716 lines
26 KiB
C
716 lines
26 KiB
C
/**
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******************************************************************************
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* @file stm32f3xx_hal_opamp_ex.c
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* @author MCD Application Team
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* @brief Extended OPAMP HAL module driver.
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*
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* This file provides firmware functions to manage the following
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* functionalities of the operational amplifier(s) peripheral:
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* + Extended Initialization and de-initialization functions
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* + Extended Peripheral Control functions
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*
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@verbatim
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******************************************************************************
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* @attention
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*
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* Copyright (c) 2016 STMicroelectronics.
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* All rights reserved.
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*
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* This software is licensed under terms that can be found in the LICENSE file
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* in the root directory of this software component.
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* If no LICENSE file comes with this software, it is provided AS-IS.
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*
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******************************************************************************
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*/
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/* Includes ------------------------------------------------------------------*/
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#include "stm32f3xx_hal.h"
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/** @addtogroup STM32F3xx_HAL_Driver
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* @{
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*/
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#ifdef HAL_OPAMP_MODULE_ENABLED
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#if defined (OPAMP1) || defined (OPAMP2) || defined (OPAMP3) || defined (OPAMP4)
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/** @defgroup OPAMPEx OPAMPEx
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* @brief OPAMP Extended HAL module driver.
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* @{
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*/
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/* Private typedef -----------------------------------------------------------*/
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/* Private define ------------------------------------------------------------*/
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/* Private macro -------------------------------------------------------------*/
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/* Private variables ---------------------------------------------------------*/
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/* Private function prototypes -----------------------------------------------*/
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/* Exported functions ---------------------------------------------------------*/
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/** @defgroup OPAMPEx_Exported_Functions OPAMP Extended Exported Functions
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* @{
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*/
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/** @defgroup OPAMPEx_Exported_Functions_Group1 Extended Input and Output operation functions
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* @brief Extended Self calibration functions
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*
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@verbatim
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===============================================================================
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##### Extended IO operation functions #####
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===============================================================================
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[..]
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@endverbatim
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* @{
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*/
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#if defined(STM32F302xE) || \
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defined(STM32F302xC)
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/* 2 OPAMPS available */
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/* 2 OPAMPS can be calibrated in parallel */
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/**
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* @brief Run the self calibration of 2 OPAMPs in parallel.
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* @param hopamp1 handle
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* @param hopamp2 handle
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* @retval HAL status
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* @note Updated offset trimming values (PMOS & NMOS), user trimming is enabled
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* @note Calibration runs about 25 ms.
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*/
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HAL_StatusTypeDef HAL_OPAMPEx_SelfCalibrateAll(OPAMP_HandleTypeDef *hopamp1, OPAMP_HandleTypeDef *hopamp2)
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{
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HAL_StatusTypeDef status = HAL_OK;
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uint32_t trimmingvaluen1;
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uint32_t trimmingvaluep1;
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uint32_t trimmingvaluen2;
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uint32_t trimmingvaluep2;
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uint32_t delta;
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if ((hopamp1 == NULL) || (hopamp2 == NULL))
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{
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status = HAL_ERROR;
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}
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/* Check if OPAMP in calibration mode and calibration not yet enable */
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else if (hopamp1->State != HAL_OPAMP_STATE_READY)
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{
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status = HAL_ERROR;
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}
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else if (hopamp2->State != HAL_OPAMP_STATE_READY)
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{
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status = HAL_ERROR;
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}
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else
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{
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/* Check the parameter */
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assert_param(IS_OPAMP_ALL_INSTANCE(hopamp1->Instance));
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assert_param(IS_OPAMP_ALL_INSTANCE(hopamp2->Instance));
