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