From 86608c6770cf08c138a2bdab5855072f64be09ef Mon Sep 17 00:00:00 2001 From: joshua Date: Sat, 30 Dec 2023 23:54:31 -0500 Subject: initial commit --- .../Src/stm32h7xx_hal_opamp_ex.c | 433 +++++++++++++++++++++ 1 file changed, 433 insertions(+) create mode 100644 Drivers/STM32H7xx_HAL_Driver/Src/stm32h7xx_hal_opamp_ex.c (limited to 'Drivers/STM32H7xx_HAL_Driver/Src/stm32h7xx_hal_opamp_ex.c') diff --git a/Drivers/STM32H7xx_HAL_Driver/Src/stm32h7xx_hal_opamp_ex.c b/Drivers/STM32H7xx_HAL_Driver/Src/stm32h7xx_hal_opamp_ex.c new file mode 100644 index 0000000..304b049 --- /dev/null +++ b/Drivers/STM32H7xx_HAL_Driver/Src/stm32h7xx_hal_opamp_ex.c @@ -0,0 +1,433 @@ +/** + ****************************************************************************** + * @file stm32h7xx_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 operational amplifier(s) peripheral: + * + Extended Initialization and de-initialization functions + * + Extended Peripheral Control functions + * + @verbatim + ****************************************************************************** + * @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 "stm32h7xx_hal.h" + +/** @addtogroup STM32H7xx_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 OPAMPEx_Exported_Functions OPAMP Extended Exported Functions + * @{ + */ + +/** @defgroup OPAMPEx_Exported_Functions_Group1 Extended Input and Output operation functions + * @brief Extended operation functions + * +@verbatim + =============================================================================== + ##### Extended IO operation functions ##### + =============================================================================== + [..] + (+) OPAMP Self calibration. + +@endverbatim + * @{ + */ + +/** + * @brief Run the self calibration of 2 OPAMPs in parallel. + * @note Trimming values (PMOS & NMOS) are updated and user trimming is + * enabled is calibration is successful. + * @note 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. + * @param hopamp1 handle + * @param hopamp2 handle + * @retval HAL status + */ + +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; + +/* Selection of register of trimming depending on power mode: OTR or HSOTR */ + __IO uint32_t* tmp_opamp1_reg_trimming; + __IO uint32_t* tmp_opamp2_reg_trimming; + + uint32_t delta; + uint32_t opampmode1; + uint32_t opampmode2; + + 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)); + + assert_param(IS_OPAMP_POWERMODE(hopamp1->Init.PowerMode)); + assert_param(IS_OPAMP_POWERMODE(hopamp2->Init.PowerMode)); + + /* 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); + + /* Save OPAMP mode */ + opampmode1 = READ_BIT(hopamp1->Instance->CSR,OPAMP_CSR_VMSEL); + opampmode2 = READ_BIT(hopamp2->Instance->CSR,OPAMP_CSR_VMSEL); + + /* Use of standalone mode */ + MODIFY_REG(hopamp1->Instance->CSR, OPAMP_CSR_VMSEL, OPAMP_STANDALONE_MODE); + MODIFY_REG(hopamp2->Instance->CSR, OPAMP_CSR_VMSEL, OPAMP_STANDALONE_MODE); + + /* user trimming values are used for offset calibration */ + SET_BIT(hopamp1->Instance->CSR, OPAMP_CSR_USERTRIM); + SET_BIT(hopamp2->Instance->CSR, OPAMP_CSR_USERTRIM); + + /* Select trimming settings depending on power mode */ + if (hopamp1->Init.PowerMode == OPAMP_POWERMODE_NORMAL) + { + tmp_opamp1_reg_trimming = &OPAMP1->OTR; + } + else + { + tmp_opamp1_reg_trimming = &OPAMP1->HSOTR; + } + + if (hopamp2->Init.PowerMode == OPAMP_POWERMODE_NORMAL) + { + tmp_opamp2_reg_trimming = &OPAMP2->OTR; + } + else + { + tmp_opamp2_reg_trimming = &OPAMP2->HSOTR; + } + + /* 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 selected opamp */ + 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 */ + /* OPAMP_POWERMODE_NORMAL */ + MODIFY_REG(*tmp_opamp1_reg_trimming, OPAMP_OTR_TRIMOFFSETN, trimmingvaluen1); + MODIFY_REG(*tmp_opamp2_reg_trimming, OPAMP_OTR_TRIMOFFSETN, trimmingvaluen2); + + /* 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(OPAMP_TRIMMING_DELAY); + + if (READ_BIT(hopamp1->Instance->CSR, OPAMP_CSR_CALOUT)!= 0U) + { + /* OPAMP_CSR_CALOUT is Low try higher trimming */ + trimmingvaluen1 += delta; + } + else + { + /* OPAMP_CSR_CALOUT is High try lower trimming */ + trimmingvaluen1 -= delta; + } + + if (READ_BIT(hopamp2->Instance->CSR, OPAMP_CSR_CALOUT)!= 0U) + { + /* OPAMP_CSR_CALOUT is Low try higher trimming */ + trimmingvaluen2 += delta; + } + else + { + /* OPAMP_CSR_CALOUT is High try lower trimming */ + trimmingvaluen2 -= delta; + } + /* Divide range by 2 to continue dichotomy sweep */ + delta >>= 1U; + } + + /* Still need to check if right calibration is current value or one step below */ + /* Indeed the first value that causes the OUTCAL bit to change from 0 to 1 */ + /* Set candidate trimming */ + MODIFY_REG(*tmp_opamp1_reg_trimming, OPAMP_OTR_TRIMOFFSETN, trimmingvaluen1); + MODIFY_REG(*tmp_opamp2_reg_trimming, OPAMP_OTR_TRIMOFFSETN, trimmingvaluen2); + + /* 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(OPAMP_TRIMMING_DELAY); + + if ((READ_BIT(hopamp1->Instance->CSR, OPAMP_CSR_CALOUT)) != 0U) + { + /* Trimming value is actually one value more */ + trimmingvaluen1++; + MODIFY_REG(*tmp_opamp1_reg_trimming, OPAMP_OTR_TRIMOFFSETN, trimmingvaluen1); + } + + if ((READ_BIT(hopamp2->Instance->CSR, OPAMP_CSR_CALOUT)) != 0U) + { + /* Trimming value is actually one value more */ + trimmingvaluen2++; + MODIFY_REG(*tmp_opamp2_reg_trimming, OPAMP_OTR_TRIMOFFSETN, trimmingvaluen2); + } + + /* 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 */ + /* OPAMP_POWERMODE_NORMAL */ + MODIFY_REG(*tmp_opamp1_reg_trimming, OPAMP_OTR_TRIMOFFSETP, (trimmingvaluep1<Instance->CSR, OPAMP_CSR_CALOUT)!= 0U) + { + /* OPAMP_CSR_CALOUT is Low try higher trimming */ + trimmingvaluep1 += delta; + } + else + { + /* OPAMP_CSR_CALOUT is HIGH try lower trimming */ + trimmingvaluep1 -= delta; + } + + if (READ_BIT(hopamp2->Instance->CSR, OPAMP_CSR_CALOUT)!= 0U) + { + /* OPAMP_CSR_CALOUT is Low try higher trimming */ + trimmingvaluep2 += delta; + } + else + { + /* OPAMP_CSR_CALOUT is High try lower trimming */ + trimmingvaluep2 -= delta; + } + /* Divide range by 2 to continue dichotomy sweep */ + delta >>= 1U; + } + + /* Still need to check if right calibration is current value or one step below */ + /* Indeed the first value that causes the OUTCAL bit to change from 1 to 0 */ + /* Set candidate trimming */ + MODIFY_REG(*tmp_opamp1_reg_trimming, OPAMP_OTR_TRIMOFFSETP, (trimmingvaluep1<Instance->CSR, OPAMP_CSR_CALOUT)!