| /** |
| ****************************************************************************** |
| * @file stm32l4xx_hal_opamp.c |
| * @author MCD Application Team |
| * @brief OPAMP HAL module driver. |
| * This file provides firmware functions to manage the following |
| * functionalities of the operational amplifier(s) peripheral: |
| * + OPAMP configuration |
| * + OPAMP calibration |
| * Thanks to |
| * + Initialization and de-initialization functions |
| * + IO operation functions |
| * + Peripheral Control functions |
| * + Peripheral State functions |
| * |
| @verbatim |
| ================================================================================ |
| ##### OPAMP Peripheral Features ##### |
| ================================================================================ |
| |
| [..] The device integrates 1 or 2 operational amplifiers OPAMP1 & OPAMP2 |
| |
| (#) The OPAMP(s) provide(s) several exclusive running modes. |
| (++) 1 OPAMP: STM32L412xx STM32L422xx STM32L431xx STM32L432xx STM32L433xx STM32L442xx STM32L443xx |
| (++) 2 OPAMP: STM32L471xx STM32L475xx STM32L476xx STM32L485xx STM32L486xx |
| |
| (#) The OPAMP(s) provide(s) several exclusive running modes. |
| (++) Standalone mode |
| (++) Programmable Gain Amplifier (PGA) mode (Resistor feedback output) |
| (++) Follower mode |
| |
| (#) All OPAMP (same for all OPAMPs) can operate in |
| (++) Either Low range (VDDA < 2.4V) power supply |
| (++) Or High range (VDDA > 2.4V) power supply |
| |
| (#) Each OPAMP(s) can be configured in normal and low power mode. |
| |
| (#) The OPAMP(s) provide(s) calibration capabilities. |
| (++) Calibration aims at correcting some offset for running mode. |
| (++) The OPAMP uses either factory calibration settings OR user defined |
| calibration (trimming) settings (i.e. trimming mode). |
| (++) The user defined settings can be figured out using self calibration |
| handled by HAL_OPAMP_SelfCalibrate, HAL_OPAMPEx_SelfCalibrateAll |
| (++) HAL_OPAMP_SelfCalibrate: |
| (+++) Runs automatically the calibration. |
| (+++) Enables the user trimming mode |
| (+++) Updates the init structure with trimming values with fresh calibration |
| results. |
| The user may store the calibration results for larger |
| (ex monitoring the trimming as a function of temperature |
| for instance) |
| (+++) HAL_OPAMPEx_SelfCalibrateAll |
| runs calibration of all OPAMPs in parallel to save search time. |
| |
| (#) Running mode: Standalone mode |
| (++) Gain is set externally (gain depends on external loads). |
| (++) Follower mode also possible externally by connecting the inverting input to |
| the output. |
| |
| (#) Running mode: Follower mode |
| (++) No Inverting Input is connected. |
| |
| (#) Running mode: Programmable Gain Amplifier (PGA) mode |
| (Resistor feedback output) |
| (++) The OPAMP(s) output(s) can be internally connected to resistor feedback |
| output. |
| (++) OPAMP gain is either 2, 4, 8 or 16. |
| |
| (#) The OPAMPs inverting input can be selected according to the Reference Manual |
| "OPAMP function description" chapter. |
| |
| (#) The OPAMPs non inverting input can be selected according to the Reference Manual |
| "OPAMP function description" chapter. |
| |
| |
| ##### How to use this driver ##### |
| ================================================================================ |
| [..] |
| |
| *** Power supply range *** |
| ============================================ |
| [..] To run in low power mode: |
| |
| (#) Configure the OPAMP using HAL_OPAMP_Init() function: |
| (++) Select OPAMP_POWERSUPPLY_LOW (VDDA lower than 2.4V) |
| (++) Otherwise select OPAMP_POWERSUPPLY_HIGH (VDDA higher than 2.4V) |
| |
| *** Low / normal power mode *** |
| ============================================ |
| [..] To run in low power mode: |
| |
| (#) Configure the OPAMP using HAL_OPAMP_Init() function: |
| (++) Select OPAMP_POWERMODE_LOWPOWER |
| (++) Otherwise select OPAMP_POWERMODE_NORMAL |
| |
| *** Calibration *** |
| ============================================ |
| [..] To run the OPAMP calibration self calibration: |
| |
| (#) Start calibration using HAL_OPAMP_SelfCalibrate. |
| Store the calibration results. |
| |
| *** Running mode *** |
| ============================================ |
| |
| [..] To use the OPAMP, perform the following steps: |
| |
| (#) Fill in the HAL_OPAMP_MspInit() to |
| (++) Enable the OPAMP Peripheral clock using macro __HAL_RCC_OPAMP_CLK_ENABLE() |
| (++) Configure the OPAMP input AND output in analog mode using |
