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Diff: targets/cmsis/TARGET_STM/TARGET_NUCLEO_L152RE/stm32l1xx_hal_opamp_ex.c
- Revision:
- 394:83f921546702
- Parent:
- 393:17d2d502961d
- Child:
- 395:bfce16e86ea4
--- a/targets/cmsis/TARGET_STM/TARGET_NUCLEO_L152RE/stm32l1xx_hal_opamp_ex.c Fri Nov 07 12:00:11 2014 +0000
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,757 +0,0 @@
-/**
- ******************************************************************************
- * @file stm32l1xx_hal_opamp_ex.c
- * @author MCD Application Team
- * @version V1.0.0
- * @date 5-September-2014
- * @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) 2014 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 "stm32l1xx_hal.h"
-
-/** @addtogroup STM32L1xx_HAL_Driver
- * @{
- */
-
-/** @defgroup OPAMPEx OPAMPEx
- * @brief OPAMP Extended HAL module driver.
- * @{
- */
-
-#ifdef HAL_OPAMP_MODULE_ENABLED
-
-#if defined (STM32L151xCA) || defined (STM32L151xD) || defined (STM32L152xCA) || defined (STM32L152xD) || defined (STM32L162xCA) || defined (STM32L162xD) || defined (STM32L151xE) || defined (STM32L152xE) || defined (STM32L162xE) || defined (STM32L162xC) || defined (STM32L152xC) || defined (STM32L151xC)
-
-/* Private typedef -----------------------------------------------------------*/
-/* Private define ------------------------------------------------------------*/
-/* Private macro -------------------------------------------------------------*/
-/* Private variables ---------------------------------------------------------*/
-/* Private function prototypes -----------------------------------------------*/
-/* Private functions ---------------------------------------------------------*/
-
-/** @addtogroup OPAMPEx_Exported_Functions OPAMPEx Exported Functions
- * @{
- */
-
-/** @addtogroup OPAMPEx_Exported_Functions_Group1
- * @brief Extended operation functions
- *
-@verbatim
- ===============================================================================
- ##### Extended IO operation functions #####
- ===============================================================================
- [..]
- (+) OPAMP Self calibration.
-
-@endverbatim
- * @{
- */
-
-#if defined (STM32L151xD) || defined (STM32L152xD) || defined (STM32L162xD)
-
-/* 3 OPAMPS available */
-/* 3 OPAMPS can be calibrated in parallel */
-
-/**
- * @brief Run the self calibration of the 3 OPAMPs in parallel.
- * @note Trimming values (PMOS & NMOS) are updated and user trimming is
- * enabled is calibration is succesful.
- * @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.
- * @note Calibration runs about 10 ms (5 dichotmy steps, repeated for P
- * and N transistors: 10 steps with 1 ms for each step).
