmd ( FunctionalState NewState)
Function Description
Enables or disables access to the RTC and backup registers.
Parameters
 NewState : new state of the access to the RTC and backup
registers. This parameter can be: ENABLE or DISABLE.
Return values
 None.
Notes
 If the HSE divided by 32 is used as the RTC clock, the
Backup Domain Access should be kept enabled.
17.2.7 PVD configuration function
17.2.7.1 PWR_PVDLevelConfig
Function Name
void PWR_PVDLevelConfig ( uint32_t PWR_PVDLevel)
Function Description
Configures the voltage threshold detected by the Power Voltage
Detector(PVD).
Parameters
 PWR_PVDLevel : specifies the PVD detection level This
parameter can be one of the following values:
 PWR_PVDLevel_0 : PVD detection level set to 2.18V
 PWR_PVDLevel_1 : PVD detection level set to 2.28V
 PWR_PVDLevel_2 : PVD detection level set to 2.38V