mbed library sources
Fork of mbed-src by
targets/cmsis/TARGET_STM/TARGET_STM32L1/stm32l1xx_hal_opamp.c@603:f00c7e78e8b4, 2015-08-09 (annotated)
- Committer:
- HiAlgoBoost
- Date:
- Sun Aug 09 05:18:54 2015 +0000
- Revision:
- 603:f00c7e78e8b4
- Parent:
- 394:83f921546702
Evening of August 8th version
Who changed what in which revision?
User | Revision | Line number | New contents of line |
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mbed_official | 354:e67efb2aab0e | 1 | /** |
mbed_official | 354:e67efb2aab0e | 2 | ****************************************************************************** |
mbed_official | 354:e67efb2aab0e | 3 | * @file stm32l1xx_hal_opamp.c |
mbed_official | 354:e67efb2aab0e | 4 | * @author MCD Application Team |
mbed_official | 354:e67efb2aab0e | 5 | * @version V1.0.0 |
mbed_official | 354:e67efb2aab0e | 6 | * @date 5-September-2014 |
mbed_official | 354:e67efb2aab0e | 7 | * @brief OPAMP HAL module driver. |
mbed_official | 354:e67efb2aab0e | 8 | * |
mbed_official | 354:e67efb2aab0e | 9 | * This file provides firmware functions to manage the following |
mbed_official | 354:e67efb2aab0e | 10 | * functionalities of the operational amplifiers (OPAMP1 ,... ,OPAMP3) |
mbed_official | 354:e67efb2aab0e | 11 | * peripheral: |
mbed_official | 354:e67efb2aab0e | 12 | * + OPAMP configuration |
mbed_official | 354:e67efb2aab0e | 13 | * + OPAMP calibration |
mbed_official | 354:e67efb2aab0e | 14 | * |
mbed_official | 354:e67efb2aab0e | 15 | * Thanks to |
mbed_official | 354:e67efb2aab0e | 16 | * + Initialization and de-initialization functions |
mbed_official | 354:e67efb2aab0e | 17 | * + IO operation functions |
mbed_official | 354:e67efb2aab0e | 18 | * + Peripheral Control functions |
mbed_official | 354:e67efb2aab0e | 19 | * + Peripheral State functions |
mbed_official | 354:e67efb2aab0e | 20 | * |
mbed_official | 354:e67efb2aab0e | 21 | @verbatim |
mbed_official | 354:e67efb2aab0e | 22 | ================================================================================ |
mbed_official | 354:e67efb2aab0e | 23 | ##### OPAMP Peripheral Features ##### |
mbed_official | 354:e67efb2aab0e | 24 | ================================================================================ |
mbed_official | 354:e67efb2aab0e | 25 | |
mbed_official | 354:e67efb2aab0e | 26 | [..] The device integrates up to 3 operational amplifiers OPAMP1, OPAMP2, |
mbed_official | 354:e67efb2aab0e | 27 | OPAMP3 (OPAMP3 availability depends on device category) |
mbed_official | 354:e67efb2aab0e | 28 | |
mbed_official | 354:e67efb2aab0e | 29 | (#) The OPAMP(s) provides several exclusive running modes. |
mbed_official | 354:e67efb2aab0e | 30 | (+) Standalone mode |
mbed_official | 354:e67efb2aab0e | 31 | (+) Follower mode |
mbed_official | 354:e67efb2aab0e | 32 | |
mbed_official | 354:e67efb2aab0e | 33 | (#) The OPAMP(s) provide(s) calibration capabilities. |
mbed_official | 354:e67efb2aab0e | 34 | (+) Calibration aims at correcting some offset for running mode. |
mbed_official | 354:e67efb2aab0e | 35 | (+) The OPAMP uses either factory calibration settings OR user defined |
mbed_official | 354:e67efb2aab0e | 36 | calibration (trimming) settings (i.e. trimming mode). |
mbed_official | 354:e67efb2aab0e | 37 | (+) The user defined settings can be figured out using self calibration |
mbed_official | 354:e67efb2aab0e | 38 | handled by HAL_OPAMP_SelfCalibrate, HAL_OPAMPEx_SelfCalibrateAll |
mbed_official | 354:e67efb2aab0e | 39 | (+) HAL_OPAMP_SelfCalibrate: |
mbed_official | 354:e67efb2aab0e | 40 | (++) Runs automatically the calibration in 2 steps: for transistors |
mbed_official | 354:e67efb2aab0e | 41 | differential pair high (PMOS) or low (NMOS) |
mbed_official | 354:e67efb2aab0e | 42 | (++) Enables the user trimming mode |
mbed_official | 354:e67efb2aab0e | 43 | (++) Updates the init structure with trimming values with fresh calibration |
mbed_official | 354:e67efb2aab0e | 44 | results. |
mbed_official | 354:e67efb2aab0e | 45 | The user may store the calibration results for larger |
mbed_official | 354:e67efb2aab0e | 46 | (ex monitoring the trimming as a function of temperature |
mbed_official | 354:e67efb2aab0e | 47 | for instance) |
mbed_official | 354:e67efb2aab0e | 48 | (++) for devices having several OPAMPs, HAL_OPAMPEx_SelfCalibrateAll |
mbed_official | 354:e67efb2aab0e | 49 | runs calibration of all OPAMPs in parallel to save trimming search |
mbed_official | 354:e67efb2aab0e | 50 | wait time. |
mbed_official | 354:e67efb2aab0e | 51 | |
mbed_official | 354:e67efb2aab0e | 52 | (#) Running mode: Standalone mode |
mbed_official | 354:e67efb2aab0e | 53 | (+) Gain is set externally (gain depends on external loads). |
mbed_official | 354:e67efb2aab0e | 54 | (+) Follower mode also possible externally by connecting the inverting input to |
mbed_official | 354:e67efb2aab0e | 55 | the output. |
mbed_official | 354:e67efb2aab0e | 56 | |
