AN4141 datasheet(27/42 Pages) STMICROELECTRONICS

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AN4141

HAL to StdPeriph_Lib list of changes

3.3.4

RST

In the standard library, this IP is presented byone function only, RST_GetFlagStatus() , to

check whether the specified RST flag is set or not. In the Hardware Abstraction Layer driver,

this check is done by access registers.

3.3.5

PWR

In addition to the low power API provided in the Hardware Abstraction Layer (file sleep.c),

some additional/basic APIs are provided by the STM32W108xx standard library drivers.

These APIs are summarized in the following table:

3.3.6

WDG

The STM32W108xx microcontroller integrates a watchdog timer which can be enabled to

provide protection against software crashes and ARM® Cortex-M3 CPU lockup.

The following table provides an overview of the HAL vs StdPeriph_Driver functions that

enable a standard use of the WDG features. The StdPeriph WDG API covers all the HAL

ones, so the WDG API is removed from the HAL. Refer to section XXXXX.

Table 11. STM32W108xx PWR driver overview

StdPeriph_Driver API

Functionality description

PWR_DeInit()

Deinitializes the PWR peripheral registers to their default reset

values

PWR_VREGStructInit()

Fills each VREG_InitStruct member with its default value

PWR_VREGInit()

Initializes the VREG peripheral according to the specified

parameters in the VREG_InitStruct

PWR_GPIOWakeUpPinCmd()

Enables or disables the GPIO WakeUp pin

PWR_WakeUpFilterConfig()

Enables or disables the WakeUp source filter

PWR_WakeUpSourceConfig()

Enables or disables the WakeUp method form low power mode

PWR_FreezestateLVoutput()

Enables or disables the freeze GPIO state LV output

PWR_DeepSleepMode0Cmd()

Enables or disables the deep sleep mode 0 when debugger is

attached

PWR_CoreWake()

Wake core form a deep sleep 0

PWR_InhibitCSYSPWRUPACK()

Disables the cortex-M3 system access to the ACK bit in the

CSYSPWRUPACKSR register

PWR_GetFlagStatus()

Checks whether the specified PWR flag is set or not

PWR_ClearFlag()

Clears the PWR pending flags

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