| HAL_GPIO_Init() to map the OPAMP output to the GPIO pin. |
| |
| (#) Registrate Callbacks |
| (++) The compilation define USE_HAL_OPAMP_REGISTER_CALLBACKS when set to 1 |
| allows the user to configure dynamically the driver callbacks. |
| |
| (++) Use Functions @ref HAL_OPAMP_RegisterCallback() to register a user callback, |
| it allows to register following callbacks: |
| (+++) MspInitCallback : OPAMP MspInit. |
| (+++) MspDeInitCallback : OPAMP MspFeInit. |
| This function takes as parameters the HAL peripheral handle, the Callback ID |
| and a pointer to the user callback function. |
| |
| (++) Use function @ref HAL_OPAMP_UnRegisterCallback() to reset a callback to the default |
| weak (surcharged) function. It allows to reset following callbacks: |
| (+++) MspInitCallback : OPAMP MspInit. |
| (+++) MspDeInitCallback : OPAMP MspdeInit. |
| (+++) All Callbacks |
| |
| (#) Configure the OPAMP using HAL_OPAMP_Init() function: |
| (++) Select the mode |
| (++) Select the inverting input |
| (++) Select the non-inverting input |
| (++) If PGA mode is enabled, Select if inverting input is connected. |
| (++) Select either factory or user defined trimming mode. |
| (++) If the user-defined trimming mode is enabled, select PMOS & NMOS trimming values |
| (typically values set by HAL_OPAMP_SelfCalibrate function). |
| |
| (#) Enable the OPAMP using HAL_OPAMP_Start() function. |
| |
| (#) Disable the OPAMP using HAL_OPAMP_Stop() function. |
| |
| (#) Lock the OPAMP in running mode using HAL_OPAMP_Lock() function. |
| Caution: On STM32L4, HAL OPAMP lock is software lock only (not |
| hardware lock as on some other STM32 devices) |
| |
| (#) If needed, unlock the OPAMP using HAL_OPAMPEx_Unlock() function. |
| |
| *** Running mode: change of configuration while OPAMP ON *** |
| ============================================ |
| [..] To Re-configure OPAMP when OPAMP is ON (change on the fly) |
| (#) If needed, fill in the HAL_OPAMP_MspInit() |
| (++) This is the case for instance if you wish to use new OPAMP I/O |
| |
| (#) Configure the OPAMP using HAL_OPAMP_Init() function: |
| (++) As in configure case, select first the parameters you wish to modify. |
| |
| (#) Change from low power mode to normal power mode (& vice versa) requires |
| first HAL_OPAMP_DeInit() (force OPAMP OFF) and then HAL_OPAMP_Init(). |
| In other words, of OPAMP is ON, HAL_OPAMP_Init can NOT change power mode |
| alone. |
| |
| @endverbatim |
| ****************************************************************************** |
| |
| Table 1. OPAMPs inverting/non-inverting inputs for the STM32L4 devices: |
| +------------------------------------------------------------------------| |
| | | | OPAMP1 | OPAMP2 | |
| |-----------------|---------|----------------------|---------------------| |
| | Inverting Input | VM_SEL | | | |
| | | | IO0-> PA1 | IO0-> PA7 | |
| | | | LOW LEAKAGE IO (2) | LOW LEAKAGE IO (2) | |
| | | | Not connected | Not connected | |
| | (1) | | PGA mode only | PGA mode only | |
| |-----------------|---------|----------------------|---------------------| |
| | Non Inverting | VP_SEL | | | |
| | | | IO0-> PA0 (GPIO) | IO0-> PA6 (GPIO) | |
| | Input | | DAC1_OUT1 internal | DAC1_OUT2 internal | |
| +------------------------------------------------------------------------| |
| (1): NA in follower mode. |
| (2): Available on some package only (ex. BGA132). |
| |
| |
| Table 2. OPAMPs outputs for the STM32L4 devices: |
| |
| +------------------------------------------------------------------------- |
| | | | OPAMP1 | OPAMP2 | |
| |-----------------|--------|-----------------------|---------------------| |
| | Output | VOUT | PA3 | PB0 | |
| | | | & (1) ADC12_IN if | & (1) ADC12_IN if | |
| | | | connected internally | connected internally| |
| |-----------------|--------|-----------------------|---------------------| |
| (1): ADC1 or ADC2 shall select IN15. |
| |
| ****************************************************************************** |
| * @attention |
| * |
| * <h2><center>© COPYRIGHT(c) 2017 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 "stm32l4xx_hal.h" |
| |
| /** @addtogroup STM32L4xx_HAL_Driver |
| * @{ |
| */ |
| |
| /** @defgroup OPAMP OPAMP |
| * @brief OPAMP module driver |
| * @{ |
| */ |
| |
| #ifdef HAL_OPAMP_MODULE_ENABLED |
| |
| /* Private types -------------------------------------------------------------*/ |
| /* Private variables ---------------------------------------------------------*/ |
| /* Private constants ---------------------------------------------------------*/ |