mbed_official | 354:e67efb2aab0e | 57 | (#) Running mode: Follower mode |
mbed_official | 354:e67efb2aab0e | 58 | (+) No Inverting Input is connected. |
mbed_official | 354:e67efb2aab0e | 59 | (+) The OPAMP(s) output(s) are internally connected to inverting input |
mbed_official | 354:e67efb2aab0e | 60 | |
mbed_official | 354:e67efb2aab0e | 61 | (#) The OPAMPs inverting input can be selected among the list shown |
mbed_official | 354:e67efb2aab0e | 62 | in table below. |
mbed_official | 354:e67efb2aab0e | 63 | |
mbed_official | 354:e67efb2aab0e | 64 | (#) The OPAMPs non inverting input can be selected among the list shown |
mbed_official | 354:e67efb2aab0e | 65 | in table below. |
mbed_official | 354:e67efb2aab0e | 66 | |
mbed_official | 354:e67efb2aab0e | 67 | [..] Table 1. OPAMPs inverting/non-inverting inputs for STM32L1 devices: |
mbed_official | 354:e67efb2aab0e | 68 | |
mbed_official | 354:e67efb2aab0e | 69 | +--------------------------------------------------------------------------+ |
mbed_official | 354:e67efb2aab0e | 70 | | | HAL param | OPAMP1 | OPAMP2 | OPAMP3(4) | |
mbed_official | 354:e67efb2aab0e | 71 | | | name | | | | |
mbed_official | 354:e67efb2aab0e | 72 | |----------------|------------|--------------|--------------|--------------| |
mbed_official | 354:e67efb2aab0e | 73 | | Inverting | VM0 | PA2 | PA7 | PC2 | |
mbed_official | 354:e67efb2aab0e | 74 | | input (1) | VM1 | VINM pin (2) | VINM pin (2) | VINM pin (2) | |
mbed_official | 354:e67efb2aab0e | 75 | |----------------|------------|--------------|--------------|--------------| |
mbed_official | 354:e67efb2aab0e | 76 | | Non Inverting | VP0 | PA1 | PA6 | PC1 | |
mbed_official | 354:e67efb2aab0e | 77 | | input | DAC_CH1 (3)| DAC_CH1 | DAC_CH1 | --- | |
mbed_official | 354:e67efb2aab0e | 78 | | | DAC_CH2 (3)| --- | DAC_CH2 | DAC_CH2 | |
mbed_official | 354:e67efb2aab0e | 79 | +--------------------------------------------------------------------------+ |
mbed_official | 354:e67efb2aab0e | 80 | (1): NA in follower mode. |
mbed_official | 354:e67efb2aab0e | 81 | (2): OPAMP input OPAMPx_VINM are dedicated OPAMP pins, their availability |
mbed_official | 354:e67efb2aab0e | 82 | depends on device package. |
mbed_official | 354:e67efb2aab0e | 83 | (3): DAC channels 1 and 2 are connected internally to OPAMP. Nevertheless, |
mbed_official | 354:e67efb2aab0e | 84 | I/O pins connected to DAC can still be used as DAC output (pins PA4 |
mbed_official | 354:e67efb2aab0e | 85 | and PA5). |
mbed_official | 354:e67efb2aab0e | 86 | (4): OPAMP3 availability depends on device category. |
mbed_official | 354:e67efb2aab0e | 87 | |
mbed_official | 354:e67efb2aab0e | 88 | |
mbed_official | 354:e67efb2aab0e | 89 | [..] Table 2. OPAMPs outputs for STM32L1 devices: |
mbed_official | 354:e67efb2aab0e | 90 | |
mbed_official | 354:e67efb2aab0e | 91 | +--------------------------------------------------------+ |
mbed_official | 354:e67efb2aab0e | 92 | | | OPAMP1 | OPAMP2 | OPAMP3(4) | |
mbed_official | 354:e67efb2aab0e | 93 | |-----------------|------------|------------|------------| |
mbed_official | 354:e67efb2aab0e | 94 | | Output | PA3 | PB0 | PC3 | |
mbed_official | 354:e67efb2aab0e | 95 | +--------------------------------------------------------+ |
mbed_official | 354:e67efb2aab0e | 96 | (4) : OPAMP3 availability depends on device category |
mbed_official | 354:e67efb2aab0e | 97 | |
mbed_official | 354:e67efb2aab0e | 98 | |
mbed_official | 354:e67efb2aab0e | 99 | ##### How to use this driver ##### |
mbed_official | 354:e67efb2aab0e | 100 | ================================================================================ |
mbed_official | 354:e67efb2aab0e | 101 | [..] |
mbed_official | 354:e67efb2aab0e | 102 | |
mbed_official | 354:e67efb2aab0e | 103 | *** Calibration *** |
mbed_official | 354:e67efb2aab0e | 104 | ============================================ |
mbed_official | 354:e67efb2aab0e | 105 | To run the opamp calibration self calibration: |
mbed_official | 354:e67efb2aab0e | 106 | |
mbed_official | 354:e67efb2aab0e | 107 | (#) Start calibration using HAL_OPAMP_SelfCalibrate. |
mbed_official | 354:e67efb2aab0e | 108 | Store the calibration results. |
mbed_official | 354:e67efb2aab0e | 109 | |
mbed_official | 354:e67efb2aab0e | 110 | *** Running mode *** |
mbed_official | 354:e67efb2aab0e | 111 | ============================================ |
mbed_official | 354:e67efb2aab0e | 112 | |
mbed_official | 354:e67efb2aab0e | 113 | To use the opamp, perform the following steps: |
mbed_official | 354:e67efb2aab0e | 114 | |
mbed_official | 354:e67efb2aab0e | 115 | (#) Fill in the HAL_OPAMP_MspInit() to |
mbed_official | 354:e67efb2aab0e | 116 | (+) Enable the OPAMP Peripheral clock using macro "__OPAMP_CLK_ENABLE()" |
mbed_official | 354:e67efb2aab0e | 117 | (++) Configure the opamp input AND output in analog mode using |
mbed_official | 354:e67efb2aab0e | 118 | HAL_GPIO_Init() to map the opamp output to the GPIO pin. |