- * @param hopamp1 handle
- * @param hopamp2 handle
- * @param hopamp3 handle
- * @retval HAL status
- */
-HAL_StatusTypeDef HAL_OPAMPEx_SelfCalibrateAll(OPAMP_HandleTypeDef *hopamp1, OPAMP_HandleTypeDef *hopamp2, OPAMP_HandleTypeDef *hopamp3)
-{
- HAL_StatusTypeDef status = HAL_OK;
-
- uint32_t* opamp1_trimmingvalue = 0;
- uint32_t opamp1_trimmingvaluen = 0;
- uint32_t opamp1_trimmingvaluep = 0;
-
- uint32_t* opamp2_trimmingvalue = 0;
- uint32_t opamp2_trimmingvaluen = 0;
- uint32_t opamp2_trimmingvaluep = 0;
-
- uint32_t* opamp3_trimmingvalue = 0;
- uint32_t opamp3_trimmingvaluen = 0;
- uint32_t opamp3_trimmingvaluep = 0;
-
- uint32_t trimming_diff_pair = 0; /* Selection of differential transistors pair high or low */
-
- __IO uint32_t* tmp_opamp1_reg_trimming; /* Selection of register of trimming depending on power mode: OTR or LPOTR */
- __IO uint32_t* tmp_opamp2_reg_trimming;
- __IO uint32_t* tmp_opamp3_reg_trimming;
- uint32_t tmp_opamp1_otr_otuser = 0; /* Selection of bit OPAMP_OTR_OT_USER depending on trimming register pointed: OTR or LPOTR */
- uint32_t tmp_opamp2_otr_otuser = 0;
- uint32_t tmp_opamp3_otr_otuser = 0;
-
- uint32_t tmp_Opa1calout_DefaultSate = 0; /* Bit OPAMP_CSR_OPA1CALOUT default state when trimming value is 00000b. Used to detect the bit toggling */
- uint32_t tmp_Opa2calout_DefaultSate = 0; /* Bit OPAMP_CSR_OPA2CALOUT default state when trimming value is 00000b. Used to detect the bit toggling */
- uint32_t tmp_Opa3calout_DefaultSate = 0; /* Bit OPAMP_CSR_OPA3CALOUT default state when trimming value is 00000b. Used to detect the bit toggling */
-
- uint32_t tmp_OpaxSwitchesContextBackup = 0;
-
- uint8_t trimming_diff_pair_iteration_count = 0;
- uint8_t delta = 0;
-
-
- /* Check the OPAMP handle allocation */
- /* Check if OPAMP locked */
- if((hopamp1 == HAL_NULL) || (hopamp1->State == HAL_OPAMP_STATE_BUSYLOCKED) ||
- (hopamp2 == HAL_NULL) || (hopamp2->State == HAL_OPAMP_STATE_BUSYLOCKED) ||
- (hopamp3 == HAL_NULL) || (hopamp3->State == HAL_OPAMP_STATE_BUSYLOCKED) )
- {
- status = HAL_ERROR;
- }
- else
- {
-
- /* 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) )
- {
- /* 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_POWERMODE(hopamp1->Init.PowerMode));
- assert_param(IS_OPAMP_POWERMODE(hopamp2->Init.PowerMode));
- assert_param(IS_OPAMP_POWERMODE(hopamp3->Init.PowerMode));
-
- /* Update OPAMP state */
- hopamp1->State = HAL_OPAMP_STATE_CALIBBUSY;
- hopamp2->State = HAL_OPAMP_STATE_CALIBBUSY;
- hopamp3->State = HAL_OPAMP_STATE_CALIBBUSY;
-
- /* Backup of switches configuration to restore it at the end of the */
- /* calibration. */
- tmp_OpaxSwitchesContextBackup = READ_BIT(OPAMP->CSR, OPAMP_CSR_ALL_SWITCHES_ALL_OPAMPS);
-
- /* Open all switches on non-inverting input, inverting input and output */
- /* feedback. */