| /** @addtogroup OPAMP_Private_Constants |
| * @{ |
| */ |
| |
| /* CSR register reset value */ |
| #define OPAMP_CSR_RESET_VALUE ((uint32_t)0x00000000) |
| |
| #define OPAMP_CSR_RESET_BITS (OPAMP_CSR_OPAMPxEN | OPAMP_CSR_OPALPM | OPAMP_CSR_OPAMODE \ |
| | OPAMP_CSR_PGGAIN | OPAMP_CSR_VMSEL | OPAMP_CSR_VPSEL \ |
| | OPAMP_CSR_CALON | OPAMP_CSR_USERTRIM) |
| |
| /* CSR Init masks */ |
| #define OPAMP_CSR_INIT_MASK_PGA (OPAMP_CSR_OPALPM | OPAMP_CSR_OPAMODE| OPAMP_CSR_PGGAIN \ |
| | OPAMP_CSR_VMSEL | OPAMP_CSR_VPSEL | OPAMP_CSR_USERTRIM) |
| |
| #define OPAMP_CSR_INIT_MASK_FOLLOWER (OPAMP_CSR_OPALPM | OPAMP_CSR_OPAMODE| OPAMP_CSR_VPSEL \ |
| | OPAMP_CSR_USERTRIM) |
| |
| #define OPAMP_CSR_INIT_MASK_STANDALONE (OPAMP_CSR_OPALPM | OPAMP_CSR_OPAMODE| OPAMP_CSR_VPSEL \ |
| | OPAMP_CSR_VMSEL | OPAMP_CSR_USERTRIM) |
| |
| |
| /** |
| * @} |
| */ |
| |
| /* Private macros ------------------------------------------------------------*/ |
| /* Private functions ---------------------------------------------------------*/ |
| /* Exported functions --------------------------------------------------------*/ |
| |
| /** @defgroup OPAMP_Exported_Functions OPAMP Exported Functions |
| * @{ |
| */ |
| |
| /** @defgroup OPAMP_Exported_Functions_Group1 Initialization and de-initialization functions |
| * @brief Initialization and Configuration functions |
| * |
| @verbatim |
| ============================================================================== |
| ##### Initialization and de-initialization functions ##### |
| ============================================================================== |
| |
| @endverbatim |
| * @{ |
| */ |
| |
| /** |
| * @brief Initializes the OPAMP according to the specified |
| * parameters in the OPAMP_InitTypeDef and initialize the associated handle. |
| * @note If the selected opamp is locked, initialization can't be performed. |
| * To unlock the configuration, perform a system reset. |
| * @param hopamp: OPAMP handle |
| * @retval HAL status |
| */ |
| HAL_StatusTypeDef HAL_OPAMP_Init(OPAMP_HandleTypeDef *hopamp) |
| { |
| HAL_StatusTypeDef status = HAL_OK; |
| uint32_t updateotrlpotr; |
| |
| /* Check the OPAMP handle allocation and lock status */ |
| /* Init not allowed if calibration is ongoing */ |
| if(hopamp == NULL) |
| { |
| return HAL_ERROR; |
| } |
| else if(hopamp->State == HAL_OPAMP_STATE_BUSYLOCKED) |
| { |
| return HAL_ERROR; |
| } |
| else if(hopamp->State == HAL_OPAMP_STATE_CALIBBUSY) |
| { |
| return HAL_ERROR; |
| } |
| else |
| { |
| /* Check the parameter */ |
| assert_param(IS_OPAMP_ALL_INSTANCE(hopamp->Instance)); |
| |
| /* Set OPAMP parameters */ |
| assert_param(IS_OPAMP_POWER_SUPPLY_RANGE(hopamp->Init.PowerSupplyRange)); |
| assert_param(IS_OPAMP_POWERMODE(hopamp->Init.PowerMode)); |
| assert_param(IS_OPAMP_FUNCTIONAL_NORMALMODE(hopamp->Init.Mode)); |
| assert_param(IS_OPAMP_NONINVERTING_INPUT(hopamp->Init.NonInvertingInput)); |
| |
| if(hopamp->State == HAL_OPAMP_STATE_RESET) |
| { |
| #if (USE_HAL_OPAMP_REGISTER_CALLBACKS == 1) |
| if(hopamp->MspInitCallback == NULL) |
| { |
| hopamp->MspInitCallback = HAL_OPAMP_MspInit; |
| } |
| #endif /* USE_HAL_OPAMP_REGISTER_CALLBACKS */ |
| } |
| |
| if ((hopamp->Init.Mode) == OPAMP_STANDALONE_MODE) |
| { |
| assert_param(IS_OPAMP_INVERTING_INPUT_STANDALONE(hopamp->Init.InvertingInput)); |
| } |
| |
| if ((hopamp->Init.Mode) == OPAMP_PGA_MODE) |
| { |
| assert_param(IS_OPAMP_INVERTING_INPUT_PGA(hopamp->Init.InvertingInput)); |
| } |
| |
| if ((hopamp->Init.Mode) == OPAMP_PGA_MODE) |
| { |
| assert_param(IS_OPAMP_PGA_GAIN(hopamp->Init.PgaGain)); |
| } |
| |
| assert_param(IS_OPAMP_TRIMMING(hopamp->Init.UserTrimming)); |
| if ((hopamp->Init.UserTrimming) == OPAMP_TRIMMING_USER) |
| { |
| if (hopamp->Init.PowerMode == OPAMP_POWERMODE_NORMAL) |
| { |
| assert_param(IS_OPAMP_TRIMMINGVALUE(hopamp->Init.TrimmingValueP)); |
| assert_param(IS_OPAMP_TRIMMINGVALUE(hopamp->Init.TrimmingValueN)); |
| } |
| else |
| { |
| assert_param(IS_OPAMP_TRIMMINGVALUE(hopamp->Init.TrimmingValuePLowPower)); |
| assert_param(IS_OPAMP_TRIMMINGVALUE(hopamp->Init.TrimmingValueNLowPower)); |
| } |
| } |
| |
| if(hopamp->State == HAL_OPAMP_STATE_RESET) |
| { |
| /* Allocate lock resource and initialize it */ |
| hopamp->Lock = HAL_UNLOCKED; |
| } |
| |
| #if (USE_HAL_OPAMP_REGISTER_CALLBACKS == 1) |
| hopamp->MspInitCallback(hopamp); |
| #else |
| /* Call MSP init function */ |
| HAL_OPAMP_MspInit(hopamp); |
| #endif /* USE_HAL_OPAMP_REGISTER_CALLBACKS */ |