mbed_official | 354:e67efb2aab0e | 119 | |
mbed_official | 354:e67efb2aab0e | 120 | (#) Configure the opamp using HAL_OPAMP_Init() function: |
mbed_official | 354:e67efb2aab0e | 121 | (+) Select the mode |
mbed_official | 354:e67efb2aab0e | 122 | (+) Select the inverting input |
mbed_official | 354:e67efb2aab0e | 123 | (+) Select the non-inverting input |
mbed_official | 354:e67efb2aab0e | 124 | (+) Select either factory or user defined trimming mode. |
mbed_official | 354:e67efb2aab0e | 125 | (+) If the user defined trimming mode is enabled, select PMOS & NMOS trimming values |
mbed_official | 354:e67efb2aab0e | 126 | (typ. settings returned by HAL_OPAMP_SelfCalibrate function). |
mbed_official | 354:e67efb2aab0e | 127 | |
mbed_official | 354:e67efb2aab0e | 128 | (#) Enable the opamp using HAL_OPAMP_Start() function. |
mbed_official | 354:e67efb2aab0e | 129 | |
mbed_official | 354:e67efb2aab0e | 130 | (#) Disable the opamp using HAL_OPAMP_Stop() function. |
mbed_official | 354:e67efb2aab0e | 131 | |
mbed_official | 354:e67efb2aab0e | 132 | (#) Lock the opamp in running mode using HAL_OPAMP_Lock() function. |
mbed_official | 354:e67efb2aab0e | 133 | Caution: On STM32L1, HAL OPAMP lock is software lock only (not |
mbed_official | 354:e67efb2aab0e | 134 | hardware lock as on some other STM32 devices) |
mbed_official | 354:e67efb2aab0e | 135 | |
mbed_official | 354:e67efb2aab0e | 136 | (#) If needed, unlock the opamp using HAL_OPAMPEx_Unlock() function. |
mbed_official | 354:e67efb2aab0e | 137 | |
mbed_official | 354:e67efb2aab0e | 138 | *** Running mode: change of configuration while OPAMP ON *** |
mbed_official | 354:e67efb2aab0e | 139 | ============================================ |
mbed_official | 354:e67efb2aab0e | 140 | To Re-configure OPAMP when OPAMP is ON (change on the fly) |
mbed_official | 354:e67efb2aab0e | 141 | (#) If needed, Fill in the HAL_OPAMP_MspInit() |
mbed_official | 354:e67efb2aab0e | 142 | (+) This is the case for instance if you wish to use new OPAMP I/O |
mbed_official | 354:e67efb2aab0e | 143 | |
mbed_official | 354:e67efb2aab0e | 144 | (#) Configure the opamp using HAL_OPAMP_Init() function: |
mbed_official | 354:e67efb2aab0e | 145 | (+) As in configure case, selects first the parameters you wish to modify. |
mbed_official | 354:e67efb2aab0e | 146 | |
mbed_official | 354:e67efb2aab0e | 147 | @endverbatim |
mbed_official | 354:e67efb2aab0e | 148 | ****************************************************************************** |
mbed_official | 354:e67efb2aab0e | 149 | * @attention |
mbed_official | 354:e67efb2aab0e | 150 | * |
mbed_official | 354:e67efb2aab0e | 151 | * <h2><center>© COPYRIGHT(c) 2014 STMicroelectronics</center></h2> |
mbed_official | 354:e67efb2aab0e | 152 | * |
mbed_official | 354:e67efb2aab0e | 153 | * Redistribution and use in source and binary forms, with or without modification, |
mbed_official | 354:e67efb2aab0e | 154 | * are permitted provided that the following conditions are met: |
mbed_official | 354:e67efb2aab0e | 155 | * 1. Redistributions of source code must retain the above copyright notice, |
mbed_official | 354:e67efb2aab0e | 156 | * this list of conditions and the following disclaimer. |
mbed_official | 354:e67efb2aab0e | 157 | * 2. Redistributions in binary form must reproduce the above copyright notice, |
mbed_official | 354:e67efb2aab0e | 158 | * this list of conditions and the following disclaimer in the documentation |
mbed_official | 354:e67efb2aab0e | 159 | * and/or other materials provided with the distribution. |
mbed_official | 354:e67efb2aab0e | 160 | * 3. Neither the name of STMicroelectronics nor the names of its contributors |
mbed_official | 354:e67efb2aab0e | 161 | * may be used to endorse or promote products derived from this software |
mbed_official | 354:e67efb2aab0e | 162 | * without specific prior written permission. |
mbed_official | 354:e67efb2aab0e | 163 | * |
mbed_official | 354:e67efb2aab0e | 164 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" |
mbed_official | 354:e67efb2aab0e | 165 | * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
mbed_official | 354:e67efb2aab0e | 166 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
mbed_official | 354:e67efb2aab0e | 167 | * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE |
mbed_official | 354:e67efb2aab0e | 168 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
mbed_official | 354:e67efb2aab0e | 169 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR |
mbed_official | 354:e67efb2aab0e | 170 | * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER |
mbed_official | 354:e67efb2aab0e | 171 | * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, |
mbed_official | 354:e67efb2aab0e | 172 | * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
mbed_official | 354:e67efb2aab0e | 173 | * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