- CLEAR_BIT(OPAMP->CSR, OPAMP_CSR_ALL_SWITCHES_ALL_OPAMPS);
-
- /* Set calibration mode to user programmed trimming values */
- SET_BIT(OPAMP->OTR, OPAMP_OTR_OT_USER);
-
- /* Select trimming settings depending on power mode */
- if (hopamp1->Init.PowerMode == OPAMP_POWERMODE_NORMAL)
- {
- tmp_opamp1_otr_otuser = OPAMP_OTR_OT_USER;
- tmp_opamp1_reg_trimming = &OPAMP->OTR;
- }
- else
- {
- tmp_opamp1_otr_otuser = 0x00000000;
- tmp_opamp1_reg_trimming = &OPAMP->LPOTR;
- }
-
- if (hopamp2->Init.PowerMode == OPAMP_POWERMODE_NORMAL)
- {
- tmp_opamp2_otr_otuser = OPAMP_OTR_OT_USER;
- tmp_opamp2_reg_trimming = &OPAMP->OTR;
- }
- else
- {
- tmp_opamp2_otr_otuser = 0x00000000;
- tmp_opamp2_reg_trimming = &OPAMP->LPOTR;
- }
-
- if (hopamp3->Init.PowerMode == OPAMP_POWERMODE_NORMAL)
- {
- tmp_opamp3_otr_otuser = OPAMP_OTR_OT_USER;
- tmp_opamp3_reg_trimming = &OPAMP->OTR;
- }
- else
- {
- tmp_opamp3_otr_otuser = 0x00000000;
- tmp_opamp3_reg_trimming = &OPAMP->LPOTR;
- }
-
- /* Enable the selected opamp */
- CLEAR_BIT (OPAMP->CSR, OPAMP_CSR_OPAXPD_ALL);
-
- /* Perform trimming for both differential transistors pair high and low */
- for (trimming_diff_pair_iteration_count = 0; trimming_diff_pair_iteration_count <=1; trimming_diff_pair_iteration_count++)
- {
- if (trimming_diff_pair_iteration_count == 0)
- {
- /* Calibration of transistors differential pair high (NMOS) */
- trimming_diff_pair = OPAMP_FACTORYTRIMMING_N;
- opamp1_trimmingvalue = &opamp1_trimmingvaluen;
- opamp2_trimmingvalue = &opamp2_trimmingvaluen;
- opamp3_trimmingvalue = &opamp3_trimmingvaluen;
-
- /* Set bit OPAMP_CSR_OPAXCALOUT default state when trimming value */
- /* is 00000b. Used to detect the bit toggling during trimming. */
- tmp_Opa1calout_DefaultSate = RESET;
- tmp_Opa2calout_DefaultSate = RESET;
- tmp_Opa3calout_DefaultSate = RESET;
-
- /* Enable calibration for N differential pair */
- MODIFY_REG(OPAMP->CSR, OPAMP_CSR_OPAXCAL_L_ALL,
- OPAMP_CSR_OPAXCAL_H_ALL);
- }
- else /* (trimming_diff_pair_iteration_count == 1) */
- {
- /* Calibration of transistors differential pair low (PMOS) */
- trimming_diff_pair = OPAMP_FACTORYTRIMMING_P;
- opamp1_trimmingvalue = &opamp1_trimmingvaluep;
- opamp2_trimmingvalue = &opamp2_trimmingvaluep;
- opamp3_trimmingvalue = &opamp3_trimmingvaluep;
-
- /* Set bit OPAMP_CSR_OPAXCALOUT default state when trimming value */
- /* is 00000b. Used to detect the bit toggling during trimming. */
- tmp_Opa1calout_DefaultSate = __OPAMP_CSR_OPAXCALOUT(hopamp1);
- tmp_Opa2calout_DefaultSate = __OPAMP_CSR_OPAXCALOUT(hopamp2);
- tmp_Opa3calout_DefaultSate = __OPAMP_CSR_OPAXCALOUT(hopamp3);
-
- /* Enable calibration for P differential pair */
- MODIFY_REG(OPAMP->CSR, OPAMP_CSR_OPAXCAL_H_ALL,
- OPAMP_CSR_OPAXCAL_L_ALL);
- }
-
-
- /* Perform calibration parameter search by dichotomy sweep */