| |
| /* Set operating mode */ |
| CLEAR_BIT(hopamp->Instance->CSR, OPAMP_CSR_CALON); |
| |
| if (hopamp->Init.Mode == OPAMP_PGA_MODE) |
| { |
| MODIFY_REG(hopamp->Instance->CSR, OPAMP_CSR_INIT_MASK_PGA, \ |
| hopamp->Init.PowerMode | \ |
| hopamp->Init.Mode | \ |
| hopamp->Init.PgaGain | \ |
| hopamp->Init.InvertingInput | \ |
| hopamp->Init.NonInvertingInput | \ |
| hopamp->Init.UserTrimming); |
| } |
| |
| if (hopamp->Init.Mode == OPAMP_FOLLOWER_MODE) |
| { |
| /* In Follower mode InvertingInput is Not Applicable */ |
| MODIFY_REG(hopamp->Instance->CSR, OPAMP_CSR_INIT_MASK_FOLLOWER, \ |
| hopamp->Init.PowerMode | \ |
| hopamp->Init.Mode | \ |
| hopamp->Init.NonInvertingInput | \ |
| hopamp->Init.UserTrimming); |
| } |
| |
| if (hopamp->Init.Mode == OPAMP_STANDALONE_MODE) |
| { |
| MODIFY_REG(hopamp->Instance->CSR, OPAMP_CSR_INIT_MASK_STANDALONE, \ |
| hopamp->Init.PowerMode | \ |
| hopamp->Init.Mode | \ |
| hopamp->Init.InvertingInput | \ |
| hopamp->Init.NonInvertingInput | \ |
| hopamp->Init.UserTrimming); |
| } |
| |
| if (hopamp->Init.UserTrimming == OPAMP_TRIMMING_USER) |
| { |
| /* Set power mode and associated calibration parameters */ |
| if (hopamp->Init.PowerMode != OPAMP_POWERMODE_LOWPOWER) |
| { |
| /* OPAMP_POWERMODE_NORMAL */ |
| /* Set calibration mode (factory or user) and values for */ |
| /* transistors differential pair high (PMOS) and low (NMOS) for */ |
| /* normal mode. */ |
| updateotrlpotr = (((hopamp->Init.TrimmingValueP) << (OPAMP_INPUT_NONINVERTING)) \ |
| | (hopamp->Init.TrimmingValueN)); |
| MODIFY_REG(hopamp->Instance->OTR, OPAMP_OTR_TRIMOFFSETN | OPAMP_OTR_TRIMOFFSETP, updateotrlpotr); |
| } |
| else |
| { |
| /* OPAMP_POWERMODE_LOWPOWER */ |
| /* transistors differential pair high (PMOS) and low (NMOS) for */ |
| /* low power mode. */ |
| updateotrlpotr = (((hopamp->Init.TrimmingValuePLowPower) << (OPAMP_INPUT_NONINVERTING)) \ |
| | (hopamp->Init.TrimmingValueNLowPower)); |
| MODIFY_REG(hopamp->Instance->LPOTR, OPAMP_OTR_TRIMOFFSETN | OPAMP_OTR_TRIMOFFSETP, updateotrlpotr); |
| } |
| } |
| |
| /* Configure the power supply range */ |
| /* The OPAMP_CSR_OPARANGE is common configuration for all OPAMPs */ |
| /* bit OPAMP1_CSR_OPARANGE is used for both OPAMPs */ |
| MODIFY_REG(OPAMP1->CSR, OPAMP1_CSR_OPARANGE, hopamp->Init.PowerSupplyRange); |
| |
| /* Update the OPAMP state*/ |
| if (hopamp->State == HAL_OPAMP_STATE_RESET) |
| { |
| /* From RESET state to READY State */ |
| hopamp->State = HAL_OPAMP_STATE_READY; |
| } |
| /* else: remain in READY or BUSY state (no update) */ |
| return status; |
| } |
| } |
| |
| /** |
| * @brief DeInitialize the OPAMP peripheral. |
| * @note Deinitialization can be performed if the OPAMP configuration is locked. |
| * (the lock is SW in L4) |
| * @param hopamp: OPAMP handle |
| * @retval HAL status |
| */ |
| HAL_StatusTypeDef HAL_OPAMP_DeInit(OPAMP_HandleTypeDef *hopamp) |
| { |
| HAL_StatusTypeDef status = HAL_OK; |
| |
| /* Check the OPAMP handle allocation */ |
| /* DeInit not allowed if calibration is ongoing */ |
| if(hopamp == NULL) |
| { |
| status = HAL_ERROR; |
| } |
| else if(hopamp->State == HAL_OPAMP_STATE_CALIBBUSY) |
| { |
| status = HAL_ERROR; |
| } |
| else |
| { |
| /* Check the parameter */ |
| assert_param(IS_OPAMP_ALL_INSTANCE(hopamp->Instance)); |
| |
| /* Set OPAMP_CSR register to reset value */ |
| /* Mind that OPAMP1_CSR_OPARANGE of CSR of OPAMP1 remains unchanged (applies to both OPAMPs) */ |
| /* OPAMP shall be disabled first separately */ |
| CLEAR_BIT(hopamp->Instance->CSR, OPAMP_CSR_OPAMPxEN); |
| MODIFY_REG(hopamp->Instance->CSR, OPAMP_CSR_RESET_BITS, OPAMP_CSR_RESET_VALUE); |
| |
| #if (USE_HAL_OPAMP_REGISTER_CALLBACKS == 1) |
| if(hopamp->MspDeInitCallback == NULL) |
| { |
| hopamp->MspDeInitCallback = HAL_OPAMP_MspDeInit; |
| } |
| /* DeInit the low level hardware */ |
| hopamp->MspDeInitCallback(hopamp); |
| #else |
| /* DeInit the low level hardware: GPIO, CLOCK and NVIC */ |
| HAL_OPAMP_MspDeInit(hopamp); |
| #endif /* USE_HAL_OPAMP_REGISTER_CALLBACKS */ |
| /* Update the OPAMP state*/ |
| hopamp->State = HAL_OPAMP_STATE_RESET; |
| |
| /* Process unlocked */ |
| __HAL_UNLOCK(hopamp); |
| } |
| return status; |
| } |
| |
| /** |
| * @brief Initialize the OPAMP MSP. |
| * @param hopamp: OPAMP handle |
| * @retval None |
| */ |
| __weak void HAL_OPAMP_MspInit(OPAMP_HandleTypeDef *hopamp) |
| { |
| /* Prevent unused argument(s) compilation warning */ |
| UNUSED(hopamp); |
| |
| /* NOTE : This function should not be modified, when the callback is needed, |