mbed_official | 354:e67efb2aab0e | 174 | * |
mbed_official | 354:e67efb2aab0e | 175 | ****************************************************************************** |
mbed_official | 354:e67efb2aab0e | 176 | */ |
mbed_official | 354:e67efb2aab0e | 177 | |
mbed_official | 354:e67efb2aab0e | 178 | /* Includes ------------------------------------------------------------------*/ |
mbed_official | 354:e67efb2aab0e | 179 | #include "stm32l1xx_hal.h" |
mbed_official | 354:e67efb2aab0e | 180 | |
mbed_official | 354:e67efb2aab0e | 181 | /** @addtogroup STM32L1xx_HAL_Driver |
mbed_official | 354:e67efb2aab0e | 182 | * @{ |
mbed_official | 354:e67efb2aab0e | 183 | */ |
mbed_official | 354:e67efb2aab0e | 184 | |
mbed_official | 354:e67efb2aab0e | 185 | /** @defgroup OPAMP OPAMP |
mbed_official | 354:e67efb2aab0e | 186 | * @brief OPAMP HAL module driver |
mbed_official | 354:e67efb2aab0e | 187 | * @{ |
mbed_official | 354:e67efb2aab0e | 188 | */ |
mbed_official | 354:e67efb2aab0e | 189 | |
mbed_official | 354:e67efb2aab0e | 190 | #ifdef HAL_OPAMP_MODULE_ENABLED |
mbed_official | 354:e67efb2aab0e | 191 | |
mbed_official | 354:e67efb2aab0e | 192 | #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) |
mbed_official | 354:e67efb2aab0e | 193 | |
mbed_official | 354:e67efb2aab0e | 194 | /* Private typedef -----------------------------------------------------------*/ |
mbed_official | 354:e67efb2aab0e | 195 | /* Private define ------------------------------------------------------------*/ |
mbed_official | 354:e67efb2aab0e | 196 | /* Private macro -------------------------------------------------------------*/ |
mbed_official | 354:e67efb2aab0e | 197 | /* Private variables ---------------------------------------------------------*/ |
mbed_official | 354:e67efb2aab0e | 198 | /* Private function prototypes -----------------------------------------------*/ |
mbed_official | 354:e67efb2aab0e | 199 | /* Private functions ---------------------------------------------------------*/ |
mbed_official | 354:e67efb2aab0e | 200 | |
mbed_official | 354:e67efb2aab0e | 201 | /** @defgroup OPAMP_Exported_Functions OPAMP Exported Functions |
mbed_official | 354:e67efb2aab0e | 202 | * @{ |
mbed_official | 354:e67efb2aab0e | 203 | */ |
mbed_official | 354:e67efb2aab0e | 204 | |
mbed_official | 354:e67efb2aab0e | 205 | /** @defgroup OPAMP_Exported_Functions_Group1 Initialization and de-initialization functions |
mbed_official | 354:e67efb2aab0e | 206 | * @brief Initialization and Configuration functions |
mbed_official | 354:e67efb2aab0e | 207 | * |
mbed_official | 354:e67efb2aab0e | 208 | @verbatim |
mbed_official | 354:e67efb2aab0e | 209 | =============================================================================== |
mbed_official | 354:e67efb2aab0e | 210 | ##### Initialization and de-initialization functions ##### |
mbed_official | 354:e67efb2aab0e | 211 | =============================================================================== |
mbed_official | 354:e67efb2aab0e | 212 | [..] This section provides functions allowing to: |
mbed_official | 354:e67efb2aab0e | 213 | |
mbed_official | 354:e67efb2aab0e | 214 | @endverbatim |
mbed_official | 354:e67efb2aab0e | 215 | * @{ |
mbed_official | 354:e67efb2aab0e | 216 | */ |
mbed_official | 354:e67efb2aab0e | 217 | |
mbed_official | 354:e67efb2aab0e | 218 | /** |
mbed_official | 354:e67efb2aab0e | 219 | * @brief Initializes the OPAMP according to the specified |
mbed_official | 354:e67efb2aab0e | 220 | * parameters in the OPAMP_InitTypeDef and create the associated handle. |
mbed_official | 354:e67efb2aab0e | 221 | * @note If the selected opamp is locked, initialization can't be performed. |
mbed_official | 354:e67efb2aab0e | 222 | * To unlock the configuration, perform a system reset. |
mbed_official | 354:e67efb2aab0e | 223 | * @param hopamp: OPAMP handle |
mbed_official | 354:e67efb2aab0e | 224 | * @retval HAL status |
mbed_official | 354:e67efb2aab0e | 225 | */ |
mbed_official | 354:e67efb2aab0e | 226 | HAL_StatusTypeDef HAL_OPAMP_Init(OPAMP_HandleTypeDef* hopamp) |
mbed_official | 354:e67efb2aab0e | 227 | { |
mbed_official | 354:e67efb2aab0e | 228 | HAL_StatusTypeDef status = HAL_OK; |
mbed_official | 354:e67efb2aab0e | 229 | uint32_t tmp_csr = 0; /* Temporary variable to update register CSR, except bits ANAWSSELx, S7SEL2, OPA_RANGE, OPAxCALOUT */ |
mbed_official | 354:e67efb2aab0e | 230 | |
mbed_official | 354:e67efb2aab0e | 231 | /* Check the OPAMP handle allocation and lock status */ |
mbed_official | 354:e67efb2aab0e | 232 | /* Init not allowed if calibration is ongoing */ |
mbed_official | 354:e67efb2aab0e | 233 | if((hopamp == HAL_NULL) || (hopamp->State == HAL_OPAMP_STATE_BUSYLOCKED) |
mbed_official | 354:e67efb2aab0e | 234 | || (hopamp->State == HAL_OPAMP_STATE_CALIBBUSY) ) |
mbed_official | 354:e67efb2aab0e | 235 | { |
mbed_official | 354:e67efb2aab0e | 236 | status = HAL_ERROR; |
