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Comparators (COMP)

UM1581

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DocID023800 Rev 1

5.2.6 Write mode control functions

5.2.6.1 COMP_WindowCmd

Function Name

void COMP_WindowCmd ( uint32_t COMP_Selection,

FunctionalState NewState)

Function Description

Enables or disables the window mode.

Parameters

 COMP_Selection : the selected comparator. This parameter

can be COMP_Selection_COMPx where x can be 2, 4 or 6 to

select the COMP peripheral. param NewState: new state of

the window mode. This parameter can be ENABLE or

DISABLE. When enbaled, COMPx and COMPx-1 non

inverting inputs are connected together. When disabled,

COMPx and COMPx-1 non inverting inputs are disconnected.

Return values

 None.

Notes

 If the COMPx is locked, ENABLE/DISABLE the window mode

can't be performed. To unlock the configuration, perform a

system reset.

5.2.7 COMP configuration locking function

5.2.7.1 COMP_LockConfig

Function Name

void COMP_LockConfig ( uint32_t COMP_Selection)

Function Description

Lock the selected comparator (COMP1/COMP2) configuration.

Parameters

 COMP_Selection : the selected comparator. This parameter

can be COMP_Selection_COMPx where x can be 1 to 7 to

select the COMP peripheral.

Return values

 None.

Notes

 Locking the configuration means that all control bits are read-

only. To unlock the comparator configuration, perform a

system reset.

ST STM32F31xx User Manual

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