| the function "HAL_OPAMP_MspInit()" must be implemented in the user file. |
| */ |
| } |
| |
| /** |
| * @brief DeInitialize OPAMP MSP. |
| * @param hopamp: OPAMP handle |
| * @retval None |
| */ |
| __weak void HAL_OPAMP_MspDeInit(OPAMP_HandleTypeDef *hopamp) |
| { |
| /* Prevent unused argument(s) compilation warning */ |
| UNUSED(hopamp); |
| |
| /* NOTE : This function should not be modified, when the callback is needed, |
| the function "HAL_OPAMP_MspDeInit()" must be implemented in the user file. |
| */ |
| } |
| |
| /** |
| * @} |
| */ |
| |
| |
| /** @defgroup OPAMP_Exported_Functions_Group2 IO operation functions |
| * @brief IO operation functions |
| * |
| @verbatim |
| =============================================================================== |
| ##### IO operation functions ##### |
| =============================================================================== |
| [..] |
| This subsection provides a set of functions allowing to manage the OPAMP |
| start, stop and calibration actions. |
| |
| @endverbatim |
| * @{ |
| */ |
| |
| /** |
| * @brief Start the OPAMP. |
| * @param hopamp: OPAMP handle |
| * @retval HAL status |
| */ |
| |
| HAL_StatusTypeDef HAL_OPAMP_Start(OPAMP_HandleTypeDef *hopamp) |
| { |
| HAL_StatusTypeDef status = HAL_OK; |
| |
| /* Check the OPAMP handle allocation */ |
| /* Check if OPAMP locked */ |
| if(hopamp == NULL) |
| { |
| status = HAL_ERROR; |
| } |
| else if(hopamp->State == HAL_OPAMP_STATE_BUSYLOCKED) |
| { |
| status = HAL_ERROR; |
| } |
| else |
| { |
| /* Check the parameter */ |
| assert_param(IS_OPAMP_ALL_INSTANCE(hopamp->Instance)); |
| |
| if(hopamp->State == HAL_OPAMP_STATE_READY) |
| { |
| /* Enable the selected opamp */ |
| SET_BIT (hopamp->Instance->CSR, OPAMP_CSR_OPAMPxEN); |
| |
| /* Update the OPAMP state*/ |
| /* From HAL_OPAMP_STATE_READY to HAL_OPAMP_STATE_BUSY */ |
| hopamp->State = HAL_OPAMP_STATE_BUSY; |
| } |
| else |
| { |
| status = HAL_ERROR; |
| } |
| |
| } |
| return status; |
| } |
| |
| /** |
| * @brief Stop the OPAMP. |
| * @param hopamp: OPAMP handle |
| * @retval HAL status |
| */ |
| HAL_StatusTypeDef HAL_OPAMP_Stop(OPAMP_HandleTypeDef *hopamp) |
| { |
| HAL_StatusTypeDef status = HAL_OK; |
| |
| /* Check the OPAMP handle allocation */ |
| /* Check if OPAMP locked */ |
| /* Check if OPAMP calibration ongoing */ |
| if(hopamp == NULL) |
| { |
| status = HAL_ERROR; |
| } |
| else if(hopamp->State == HAL_OPAMP_STATE_BUSYLOCKED) |
| { |
| status = HAL_ERROR; |
| } |
| else if(hopamp->State == HAL_OPAMP_STATE_CALIBBUSY) |
| { |
| status = HAL_ERROR; |
| } |
| else |
| { |
| /* Check the parameter */ |
| assert_param(IS_OPAMP_ALL_INSTANCE(hopamp->Instance)); |
| |
| if(hopamp->State == HAL_OPAMP_STATE_BUSY) |
| { |
| /* Disable the selected opamp */ |
| CLEAR_BIT (hopamp->Instance->CSR, OPAMP_CSR_OPAMPxEN); |
| |
| /* Update the OPAMP state*/ |
| /* From HAL_OPAMP_STATE_BUSY to HAL_OPAMP_STATE_READY*/ |
| hopamp->State = HAL_OPAMP_STATE_READY; |
| } |
| else |
| { |
| status = HAL_ERROR; |
| } |
| } |
| return status; |
| } |
| |
| /** |
| * @brief Run the self calibration of one OPAMP. |
| * @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. |
| * @param hopamp handle |
| * @retval Updated offset trimming values (PMOS & NMOS), user trimming is enabled |
| * @retval HAL status |
| |
| */ |
| |
| HAL_StatusTypeDef HAL_OPAMP_SelfCalibrate(OPAMP_HandleTypeDef *hopamp) |
| { |
| |
| HAL_StatusTypeDef status = HAL_OK; |
| |
| uint32_t trimmingvaluen; |
| uint32_t trimmingvaluep; |
| uint32_t delta; |
| uint32_t opampmode; |
| |
| __IO uint32_t* tmp_opamp_reg_trimming; /* Selection of register of trimming depending on power mode: OTR or LPOTR */ |
| |
| /* Check the OPAMP handle allocation */ |
| /* Check if OPAMP locked */ |
| if(hopamp == NULL) |
| { |
| status = HAL_ERROR; |
| } |
| else if(hopamp->State == HAL_OPAMP_STATE_BUSYLOCKED) |
| { |
| status = HAL_ERROR; |
| } |
| else |
| { |
| /* Check if OPAMP in calibration mode and calibration not yet enable */ |
| if(hopamp->State == HAL_OPAMP_STATE_READY) |
| { |
| /* Check the parameter */ |
| assert_param(IS_OPAMP_ALL_INSTANCE(hopamp->Instance)); |
| assert_param(IS_OPAMP_POWERMODE(hopamp->Init.PowerMode)); |
| |
| /* Save OPAMP mode as in */ |
| /* STM32L471xx STM32L475xx STM32L476xx STM32L485xx STM32L486xx */ |
| /* the calibration is not working in PGA mode */ |
| opampmode = READ_BIT(hopamp->Instance->CSR,OPAMP_CSR_OPAMODE); |
| |
| /* Use of standalone mode */ |