- /* - Delta initial value 16: for 5 dichotomy steps: 16 for the */
- /* initial range, then successive delta sweeps (8, 4, 2, 1). */
- /* can extend the search range to +/- 15 units. */
- /* - Trimming initial value 15: search range will go from 0 to 30 */
- /* (Trimming value 31 is forbidden). */
- *opamp1_trimmingvalue = 15;
- *opamp2_trimmingvalue = 15;
- *opamp3_trimmingvalue = 15;
- delta = 16;
-
- while (delta != 0)
- {
- /* Set candidate trimming */
-
- MODIFY_REG(*tmp_opamp1_reg_trimming, __OPAMP_OFFSET_TRIM_SET(hopamp1, trimming_diff_pair, OPAMP_TRIM_VALUE_MASK) ,
- __OPAMP_OFFSET_TRIM_SET(hopamp1, trimming_diff_pair, *opamp1_trimmingvalue) | tmp_opamp1_otr_otuser);
-
- MODIFY_REG(*tmp_opamp2_reg_trimming, __OPAMP_OFFSET_TRIM_SET(hopamp2, trimming_diff_pair, OPAMP_TRIM_VALUE_MASK) ,
- __OPAMP_OFFSET_TRIM_SET(hopamp2, trimming_diff_pair, *opamp2_trimmingvalue) | tmp_opamp2_otr_otuser);
-
- MODIFY_REG(*tmp_opamp3_reg_trimming, __OPAMP_OFFSET_TRIM_SET(hopamp3, trimming_diff_pair, OPAMP_TRIM_VALUE_MASK) ,
- __OPAMP_OFFSET_TRIM_SET(hopamp3, trimming_diff_pair, *opamp3_trimmingvalue) | tmp_opamp3_otr_otuser);
-
-
- /* Offset trimming time: during calibration, minimum time needed */
- /* between two steps to have 1 mV accuracy. */
- HAL_Delay(OPAMP_TRIMMING_DELAY);
-
- /* Divide range by 2 to continue dichotomy sweep */
- delta >>= 1;
-
- /* Set trimming values for next iteration in function of trimming */
- /* result toggle (versus initial state). */
- /* Trimming values update with dichotomy delta of previous */
- /* iteration. */
- if (READ_BIT(OPAMP->CSR, __OPAMP_CSR_OPAXCALOUT(hopamp1)) != tmp_Opa1calout_DefaultSate)
- {
- /* If calibration output is has toggled, try lower trimming */
- *opamp1_trimmingvalue -= delta;
- }
- else
- {
- /* If calibration output is has not toggled, try higher trimming */
- *opamp1_trimmingvalue += delta;
- }
-
- /* Set trimming values for next iteration in function of trimming */
- /* result toggle (versus initial state). */
- /* Trimming values update with dichotomy delta of previous */
- /* iteration. */
- if (READ_BIT(OPAMP->CSR, __OPAMP_CSR_OPAXCALOUT(hopamp2)) != tmp_Opa2calout_DefaultSate)
- {
- /* If calibration output is has toggled, try lower trimming */
- *opamp2_trimmingvalue -= delta;
- }
- else
- {
- /* If calibration output is has not toggled, try higher trimming */
- *opamp2_trimmingvalue += delta;
- }
-
- /* Set trimming values for next iteration in function of trimming */
- /* result toggle (versus initial state). */
- /* Trimming values update with dichotomy delta of previous */
- /* iteration. */
- if (READ_BIT(OPAMP->CSR, __OPAMP_CSR_OPAXCALOUT(hopamp3)) != tmp_Opa3calout_DefaultSate)
- {
- /* If calibration output is has toggled, try lower trimming */
- *opamp3_trimmingvalue -= delta;