mbed_official | 354:e67efb2aab0e | 237 | } |
mbed_official | 354:e67efb2aab0e | 238 | else |
mbed_official | 354:e67efb2aab0e | 239 | { |
mbed_official | 354:e67efb2aab0e | 240 | /* Check the parameter */ |
mbed_official | 354:e67efb2aab0e | 241 | assert_param(IS_OPAMP_ALL_INSTANCE(hopamp->Instance)); |
mbed_official | 354:e67efb2aab0e | 242 | |
mbed_official | 354:e67efb2aab0e | 243 | /* Set OPAMP parameters */ |
mbed_official | 354:e67efb2aab0e | 244 | assert_param(IS_OPAMP_FUNCTIONAL_NORMALMODE(hopamp->Init.Mode)); |
mbed_official | 354:e67efb2aab0e | 245 | assert_param(IS_OPAMP_NONINVERTING_INPUT(hopamp->Init.NonInvertingInput)); |
mbed_official | 354:e67efb2aab0e | 246 | assert_param(IS_OPAMP_POWERMODE(hopamp->Init.PowerMode)); |
mbed_official | 354:e67efb2aab0e | 247 | assert_param(IS_OPAMP_POWER_SUPPLY_RANGE(hopamp->Init.PowerSupplyRange)); |
mbed_official | 354:e67efb2aab0e | 248 | assert_param(IS_OPAMP_TRIMMING(hopamp->Init.UserTrimming)); |
mbed_official | 354:e67efb2aab0e | 249 | |
mbed_official | 354:e67efb2aab0e | 250 | if (hopamp->Init.Mode != OPAMP_FOLLOWER_MODE) |
mbed_official | 354:e67efb2aab0e | 251 | { |
mbed_official | 354:e67efb2aab0e | 252 | assert_param(IS_OPAMP_INVERTING_INPUT(hopamp->Init.InvertingInput)); |
mbed_official | 354:e67efb2aab0e | 253 | } |
mbed_official | 354:e67efb2aab0e | 254 | |
mbed_official | 354:e67efb2aab0e | 255 | if (hopamp->Init.UserTrimming == OPAMP_TRIMMING_USER) |
mbed_official | 354:e67efb2aab0e | 256 | { |
mbed_official | 354:e67efb2aab0e | 257 | if (hopamp->Init.PowerMode == OPAMP_POWERMODE_NORMAL) |
mbed_official | 354:e67efb2aab0e | 258 | { |
mbed_official | 354:e67efb2aab0e | 259 | assert_param(IS_OPAMP_TRIMMINGVALUE(hopamp->Init.TrimmingValueP)); |
mbed_official | 354:e67efb2aab0e | 260 | assert_param(IS_OPAMP_TRIMMINGVALUE(hopamp->Init.TrimmingValueN)); |
mbed_official | 354:e67efb2aab0e | 261 | } |
mbed_official | 354:e67efb2aab0e | 262 | else |
mbed_official | 354:e67efb2aab0e | 263 | { |
mbed_official | 354:e67efb2aab0e | 264 | assert_param(IS_OPAMP_TRIMMINGVALUE(hopamp->Init.TrimmingValuePLowPower)); |
mbed_official | 354:e67efb2aab0e | 265 | assert_param(IS_OPAMP_TRIMMINGVALUE(hopamp->Init.TrimmingValueNLowPower)); |
mbed_official | 354:e67efb2aab0e | 266 | } |
mbed_official | 354:e67efb2aab0e | 267 | } |
mbed_official | 354:e67efb2aab0e | 268 | |
mbed_official | 354:e67efb2aab0e | 269 | /* Call MSP init function */ |
mbed_official | 354:e67efb2aab0e | 270 | HAL_OPAMP_MspInit(hopamp); |
mbed_official | 354:e67efb2aab0e | 271 | |
mbed_official | 354:e67efb2aab0e | 272 | |
mbed_official | 354:e67efb2aab0e | 273 | /* Set OPAMP parameters */ |
mbed_official | 354:e67efb2aab0e | 274 | /* - Set internal switches in function of: */ |
mbed_official | 354:e67efb2aab0e | 275 | /* - OPAMP selected mode: standalone or follower. */ |
mbed_official | 354:e67efb2aab0e | 276 | /* - Non-inverting input connection */ |
mbed_official | 354:e67efb2aab0e | 277 | /* - Inverting input connection */ |
mbed_official | 354:e67efb2aab0e | 278 | /* - Set power supply range */ |
mbed_official | 354:e67efb2aab0e | 279 | /* - Set power mode and associated calibration parameters */ |
mbed_official | 354:e67efb2aab0e | 280 | |
mbed_official | 354:e67efb2aab0e | 281 | /* Get OPAMP CSR register into temporary variable */ |
mbed_official | 354:e67efb2aab0e | 282 | tmp_csr = OPAMP->CSR; |
mbed_official | 354:e67efb2aab0e | 283 | |
mbed_official | 354:e67efb2aab0e | 284 | /* Open all switches on non-inverting input, inverting input and output */ |
mbed_official | 354:e67efb2aab0e | 285 | /* feedback. */ |
mbed_official | 354:e67efb2aab0e | 286 | CLEAR_BIT(tmp_csr, __OPAMP_CSR_ALL_SWITCHES(hopamp)); |
mbed_official | 354:e67efb2aab0e | 287 | |
mbed_official | 354:e67efb2aab0e | 288 | /* Set internal switches in function of OPAMP mode selected: standalone */ |
mbed_official | 354:e67efb2aab0e | 289 | /* or follower. */ |
mbed_official | 354:e67efb2aab0e | 290 | /* If follower mode is selected, feedback switch S3 is closed and */ |
mbed_official | 354:e67efb2aab0e | 291 | /* inverting inputs switches are let opened. */ |
mbed_official | 354:e67efb2aab0e | 292 | /* If standalone mode is selected, feedback switch S3 is let opened and */ |
mbed_official | 354:e67efb2aab0e | 293 | /* the selected inverting inputs switch is closed. */ |
mbed_official | 354:e67efb2aab0e | 294 | if (hopamp->Init.Mode == OPAMP_FOLLOWER_MODE) |
mbed_official | 354:e67efb2aab0e | 295 | { |
mbed_official | 354:e67efb2aab0e | 296 | /* Follower mode: Close switches S3 and SanB */ |
mbed_official | 354:e67efb2aab0e | 297 | SET_BIT(tmp_csr, __OPAMP_CSR_S3SELX(hopamp)); |
mbed_official | 354:e67efb2aab0e | 298 | } |
mbed_official | 354:e67efb2aab0e | 299 | else |
mbed_official | 354:e67efb2aab0e | 300 | { |
mbed_official | 354:e67efb2aab0e | 301 | /* Set internal switches in function of inverting input selected: */ |