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/* Set Calibration mode */
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/* Non-inverting input connected to calibration reference voltage. */
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SET_BIT(hopamp1->Instance->CSR, OPAMP_CSR_FORCEVP);
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SET_BIT(hopamp2->Instance->CSR, OPAMP_CSR_FORCEVP);
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/* user trimming values are used for offset calibration */
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SET_BIT(hopamp1->Instance->CSR, OPAMP_CSR_USERTRIM);
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SET_BIT(hopamp2->Instance->CSR, OPAMP_CSR_USERTRIM);
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/* Enable calibration */
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SET_BIT(hopamp1->Instance->CSR, OPAMP_CSR_CALON);
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SET_BIT(hopamp2->Instance->CSR, OPAMP_CSR_CALON);
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/* 1st calibration - N */
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/* Select 90U% VREF */
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MODIFY_REG(hopamp1->Instance->CSR, OPAMP_CSR_CALSEL, OPAMP_VREF_90VDDA);
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MODIFY_REG(hopamp2->Instance->CSR, OPAMP_CSR_CALSEL, OPAMP_VREF_90VDDA);
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/* Enable the opamps */
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SET_BIT(hopamp1->Instance->CSR, OPAMP_CSR_OPAMPxEN);
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SET_BIT(hopamp2->Instance->CSR, OPAMP_CSR_OPAMPxEN);
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/* Init trimming counter */
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/* Medium value */
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trimmingvaluen1 = 16U;
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trimmingvaluen2 = 16U;
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delta = 8U;
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while (delta != 0U)
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{
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/* Set candidate trimming */
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MODIFY_REG(hopamp1->Instance->CSR, OPAMP_CSR_TRIMOFFSETN, trimmingvaluen1 << OPAMP_INPUT_INVERTING);
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MODIFY_REG(hopamp2->Instance->CSR, OPAMP_CSR_TRIMOFFSETN, trimmingvaluen2 << OPAMP_INPUT_INVERTING);
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/* OFFTRIMmax delay 2 ms as per datasheet (electrical characteristics */
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/* Offset trim time: during calibration, minimum time needed between */
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/* two steps to have 1 mV accuracy */
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HAL_Delay(2U);
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if (hopamp1->Instance->CSR & OPAMP_CSR_OUTCAL)
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{
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/* OPAMP_CSR_OUTCAL is HIGH try higher trimming */
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trimmingvaluen1 += delta;
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}
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else
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{
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/* OPAMP_CSR_OUTCAL is LOW try lower trimming */
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trimmingvaluen1 -= delta;
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}
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if (hopamp2->Instance->CSR & OPAMP_CSR_OUTCAL)
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{
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/* OPAMP_CSR_OUTCAL is HIGH try higher trimming */
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trimmingvaluen2 += delta;
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}
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else
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{
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/* OPAMP_CSR_OUTCAL is LOW try lower trimming */
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trimmingvaluen2 -= delta;
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}
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delta >>= 1U;
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}
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// Still need to check if right calibration is current value or un step below
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// Indeed the first value that causes the OUTCAL bit to change from 1 to 0
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MODIFY_REG(hopamp1->Instance->CSR, OPAMP_CSR_TRIMOFFSETN, trimmingvaluen1 << OPAMP_INPUT_INVERTING);
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MODIFY_REG(hopamp2->Instance->CSR, OPAMP_CSR_TRIMOFFSETN, trimmingvaluen2 << OPAMP_INPUT_INVERTING);
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/* OFFTRIMmax delay 2 ms as per datasheet (electrical characteristics */
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/* Offset trim time: during calibration, minimum time needed between */
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/* two steps to have 1 mV accuracy */
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HAL_Delay(2U);
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if (hopamp1->Instance->CSR & OPAMP_CSR_OUTCAL)
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{
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/* OPAMP_CSR_OUTCAL is actually one value more */
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trimmingvaluen1++;
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/* Set right trimming */
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MODIFY_REG(hopamp1->Instance->CSR, OPAMP_CSR_TRIMOFFSETN, trimmingvaluen1 << OPAMP_INPUT_INVERTING);
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}
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if (hopamp2->Instance->CSR & OPAMP_CSR_OUTCAL)
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{
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/* OPAMP_CSR_OUTCAL is actually one value more */
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trimmingvaluen2++;
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/* Set right trimming */
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MODIFY_REG(hopamp1->Instance->CSR, OPAMP_CSR_TRIMOFFSETN, trimmingvaluen2 << OPAMP_INPUT_INVERTING);
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}
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/* 2nd calibration - P */
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/* Select 10U% VREF */
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MODIFY_REG(hopamp1->Instance->CSR, OPAMP_CSR_CALSEL, OPAMP_VREF_10VDDA);
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MODIFY_REG(hopamp2->Instance->CSR, OPAMP_CSR_CALSEL, OPAMP_VREF_10VDDA);
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/* Init trimming counter */
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/* Medium value */
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trimmingvaluep1 = 16U;
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trimmingvaluep2 = 16U;
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delta = 8U;
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while (delta != 0U)
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{
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/* Set candidate trimming */
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MODIFY_REG(hopamp1->Instance->CSR, OPAMP_CSR_TRIMOFFSETP, trimmingvaluep1 << OPAMP_INPUT_NONINVERTING);
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MODIFY_REG(hopamp2->Instance->CSR, OPAMP_CSR_TRIMOFFSETP, trimmingvaluep2 << OPAMP_INPUT_NONINVERTING);
