Extended OPAMP HAL module driver. This file provides firmware functions to manage the following functionalities of the operational amplifier(s) peripheral: + Extended Initialization and de-initialization functions + Extended Peripheral Control functions. More...

Functions
HAL_StatusTypeDef	HAL_OPAMPEx_Unlock (OPAMP_HandleTypeDef *hopamp)
	Unlock the selected OPAMP configuration.

HAL_StatusTypeDef	HAL_OPAMPEx_SelfCalibrateAll (OPAMP_HandleTypeDef hopamp1, OPAMP_HandleTypeDef hopamp2)
	Run the self calibration of the 2 OPAMPs in parallel.

Detailed Description

Extended OPAMP HAL module driver. This file provides firmware functions to manage the following functionalities of the operational amplifier(s) peripheral: + Extended Initialization and de-initialization functions + Extended Peripheral Control functions.

Author:

MCD Application Team

  ******************************************************************************
  * @attention
  *
  * Copyright (c) 2017 STMicroelectronics.
  * All rights reserved.
  *
  * This software is licensed under terms that can be found in the LICENSE file
  * in the root directory of this software component.
  * If no LICENSE file comes with this software, it is provided AS-IS.
  *
  ******************************************************************************
  */

/* Includes ------------------------------------------------------------------*/
#include "stm32l4xx_hal.h"

/** @addtogroup STM32L4xx_HAL_Driver
  * @{
  */

/** @defgroup OPAMPEx OPAMPEx
  * @brief OPAMP Extended HAL module driver
  * @{
  */

#ifdef HAL_OPAMP_MODULE_ENABLED

/* Private typedef -----------------------------------------------------------*/
/* Private define ------------------------------------------------------------*/
/* Private macro -------------------------------------------------------------*/
/* Private variables ---------------------------------------------------------*/
/* Private function prototypes -----------------------------------------------*/
/* Exported functions --------------------------------------------------------*/

/** @defgroup OPAMP_Exported_Functions OPAMP Exported Functions
  * @{
  */

#if defined (STM32L471xx) || defined (STM32L475xx) || defined (STM32L476xx) || defined (STM32L485xx) || defined (STM32L486xx) || \
    defined (STM32L496xx) || defined (STM32L4A6xx) || \
    defined (STM32L4P5xx) || defined (STM32L4Q5xx) || \
    defined (STM32L4R5xx) || defined (STM32L4R7xx) || defined (STM32L4R9xx) || defined (STM32L4S5xx) || defined (STM32L4S7xx) || defined (STM32L4S9xx)

/** @addtogroup OPAMPEx_Exported_Functions_Group1
  * @brief    Extended operation functions
  *
@verbatim
 ===============================================================================
              ##### Extended IO operation functions #####
 ===============================================================================
  [..]
      (+) OPAMP Self calibration.

Definition in file stm32l4xx_hal_opamp_ex.c.

Function Documentation

HAL_StatusTypeDef HAL_OPAMPEx_SelfCalibrateAll	(	OPAMP_HandleTypeDef *	hopamp1,
		OPAMP_HandleTypeDef *	hopamp2
	)

Run the self calibration of the 2 OPAMPs in parallel.

Note:: Trimming values (PMOS & NMOS) are updated and user trimming is enabled is calibration is successful.; Calibration is performed in the mode specified in OPAMP init structure (mode normal or low-power). To perform calibration for both modes, repeat this function twice after OPAMP init structure accordingly updated.; Calibration runs about 10 ms (5 dichotomy steps, repeated for P and N transistors: 10 steps with 1 ms for each step).

Parameters:

hopamp1	handle
hopamp2	handle

Return values:

HAL status

Definition at line 88 of file stm32l4xx_hal_opamp_ex.c.

References assert_param, HAL_Delay(), HAL_OPAMP_STATE_READY, __OPAMP_HandleTypeDef::Init, __OPAMP_HandleTypeDef::Instance, IS_OPAMP_POWERMODE, OPAMP_INPUT_NONINVERTING, OPAMP_POWERMODE_LOWPOWER, OPAMP_POWERMODE_NORMALPOWER, OPAMP_STANDALONE_MODE, OPAMP_TRIMMING_DELAY, OPAMP_TRIMMING_USER, OPAMP_InitTypeDef::PowerMode, __OPAMP_HandleTypeDef::State, OPAMP_InitTypeDef::TrimmingValueN, OPAMP_InitTypeDef::TrimmingValueNLowPower, OPAMP_InitTypeDef::TrimmingValueP, OPAMP_InitTypeDef::TrimmingValuePLowPower, and OPAMP_InitTypeDef::UserTrimming.