Configuration of OPAMP hierarchical scope: OPAMP instance

Functions
__STATIC_INLINE void	LL_OPAMP_SetPowerMode (OPAMP_TypeDef *OPAMPx, uint32_t PowerMode)
	Set OPAMP power mode. More...
__STATIC_INLINE uint32_t	LL_OPAMP_GetPowerMode (OPAMP_TypeDef *OPAMPx)
	Get OPAMP power mode. CSR OPALPM LL_OPAMP_GetPowerMode. More...
__STATIC_INLINE void	LL_OPAMP_SetMode (OPAMP_TypeDef *OPAMPx, uint32_t Mode)
	Set OPAMP mode calibration or functional. More...
__STATIC_INLINE uint32_t	LL_OPAMP_GetMode (OPAMP_TypeDef *OPAMPx)
	Get OPAMP mode calibration or functional. More...
__STATIC_INLINE void	LL_OPAMP_SetFunctionalMode (OPAMP_TypeDef *OPAMPx, uint32_t FunctionalMode)
	Set OPAMP functional mode by setting internal connections. OPAMP operation in standalone, follower, ... More...
__STATIC_INLINE uint32_t	LL_OPAMP_GetFunctionalMode (OPAMP_TypeDef *OPAMPx)
	Get OPAMP functional mode from setting of internal connections. OPAMP operation in standalone, follower, ... CSR OPAMODE LL_OPAMP_GetFunctionalMode. More...
__STATIC_INLINE void	LL_OPAMP_SetPGAGain (OPAMP_TypeDef *OPAMPx, uint32_t PGAGain)
	Set OPAMP PGA gain. More...
__STATIC_INLINE uint32_t	LL_OPAMP_GetPGAGain (OPAMP_TypeDef *OPAMPx)
	Get OPAMP PGA gain. More...

Detailed Description

Function Documentation

LL_OPAMP_GetFunctionalMode()

__STATIC_INLINE uint32_t LL_OPAMP_GetFunctionalMode

(

OPAMP_TypeDef *

OPAMPx

)

Get OPAMP functional mode from setting of internal connections. OPAMP operation in standalone, follower, ... CSR OPAMODE LL_OPAMP_GetFunctionalMode.

Parameters

OPAMPx

OPAMP instance

Return values

Returned

value can be one of the following values: LL_OPAMP_MODE_STANDALONE LL_OPAMP_MODE_FOLLOWER LL_OPAMP_MODE_PGA

Definition at line 516 of file stm32l4xx_ll_opamp.h.

{
  return (uint32_t)(READ_BIT(OPAMPx->CSR, OPAMP_CSR_OPAMODE));
}

LL_OPAMP_GetMode()

__STATIC_INLINE uint32_t LL_OPAMP_GetMode

(

OPAMP_TypeDef *

OPAMPx

)

Get OPAMP mode calibration or functional.

Note

OPAMP mode corresponds to functional or calibration mode:

• functional mode: OPAMP operation in standalone, follower, ... Set functional mode using function LL_OPAMP_SetFunctionalMode().
• calibration mode: offset calibration of the selected transistors differential pair NMOS or PMOS. CSR CALON LL_OPAMP_GetMode

Parameters

OPAMPx

OPAMP instance

Return values

Returned

value can be one of the following values: LL_OPAMP_MODE_FUNCTIONAL LL_OPAMP_MODE_CALIBRATION

Definition at line 480 of file stm32l4xx_ll_opamp.h.

{
  return (uint32_t)(READ_BIT(OPAMPx->CSR, OPAMP_CSR_CALON));
}

LL_OPAMP_GetPGAGain()

__STATIC_INLINE uint32_t LL_OPAMP_GetPGAGain

(

OPAMP_TypeDef *

OPAMPx

)

Get OPAMP PGA gain.

Note

Preliminarily, OPAMP must be set in mode PGA using function LL_OPAMP_SetFunctionalMode(). CSR PGGAIN LL_OPAMP_GetPGAGain

Parameters

OPAMPx

OPAMP instance

Return values

Returned

value can be one of the following values: LL_OPAMP_PGA_GAIN_2 LL_OPAMP_PGA_GAIN_4 LL_OPAMP_PGA_GAIN_8 LL_OPAMP_PGA_GAIN_16

Definition at line 551 of file stm32l4xx_ll_opamp.h.

{
  return (uint32_t)(READ_BIT(OPAMPx->CSR, OPAMP_CSR_PGGAIN));
}

LL_OPAMP_GetPowerMode()

__STATIC_INLINE uint32_t LL_OPAMP_GetPowerMode

(

OPAMP_TypeDef *

OPAMPx

)

Get OPAMP power mode. CSR OPALPM LL_OPAMP_GetPowerMode.

