Backup Domain Access Function; Pvd Configuration Function - ST STM32F31xx User Manual

Power control (PWR)
17.2.6

Backup domain access function

17.2.6.1 PWR_DeInit
Function Name
Function Description
Parameters
Return values
Notes
17.2.6.2 PWR_BackupAccessCmd
Function Name
Function Description
Parameters
Return values
Notes
17.2.7

PVD configuration function

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