- }
- else
- {
- /* If calibration output is has not toggled, try higher trimming */
- *opamp3_trimmingvalue += delta;
- }
-
- }
- }
-
-
- /* Disable calibration for P and N differential pairs */
- /* Disable the selected opamp */
- CLEAR_BIT (OPAMP->CSR, (OPAMP_CSR_OPAXCAL_H_ALL |
- OPAMP_CSR_OPAXCAL_L_ALL |
- OPAMP_CSR_OPAXPD_ALL ));
-
- /* Backup of switches configuration to restore it at the end of the */
- /* calibration. */
- SET_BIT(OPAMP->CSR, tmp_OpaxSwitchesContextBackup);
-
- /* 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;
- hopamp3->Init.UserTrimming = OPAMP_TRIMMING_USER;
-
- /* Affect calibration parameters depending on mode normal/low power */
- if (hopamp1->Init.PowerMode != OPAMP_POWERMODE_LOWPOWER)
- {
- /* Write calibration result N */
- hopamp1->Init.TrimmingValueN = opamp1_trimmingvaluen;
- /* Write calibration result P */
- hopamp1->Init.TrimmingValueP = opamp1_trimmingvaluep;
- }
- else
- {
- /* Write calibration result N */
- hopamp1->Init.TrimmingValueNLowPower = opamp1_trimmingvaluen;
- /* Write calibration result P */
- hopamp1->Init.TrimmingValuePLowPower = opamp1_trimmingvaluep;
- }
-
- if (hopamp2->Init.PowerMode != OPAMP_POWERMODE_LOWPOWER)
- {
- /* Write calibration result N */
- hopamp2->Init.TrimmingValueN = opamp2_trimmingvaluen;
- /* Write calibration result P */
- hopamp2->Init.TrimmingValueP = opamp2_trimmingvaluep;
- }
- else
- {
- /* Write calibration result N */
- hopamp2->Init.TrimmingValueNLowPower = opamp2_trimmingvaluen;
- /* Write calibration result P */
- hopamp2->Init.TrimmingValuePLowPower = opamp2_trimmingvaluep;
- }
-
- if (hopamp3->Init.PowerMode != OPAMP_POWERMODE_LOWPOWER)
- {
- /* Write calibration result N */
- hopamp3->Init.TrimmingValueN = opamp3_trimmingvaluen;
- /* Write calibration result P */
- hopamp3->Init.TrimmingValueP = opamp3_trimmingvaluep;
- }
- else
- {
- /* Write calibration result N */
- hopamp3->Init.TrimmingValueNLowPower = opamp3_trimmingvaluen;
- /* Write calibration result P */
- hopamp3->Init.TrimmingValuePLowPower = opamp3_trimmingvaluep;
- }
-
- /* Update OPAMP state */
- hopamp1->State = HAL_OPAMP_STATE_READY;
- hopamp2->State = HAL_OPAMP_STATE_READY;
- hopamp3->State = HAL_OPAMP_STATE_READY;
-
- }
- else
- {
- /* OPAMP can not be calibrated from this mode */
- status = HAL_ERROR;
- }
- }
-
- return status;
-}
-
-#else
-
-/* 2 OPAMPS available */
-/* 2 OPAMPS can be calibrated in parallel */
-
-/**
- * @brief Run the self calibration of the 2 OPAMPs in parallel.
- * @note Trimming values (PMOS & NMOS) are updated and user trimming is
- * enabled is calibration is succesful.
- * @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.
- * @note Calibration runs about 10 ms (5 dichotmy steps, repeated for P
- * and N transistors: 10 steps with 1 ms for each step).
