UM0097 datasheet(97/229 Pages) STMICROELECTRONICS

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UM0097

Peripheral firmware overview

97/229

WDG_CntRefresh

Example:

This example illustrates how to refresh the watchdog counter.

{

...

WDG_CntRefresh ();

...

}

WDG_PrescalerConfig

Example:

This example illustrates how to set the prescaler value.

{

...

WDG_PrescalerConfig (0x62);

...

}

Function Name

WDG_CntRefresh

Function Prototype

void WDG_CntRefresh (void);

Behavior Description

This routine is used to refresh the counter to prevent a reset being

generated by the Watchdog. It writes 0xA55A then 0x5AA5 in the key

Input Parameter

None

Output Parameter

None

Return Value

None

Required preconditions

None

Called Functions

None

Function Name

WDG_PrescalerConfig

Function Prototype

void WDG_PrescalerConfig (u8 Prescaler);

Behavior Description

This routine is used to set the the counter prescaler value. The clock to

Timer Counter is divided by (Prescaler + 1)

Input Parameter

Prescaler: specifies the prescaler value (8 bit).

Output Parameter

None

Return Value

None

Required preconditions

None

Called Functions

None

UM0097 Datasheet(PDF) 97 Page - STMicroelectronics

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