= 0U) + { + /* Trimming value is actually one value more */ + trimmingvaluep1++; + MODIFY_REG(*tmp_opamp1_reg_trimming, OPAMP_OTR_TRIMOFFSETP, (trimmingvaluep1<Instance->CSR, OPAMP_CSR_CALOUT)!= 0U) + { + /* Trimming value is actually one value more */ + trimmingvaluep2++; + MODIFY_REG(*tmp_opamp2_reg_trimming, OPAMP_OTR_TRIMOFFSETP, (trimmingvaluep2<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); + + /* Self calibration is successful */ + /* Store calibration (user trimming) results in init structure. */ + + /* Set user trimming mode */ + hopamp1->Init.UserTrimming = OPAMP_TRIMMING_USER; + hopamp2->Init.UserTrimming = OPAMP_TRIMMING_USER; + + /* Affect calibration parameters depending on mode normal/high speed */ + if (hopamp1->Init.PowerMode != OPAMP_POWERMODE_HIGHSPEED) + { + /* Write calibration result N */ + hopamp1->Init.TrimmingValueN = trimmingvaluen1; + /* Write calibration result P */ + hopamp1->Init.TrimmingValueP = trimmingvaluep1; + } + else + { + /* Write calibration result N */ + hopamp1->Init.TrimmingValueNHighSpeed = trimmingvaluen1; + /* Write calibration result P */ + hopamp1->Init.TrimmingValuePHighSpeed = trimmingvaluep1; + } + + if (hopamp2->Init.PowerMode != OPAMP_POWERMODE_HIGHSPEED) + { + /* Write calibration result N */ + hopamp2->Init.TrimmingValueN = trimmingvaluen2; + /* Write calibration result P */ + hopamp2->Init.TrimmingValueP = trimmingvaluep2; + } + else + { + /* Write calibration result N */ + hopamp2->Init.TrimmingValueNHighSpeed = trimmingvaluen2; + /* Write calibration result P */ + hopamp2->Init.TrimmingValuePHighSpeed = trimmingvaluep2; + + } + /* Update OPAMP state */ + hopamp1->State = HAL_OPAMP_STATE_READY; + hopamp2->State = HAL_OPAMP_STATE_READY; + + /* Restore OPAMP mode after calibration */ + MODIFY_REG(hopamp1->Instance->CSR, OPAMP_CSR_VMSEL, opampmode1); + MODIFY_REG(hopamp2->Instance->CSR, OPAMP_CSR_VMSEL, opampmode2); + } + + return status; +} + +/** + * @} + */ + +/** @defgroup OPAMPEx_Exported_Functions_Group2 Peripheral Control functions + * @brief Peripheral Control functions + * +@verbatim + =============================================================================== + ##### Peripheral Control functions ##### + =============================================================================== + [..] + (+) OPAMP unlock. + +@endverbatim + * @{ + */ + +/** + * @brief Unlock the selected OPAMP configuration. + * @note This function must be called only when OPAMP is in state "locked". + * @param hopamp: OPAMP handle + * @retval HAL status + */ +HAL_StatusTypeDef HAL_OPAMPEx_Unlock(OPAMP_HandleTypeDef* hopamp) +{ + HAL_StatusTypeDef status = HAL_OK; + + /* Check the OPAMP handle allocation */ + /* Check if OPAMP locked */ + if(hopamp == NULL) + { + status = HAL_ERROR; + } + /* Check the OPAMP handle allocation */ + /* Check if OPAMP locked */ + else if(hopamp->State == HAL_OPAMP_STATE_BUSYLOCKED) + { + /* Check the parameter */ + assert_param(IS_OPAMP_ALL_INSTANCE(hopamp->Instance)); + + /* OPAMP state changed to locked */ + hopamp->State = HAL_OPAMP_STATE_BUSY; + } + else + { + status = HAL_ERROR; + } + + return status; +} + +/** + * @} + */ + +/** + * @} + */ + +/** + * @} + */ + +/** + * @} + */ + +#endif /* HAL_OPAMP_MODULE_ENABLED */ + -- cgit v1.2.3