- * @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* opamp1_trimmingvalue = 0;
- uint32_t opamp1_trimmingvaluen = 0;
- uint32_t opamp1_trimmingvaluep = 0;
-
- uint32_t* opamp2_trimmingvalue = 0;
- uint32_t opamp2_trimmingvaluen = 0;
- uint32_t opamp2_trimmingvaluep = 0;
-
- uint32_t trimming_diff_pair = 0; /* Selection of differential transistors pair high or low */
-
- __IO uint32_t* tmp_opamp1_reg_trimming; /* Selection of register of trimming depending on power mode: OTR or LPOTR */
- __IO uint32_t* tmp_opamp2_reg_trimming;
- uint32_t tmp_opamp1_otr_otuser = 0; /* Selection of bit OPAMP_OTR_OT_USER depending on trimming register pointed: OTR or LPOTR */
- uint32_t tmp_opamp2_otr_otuser = 0;
-
- uint32_t tmp_Opa1calout_DefaultSate = 0; /* Bit OPAMP_CSR_OPA1CALOUT default state when trimming value is 00000b. Used to detect the bit toggling */
- uint32_t tmp_Opa2calout_DefaultSate = 0; /* Bit OPAMP_CSR_OPA2CALOUT default state when trimming value is 00000b. Used to detect the bit toggling */
-
- uint32_t tmp_OpaxSwitchesContextBackup = 0;
-
- uint8_t trimming_diff_pair_iteration_count = 0;
- uint8_t delta = 0;
-
-
- /* Check the OPAMP handle allocation */
- /* Check if OPAMP locked */
- if((hopamp1 == HAL_NULL) || (hopamp1->State == HAL_OPAMP_STATE_BUSYLOCKED) ||
- (hopamp2 == HAL_NULL) || (hopamp2->State == HAL_OPAMP_STATE_BUSYLOCKED) )
- {
- status = HAL_ERROR;
- }
- else
- {
-
- /* 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));
- assert_param(IS_OPAMP_POWERMODE(hopamp1->Init.PowerMode));
- assert_param(IS_OPAMP_POWERMODE(hopamp2->Init.PowerMode));
-
- /* Update OPAMP state */
- hopamp1->State = HAL_OPAMP_STATE_CALIBBUSY;
- hopamp2->State = HAL_OPAMP_STATE_CALIBBUSY;
-
- /* Backup of switches configuration to restore it at the end of the */
- /* calibration. */
- tmp_OpaxSwitchesContextBackup = READ_BIT(OPAMP->CSR, OPAMP_CSR_ALL_SWITCHES_ALL_OPAMPS);
-
- /* Open all switches on non-inverting input, inverting input and output */
- /* feedback. */
- CLEAR_BIT(OPAMP->CSR, OPAMP_CSR_ALL_SWITCHES_ALL_OPAMPS);
-
- /* Set calibration mode to user programmed trimming values */
- SET_BIT(OPAMP->OTR, OPAMP_OTR_OT_USER);
-
- /* Select trimming settings depending on power mode */
- if (hopamp1->Init.PowerMode == OPAMP_POWERMODE_NORMAL)
- {
- tmp_opamp1_otr_otuser = OPAMP_OTR_OT_USER;
- tmp_opamp1_reg_trimming = &OPAMP->OTR;
- }
- else
- {
- tmp_opamp1_otr_otuser = 0x00000000;
- tmp_opamp1_reg_trimming = &OPAMP->LPOTR;
- }
-
- if (hopamp2->Init.PowerMode == OPAMP_POWERMODE_NORMAL)
- {
- tmp_opamp2_otr_otuser = OPAMP_OTR_OT_USER;
- tmp_opamp2_reg_trimming = &OPAMP->OTR;
- }
- else
- {
- tmp_opamp2_otr_otuser = 0x00000000;
- tmp_opamp2_reg_trimming = &OPAMP->LPOTR;
- }
-
- /* Enable the selected opamp */
- CLEAR_BIT (OPAMP->CSR, OPAMP_CSR_OPAXPD_ALL);
-
- /* Perform trimming for both differential transistors pair high and low */
- for (trimming_diff_pair_iteration_count = 0; trimming_diff_pair_iteration_count <=1; trimming_diff_pair_iteration_count++)
- {
- if (trimming_diff_pair_iteration_count == 0)
- {
- /* Calibration of transistors differential pair high (NMOS) */