| MODIFY_REG(hopamp->Instance->CSR, OPAMP_CSR_OPAMODE, OPAMP_STANDALONE_MODE); |
| |
| /* user trimming values are used for offset calibration */ |
| SET_BIT(hopamp->Instance->CSR, OPAMP_CSR_USERTRIM); |
| |
| /* Select trimming settings depending on power mode */ |
| if (hopamp->Init.PowerMode == OPAMP_POWERMODE_NORMAL) |
| { |
| tmp_opamp_reg_trimming = &hopamp->Instance->OTR; |
| } |
| else |
| { |
| tmp_opamp_reg_trimming = &hopamp->Instance->LPOTR; |
| } |
| |
| /* Enable calibration */ |
| SET_BIT (hopamp->Instance->CSR, OPAMP_CSR_CALON); |
| |
| /* 1st calibration - N */ |
| CLEAR_BIT (hopamp->Instance->CSR, OPAMP_CSR_CALSEL); |
| |
| /* Enable the selected opamp */ |
| SET_BIT (hopamp->Instance->CSR, OPAMP_CSR_OPAMPxEN); |
| |
| /* Init trimming counter */ |
| /* Medium value */ |
| trimmingvaluen = 16U; |
| delta = 8U; |
| |
| while (delta != 0U) |
| { |
| /* Set candidate trimming */ |
| /* OPAMP_POWERMODE_NORMAL */ |
| MODIFY_REG(*tmp_opamp_reg_trimming, OPAMP_OTR_TRIMOFFSETN, trimmingvaluen); |
| |
| /* OFFTRIMmax delay 1 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(hopamp->Instance->CSR, OPAMP_CSR_CALOUT) != 0U) |
| { |
| /* OPAMP_CSR_CALOUT is HIGH try higher trimming */ |
| trimmingvaluen -= delta; |
| } |
| else |
| { |
| /* OPAMP_CSR_CALOUT is LOW try lower trimming */ |
| trimmingvaluen += 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_opamp_reg_trimming, OPAMP_OTR_TRIMOFFSETN, trimmingvaluen); |
| |
| /* OFFTRIMmax delay 1 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(hopamp->Instance->CSR, OPAMP_CSR_CALOUT)) == 0U) |
| { |
| /* Trimming value is actually one value more */ |
| trimmingvaluen++; |
| /* Set right trimming */ |
| MODIFY_REG(*tmp_opamp_reg_trimming, OPAMP_OTR_TRIMOFFSETN, trimmingvaluen); |
| } |
| |
| /* 2nd calibration - P */ |
| SET_BIT (hopamp->Instance->CSR, OPAMP_CSR_CALSEL); |
| |
| /* Init trimming counter */ |
| /* Medium value */ |
| trimmingvaluep = 16U; |
| delta = 8U; |
| |
| while (delta != 0U) |
| { |
| /* Set candidate trimming */ |
| /* OPAMP_POWERMODE_NORMAL */ |
| MODIFY_REG(*tmp_opamp_reg_trimming, OPAMP_OTR_TRIMOFFSETP, (trimmingvaluep<<OPAMP_INPUT_NONINVERTING)); |
| |
| /* OFFTRIMmax delay 1 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(hopamp->Instance->CSR, OPAMP_CSR_CALOUT) != 0U) |
| { |
| /* OPAMP_CSR_CALOUT is HIGH try higher trimming */ |
| trimmingvaluep += delta; |
| } |
| else |
| { |
| /* OPAMP_CSR_CALOUT is LOW try lower trimming */ |
| trimmingvaluep -= 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_opamp_reg_trimming, OPAMP_OTR_TRIMOFFSETP, (trimmingvaluep<<OPAMP_INPUT_NONINVERTING)); |
| |
| /* OFFTRIMmax delay 1 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(hopamp->Instance->CSR, OPAMP_CSR_CALOUT) != 0U) |
| { |
| /* Trimming value is actually one value more */ |
| trimmingvaluep++; |
| MODIFY_REG(*tmp_opamp_reg_trimming, OPAMP_OTR_TRIMOFFSETP, (trimmingvaluep<<OPAMP_INPUT_NONINVERTING)); |
| } |
| |
| /* Disable the OPAMP */ |
| CLEAR_BIT (hopamp->Instance->CSR, OPAMP_CSR_OPAMPxEN); |
| |
| /* Disable calibration & set normal mode (operating mode) */ |
| CLEAR_BIT (hopamp->Instance->CSR, OPAMP_CSR_CALON); |
| |
| /* Self calibration is successful */ |
| /* Store calibration(user trimming) results in init structure. */ |
| |
| /* Set user trimming mode */ |
| hopamp->Init.UserTrimming = OPAMP_TRIMMING_USER; |
| |
| /* Affect calibration parameters depending on mode normal/low power */ |
| if (hopamp->Init.PowerMode != OPAMP_POWERMODE_LOWPOWER) |
| { |
| /* Write calibration result N */ |
| hopamp->Init.TrimmingValueN = trimmingvaluen; |
| /* Write calibration result P */ |
| hopamp->Init.TrimmingValueP = trimmingvaluep; |
| } |
| else |
| { |
| /* Write calibration result N */ |
| hopamp->Init.TrimmingValueNLowPower = trimmingvaluen; |
| /* Write calibration result P */ |
| hopamp->Init.TrimmingValuePLowPower = trimmingvaluep; |
| } |
| |
| /* Restore OPAMP mode after calibration */ |
| MODIFY_REG(hopamp->Instance->CSR, OPAMP_CSR_OPAMODE, opampmode); |
| } |
| else |
| { |
| /* OPAMP can not be calibrated from this mode */ |
| status = HAL_ERROR; |
| } |
| } |
| return status; |
| } |
| |
| /** |
| * @} |
| */ |
| |
| /** @defgroup OPAMP_Exported_Functions_Group3 Peripheral Control functions |
| * @brief Peripheral Control functions |
| * |
| @verbatim |
| =============================================================================== |
| ##### Peripheral Control functions ##### |
| =============================================================================== |