mbed_official | 354:e67efb2aab0e | 302 | /* Close switch to connect comparator inverting input to the selected */ |
mbed_official | 354:e67efb2aab0e | 303 | /* input: dedicated IO pin or alternative IO pin available on some */ |
mbed_official | 354:e67efb2aab0e | 304 | /* device packages. */ |
mbed_official | 354:e67efb2aab0e | 305 | if (hopamp->Init.InvertingInput == OPAMP_INVERTINGINPUT_VM0) |
mbed_official | 354:e67efb2aab0e | 306 | { |
mbed_official | 354:e67efb2aab0e | 307 | /* Close switch to connect comparator non-inverting input to */ |
mbed_official | 354:e67efb2aab0e | 308 | /* dedicated IO pin low-leakage. */ |
mbed_official | 354:e67efb2aab0e | 309 | SET_BIT(tmp_csr, __OPAMP_CSR_S4SELX(hopamp)); |
mbed_official | 354:e67efb2aab0e | 310 | } |
mbed_official | 354:e67efb2aab0e | 311 | else |
mbed_official | 354:e67efb2aab0e | 312 | { |
mbed_official | 354:e67efb2aab0e | 313 | /* Close switch to connect comparator inverting input to alternative */ |
mbed_official | 354:e67efb2aab0e | 314 | /* IO pin available on some device packages. */ |
mbed_official | 354:e67efb2aab0e | 315 | SET_BIT(tmp_csr, __OPAMP_CSR_ANAWSELX(hopamp)); |
mbed_official | 354:e67efb2aab0e | 316 | } |
mbed_official | 354:e67efb2aab0e | 317 | } |
mbed_official | 354:e67efb2aab0e | 318 | |
mbed_official | 354:e67efb2aab0e | 319 | /* Set internal switches in function of non-inverting input selected: */ |
mbed_official | 354:e67efb2aab0e | 320 | /* Close switch to connect comparator non-inverting input to the selected */ |
mbed_official | 354:e67efb2aab0e | 321 | /* input: dedicated IO pin or DAC channel. */ |
mbed_official | 354:e67efb2aab0e | 322 | if (hopamp->Init.NonInvertingInput == OPAMP_NONINVERTINGINPUT_VP0) |
mbed_official | 354:e67efb2aab0e | 323 | { |
mbed_official | 354:e67efb2aab0e | 324 | /* Close switch to connect comparator non-inverting input to */ |
mbed_official | 354:e67efb2aab0e | 325 | /* dedicated IO pin low-leakage. */ |
mbed_official | 354:e67efb2aab0e | 326 | SET_BIT(tmp_csr, __OPAMP_CSR_S5SELX(hopamp)); |
mbed_official | 354:e67efb2aab0e | 327 | } |
mbed_official | 354:e67efb2aab0e | 328 | else if (hopamp->Init.NonInvertingInput == OPAMP_NONINVERTINGINPUT_DAC_CH1) |
mbed_official | 354:e67efb2aab0e | 329 | { |
mbed_official | 354:e67efb2aab0e | 330 | |
mbed_official | 354:e67efb2aab0e | 331 | /* Particular case for connection to DAC channel 1: */ |
mbed_official | 354:e67efb2aab0e | 332 | /* OPAMP_NONINVERTINGINPUT_DAC_CH1 available on OPAMP1 and OPAMP2 only */ |
mbed_official | 354:e67efb2aab0e | 333 | /* (OPAMP3 availability depends on device category). */ |
mbed_official | 354:e67efb2aab0e | 334 | if ((hopamp->Instance == OPAMP1) || (hopamp->Instance == OPAMP2)) |
mbed_official | 354:e67efb2aab0e | 335 | { |
mbed_official | 354:e67efb2aab0e | 336 | /* Close switch to connect comparator non-inverting input to */ |
mbed_official | 354:e67efb2aab0e | 337 | /* DAC channel 1. */ |
mbed_official | 354:e67efb2aab0e | 338 | SET_BIT(tmp_csr, __OPAMP_CSR_S6SELX(hopamp)); |
mbed_official | 354:e67efb2aab0e | 339 | } |
mbed_official | 354:e67efb2aab0e | 340 | else |
mbed_official | 354:e67efb2aab0e | 341 | { |
mbed_official | 354:e67efb2aab0e | 342 | /* Set HAL status to error if another OPAMP instance as OPAMP1 or */ |
mbed_official | 354:e67efb2aab0e | 343 | /* OPAMP2 is intended to be connected to DAC channel 2. */ |
mbed_official | 354:e67efb2aab0e | 344 | status = HAL_ERROR; |
mbed_official | 354:e67efb2aab0e | 345 | } |
mbed_official | 354:e67efb2aab0e | 346 | } |
mbed_official | 354:e67efb2aab0e | 347 | else /* if (hopamp->Init.NonInvertingInput == */ |
mbed_official | 354:e67efb2aab0e | 348 | /* OPAMP_NONINVERTINGINPUT_DAC_CH2 ) */ |
mbed_official | 354:e67efb2aab0e | 349 | { |
mbed_official | 354:e67efb2aab0e | 350 | /* Particular case for connection to DAC channel 2: */ |
mbed_official | 354:e67efb2aab0e | 351 | /* OPAMP_NONINVERTINGINPUT_DAC_CH2 available on OPAMP2 and OPAMP3 only */ |
mbed_official | 354:e67efb2aab0e | 352 | /* (OPAMP3 availability depends on device category). */ |
mbed_official | 354:e67efb2aab0e | 353 | if (hopamp->Instance == OPAMP2) |
mbed_official | 354:e67efb2aab0e | 354 | { |
mbed_official | 354:e67efb2aab0e | 355 | /* Close switch to connect comparator non-inverting input to */ |
mbed_official | 354:e67efb2aab0e | 356 | /* DAC channel 2. */ |
mbed_official | 354:e67efb2aab0e | 357 | SET_BIT(tmp_csr, OPAMP_CSR_S7SEL2); |
mbed_official | 354:e67efb2aab0e | 358 | } |
mbed_official | 354:e67efb2aab0e | 359 | /* If OPAMP3 is selected (if available) */ |
mbed_official | 354:e67efb2aab0e | 360 | else if (hopamp->Instance != OPAMP1) |
mbed_official | 354:e67efb2aab0e | 361 | { |
mbed_official | 354:e67efb2aab0e | 362 | /* Close switch to connect comparator non-inverting input to */ |
mbed_official | 354:e67efb2aab0e | 363 | /* DAC channel 2. */ |
mbed_official | 354:e67efb2aab0e | 364 | SET_BIT(tmp_csr, __OPAMP_CSR_S6SELX(hopamp)); |
