L4 HAL Drivers

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stm32l4xx_hal_opamp_ex.c File Reference

stm32l4xx_hal_opamp_ex.c File Reference

Extended OPAMP HAL module driver. This file provides firmware functions to manage the following functionalities of the operational amplifier(s)(OPAMP1, OPAMP2 etc) peripheral: + Extended Initialization and de-initialization functions + Extended Peripheral Control functions. More...

Go to the source code of this file.

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)(OPAMP1, OPAMP2 etc) peripheral: + Extended Initialization and de-initialization functions + Extended Peripheral Control functions.

Author:
MCD Application Team
Version:
V1.1.0
Date:
16-September-2015
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/* 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
  * @{
  */

/** @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:
hopamp1handle
hopamp2handle
Return values:
HALstatus

Definition at line 102 of file stm32l4xx_hal_opamp_ex.c.