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/* OFFTRIMmax delay 2 ms as per datasheet (electrical characteristics */
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/* Offset trim time: during calibration, minimum time needed between */
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/* two steps to have 1 mV accuracy */
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HAL_Delay(2U);
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if (hopamp1->Instance->CSR & OPAMP_CSR_OUTCAL)
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{
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/* OPAMP_CSR_OUTCAL is HIGH try higher trimming */
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trimmingvaluep1 += delta;
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}
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else
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{
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trimmingvaluep1 -= delta;
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}
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if (hopamp2->Instance->CSR & OPAMP_CSR_OUTCAL)
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{
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/* OPAMP_CSR_OUTCAL is HIGH try higher trimming */
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trimmingvaluep2 += delta;
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}
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else
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{
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trimmingvaluep2 -= delta;
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}
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delta >>= 1U;
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}
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// Still need to check if right calibration is current value or un step below
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// Indeed the first value that causes the OUTCAL bit to change from 1 to 0
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/* Set candidate trimming */
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MODIFY_REG(hopamp1->Instance->CSR, OPAMP_CSR_TRIMOFFSETP, trimmingvaluep1 << OPAMP_INPUT_NONINVERTING);
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MODIFY_REG(hopamp2->Instance->CSR, OPAMP_CSR_TRIMOFFSETP, trimmingvaluep2 << OPAMP_INPUT_NONINVERTING);
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/* OFFTRIMmax delay 2 ms as per datasheet (electrical characteristics */
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/* Offset trim time: during calibration, minimum time needed between */
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/* two steps to have 1 mV accuracy */
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HAL_Delay(2U);
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if (hopamp1->Instance->CSR & OPAMP_CSR_OUTCAL)
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{
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/* OPAMP_CSR_OUTCAL is actually one value more */
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trimmingvaluep1++;
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/* Set right trimming */
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MODIFY_REG(hopamp1->Instance->CSR, OPAMP_CSR_TRIMOFFSETP, trimmingvaluep1 << OPAMP_INPUT_NONINVERTING);
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}
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if (hopamp2->Instance->CSR & OPAMP_CSR_OUTCAL)
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{
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/* OPAMP_CSR_OUTCAL is actually one value more */
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trimmingvaluep2++;
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/* Set right trimming */
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MODIFY_REG(hopamp2->Instance->CSR, OPAMP_CSR_TRIMOFFSETP, trimmingvaluep2 << OPAMP_INPUT_NONINVERTING);
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}
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/* Disable calibration */
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CLEAR_BIT(hopamp1->Instance->CSR, OPAMP_CSR_CALON);
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CLEAR_BIT(hopamp2->Instance->CSR, OPAMP_CSR_CALON);
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/* Disable the OPAMPs */
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CLEAR_BIT(hopamp1->Instance->CSR, OPAMP_CSR_OPAMPxEN);
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CLEAR_BIT(hopamp2->Instance->CSR, OPAMP_CSR_OPAMPxEN);
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/* Set operating mode back */
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CLEAR_BIT(hopamp1->Instance->CSR, OPAMP_CSR_FORCEVP);
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CLEAR_BIT(hopamp2->Instance->CSR, OPAMP_CSR_FORCEVP);
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/* Self calibration is successful */
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/* Store calibration(user trimming) results in init structure. */
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/* Select user trimming mode */
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/* Write calibration result N */
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hopamp1->Init.TrimmingValueN = trimmingvaluen1;
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hopamp2->Init.TrimmingValueN = trimmingvaluen2;
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/* Write calibration result P */
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hopamp1->Init.TrimmingValueP = trimmingvaluep1;
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hopamp2->Init.TrimmingValueP = trimmingvaluep2;
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/* Calibration */
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hopamp1->Init.UserTrimming = OPAMP_TRIMMING_USER;
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hopamp2->Init.UserTrimming = OPAMP_TRIMMING_USER;
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/* Select user trimming mode */
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/* And updated with calibrated settings */
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hopamp1->Init.UserTrimming = OPAMP_TRIMMING_USER;
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hopamp2->Init.UserTrimming = OPAMP_TRIMMING_USER;
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MODIFY_REG(hopamp1->Instance->CSR, OPAMP_CSR_TRIMOFFSETN, trimmingvaluen1 << OPAMP_INPUT_INVERTING);
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MODIFY_REG(hopamp2->Instance->CSR, OPAMP_CSR_TRIMOFFSETN, trimmingvaluen2 << OPAMP_INPUT_INVERTING);
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MODIFY_REG(hopamp1->Instance->CSR, OPAMP_CSR_TRIMOFFSETP, trimmingvaluep1 << OPAMP_INPUT_NONINVERTING);
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MODIFY_REG(hopamp2->Instance->CSR, OPAMP_CSR_TRIMOFFSETP, trimmingvaluep2 << OPAMP_INPUT_NONINVERTING);
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}
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return status;
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}
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#endif /* STM32F302xE || */
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/* STM32F302xC */
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#if defined(STM32F303xE) || defined(STM32F398xx) || \
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defined(STM32F303xC) || defined(STM32F358xx)
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/* 4 OPAMPS available */
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/* 4 OPAMPS can be calibrated in parallel */
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/**
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* @brief Run the self calibration of 4 OPAMPs in parallel.
