| /** |
| ****************************************************************************** |
| * @file stm32f3xx_hal_opamp_ex.c |
| * @author MCD Application Team |
| * @version V1.4.0 |
| * @date 16-December-2016 |
| * @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 |
| * |
| @verbatim |
| ****************************************************************************** |
| * @attention |
| * |
| * <h2><center>© COPYRIGHT(c) 2016 STMicroelectronics</center></h2> |
| * |
| * Redistribution and use in source and binary forms, with or without modification, |
| * are permitted provided that the following conditions are met: |
| * 1. Redistributions of source code must retain the above copyright notice, |
| * this list of conditions and the following disclaimer. |
| * 2. Redistributions in binary form must reproduce the above copyright notice, |
| * this list of conditions and the following disclaimer in the documentation |
| * and/or other materials provided with the distribution. |
| * 3. Neither the name of STMicroelectronics nor the names of its contributors |
| * may be used to endorse or promote products derived from this software |
| * without specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" |
| * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
| * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE |
| * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
| * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR |
| * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER |
| * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, |
| * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| * |
| ****************************************************************************** |
| */ |
| |
| /* Includes ------------------------------------------------------------------*/ |
| #include "stm32f3xx_hal.h" |
| |
| /** @addtogroup STM32F3xx_HAL_Driver |
| * @{ |
| */ |
| |
| #ifdef HAL_OPAMP_MODULE_ENABLED |
| |
| #if defined(STM32F302xE) || defined(STM32F303xE) || defined(STM32F398xx) || \ |
| defined(STM32F302xC) || defined(STM32F303xC) || defined(STM32F358xx) || \ |
| defined(STM32F303x8) || defined(STM32F334x8) || defined(STM32F328xx) || \ |
| defined(STM32F301x8) || defined(STM32F302x8) || defined(STM32F318xx) |
| |
| /** @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 = 0U; |
| uint32_t trimmingvaluep1 = 0U; |
| uint32_t trimmingvaluen2 = 0U; |
| uint32_t trimmingvaluep2 = 0U; |
| |
| uint32_t delta; |
| |
| if((hopamp1 == NULL) || (hopamp1->State == HAL_OPAMP_STATE_BUSYLOCKED) || \ |
| (hopamp2 == NULL) || (hopamp2->State == HAL_OPAMP_STATE_BUSYLOCKED)) |
| { |
| status = HAL_ERROR; |
| } |
| |
| if(status == HAL_OK) |
| { |
| /* Check if OPAMP in calibration mode and calibration not yet enable */ |
| if((hopamp1->State == HAL_OPAMP_STATE_READY) && (hopamp2->State == HAL_OPAMP_STATE_READY)) |
| { |
| /* 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); |
| |
| } |
| |
| else |
| { |
| /* At least one OPAMP can not be calibrated */ |
| status = HAL_ERROR; |
| } |
| } |
| |
| 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 = 0U; |
| uint32_t trimmingvaluep1 = 0U; |
| uint32_t trimmingvaluen2 = 0U; |
| uint32_t trimmingvaluep2 = 0U; |
| uint32_t trimmingvaluen3 = 0U; |
| uint32_t trimmingvaluep3 = 0U; |
| uint32_t trimmingvaluen4 = 0U; |
| uint32_t trimmingvaluep4 = 0U; |
| |
| uint32_t delta; |
| |
| if((hopamp1 == NULL) || (hopamp1->State == HAL_OPAMP_STATE_BUSYLOCKED) || \ |
| (hopamp2 == NULL) || (hopamp2->State == HAL_OPAMP_STATE_BUSYLOCKED) || \ |
| (hopamp3 == NULL) || (hopamp3->State == HAL_OPAMP_STATE_BUSYLOCKED) || \ |
| (hopamp4 == NULL) || (hopamp4->State == HAL_OPAMP_STATE_BUSYLOCKED)) |
| { |
| status = HAL_ERROR; |
| } |
| |
| if(status == HAL_OK) |
| { |
| /* Check if OPAMP in calibration mode and calibration not yet enable */ |
| if((hopamp1->State == HAL_OPAMP_STATE_READY) && (hopamp2->State == HAL_OPAMP_STATE_READY) && \ |
| (hopamp3->State == HAL_OPAMP_STATE_READY) && (hopamp4->State == HAL_OPAMP_STATE_READY)) |
| { |
| /* 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); |
| |
| } |
| |
| else |
| { |
| /* At least one OPAMP can not be calibrated */ |
| status = HAL_ERROR; |
| } |
| } |
| |
| return status; |
| } |
| #endif /* STM32F303xE || STM32F398xx || */ |
| /* STM32F303xC || STM32F358xx */ |
| |
| /** |
| * @} |
| */ |
| |
| /** |
| * @} |
| */ |
| |
| /** |
| * @} |
| */ |
| |
| #endif /* STM32F302xE || STM32F303xE || STM32F398xx || */ |
| /* STM32F302xC || STM32F303xC || STM32F358xx || */ |
| /* STM32F303x8 || STM32F334x8 || STM32F328xx || */ |
| /* STM32F301x8 || STM32F302x8 || STM32F318xx */ |
| |
| #endif /* HAL_OPAMP_MODULE_ENABLED */ |
| |
| /** |
| * @} |
| */ |
| |
| /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/ |