ST STM32F31xx - PWR Firmware Driver Defines; Pwr

Power control (PWR)
UM1581
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DocID023800 Rev 1
event, RTC TimeStamp event or RTC Wakeup.
 PWR_FLAG_SB : StandBy flag. This flag indicates that
the system was resumed from StandBy mode.
 PWR_FLAG_PVDO : PVD Output. This flag is valid only
if PVD is enabled by the PWR_PVDCmd() function.
 PWR_FLAG_VREFINTRDY : Internal Voltage
Reference Ready flag. This flag indicates the state of the
internal voltage reference, VREFINT.
Return values
 The new state of PWR_FLAG (SET or RESET).
Notes
 None.
17.2.10.2 PWR_ClearFlag
Function Name
void PWR_ClearFlag ( uint32_t PWR_FLAG)
Function Description
Clears the PWR's pending flags.
Parameters
 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
Return values
 None.
Notes
 None.
17.3 PWR Firmware driver defines
17.3.1 PWR
PWR
PWR_Flag
 #define: PWR_FLAG_WU PWR_CSR_WUF
 #define: PWR_FLAG_SB PWR_CSR_SBF
 #define: PWR_FLAG_PVDO PWR_CSR_PVDO