WWDG driver modules.
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Modules |
| | WWDG_Exported_Constants |
| | WWDG_Private_Functions |
Defines |
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#define | WWDG_OFFSET (WWDG_BASE - PERIPH_BASE) |
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#define | CFR_OFFSET (WWDG_OFFSET + 0x04) |
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#define | EWI_BitNumber 0x09 |
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#define | CFR_EWI_BB (PERIPH_BB_BASE + (CFR_OFFSET * 32) + (EWI_BitNumber * 4)) |
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#define | CFR_WDGTB_MASK ((uint32_t)0xFFFFFE7F) |
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#define | CFR_W_MASK ((uint32_t)0xFFFFFF80) |
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#define | BIT_MASK ((uint8_t)0x7F) |
Functions |
| void | WWDG_DeInit (void) |
| | Deinitializes the WWDG peripheral registers to their default reset values.
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| void | WWDG_SetPrescaler (uint32_t WWDG_Prescaler) |
| | Sets the WWDG Prescaler.
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| void | WWDG_SetWindowValue (uint8_t WindowValue) |
| | Sets the WWDG window value.
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| void | WWDG_EnableIT (void) |
| | Enables the WWDG Early Wakeup interrupt(EWI).
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| void | WWDG_SetCounter (uint8_t Counter) |
| | Sets the WWDG counter value.
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| void | WWDG_Enable (uint8_t Counter) |
| | Enables WWDG and load the counter value.
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| FlagStatus | WWDG_GetFlagStatus (void) |
| | Checks whether the Early Wakeup interrupt flag is set or not.
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| void | WWDG_ClearFlag (void) |
| | Clears Early Wakeup interrupt flag.
|
Detailed Description
WWDG driver modules.
Function Documentation
| void WWDG_ClearFlag |
( |
void |
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) |
|
Clears Early Wakeup interrupt flag.
- Parameters:
-
- Return values:
-
| void WWDG_DeInit |
( |
void |
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) |
|
Deinitializes the WWDG peripheral registers to their default reset values.
- Parameters:
-
- Return values:
-
| void WWDG_Enable |
( |
uint8_t |
Counter |
) |
|
Enables WWDG and load the counter value.
- Parameters:
-
| Counter,: | specifies the watchdog counter value. This parameter must be a number between 0x40 and 0x7F (to prevent generating an immediate reset) |
- Return values:
-
| void WWDG_EnableIT |
( |
void |
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) |
|
Enables the WWDG Early Wakeup interrupt(EWI).
- Note:
- Once enabled this interrupt cannot be disabled except by a system reset.
- Parameters:
-
- Return values:
-
| FlagStatus WWDG_GetFlagStatus |
( |
void |
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) |
|
Checks whether the Early Wakeup interrupt flag is set or not.
- Parameters:
-
- Return values:
-
| The | new state of the Early Wakeup interrupt flag (SET or RESET) |
| void WWDG_SetCounter |
( |
uint8_t |
Counter |
) |
|
Sets the WWDG counter value.
- Parameters:
-
| Counter,: | specifies the watchdog counter value. This parameter must be a number between 0x40 and 0x7F (to prevent generating an immediate reset) |
- Return values:
-
| void WWDG_SetPrescaler |
( |
uint32_t |
WWDG_Prescaler |
) |
|
Sets the WWDG Prescaler.
- Parameters:
-
| WWDG_Prescaler,: | specifies the WWDG Prescaler. This parameter can be one of the following values:
- WWDG_Prescaler_1: WWDG counter clock = (PCLK1/4096)/1
- WWDG_Prescaler_2: WWDG counter clock = (PCLK1/4096)/2
- WWDG_Prescaler_4: WWDG counter clock = (PCLK1/4096)/4
- WWDG_Prescaler_8: WWDG counter clock = (PCLK1/4096)/8
|
- Return values:
-
| void WWDG_SetWindowValue |
( |
uint8_t |
WindowValue |
) |
|
Sets the WWDG window value.
- Parameters:
-
| WindowValue,: | specifies the window value to be compared to the downcounter. This parameter value must be lower than 0x80. |
- Return values:
-