mbed_official | 354:e67efb2aab0e | 365 | } |
mbed_official | 354:e67efb2aab0e | 366 | else |
mbed_official | 354:e67efb2aab0e | 367 | { |
mbed_official | 354:e67efb2aab0e | 368 | /* Set HAL status to error if another OPAMP instance as OPAMP2 or */ |
mbed_official | 354:e67efb2aab0e | 369 | /* OPAMP3 (if available) is intended to be connected to DAC channel 2.*/ |
mbed_official | 354:e67efb2aab0e | 370 | status = HAL_ERROR; |
mbed_official | 354:e67efb2aab0e | 371 | } |
mbed_official | 354:e67efb2aab0e | 372 | } |
mbed_official | 354:e67efb2aab0e | 373 | |
mbed_official | 354:e67efb2aab0e | 374 | /* Continue OPAMP configuration if settings of switches are correct */ |
mbed_official | 354:e67efb2aab0e | 375 | if (status != HAL_ERROR) |
mbed_official | 354:e67efb2aab0e | 376 | { |
mbed_official | 354:e67efb2aab0e | 377 | /* Set power mode and associated calibration parameters */ |
mbed_official | 354:e67efb2aab0e | 378 | if (hopamp->Init.PowerMode != OPAMP_POWERMODE_LOWPOWER) |
mbed_official | 354:e67efb2aab0e | 379 | { |
mbed_official | 354:e67efb2aab0e | 380 | /* Set normal mode */ |
mbed_official | 354:e67efb2aab0e | 381 | CLEAR_BIT(tmp_csr, __OPAMP_CSR_OPAXLPM(hopamp)); |
mbed_official | 354:e67efb2aab0e | 382 | |
mbed_official | 354:e67efb2aab0e | 383 | if (hopamp->Init.UserTrimming == OPAMP_TRIMMING_USER) |
mbed_official | 354:e67efb2aab0e | 384 | { |
mbed_official | 354:e67efb2aab0e | 385 | /* Set calibration mode (factory or user) and values for */ |
mbed_official | 354:e67efb2aab0e | 386 | /* transistors differential pair high (PMOS) and low (NMOS) for */ |
mbed_official | 354:e67efb2aab0e | 387 | /* normal mode. */ |
mbed_official | 354:e67efb2aab0e | 388 | MODIFY_REG(OPAMP->OTR, OPAMP_OTR_OT_USER | |
mbed_official | 354:e67efb2aab0e | 389 | __OPAMP_OFFSET_TRIM_SET(hopamp, OPAMP_FACTORYTRIMMING_N, OPAMP_TRIM_VALUE_MASK) | |
mbed_official | 354:e67efb2aab0e | 390 | __OPAMP_OFFSET_TRIM_SET(hopamp, OPAMP_FACTORYTRIMMING_P, OPAMP_TRIM_VALUE_MASK) , |
mbed_official | 354:e67efb2aab0e | 391 | hopamp->Init.UserTrimming | |
mbed_official | 354:e67efb2aab0e | 392 | __OPAMP_OFFSET_TRIM_SET(hopamp, OPAMP_FACTORYTRIMMING_N, hopamp->Init.TrimmingValueN) | |
mbed_official | 354:e67efb2aab0e | 393 | __OPAMP_OFFSET_TRIM_SET(hopamp, OPAMP_FACTORYTRIMMING_P, hopamp->Init.TrimmingValueP) ); |
mbed_official | 354:e67efb2aab0e | 394 | } |
mbed_official | 354:e67efb2aab0e | 395 | else |
mbed_official | 354:e67efb2aab0e | 396 | { |
mbed_official | 354:e67efb2aab0e | 397 | /* Set calibration mode to factory */ |
mbed_official | 354:e67efb2aab0e | 398 | CLEAR_BIT(OPAMP->OTR, OPAMP_OTR_OT_USER); |
mbed_official | 354:e67efb2aab0e | 399 | } |
mbed_official | 354:e67efb2aab0e | 400 | |
mbed_official | 354:e67efb2aab0e | 401 | } |
mbed_official | 354:e67efb2aab0e | 402 | else |
mbed_official | 354:e67efb2aab0e | 403 | { |
mbed_official | 354:e67efb2aab0e | 404 | /* Set low power mode */ |
mbed_official | 354:e67efb2aab0e | 405 | SET_BIT(tmp_csr, __OPAMP_CSR_OPAXLPM(hopamp)); |
mbed_official | 354:e67efb2aab0e | 406 | |
mbed_official | 354:e67efb2aab0e | 407 | if (hopamp->Init.UserTrimming == OPAMP_TRIMMING_USER) |
mbed_official | 354:e67efb2aab0e | 408 | { |
mbed_official | 354:e67efb2aab0e | 409 | /* Set calibration mode to user trimming */ |
mbed_official | 354:e67efb2aab0e | 410 | SET_BIT(OPAMP->OTR, OPAMP_OTR_OT_USER); |
mbed_official | 354:e67efb2aab0e | 411 | |
mbed_official | 354:e67efb2aab0e | 412 | /* Set values for transistors differential pair high (PMOS) and low */ |
mbed_official | 354:e67efb2aab0e | 413 | /* (NMOS) for low power mode. */ |
mbed_official | 354:e67efb2aab0e | 414 | MODIFY_REG(OPAMP->LPOTR, __OPAMP_OFFSET_TRIM_SET(hopamp, OPAMP_FACTORYTRIMMING_N, OPAMP_TRIM_VALUE_MASK) | |
mbed_official | 354:e67efb2aab0e | 415 | __OPAMP_OFFSET_TRIM_SET(hopamp, OPAMP_FACTORYTRIMMING_P, OPAMP_TRIM_VALUE_MASK) , |
mbed_official | 354:e67efb2aab0e | 416 | __OPAMP_OFFSET_TRIM_SET(hopamp, OPAMP_FACTORYTRIMMING_N, hopamp->Init.TrimmingValueNLowPower) | |
mbed_official | 354:e67efb2aab0e | 417 | __OPAMP_OFFSET_TRIM_SET(hopamp, OPAMP_FACTORYTRIMMING_P, hopamp->Init.TrimmingValuePLowPower) ); |
mbed_official | 354:e67efb2aab0e | 418 | } |
mbed_official | 354:e67efb2aab0e | 419 | else |
mbed_official | 354:e67efb2aab0e | 420 | { |
mbed_official | 354:e67efb2aab0e | 421 | /* Set calibration mode to factory trimming */ |
mbed_official | 354:e67efb2aab0e | 422 | CLEAR_BIT(OPAMP->OTR, OPAMP_OTR_OT_USER); |
mbed_official | 354:e67efb2aab0e | 423 | } |
mbed_official | 354:e67efb2aab0e | 424 | |
mbed_official | 354:e67efb2aab0e | 425 | } |
mbed_official | 354:e67efb2aab0e | 426 | |
mbed_official | 354:e67efb2aab0e | 427 | |
mbed_official | 354:e67efb2aab0e | 428 | /* Configure the power supply range */ |
mbed_official | 354:e67efb2aab0e | 429 | MODIFY_REG(tmp_csr, OPAMP_CSR_AOP_RANGE, |
mbed_official | 354:e67efb2aab0e | 430 | hopamp->Init.PowerSupplyRange); |
