ST STM32F31xx

UM1581
Operational amplifier (OPAMP)
DocID023800 Rev 1
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can be any value lower or equal to 0x0000001F.
Return values
 None.
Notes
 None.
16.2.4.14 OPAMP_StartCalibration
Function Name
void OPAMP_StartCalibration ( uint32_t OPAMP_Selection,
FunctionalState NewState)
Function Description
Start or stop the calibration of selected OPAMP peripheral.
Parameters
 OPAMP_Selection : the selected OPAMP. This parameter
can be OPAMP_Selection_OPAMPx where x can be 1 to 4 to
select the OPAMP peripheral.
 NewState : new state of the OPAMP peripheral. This
parameter can be: ENABLE or DISABLE.
Return values
 None.
Notes
 If the selected OPAMP is locked, start/stop can't be
performed. To unlock the configuration, perform a system
reset.
16.2.5 OPAMP configuration locking function
16.2.5.1 OPAMP_LockConfig
Function Name
void OPAMP_LockConfig ( uint32_t OPAMP_Selection)
Function Description
Lock the selected OPAMP configuration.
Parameters
 OPAMP_Selection : the selected OPAMP. This parameter
can be OPAMP_Selection_OPAMPx where x can be 1 to 4 to
select the OPAMP peripheral.
Return values
 None.
Notes
 Locking the configuration means that all control bits are read-
only. To unlock the OPAMP configuration, perform a system
reset.