UM1753 datasheet(13/21 Pages) STMICROELECTRONICS

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UM1753

STLUX library

3.6

STLUX385A system timer (stlux_stmr)

Table 6. STLUX385A system timer

Header

Input parameters

Output

parameters

Functionality

STMR_Reset

Sets the STMR internal

registers to their default

initialization values.

STMR_TimeBaseInit

STMR_Prescaler specifies the

prescaler division factor for the

STMR. It can be a power of two

ranging from 1 to 128.

STMR_Period specifies the period to

be set for the timer interrupt

generation.

Initializes the STMR time

base unit according to the

specified parameters.

STMR_Cmd

NewState: it can be ENABLE or

DISABLE.

This function enables or

disables the STMR

peripheral.

STMR_ITConfig

STMR_IT specifies whether the

STMR interrupt must be enabled or

disabled.

NewState can be ENABLE or

DISABLE.

Enables or disables the

specified STMR

interrupts.

STMR_UpdateDisableConfig

Newstate can be ENABLE or

DISABLE.

Enables or disables the

update event for the auto-

reload preload mode.

STMR_UpdateRequestConfig

STMR_UpdateSource specifies

whether the interrupt is generated by

counter overflow only or by registers

update. Possible values are

UPDATESOURCE_GLOBAL and

UPDATESOURCE_REGULAR.

Selects the STMR Update

Request Interrupt source.

STMR_SelectOnePulseMode

STMR_OPMode specifies if the one

pulse mode must be activated.

Enables or disables the

one pulse. This mode

makes the counter stop

when the next update

event is triggered.

STMR_PrescalerConfig

Prescaler specifies the prescaler

division factor for the STMR. It can

be a power of two ranging from 1 to

128.

STMR_PSCReloadMode specifies

whether the prescaler is loaded

immediately or at the update event.

This function configures

the STMR prescaler.

STMR_ARRPreloadConfig

Newstate can be ENABLE or

DISABLE.

Enables or disables

STMR peripheral on auto-

reload preload enable

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