Peripheral Control functions

Management functions. More...

Functions
HAL_StatusTypeDef	HAL_COMP_Lock (COMP_HandleTypeDef *hcomp)
	Lock the selected comparator configuration.
uint32_t	HAL_COMP_GetOutputLevel (COMP_HandleTypeDef *hcomp)
	Return the output level (high or low) of the selected comparator.
__weak void	HAL_COMP_TriggerCallback (COMP_HandleTypeDef *hcomp)
	Comparator trigger callback.

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Detailed Description

Management functions.

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                      ##### Peripheral Control functions #####
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    [..]
    This subsection provides a set of functions allowing to control the comparators.

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Function Documentation

uint32_t HAL_COMP_GetOutputLevel

(

COMP_HandleTypeDef *

hcomp

)

Return the output level (high or low) of the selected comparator.

The output level depends on the selected polarity. If the polarity is not inverted:

• Comparator output is low when the input plus is at a lower voltage than the input minus
• Comparator output is high when the input plus is at a higher voltage than the input minus If the polarity is inverted:
• Comparator output is high when the input plus is at a lower voltage than the input minus
• Comparator output is low when the input plus is at a higher voltage than the input minus

  Parameters:

  hcomp

  COMP handle

  Return values:

  Returns

  the selected comparator output level: COMP_OUTPUT_LEVEL_LOW COMP_OUTPUT_LEVEL_HIGH

Definition at line 953 of file stm32l4xx_hal_comp.c.

References assert_param, COMP_OUTPUT_LEVEL_BITOFFSET_POS, and __COMP_HandleTypeDef::Instance.

HAL_StatusTypeDef HAL_COMP_Lock

(

COMP_HandleTypeDef *

hcomp

)

Lock the selected comparator configuration.

Note:

A system reset is required to unlock the comparator configuration.

Locking the comparator from reset state is possible if __HAL_RCC_SYSCFG_CLK_ENABLE() is being called before.

Parameters:

hcomp

COMP handle

Return values:

HAL

status

Definition at line 892 of file stm32l4xx_hal_comp.c.

References __HAL_COMP_IS_LOCKED, __HAL_COMP_LOCK, assert_param, HAL_COMP_STATE_BUSY_LOCKED, HAL_COMP_STATE_READY, HAL_COMP_STATE_READY_LOCKED, HAL_COMP_STATE_RESET, HAL_COMP_STATE_RESET_LOCKED, __COMP_HandleTypeDef::Instance, and __COMP_HandleTypeDef::State.

void HAL_COMP_TriggerCallback

(

COMP_HandleTypeDef *

hcomp

)

Comparator trigger callback.

Parameters:

hcomp

COMP handle

Return values:

None

Definition at line 967 of file stm32l4xx_hal_comp.c.

Referenced by HAL_COMP_Init(), HAL_COMP_IRQHandler(), and HAL_COMP_UnRegisterCallback().