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* @param hopamp1 handle
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* @param hopamp2 handle
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* @param hopamp3 handle
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* @param hopamp4 handle
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* @retval HAL status
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* @note Updated offset trimming values (PMOS & NMOS), user trimming is enabled
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* @note Calibration runs about 25 ms.
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*/
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HAL_StatusTypeDef HAL_OPAMPEx_SelfCalibrateAll(OPAMP_HandleTypeDef *hopamp1, OPAMP_HandleTypeDef *hopamp2, OPAMP_HandleTypeDef *hopamp3, OPAMP_HandleTypeDef *hopamp4)
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{
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HAL_StatusTypeDef status = HAL_OK;
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uint32_t trimmingvaluen1;
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uint32_t trimmingvaluep1;
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uint32_t trimmingvaluen2;
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uint32_t trimmingvaluep2;
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uint32_t trimmingvaluen3;
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uint32_t trimmingvaluep3;
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uint32_t trimmingvaluen4;
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uint32_t trimmingvaluep4;
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uint32_t delta;
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if ((hopamp1 == NULL) || (hopamp2 == NULL) || (hopamp3 == NULL) || (hopamp4 == NULL))
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{
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status = HAL_ERROR;
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}
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/* Check if OPAMP in calibration mode and calibration not yet enable */
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else if (hopamp1->State != HAL_OPAMP_STATE_READY)
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{
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status = HAL_ERROR;
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}
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else if (hopamp2->State != HAL_OPAMP_STATE_READY)
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{
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status = HAL_ERROR;
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}
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else if (hopamp3->State != HAL_OPAMP_STATE_READY)
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{
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status = HAL_ERROR;
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}
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else if (hopamp3->State != HAL_OPAMP_STATE_READY)
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{
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status = HAL_ERROR;
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}
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else
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{
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/* Check the parameter */
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assert_param(IS_OPAMP_ALL_INSTANCE(hopamp1->Instance));
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assert_param(IS_OPAMP_ALL_INSTANCE(hopamp2->Instance));
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assert_param(IS_OPAMP_ALL_INSTANCE(hopamp3->Instance));
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assert_param(IS_OPAMP_ALL_INSTANCE(hopamp4->Instance));
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/* Set Calibration mode */