Parameters

OPAMPx

OPAMP instance

Return values

Returned

value can be one of the following values: LL_OPAMP_POWERMODE_NORMAL LL_OPAMP_POWERMODE_LOWPOWER

Definition at line 434 of file stm32l4xx_ll_opamp.h.

{
  register uint32_t power_mode = (READ_BIT(OPAMPx->CSR, OPAMP_CSR_OPALPM));

  return (uint32_t)(power_mode | (power_mode >> (OPAMP_CSR_OPALPM_Pos)));
}

LL_OPAMP_SetFunctionalMode()

__STATIC_INLINE void LL_OPAMP_SetFunctionalMode	(	OPAMP_TypeDef *	OPAMPx,
		uint32_t	FunctionalMode
	)

Set OPAMP functional mode by setting internal connections. OPAMP operation in standalone, follower, ...

Note

This function reset bit of calibration mode to ensure to be in functional mode, in order to have OPAMP parameters (inputs selection, ...) set with the corresponding OPAMP mode to be effective. CSR OPAMODE LL_OPAMP_SetFunctionalMode

Parameters

OPAMPx	OPAMP instance
FunctionalMode	This parameter can be one of the following values: LL_OPAMP_MODE_STANDALONE LL_OPAMP_MODE_FOLLOWER LL_OPAMP_MODE_PGA

Return values

None

Definition at line 500 of file stm32l4xx_ll_opamp.h.

{
  /* Note: Bit OPAMP_CSR_CALON reset to ensure to be in functional mode */
  MODIFY_REG(OPAMPx->CSR, OPAMP_CSR_OPAMODE | OPAMP_CSR_CALON, FunctionalMode);
}

LL_OPAMP_SetMode()

__STATIC_INLINE void LL_OPAMP_SetMode	(	OPAMP_TypeDef *	OPAMPx,
		uint32_t	Mode
	)

Set OPAMP mode calibration or functional.

Note

OPAMP mode corresponds to functional or calibration mode:

• functional mode: OPAMP operation in standalone, follower, ... Set functional mode using function LL_OPAMP_SetFunctionalMode().
• calibration mode: offset calibration of the selected transistors differential pair NMOS or PMOS.

On this STM32 serie, during calibration, OPAMP functional mode must be set to standalone or follower mode (in order to open internal connections to resistors of PGA mode). Refer to function LL_OPAMP_SetFunctionalMode(). CSR CALON LL_OPAMP_SetMode

Parameters

OPAMPx	OPAMP instance
Mode	This parameter can be one of the following values: LL_OPAMP_MODE_FUNCTIONAL LL_OPAMP_MODE_CALIBRATION

Return values

None

Definition at line 461 of file stm32l4xx_ll_opamp.h.

{
  MODIFY_REG(OPAMPx->CSR, OPAMP_CSR_CALON, Mode);
}

LL_OPAMP_SetPGAGain()

__STATIC_INLINE void LL_OPAMP_SetPGAGain	(	OPAMP_TypeDef *	OPAMPx,
		uint32_t	PGAGain
	)

Set OPAMP PGA gain.

Note

Preliminarily, OPAMP must be set in mode PGA using function LL_OPAMP_SetFunctionalMode(). CSR PGGAIN LL_OPAMP_SetPGAGain

Parameters

OPAMPx	OPAMP instance
PGAGain	This parameter can be one of the following values: LL_OPAMP_PGA_GAIN_2 LL_OPAMP_PGA_GAIN_4 LL_OPAMP_PGA_GAIN_8 LL_OPAMP_PGA_GAIN_16

Return values

None

Definition at line 534 of file stm32l4xx_ll_opamp.h.

{
  MODIFY_REG(OPAMPx->CSR, OPAMP_CSR_PGGAIN, PGAGain);
}

LL_OPAMP_SetPowerMode()

__STATIC_INLINE void LL_OPAMP_SetPowerMode	(	OPAMP_TypeDef *	OPAMPx,
		uint32_t	PowerMode
	)

Set OPAMP power mode.

Note

The OPAMP must be disabled to change this configuration. CSR OPALPM LL_OPAMP_SetPowerMode

Parameters

OPAMPx	OPAMP instance
PowerMode	This parameter can be one of the following values: LL_OPAMP_POWERMODE_NORMAL LL_OPAMP_POWERMODE_LOWPOWER

Return values

None

Definition at line 421 of file stm32l4xx_ll_opamp.h.

{
  MODIFY_REG(OPAMPx->CSR, OPAMP_CSR_OPALPM, (PowerMode & OPAMP_POWERMODE_CSR_BIT_MASK));
}