Operation
[COMP Exported Functions]

Disable comparator instance.

CSR EN LL_COMP_Disable

Parameters:

COMPx

Comparator instance

Return values:

None

Definition at line 527 of file stm32l4xx_ll_comp.h.

Enable comparator instance.

CSR EN LL_COMP_Enable

Parameters:

COMPx

Comparator instance

Return values:

None

Definition at line 516 of file stm32l4xx_ll_comp.h.

Get COMP enable state (0: COMP is disabled, 1: COMP is enabled) CSR EN LL_COMP_IsEnabled.

Parameters:

COMPx

Comparator instance

Return values:

State

of bit (1 or 0).

Definition at line 539 of file stm32l4xx_ll_comp.h.

Get COMP lock state.

(0: COMP is unlocked, 1: COMP is locked) CSR LOCK LL_COMP_IsLocked

Parameters:

COMPx

Comparator instance

Return values:

State

of bit (1 or 0).

Definition at line 564 of file stm32l4xx_ll_comp.h.

Lock comparator instance.

Once locked, comparator configuration can be accessed in read-only. The only way to unlock the comparator is a device hardware reset. CSR LOCK LL_COMP_Lock

Parameters:

COMPx

Comparator instance

Return values:

None

Definition at line 552 of file stm32l4xx_ll_comp.h.

Read comparator instance output level.

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

• Comparator output is low when the non-inverting input is at a lower voltage than the inverting input
• Comparator output is high when the non-inverting input is at a higher voltage than the inverting input If the polarity is inverted:
• Comparator output is high when the non-inverting input is at a lower voltage than the inverting input
• Comparator output is low when the non-inverting input is at a higher voltage than the inverting input 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 588 of file stm32l4xx_ll_comp.h.