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/* Non-inverting input connected to calibration reference voltage. */
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SET_BIT(hopamp1->Instance->CSR, OPAMP_CSR_FORCEVP);
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SET_BIT(hopamp2->Instance->CSR, OPAMP_CSR_FORCEVP);
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SET_BIT(hopamp3->Instance->CSR, OPAMP_CSR_FORCEVP);
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SET_BIT(hopamp4->Instance->CSR, OPAMP_CSR_FORCEVP);
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/* user trimming values are used for offset calibration */
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SET_BIT(hopamp1->Instance->CSR, OPAMP_CSR_USERTRIM);
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SET_BIT(hopamp2->Instance->CSR, OPAMP_CSR_USERTRIM);
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SET_BIT(hopamp3->Instance->CSR, OPAMP_CSR_USERTRIM);
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SET_BIT(hopamp4->Instance->CSR, OPAMP_CSR_USERTRIM);
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/* Enable calibration */
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SET_BIT(hopamp1->Instance->CSR, OPAMP_CSR_CALON);
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SET_BIT(hopamp2->Instance->CSR, OPAMP_CSR_CALON);
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SET_BIT(hopamp3->Instance->CSR, OPAMP_CSR_CALON);
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SET_BIT(hopamp4->Instance->CSR, OPAMP_CSR_CALON);
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/* 1st calibration - N */
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/* Select 90U% VREF */
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MODIFY_REG(hopamp1->Instance->CSR, OPAMP_CSR_CALSEL, OPAMP_VREF_90VDDA);
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MODIFY_REG(hopamp2->Instance->CSR, OPAMP_CSR_CALSEL, OPAMP_VREF_90VDDA);
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MODIFY_REG(hopamp3->Instance->CSR, OPAMP_CSR_CALSEL, OPAMP_VREF_90VDDA);
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MODIFY_REG(hopamp4->Instance->CSR, OPAMP_CSR_CALSEL, OPAMP_VREF_90VDDA);
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/* Enable the opamps */
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SET_BIT(hopamp1->Instance->CSR, OPAMP_CSR_OPAMPxEN);
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SET_BIT(hopamp2->Instance->CSR, OPAMP_CSR_OPAMPxEN);
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SET_BIT(hopamp3->Instance->CSR, OPAMP_CSR_OPAMPxEN);
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SET_BIT(hopamp4->Instance->CSR, OPAMP_CSR_OPAMPxEN);
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/* Init trimming counter */
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/* Medium value */
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trimmingvaluen1 = 16U;
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trimmingvaluen2 = 16U;
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trimmingvaluen3 = 16U;
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trimmingvaluen4 = 16U;
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delta = 8U;
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while (delta != 0U)
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{
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/* Set candidate trimming */
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MODIFY_REG(hopamp1->Instance->CSR, OPAMP_CSR_TRIMOFFSETN, trimmingvaluen1 << OPAMP_INPUT_INVERTING);
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MODIFY_REG(hopamp2->Instance->CSR, OPAMP_CSR_TRIMOFFSETN, trimmingvaluen2 << OPAMP_INPUT_INVERTING);
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MODIFY_REG(hopamp3->Instance->CSR, OPAMP_CSR_TRIMOFFSETN, trimmingvaluen3 << OPAMP_INPUT_INVERTING);
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MODIFY_REG(hopamp4->Instance->CSR, OPAMP_CSR_TRIMOFFSETN, trimmingvaluen4 << OPAMP_INPUT_INVERTING);