| [..] |
| This subsection provides a set of functions allowing to control the OPAMP data |
| transfers. |
| |
| |
| |
| @endverbatim |
| * @{ |
| */ |
| |
| /** |
| * @brief Lock the selected OPAMP configuration. |
| * @note On STM32L4, HAL OPAMP lock is software lock only (in |
| * contrast of hardware lock available on some other STM32 |
| * devices). |
| * @param hopamp: OPAMP handle |
| * @retval HAL status |
| */ |
| HAL_StatusTypeDef HAL_OPAMP_Lock(OPAMP_HandleTypeDef *hopamp) |
| { |
| HAL_StatusTypeDef status = HAL_OK; |
| |
| /* Check the OPAMP handle allocation */ |
| /* Check if OPAMP locked */ |
| /* OPAMP can be locked when enabled and running in normal mode */ |
| /* It is meaningless otherwise */ |
| if(hopamp == NULL) |
| { |
| status = HAL_ERROR; |
| } |
| else if(hopamp->State == HAL_OPAMP_STATE_BUSY) |
| { |
| /* Check the parameter */ |
| assert_param(IS_OPAMP_ALL_INSTANCE(hopamp->Instance)); |
| |
| /* OPAMP state changed to locked */ |
| hopamp->State = HAL_OPAMP_STATE_BUSYLOCKED; |
| } |
| else |
| { |
| status = HAL_ERROR; |
| } |
| return status; |
| } |
| |
| /** |
| * @brief Return the OPAMP factory trimming value. |
| * @note On STM32L4 OPAMP, user can retrieve factory trimming if |
| * OPAMP has never been set to user trimming before. |
| * Therefore, this function must be called when OPAMP init |
| * parameter "UserTrimming" is set to trimming factory, |
| * and before OPAMP calibration (function |
| * "HAL_OPAMP_SelfCalibrate()"). |
| * Otherwise, factory trimming value cannot be retrieved and |
| * error status is returned. |
| * @param hopamp : OPAMP handle |
| * @param trimmingoffset : Trimming offset (P or N) |
| * This parameter must be a value of @ref OPAMP_FactoryTrimming |
| * @note Calibration parameter retrieved is corresponding to the mode |
| * specified in OPAMP init structure (mode normal or low-power). |
| * To retrieve calibration parameters for both modes, repeat this |
| * function after OPAMP init structure accordingly updated. |
| * @retval Trimming value (P or N): range: 0->31 |
| * or OPAMP_FACTORYTRIMMING_DUMMY if trimming value is not available |
| * |
| */ |
| |
| HAL_OPAMP_TrimmingValueTypeDef HAL_OPAMP_GetTrimOffset (OPAMP_HandleTypeDef *hopamp, uint32_t trimmingoffset) |
| { |
| HAL_OPAMP_TrimmingValueTypeDef trimmingvalue; |
| __IO uint32_t* tmp_opamp_reg_trimming; /* Selection of register of trimming depending on power mode: OTR or LPOTR */ |
| |
| /* Check the OPAMP handle allocation */ |
| /* Value can be retrieved in HAL_OPAMP_STATE_READY state */ |
| if(hopamp == NULL) |
| { |
| return OPAMP_FACTORYTRIMMING_DUMMY; |
| } |
| |
| /* Check the OPAMP handle allocation */ |
| /* Value can be retrieved in HAL_OPAMP_STATE_READY state */ |
| if(hopamp->State == HAL_OPAMP_STATE_READY) |
| { |
| /* Check the parameter */ |
| assert_param(IS_OPAMP_ALL_INSTANCE(hopamp->Instance)); |
| assert_param(IS_OPAMP_FACTORYTRIMMING(trimmingoffset)); |
| assert_param(IS_OPAMP_POWERMODE(hopamp->Init.PowerMode)); |
| |
| /* Check the trimming mode */ |
| if (READ_BIT(hopamp->Instance->CSR,OPAMP_CSR_USERTRIM) != 0U) |
| { |
| /* This function must called when OPAMP init parameter "UserTrimming" */ |
| /* is set to trimming factory, and before OPAMP calibration (function */ |
| /* "HAL_OPAMP_SelfCalibrate()"). */ |
| /* Otherwise, factory trimming value cannot be retrieved and error */ |
| /* status is returned. */ |
| trimmingvalue = OPAMP_FACTORYTRIMMING_DUMMY; |
| } |
| else |
| { |
| /* Select trimming settings depending on power mode */ |
| if (hopamp->Init.PowerMode == OPAMP_POWERMODE_NORMAL) |
| { |
| tmp_opamp_reg_trimming = &OPAMP->OTR; |
| } |
| else |
| { |
| tmp_opamp_reg_trimming = &OPAMP->LPOTR; |
| } |
| |
| /* Get factory trimming */ |
| if (trimmingoffset == OPAMP_FACTORYTRIMMING_P) |
| { |
| /* OPAMP_FACTORYTRIMMING_P */ |
| trimmingvalue = ((*tmp_opamp_reg_trimming) & OPAMP_OTR_TRIMOFFSETP) >> OPAMP_INPUT_NONINVERTING; |
| } |
| else |
| { |
| /* OPAMP_FACTORYTRIMMING_N */ |
| trimmingvalue = (*tmp_opamp_reg_trimming) & OPAMP_OTR_TRIMOFFSETN; |
| } |
| } |
| } |
| else |
| { |
| return OPAMP_FACTORYTRIMMING_DUMMY; |
| } |
| return trimmingvalue; |
| } |
| |
| /** |
| * @} |
| */ |
| |
| |
| /** @defgroup OPAMP_Exported_Functions_Group4 Peripheral State functions |
| * @brief Peripheral State functions |
| * |
| @verbatim |
| =============================================================================== |
| ##### Peripheral State functions ##### |
