UM0097 datasheet(44/229 Pages) STMICROELECTRONICS

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Peripheral firmware overview

UM0097

44/229

RCCU_FlagStatus

Example:

This example illustrates how to check if the PLL1 is locked.

{

...

while (RCCU_FlagStatus (RCCU_PLL1_LOCK_IT) == RESET);

...

}

RCCU_FlagClear

Example:

This example illustrates how to clear PLL1 lock pending interrupt flag.

{

...

RCCU_FlagClear (

RCCU_PLL1_LOCK_I);

...

}

Function Name

RCCU_FlagStatus

Function Prototype

FlagStatus RCCU_FlagStatus(RCCU_Flags RCCU_flag);

Behavior Description

Checks whether the specified interrupt is enabled or disabled.

Input Parameter

RCCU_flag: the flag to see its status. Refer to RCCU flags on page 34

for more details on the allowed values of this parameter.

Output Parameter

None

Return Value

The specified interrupt status.

– SET: The specified flag is set.

– RESET: The specified flag is reset

Required preconditions

None

Called Functions

None

Function Name

RCCU_FlagClear

Function Prototype

void RCCU_FlagClear (RCCU_Flags RCCU_flag);

Behavior Description

This routine is used to clear the specified interrupt flag in the RCCU

registers passed in parameter.

Input Parameter

RCCU_flag: Specifies the flag to clear. Refer to RCCU flags on page 34

for more details on the allowed values of this parameter.

Output Parameter

None

Return Value

None

Required preconditions

None

Called Functions

None

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