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/* OFFTRIMmax delay 2 ms as per datasheet (electrical characteristics */
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/* Offset trim time: during calibration, minimum time needed between */
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/* two steps to have 1 mV accuracy */
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HAL_Delay(2U);
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if ((hopamp1->Instance->CSR & OPAMP_CSR_OUTCAL) != RESET)
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{
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/* OPAMP_CSR_OUTCAL is HIGH try higher trimming */
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trimmingvaluen1 += delta;
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}
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else
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{
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/* OPAMP_CSR_OUTCAL is LOW try lower trimming */
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trimmingvaluen1 -= delta;
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}
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if ((hopamp2->Instance->CSR & OPAMP_CSR_OUTCAL) != RESET)
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{
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/* OPAMP_CSR_OUTCAL is HIGH try higher trimming */
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trimmingvaluen2 += delta;
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}
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else
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{
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/* OPAMP_CSR_OUTCAL is LOW try lower trimming */
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trimmingvaluen2 -= delta;
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}
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if ((hopamp3->Instance->CSR & OPAMP_CSR_OUTCAL) != RESET)
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{
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/* OPAMP_CSR_OUTCAL is HIGH try higher trimming */
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trimmingvaluen3 += delta;
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}
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else
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{
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/* OPAMP_CSR_OUTCAL is LOW try lower trimming */
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trimmingvaluen3 -= delta;
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}
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if ((hopamp4->Instance->CSR & OPAMP_CSR_OUTCAL) != RESET)
|
|
{
|
|
/* OPAMP_CSR_OUTCAL is HIGH try higher trimming */
|
|
trimmingvaluen4 += delta;
|
|
}
|
|
else
|
|
{
|
|
/* OPAMP_CSR_OUTCAL is LOW try lower trimming */
|
|
trimmingvaluen4 -= delta;
|
|
}
|
|
|
|
delta >>= 1U;
|
|
}
|
|
|
|
/* Still need to check if right calibration is current value or un step below */
|
|
/* Indeed the first value that causes the OUTCAL bit to change from 1 to 0U */
|
|
MODIFY_REG(hopamp1->Instance->CSR, OPAMP_CSR_TRIMOFFSETN, trimmingvaluen1 << OPAMP_INPUT_INVERTING);
|
|
MODIFY_REG(hopamp2->Instance->CSR, OPAMP_CSR_TRIMOFFSETN, trimmingvaluen2 << OPAMP_INPUT_INVERTING);
|
|
MODIFY_REG(hopamp3->Instance->CSR, OPAMP_CSR_TRIMOFFSETN, trimmingvaluen3 << OPAMP_INPUT_INVERTING);
|
|
MODIFY_REG(hopamp4->Instance->CSR, OPAMP_CSR_TRIMOFFSETN, trimmingvaluen4 << OPAMP_INPUT_INVERTING);
|
|
|
|
/* OFFTRIMmax delay 2 ms as per datasheet (electrical characteristics */
|
|
/* Offset trim time: during calibration, minimum time needed between */
|
|
/* two steps to have 1 mV accuracy */
|
|
HAL_Delay(2U);
|
|
|
|
if ((hopamp1->Instance->CSR & OPAMP_CSR_OUTCAL) != RESET)
|
|
{
|
|
/* OPAMP_CSR_OUTCAL is actually one value more */
|
|
trimmingvaluen1++;
|
|
/* Set right trimming */
|
|
