ST STM32F31xx User Manual

Independent watchdog (IWDG)
UM1581
280/584
DocID023800 Rev 1
 IWDG_GetFlagStatus()
14.2.6 Prescaler and counter configuration functions
14.2.6.1 IWDG_WriteAccessCmd
Function Name
void IWDG_WriteAccessCmd ( uint16_t IWDG_WriteAccess)
Function Description
Enables or disables write access to IWDG_PR and IWDG_RLR
registers.
Parameters
 IWDG_WriteAccess : new state of write access to
IWDG_PR and IWDG_RLR registers. This parameter can be
one of the following values:
 IWDG_WriteAccess_Enable : Enable write access to
IWDG_PR and IWDG_RLR registers
 IWDG_WriteAccess_Disable : Disable write access to
IWDG_PR and IWDG_RLR registers
Return values
 None.
Notes
 None.
14.2.6.2 IWDG_SetPrescaler
Function Name
void IWDG_SetPrescaler ( uint8_t IWDG_Prescaler)
Function Description
Sets IWDG Prescaler value.
Parameters
 IWDG_Prescaler : specifies the IWDG Prescaler value. This
parameter can be one of the following values:
 IWDG_Prescaler_4 : IWDG prescaler set to 4
 IWDG_Prescaler_8 : IWDG prescaler set to 8
 IWDG_Prescaler_16 : IWDG prescaler set to 16
 IWDG_Prescaler_32 : IWDG prescaler set to 32
 IWDG_Prescaler_64 : IWDG prescaler set to 64
 IWDG_Prescaler_128 : IWDG prescaler set to 128
 IWDG_Prescaler_256 : IWDG prescaler set to 256
Return values
 None.
Notes
 None.

ST STM32F31xx Specifications

General

Brand	ST
Model	STM32F31xx
Category	Microcontrollers
Language	English