UM0097 datasheet(20/229 Pages) STMICROELECTRONICS

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Peripheral firmware overview

UM0097

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PCU flags

The following enumeration defines the PCU flags. PCU_Flags enumeration is defined in the

file 71x_pcu.h:

typedef enum

{

PCU_WREN = 0x8000,

PCU_VROK = 0x1000

} PCU_Flags;

Table 8 lists the different PCU flags.

3.1.2

Firmware library functions

Table 9 enumerates the different functions of the PCU library.

Table 8.

PCU flags

PCU Flags

Description

PCU_WREN

Power Control Unit register Write Enable flag

PCU_VROK

Main Voltage Regulator OK flag

Table 9.

PCU library functions

Function Name

Description

PCU_MVRStatus

Reads and returns the PCU main voltage regulator status

PCU_FlagStatus

Reads and returns the status of a specified PCU flag

PCU_VRConfig

Configures (Enables / Disables) the PCU voltage regulators

PCU_VRStatus

Reads and returns the PCU voltage regulator status

PCU_LVDDisable

Disables the Low Voltage Detector

PCU_LVDStatus

Reads and returns the LVD status

PCU_LPModesConfig

Configures the different STR71x low power mode options

PCU_WFI

Used to enter WFI and LPWFI modes

PCU_STOP

Used to enter STOP mode

PCU_STANDBY

Used to enter STANDBY mode

PCU_FlashBurstCmd

This routine is used to set the FLASH to LP/BURST mode

PCU_32OSCCmd

This routine is used to enable/disable the 32 kHz oscillator

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