MODIFY_REG(hopamp1->Instance->CSR, OPAMP_CSR_TRIMOFFSETN, trimmingvaluen1 << OPAMP_INPUT_INVERTING);
|
|
}
|
|
|
|
if ((hopamp2->Instance->CSR & OPAMP_CSR_OUTCAL) != RESET)
|
|
{
|
|
/* OPAMP_CSR_OUTCAL is actually one value more */
|
|
trimmingvaluen2++;
|
|
/* Set right trimming */
|
|
MODIFY_REG(hopamp2->Instance->CSR, OPAMP_CSR_TRIMOFFSETN, trimmingvaluen2 << OPAMP_INPUT_INVERTING);
|
|
}
|
|
|
|
if ((hopamp3->Instance->CSR & OPAMP_CSR_OUTCAL) != RESET)
|
|
{
|
|
/* OPAMP_CSR_OUTCAL is actually one value more */
|
|
trimmingvaluen3++;
|
|
/* Set right trimming */
|
|
MODIFY_REG(hopamp3->Instance->CSR, OPAMP_CSR_TRIMOFFSETN, trimmingvaluen3 << OPAMP_INPUT_INVERTING);
|
|
}
|
|
|
|
if ((hopamp4->Instance->CSR & OPAMP_CSR_OUTCAL) != RESET)
|
|
{
|
|
/* OPAMP_CSR_OUTCAL is actually one value more */
|
|
trimmingvaluen4++;
|
|
/* Set right trimming */
|
|
MODIFY_REG(hopamp4->Instance->CSR, OPAMP_CSR_TRIMOFFSETN, trimmingvaluen4 << OPAMP_INPUT_INVERTING);
|
|
}
|
|
|
|
/* 2nd calibration - P */
|
|
/* Select 10U% VREF */
|
|
MODIFY_REG(hopamp1->Instance->CSR, OPAMP_CSR_CALSEL, OPAMP_VREF_10VDDA);
|
|
MODIFY_REG(hopamp2->Instance->CSR, OPAMP_CSR_CALSEL, OPAMP_VREF_10VDDA);
|
|
MODIFY_REG(hopamp3->Instance->CSR, OPAMP_CSR_CALSEL, OPAMP_VREF_10VDDA);
|
|
MODIFY_REG(hopamp4->Instance->CSR, OPAMP_CSR_CALSEL, OPAMP_VREF_10VDDA);
|
|
|
|
/* Init trimming counter */
|
|
/* Medium value */
|
|
trimmingvaluep1 = 16U;
|
|
trimmingvaluep2 = 16U;
|
|
trimmingvaluep3 = 16U;
|
|
trimmingvaluep4 = 16U;
|
|
|
|
delta = 8U;
|
|
|
|
while (delta != 0U)
|
|
{
|
|
/* Set candidate trimming */
|
|
MODIFY_REG(hopamp1->Instance->CSR, OPAMP_CSR_TRIMOFFSETP, trimmingvaluep1 << OPAMP_INPUT_NONINVERTING);
|
|
MODIFY_REG(hopamp2->Instance->CSR, OPAMP_CSR_TRIMOFFSETP, trimmingvaluep2 << OPAMP_INPUT_NONINVERTING);
|
|
MODIFY_REG(hopamp3->Instance->CSR, OPAMP_CSR_TRIMOFFSETP, trimmingvaluep3 << OPAMP_INPUT_NONINVERTING);
|
|
MODIFY_REG(hopamp4->Instance->CSR, OPAMP_CSR_TRIMOFFSETP, trimmingvaluep4 << OPAMP_INPUT_NONINVERTING);
|
|
|
|
/* OFFTRIMmax delay 2 ms as per datasheet (electrical characteristics */
|
|
/* Offset trim time: during calibration, minimum time needed between */
|
|
/* two steps to have 1 mV accuracy */
|
|
HAL_Delay(2U);
|
|
|
|
if ((hopamp1->Instance->CSR & OPAMP_CSR_OUTCAL) != RESET)
|
|
{
|
|
/* OPAMP_CSR_OUTCAL is HIGH try higher trimming */
|
|
trimmingvaluep1 += delta;
|
|
}
|
|
else
|
|
{
|
|
trimmingvaluep1 -= delta;
|
|
}
|
|
|
|
if ((hopamp2->Instance->CSR & OPAMP_CSR_OUTCAL) != RESET)
|
|
{
|
|
/* OPAMP_CSR_OUTCAL is HIGH try higher trimming */
|
|
trimmingvaluep2 += delta;
|
|
}
|
|
else
|
|
{
|
|
trimmingvaluep2 -= delta;
|
|
}
|
|
|
|
if ((hopamp3->Instance->CSR & OPAMP_CSR_OUTCAL) != RESET)
|
|
{
|
|
/* OPAMP_CSR_OUTCAL is HIGH try higher trimming */
|
|
trimmingvaluep3 += delta;
|
|
}
|
|
else
|
|
{
|
|
trimmingvaluep3 -= delta;
|
|
}
|
|
|
|
if ((hopamp4->Instance->CSR & OPAMP_CSR_OUTCAL) != RESET)
|
|
{
|
|
/* OPAMP_CSR_OUTCAL is HIGH try higher trimming */
|
|
trimmingvaluep4 += delta;
|
|
}
|
|
else
|
|
{
|
|
trimmingvaluep4 -= delta;
|
|
}
|
|
|
|
delta >>= 1U;
|
|
}
|
|
|
|
/* Still need to check if right calibration is current value or un step below */
|
|
/* Indeed the first value that causes the OUTCAL bit to change from 1 to 0U */
|
|
/* Set candidate trimming */
|
|
MODIFY_REG(hopamp1->Instance->CSR, OPAMP_CSR_TRIMOFFSETP, trimmingvaluep1 << OPAMP_INPUT_NONINVERTING);
|
|
MODIFY_REG(hopamp2->Instance->CSR, OPAMP_CSR_TRIMOFFSETP, trimmingvaluep2 << OPAMP_INPUT_NONINVERTING);
|
|
MODIFY_REG(hopamp3->Instance->CSR, OPAMP_CSR_TRIMOFFSETP, trimmingvaluep3 << OPAMP_INPUT_NONINVERTING);
|
|
MODIFY_REG(hopamp4->Instance->CSR, OPAMP_CSR_TRIMOFFSETP, trimmingvaluep4 << OPAMP_INPUT_NONINVERTING);
|
|
|
|
/* OFFTRIMmax delay 2 ms as per datasheet (electrical characteristics */
|
|
/* Offset trim time: during calibration, minimum time needed between */
|
|
/* two steps to have 1 mV accuracy */
|
|
HAL_Delay(2U);
|
|
|
|
if ((hopamp1->Instance->CSR & OPAMP_CSR_OUTCAL) != RESET)
|
|
{
