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Operational amplifier (OPAMP)

UM1581

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DocID023800 Rev 1

16.2.4.3 OPAMP_StructInit

Function Name

void OPAMP_StructInit ( OPAMP_InitTypeDef *

OPAMP_InitStruct)

Function Description

Fills each OPAMP_InitStruct member with its default value.

Parameters

 OPAMP_InitStruct : pointer to an OPAMP_InitTypeDef

structure which will be initialized.

Return values

 None.

Notes

 None.

16.2.4.4 OPAMP_PGAConfig

Function Name

void OPAMP_PGAConfig ( uint32_t OPAMP_Selection,

uint32_t OPAMP_PGAGain, uint32_t OPAMP_PGAConnect)

Function Description

Configure the feedback resistor gain.

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, gain configuration can't be

performed. To unlock the configuration, perform a system

reset.

16.2.4.5 OPAMP_VrefConfig

Function Name

void OPAMP_VrefConfig ( uint32_t OPAMP_Selection,

uint32_t OPAMP_Vref)

ST STM32F31xx User Manual

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