| =============================================================================== |
| [..] |
| This subsection permits to get in run-time the status of the peripheral. |
| |
| @endverbatim |
| * @{ |
| */ |
| |
| /** |
| * @brief Return the OPAMP handle state. |
| * @param hopamp : OPAMP handle |
| * @retval HAL state |
| */ |
| HAL_OPAMP_StateTypeDef HAL_OPAMP_GetState(OPAMP_HandleTypeDef *hopamp) |
| { |
| /* Check the OPAMP handle allocation */ |
| if(hopamp == NULL) |
| { |
| return HAL_OPAMP_STATE_RESET; |
| } |
| |
| /* Check the parameter */ |
| assert_param(IS_OPAMP_ALL_INSTANCE(hopamp->Instance)); |
| |
| /* Return OPAMP handle state */ |
| return hopamp->State; |
| } |
| |
| /** |
| * @} |
| */ |
| |
| #if (USE_HAL_OPAMP_REGISTER_CALLBACKS == 1) |
| /** |
| * @brief Register a User OPAMP Callback |
| * To be used instead of the weak (surcharged) predefined callback |
| * @param hopamp : OPAMP handle |
| * @param CallbackID : ID of the callback to be registered |
| * This parameter can be one of the following values: |
| * @arg @ref HAL_OPAMP_MSP_INIT_CB_ID OPAMP MspInit callback ID |
| * @arg @ref HAL_OPAMP_MSP_DEINIT_CB_ID OPAMP MspDeInit callback ID |
| * @param pCallback : pointer to the Callback function |
| * @retval status |
| */ |
| HAL_StatusTypeDef HAL_OPAMP_RegisterCallback (OPAMP_HandleTypeDef *hopamp, HAL_OPAMP_CallbackIDTypeDef CallbackID, pOPAMP_CallbackTypeDef pCallback) |
| { |
| HAL_StatusTypeDef status = HAL_OK; |
| |
| if(pCallback == NULL) |
| { |
| return HAL_ERROR; |
| } |
| |
| /* Process locked */ |
| __HAL_LOCK(hopamp); |
| |
| if(hopamp->State == HAL_OPAMP_STATE_READY) |
| { |
| switch (CallbackID) |
| { |
| case HAL_OPAMP_MSP_INIT_CB_ID : |
| hopamp->MspInitCallback = pCallback; |
| break; |
| case HAL_OPAMP_MSP_DEINIT_CB_ID : |
| hopamp->MspDeInitCallback = pCallback; |
| break; |
| default : |
| /* update return status */ |
| status = HAL_ERROR; |
| break; |
| } |
| } |
| else if (hopamp->State == HAL_OPAMP_STATE_RESET) |
| { |
| switch (CallbackID) |
| { |
| case HAL_OPAMP_MSP_INIT_CB_ID : |
| hopamp->MspInitCallback = pCallback; |
| break; |
| case HAL_OPAMP_MSP_DEINIT_CB_ID : |
| hopamp->MspDeInitCallback = pCallback; |
| break; |
| default : |
| /* update return status */ |
| status = HAL_ERROR; |
| break; |
| } |
| } |
| else |
| { |
| /* update return status */ |
| status = HAL_ERROR; |
| } |
| |
| /* Release Lock */ |
| __HAL_UNLOCK(hopamp); |
| return status; |
| } |
| |
| /** |
| * @brief Unregister a User OPAMP Callback |
| * OPAMP Callback is redirected to the weak (surcharged) predefined callback |
| * @param hopamp : OPAMP handle |
| * @param CallbackID : ID of the callback to be unregistered |
| * This parameter can be one of the following values: |
| * @arg @ref HAL_OPAMP_MSP_INIT_CB_ID OPAMP MSP Init Callback ID |
| * @arg @ref HAL_OPAMP_MSP_DEINIT_CB_ID OPAMP MSP DeInit Callback ID |
| * @arg @ref HAL_OPAMP_ALL_CB_ID OPAMP All Callbacks |
| * @retval status |
| */ |
| |
| HAL_StatusTypeDef HAL_OPAMP_UnRegisterCallback (OPAMP_HandleTypeDef *hopamp, HAL_OPAMP_CallbackIDTypeDef CallbackID) |
| { |
| HAL_StatusTypeDef status = HAL_OK; |
| |
| /* Process locked */ |
| __HAL_LOCK(hopamp); |
| |
| if(hopamp->State == HAL_OPAMP_STATE_READY) |
| { |
| switch (CallbackID) |
| { |
| case HAL_OPAMP_MSP_INIT_CB_ID : |
| hopamp->MspInitCallback = HAL_OPAMP_MspInit; |
| break; |
| case HAL_OPAMP_MSP_DEINIT_CB_ID : |
| hopamp->MspDeInitCallback = HAL_OPAMP_MspDeInit; |
| break; |
| case HAL_OPAMP_ALL_CB_ID : |
| hopamp->MspInitCallback = HAL_OPAMP_MspInit; |
| hopamp->MspDeInitCallback = HAL_OPAMP_MspDeInit; |
| break; |
| default : |
| /* update return status */ |
| status = HAL_ERROR; |
| break; |
| } |
| } |
| else if (hopamp->State == HAL_OPAMP_STATE_RESET) |
| { |
| switch (CallbackID) |
| { |
| case HAL_OPAMP_MSP_INIT_CB_ID : |
| hopamp->MspInitCallback = HAL_OPAMP_MspInit; |
| break; |
| case HAL_OPAMP_MSP_DEINIT_CB_ID : |
| hopamp->MspDeInitCallback = HAL_OPAMP_MspDeInit; |
| break; |
| default : |
| /* update return status */ |
| status = HAL_ERROR; |
| break; |
| } |
| } |
| else |
| { |
| /* update return status */ |
| status = HAL_ERROR; |
| } |
| |
| /* Release Lock */ |
| __HAL_UNLOCK(hopamp); |
| return status; |
| } |
| |
| #endif /* USE_HAL_OPAMP_REGISTER_CALLBACKS */ |
| |
| |
| /** |
| * @} |
| */ |
| |
| /** |
| * @} |
| */ |
| |
| #endif /* HAL_OPAMP_MODULE_ENABLED */ |
| /** |
| * @} |
| */ |
| |
| /** |
| * @} |
| */ |
| |
| /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/ |