|
|
/* Trimming value is actually one value more */
|
|
trimmingvaluep1++;
|
|
/* Set right trimming */
|
|
MODIFY_REG(hopamp1->Instance->CSR, OPAMP_CSR_TRIMOFFSETP, trimmingvaluep1 << OPAMP_INPUT_NONINVERTING);
|
|
}
|
|
|
|
if ((hopamp2->Instance->CSR & OPAMP_CSR_OUTCAL) != RESET)
|
|
{
|
|
/* Trimming value is actually one value more */
|
|
trimmingvaluep2++;
|
|
/* Set right trimming */
|
|
MODIFY_REG(hopamp2->Instance->CSR, OPAMP_CSR_TRIMOFFSETP, trimmingvaluep2 << OPAMP_INPUT_NONINVERTING);
|
|
}
|
|
|
|
if ((hopamp3->Instance->CSR & OPAMP_CSR_OUTCAL) != RESET)
|
|
{
|
|
/* Trimming value is actually one value more */
|
|
trimmingvaluep3++;
|
|
/* Set right trimming */
|
|
MODIFY_REG(hopamp3->Instance->CSR, OPAMP_CSR_TRIMOFFSETP, trimmingvaluep3 << OPAMP_INPUT_NONINVERTING);
|
|
}
|
|
|
|
if ((hopamp4->Instance->CSR & OPAMP_CSR_OUTCAL) != RESET)
|
|
{
|
|
/* Trimming value is actually one value more */
|
|
trimmingvaluep4++;
|
|
/* Set right trimming */
|
|
MODIFY_REG(hopamp4->Instance->CSR, OPAMP_CSR_TRIMOFFSETP, trimmingvaluep4 << OPAMP_INPUT_NONINVERTING);
|
|
}
|
|
|
|
/* Disable calibration */
|
|
CLEAR_BIT(hopamp1->Instance->CSR, OPAMP_CSR_CALON);
|
|
CLEAR_BIT(hopamp2->Instance->CSR, OPAMP_CSR_CALON);
|
|
CLEAR_BIT(hopamp3->Instance->CSR, OPAMP_CSR_CALON);
|
|
CLEAR_BIT(hopamp4->Instance->CSR, OPAMP_CSR_CALON);
|
|
|
|
/* Disable the OPAMPs */
|
|
CLEAR_BIT(hopamp1->Instance->CSR, OPAMP_CSR_OPAMPxEN);
|
|
CLEAR_BIT(hopamp2->Instance->CSR, OPAMP_CSR_OPAMPxEN);
|
|
CLEAR_BIT(hopamp3->Instance->CSR, OPAMP_CSR_OPAMPxEN);
|
|
CLEAR_BIT(hopamp4->Instance->CSR, OPAMP_CSR_OPAMPxEN);
|
|
|
|
/* Set normal operating mode back */
|
|
CLEAR_BIT(hopamp1->Instance->CSR, OPAMP_CSR_FORCEVP);
|
|
CLEAR_BIT(hopamp2->Instance->CSR, OPAMP_CSR_FORCEVP);
|
|
CLEAR_BIT(hopamp3->Instance->CSR, OPAMP_CSR_FORCEVP);
|
|
CLEAR_BIT(hopamp4->Instance->CSR, OPAMP_CSR_FORCEVP);
|
|
|
|
/* Self calibration is successful */
|
|
/* Store calibration(user trimming) results in init structure. */
|
|
/* Select user trimming mode */
|
|
|
|
/* Write calibration result N */
|
|
hopamp1->Init.TrimmingValueN = trimmingvaluen1;
|
|
hopamp2->Init.TrimmingValueN = trimmingvaluen2;
|
|
hopamp3->Init.TrimmingValueN = trimmingvaluen3;
|
|
hopamp4->Init.TrimmingValueN = trimmingvaluen4;
|
|
|
|
/* Write calibration result P */
|
|
hopamp1->Init.TrimmingValueP = trimmingvaluep1;
|
|
hopamp2->Init.TrimmingValueP = trimmingvaluep2;
|
|
hopamp3->Init.TrimmingValueP = trimmingvaluep3;
|
|
hopamp4->Init.TrimmingValueP = trimmingvaluep4;
|
|
|
|
/* Select user trimming mode */
|
|
/* And updated with calibrated settings */
|
|
hopamp1->Init.UserTrimming = OPAMP_TRIMMING_USER;
|
|
hopamp2->Init.UserTrimming = OPAMP_TRIMMING_USER;
|
|
hopamp3->Init.UserTrimming = OPAMP_TRIMMING_USER;
|
|
hopamp4->Init.UserTrimming = OPAMP_TRIMMING_USER;
|
|
|
|
MODIFY_REG(hopamp1->Instance->CSR, OPAMP_CSR_TRIMOFFSETN, trimmingvaluen1 << OPAMP_INPUT_INVERTING);
|
|
MODIFY_REG(hopamp2->Instance->CSR, OPAMP_CSR_TRIMOFFSETN, trimmingvaluen2 << OPAMP_INPUT_INVERTING);
|
|
MODIFY_REG(hopamp3->Instance->CSR, OPAMP_CSR_TRIMOFFSETN, trimmingvaluen3 << OPAMP_INPUT_INVERTING);
|
|
MODIFY_REG(hopamp4->Instance->CSR, OPAMP_CSR_TRIMOFFSETN, trimmingvaluen4 << OPAMP_INPUT_INVERTING);
|
|
|
|
MODIFY_REG(hopamp1->Instance->CSR, OPAMP_CSR_TRIMOFFSETP, trimmingvaluep1 << OPAMP_INPUT_NONINVERTING);
|
|
MODIFY_REG(hopamp2->Instance->CSR, OPAMP_CSR_TRIMOFFSETP, trimmingvaluep2 << OPAMP_INPUT_NONINVERTING);
|
|
MODIFY_REG(hopamp3->Instance->CSR, OPAMP_CSR_TRIMOFFSETP, trimmingvaluep3 << OPAMP_INPUT_NONINVERTING);
|
|
MODIFY_REG(hopamp4->Instance->CSR, OPAMP_CSR_TRIMOFFSETP, trimmingvaluep4 << OPAMP_INPUT_NONINVERTING);
|
|
}
|
|
return status;
|
|
}
|
|
#endif /* STM32F303xE || STM32F398xx || */
|
|
/* STM32F303xC || STM32F358xx */
|
|
|
|
/**
|
|
* @}
|
|
*/
|
|
|
|
/**
|
|
* @}
|
|
*/
|
|
|
|
/**
|
|
* @}
|
|
*/
|
|
|
|
#endif /* OPAMP1 || OPAMP2 || OPAMP3 || OPAMP4 */
|
|
|
|
#endif /* HAL_OPAMP_MODULE_ENABLED */
|
|
|
|
/**
|
|
* @}
|
|
*/
|
|
|