Modules
	Initialization and de-initialization functions
	Initialization and Configuration functions.

	IO operation functions
	IO operation functions.

	Peripheral Control functions
	Peripheral Control functions.

	Peripheral State functions
	Peripheral State functions.

Functions
HAL_StatusTypeDef	HAL_OPAMP_RegisterCallback (OPAMP_HandleTypeDef *hopamp, HAL_OPAMP_CallbackIDTypeDef CallbackID, pOPAMP_CallbackTypeDef pCallback)
	Register a User OPAMP Callback To be used instead of the weak (surcharged) predefined callback. More...

HAL_StatusTypeDef	HAL_OPAMP_UnRegisterCallback (OPAMP_HandleTypeDef *hopamp, HAL_OPAMP_CallbackIDTypeDef CallbackID)
	Unregister a User OPAMP Callback OPAMP Callback is redirected to the weak (surcharged) predefined callback. More...

Detailed Description

Function Documentation

◆ HAL_OPAMP_RegisterCallback()

HAL_StatusTypeDef HAL_OPAMP_RegisterCallback	(	OPAMP_HandleTypeDef *	hopamp,
		HAL_OPAMP_CallbackIDTypeDef	CallbackID,
		pOPAMP_CallbackTypeDef	pCallback
	)

Register a User OPAMP Callback To be used instead of the weak (surcharged) predefined callback.

Parameters

hopamp	: OPAMP handle
CallbackID	: ID of the callback to be registered This parameter can be one of the following values: HAL_OPAMP_MSPINIT_CB_ID OPAMP MspInit callback ID HAL_OPAMP_MSPDEINIT_CB_ID OPAMP MspDeInit callback ID
pCallback	: pointer to the Callback function

Return values

status

Definition at line 1037 of file stm32l4xx_hal_opamp.c.

 {
   HAL_StatusTypeDef status = HAL_OK;
 
   if(pCallback == NULL)
   {
     return HAL_ERROR;
   }
 
   /* Process locked */
   __HAL_LOCK(hopamp);
 
   if(hopamp->State == HAL_OPAMP_STATE_READY)
   {
     switch (CallbackID)
     {
     case HAL_OPAMP_MSPINIT_CB_ID :
       hopamp->MspInitCallback = pCallback;
       break;
     case HAL_OPAMP_MSPDEINIT_CB_ID :
       hopamp->MspDeInitCallback = pCallback;
       break;
     default :
       /* update return status */
       status =  HAL_ERROR;
       break;
     }
   }
   else if (hopamp->State == HAL_OPAMP_STATE_RESET)
   {
     switch (CallbackID)
     {
     case HAL_OPAMP_MSPINIT_CB_ID :
       hopamp->MspInitCallback = pCallback;
       break;
     case HAL_OPAMP_MSPDEINIT_CB_ID :
       hopamp->MspDeInitCallback = pCallback;
       break;
     default :
       /* update return status */
       status =  HAL_ERROR;
       break;
     }
   }
   else
   {
     /* update return status */
     status =  HAL_ERROR;
   }
 
   /* Release Lock */
   __HAL_UNLOCK(hopamp);
   return status;
 }

◆ HAL_OPAMP_UnRegisterCallback()

HAL_StatusTypeDef HAL_OPAMP_UnRegisterCallback	(	OPAMP_HandleTypeDef *	hopamp,
		HAL_OPAMP_CallbackIDTypeDef	CallbackID
	)

Unregister a User OPAMP Callback OPAMP Callback is redirected to the weak (surcharged) predefined callback.