- trimming_diff_pair = OPAMP_FACTORYTRIMMING_N;
- opamp1_trimmingvalue = &opamp1_trimmingvaluen;
- opamp2_trimmingvalue = &opamp2_trimmingvaluen;
-
- /* Set bit OPAMP_CSR_OPAXCALOUT default state when trimming value */
- /* is 00000b. Used to detect the bit toggling during trimming. */
- tmp_Opa1calout_DefaultSate = RESET;
- tmp_Opa2calout_DefaultSate = RESET;
-
- /* Enable calibration for N differential pair */
- MODIFY_REG(OPAMP->CSR, OPAMP_CSR_OPAXCAL_L_ALL,
- OPAMP_CSR_OPAXCAL_H_ALL);
- }
- else /* (trimming_diff_pair_iteration_count == 1) */
- {
- /* Calibration of transistors differential pair low (PMOS) */
- trimming_diff_pair = OPAMP_FACTORYTRIMMING_P;
- opamp1_trimmingvalue = &opamp1_trimmingvaluep;
- opamp2_trimmingvalue = &opamp2_trimmingvaluep;
-
- /* Set bit OPAMP_CSR_OPAXCALOUT default state when trimming value */
- /* is 00000b. Used to detect the bit toggling during trimming. */
- tmp_Opa1calout_DefaultSate = __OPAMP_CSR_OPAXCALOUT(hopamp1);
- tmp_Opa2calout_DefaultSate = __OPAMP_CSR_OPAXCALOUT(hopamp2);
-
- /* Enable calibration for P differential pair */
- MODIFY_REG(OPAMP->CSR, OPAMP_CSR_OPAXCAL_H_ALL,
- OPAMP_CSR_OPAXCAL_L_ALL);
- }
-
-
- /* Perform calibration parameter search by dichotomy sweep */
- /* - Delta initial value 16: for 5 dichotomy steps: 16 for the */
- /* initial range, then successive delta sweeps (8, 4, 2, 1). */
- /* can extend the search range to +/- 15 units. */
- /* - Trimming initial value 15: search range will go from 0 to 30 */
- /* (Trimming value 31 is forbidden). */
- *opamp1_trimmingvalue = 15;
- *opamp2_trimmingvalue = 15;
- delta = 16;
-
- while (delta != 0)
- {
- /* Set candidate trimming */
-
- MODIFY_REG(*tmp_opamp1_reg_trimming, __OPAMP_OFFSET_TRIM_SET(hopamp1, trimming_diff_pair, OPAMP_TRIM_VALUE_MASK) ,
- __OPAMP_OFFSET_TRIM_SET(hopamp1, trimming_diff_pair, *opamp1_trimmingvalue) | tmp_opamp1_otr_otuser);
-
- MODIFY_REG(*tmp_opamp2_reg_trimming, __OPAMP_OFFSET_TRIM_SET(hopamp2, trimming_diff_pair, OPAMP_TRIM_VALUE_MASK) ,
- __OPAMP_OFFSET_TRIM_SET(hopamp2, trimming_diff_pair, *opamp2_trimmingvalue) | tmp_opamp2_otr_otuser);
-
-
- /* Offset trimming time: during calibration, minimum time needed */
- /* between two steps to have 1 mV accuracy. */
- HAL_Delay(OPAMP_TRIMMING_DELAY);
-
- /* Divide range by 2 to continue dichotomy sweep */
- delta >>= 1;
-
- /* Set trimming values for next iteration in function of trimming */
- /* result toggle (versus initial state). */
- if (READ_BIT(OPAMP->CSR, __OPAMP_CSR_OPAXCALOUT(hopamp1)) != tmp_Opa1calout_DefaultSate)
- {
- /* If calibration output is has toggled, try lower trimming */
- *opamp1_trimmingvalue -= delta;
- }
- else
- {
- /* If calibration output is has not toggled, try higher trimming */
- *opamp1_trimmingvalue += delta;
- }
-
- /* Set trimming values for next iteration in function of trimming */
- /* result toggle (versus initial state). */
- if (READ_BIT(OPAMP->CSR, __OPAMP_CSR_OPAXCALOUT(hopamp2)) != tmp_Opa2calout_DefaultSate)
- {
- /* If calibration output is has toggled, try lower trimming */
- *opamp2_trimmingvalue -= delta;
- }
