Operation on comparator instance

Functions
__STATIC_INLINE void	LL_COMP_Enable (COMP_TypeDef *COMPx)
	Enable comparator instance.
__STATIC_INLINE void	LL_COMP_Disable (COMP_TypeDef *COMPx)
	Disable comparator instance.
__STATIC_INLINE uint32_t	LL_COMP_IsEnabled (COMP_TypeDef *COMPx)
	Get comparator enable state (0: COMP is disabled, 1: COMP is enabled)
__STATIC_INLINE void	LL_COMP_Lock (COMP_TypeDef *COMPx)
	Lock comparator instance.
__STATIC_INLINE uint32_t	LL_COMP_IsLocked (COMP_TypeDef *COMPx)
	Get comparator lock state (0: COMP is unlocked, 1: COMP is locked).
__STATIC_INLINE uint32_t	LL_COMP_ReadOutputLevel (COMP_TypeDef *COMPx)
	Read comparator instance output level.

---

Function Documentation

__STATIC_INLINE void LL_COMP_Disable

(

COMP_TypeDef *

COMPx

)

Disable comparator instance.

Reference Manual to LL API cross reference:

CSR EN LL_COMP_Disable

Parameters:

COMPx

Comparator instance

Return values:

None

Definition at line 777 of file stm32l4xx_ll_comp.h.

__STATIC_INLINE void LL_COMP_Enable

(

COMP_TypeDef *

COMPx

)

Enable comparator instance.

Note:

After enable from off state, comparator requires a delay to reach reach propagation delay specification. Refer to device datasheet, parameter "tSTART".

Reference Manual to LL API cross reference:

CSR EN LL_COMP_Enable

Parameters:

COMPx

Comparator instance

Return values:

None

Definition at line 766 of file stm32l4xx_ll_comp.h.

__STATIC_INLINE uint32_t LL_COMP_IsEnabled

(

COMP_TypeDef *

COMPx

)

Get comparator enable state (0: COMP is disabled, 1: COMP is enabled)

Reference Manual to LL API cross reference:

CSR EN LL_COMP_IsEnabled

Parameters:

COMPx

Comparator instance

Return values:

State

of bit (1 or 0).

Definition at line 789 of file stm32l4xx_ll_comp.h.

__STATIC_INLINE uint32_t LL_COMP_IsLocked

(

COMP_TypeDef *

COMPx

)

Get comparator lock state (0: COMP is unlocked, 1: COMP is locked).

Note:

Once locked, comparator configuration can be accessed in read-only.

The only way to unlock the comparator is a device hardware reset.

Reference Manual to LL API cross reference:

CSR LOCK LL_COMP_IsLocked

Parameters:

COMPx

Comparator instance

Return values:

State

of bit (1 or 0).

Definition at line 816 of file stm32l4xx_ll_comp.h.

Referenced by LL_COMP_DeInit(), and LL_COMP_Init().

__STATIC_INLINE void LL_COMP_Lock

(

COMP_TypeDef *

COMPx

)

Lock comparator instance.

Note:

Once locked, comparator configuration can be accessed in read-only.

The only way to unlock the comparator is a device hardware reset.

Reference Manual to LL API cross reference:

CSR LOCK LL_COMP_Lock

Parameters:

COMPx

Comparator instance

Return values:

None

Definition at line 802 of file stm32l4xx_ll_comp.h.

__STATIC_INLINE uint32_t LL_COMP_ReadOutputLevel

(

COMP_TypeDef *

COMPx

)

Read comparator instance output level.

Note:

The comparator output level depends on the selected polarity (Refer to function LL_COMP_SetOutputPolarity()). If the comparator 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 comparator 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

Reference Manual to LL API cross reference:

CSR VALUE LL_COMP_ReadOutputLevel

Parameters:

COMPx

Comparator instance

Return values:

Returned

value can be one of the following values: LL_COMP_OUTPUT_LEVEL_LOW LL_COMP_OUTPUT_LEVEL_HIGH

Definition at line 841 of file stm32l4xx_ll_comp.h.

References LL_COMP_OUTPUT_LEVEL_BITOFFSET_POS.