- else
- {
- /* If calibration output is has not toggled, try higher trimming */
- *opamp2_trimmingvalue += delta;
- }
-
- }
- }
-
-
- /* Disable calibration for P and N differential pairs */
- /* Disable the selected opamp */
- CLEAR_BIT (OPAMP->CSR, (OPAMP_CSR_OPAXCAL_H_ALL |
- OPAMP_CSR_OPAXCAL_L_ALL |
- OPAMP_CSR_OPAXPD_ALL ));
-
- /* Backup of switches configuration to restore it at the end of the */
- /* calibration. */
- SET_BIT(OPAMP->CSR, tmp_OpaxSwitchesContextBackup);
-
- /* 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/low power */
- if (hopamp1->Init.PowerMode != OPAMP_POWERMODE_LOWPOWER)
- {
- /* Write calibration result N */
- hopamp1->Init.TrimmingValueN = opamp1_trimmingvaluen;
- /* Write calibration result P */
- hopamp1->Init.TrimmingValueP = opamp1_trimmingvaluep;
- }
- else
- {
- /* Write calibration result N */
- hopamp1->Init.TrimmingValueNLowPower = opamp1_trimmingvaluen;
- /* Write calibration result P */
- hopamp1->Init.TrimmingValuePLowPower = opamp1_trimmingvaluep;
- }
-
- if (hopamp2->Init.PowerMode != OPAMP_POWERMODE_LOWPOWER)
- {
- /* Write calibration result N */
- hopamp2->Init.TrimmingValueN = opamp2_trimmingvaluen;
- /* Write calibration result P */
- hopamp2->Init.TrimmingValueP = opamp2_trimmingvaluep;
- }
- else
- {
- /* Write calibration result N */
- hopamp2->Init.TrimmingValueNLowPower = opamp2_trimmingvaluen;
- /* Write calibration result P */
- hopamp2->Init.TrimmingValuePLowPower = opamp2_trimmingvaluep;
- }
-
- /* Update OPAMP state */
- hopamp1->State = HAL_OPAMP_STATE_READY;
- hopamp2->State = HAL_OPAMP_STATE_READY;
-
- }
- else
- {
- /* OPAMP can not be calibrated from this mode */
- status = HAL_ERROR;
- }
- }
-
- return status;
-}
-
-#endif /* STM32L151xD || STM32L152xD || STM32L162xD */
-
-/**
- * @}
- */
-
-/** @defgroup OPAMPEx_Exported_Functions_Group2 Extended Peripheral Control functions
- * @brief Extended control functions
- *
-@verbatim
- ===============================================================================
- ##### Peripheral Control functions #####
- ===============================================================================
- [..]
- (+) OPAMP unlock.
-
-@endverbatim
- * @{
- */
-
-/**
- * @brief Unlock the selected opamp configuration.
- * 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 == HAL_NULL) || (hopamp->State == HAL_OPAMP_STATE_RESET)
- || (hopamp->State == HAL_OPAMP_STATE_READY)
- || (hopamp->State == HAL_OPAMP_STATE_CALIBBUSY)
- || (hopamp->State == HAL_OPAMP_STATE_BUSY))
-
- {
- status = HAL_ERROR;
- }
- else
- {
- /* Check the parameter */
- assert_param(IS_OPAMP_ALL_INSTANCE(hopamp->Instance));
-
- /* OPAMP state changed to locked */
- hopamp->State = HAL_OPAMP_STATE_BUSY;
- }
- return status;
-}
-
-/**
- * @}
- */
-
-
-/**
- * @}
- */
-
-#endif /* STM32L151xCA || STM32L151xD || STM32L152xCA || STM32L152xD || STM32L162xCA || STM32L162xD || STM32L151xE || STM32L152xE || STM32L162xE || STM32L162xC || STM32L152xC || STM32L151xC */
-
-#endif /* HAL_OPAMP_MODULE_ENABLED */
-/**
- * @}
- */
-
-/**
- * @}
- */
-
-/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