mbed_official | 354:e67efb2aab0e | 431 | |
mbed_official | 354:e67efb2aab0e | 432 | /* Set OPAMP CSR register from temporary variable */ |
mbed_official | 354:e67efb2aab0e | 433 | /* This allows to apply all changes on one time, in case of update on */ |
mbed_official | 354:e67efb2aab0e | 434 | /* the fly with OPAMP previously set and running: */ |
mbed_official | 354:e67efb2aab0e | 435 | /* - to avoid hazardous transient switches settings (risk of short */ |
mbed_official | 354:e67efb2aab0e | 436 | /* circuit) */ |
mbed_official | 354:e67efb2aab0e | 437 | /* - to avoid interruption of input signal */ |
mbed_official | 354:e67efb2aab0e | 438 | OPAMP->CSR = tmp_csr; |
mbed_official | 354:e67efb2aab0e | 439 | |
mbed_official | 354:e67efb2aab0e | 440 | |
mbed_official | 354:e67efb2aab0e | 441 | /* Update the OPAMP state */ |
mbed_official | 354:e67efb2aab0e | 442 | /* If coming from state reset: Update from state RESET to state READY */ |
mbed_official | 354:e67efb2aab0e | 443 | /* else: remain in state READY or BUSY (no update) */ |
mbed_official | 354:e67efb2aab0e | 444 | if (hopamp->State == HAL_OPAMP_STATE_RESET) |
mbed_official | 354:e67efb2aab0e | 445 | { |
mbed_official | 354:e67efb2aab0e | 446 | hopamp->State = HAL_OPAMP_STATE_READY; |
mbed_official | 354:e67efb2aab0e | 447 | } |
mbed_official | 354:e67efb2aab0e | 448 | } |
mbed_official | 354:e67efb2aab0e | 449 | } |
mbed_official | 354:e67efb2aab0e | 450 | |
mbed_official | 354:e67efb2aab0e | 451 | return status; |
mbed_official | 354:e67efb2aab0e | 452 | } |
mbed_official | 354:e67efb2aab0e | 453 | |
mbed_official | 354:e67efb2aab0e | 454 | |
mbed_official | 354:e67efb2aab0e | 455 | /** |
mbed_official | 354:e67efb2aab0e | 456 | * @brief DeInitializes the OPAMP peripheral |
mbed_official | 354:e67efb2aab0e | 457 | * @note Deinitialization can't be performed if the OPAMP configuration is locked. |
mbed_official | 354:e67efb2aab0e | 458 | * To unlock the configuration, perform a system reset. |
mbed_official | 354:e67efb2aab0e | 459 | * @param hopamp: OPAMP handle |
mbed_official | 354:e67efb2aab0e | 460 | * @retval HAL status |
mbed_official | 354:e67efb2aab0e | 461 | */ |
mbed_official | 354:e67efb2aab0e | 462 | HAL_StatusTypeDef HAL_OPAMP_DeInit(OPAMP_HandleTypeDef* hopamp) |
mbed_official | 354:e67efb2aab0e | 463 | { |
mbed_official | 354:e67efb2aab0e | 464 | HAL_StatusTypeDef status = HAL_OK; |
mbed_official | 354:e67efb2aab0e | 465 | |
mbed_official | 354:e67efb2aab0e | 466 | /* Check the OPAMP handle allocation */ |
mbed_official | 354:e67efb2aab0e | 467 | /* Check if OPAMP locked */ |
mbed_official | 354:e67efb2aab0e | 468 | /* DeInit not allowed if calibration is ongoing */ |
mbed_official | 354:e67efb2aab0e | 469 | if((hopamp == HAL_NULL) || (hopamp->State == HAL_OPAMP_STATE_BUSYLOCKED) \ |
mbed_official | 354:e67efb2aab0e | 470 | || (hopamp->State == HAL_OPAMP_STATE_CALIBBUSY)) |
mbed_official | 354:e67efb2aab0e | 471 | { |
mbed_official | 354:e67efb2aab0e | 472 | status = HAL_ERROR; |
mbed_official | 354:e67efb2aab0e | 473 | } |
mbed_official | 354:e67efb2aab0e | 474 | else |
mbed_official | 354:e67efb2aab0e | 475 | { |
mbed_official | 354:e67efb2aab0e | 476 | |
mbed_official | 354:e67efb2aab0e | 477 | /* Check the parameter */ |
mbed_official | 354:e67efb2aab0e | 478 | assert_param(IS_OPAMP_ALL_INSTANCE(hopamp->Instance)); |
mbed_official | 354:e67efb2aab0e | 479 | |
mbed_official | 354:e67efb2aab0e | 480 | /* Open all switches on non-inverting input, inverting input and output */ |
mbed_official | 354:e67efb2aab0e | 481 | /* feedback. */ |
mbed_official | 354:e67efb2aab0e | 482 | CLEAR_BIT(OPAMP->CSR, __OPAMP_CSR_ALL_SWITCHES(hopamp)); |
mbed_official | 354:e67efb2aab0e | 483 | |
mbed_official | 354:e67efb2aab0e | 484 | /* DeInit the low level hardware */ |
mbed_official | 354:e67efb2aab0e | 485 | HAL_OPAMP_MspDeInit(hopamp); |
mbed_official | 354:e67efb2aab0e | 486 | |
mbed_official | 354:e67efb2aab0e | 487 | /* Update the OPAMP state*/ |
mbed_official | 354:e67efb2aab0e | 488 | hopamp->State = HAL_OPAMP_STATE_RESET; |
mbed_official | 354:e67efb2aab0e | 489 | } |
mbed_official | 354:e67efb2aab0e | 490 | |
mbed_official | 354:e67efb2aab0e | 491 | /* Process unlocked */ |
mbed_official | 354:e67efb2aab0e | 492 | __HAL_UNLOCK(hopamp); |
mbed_official | 354:e67efb2aab0e | 493 | |
mbed_official | 354:e67efb2aab0e | 494 | return status; |
mbed_official | 354:e67efb2aab0e | 495 | } |
mbed_official | 354:e67efb2aab0e | 496 | |
mbed_official | 354:e67efb2aab0e | 497 | |
mbed_official | 354:e67efb2aab0e | 498 | /** |
mbed_official | 354:e67efb2aab0e | 499 | * @brief Initializes the OPAMP MSP. |
mbed_official | 354:e67efb2aab0e | 500 | * @param hopamp: OPAMP handle |
mbed_official | 354:e67efb2aab0e | 501 | * @retval None |
mbed_official | 354:e67efb2aab0e | 502 | */ |
mbed_official | 354:e67efb2aab0e | 503 | __weak void HAL_OPAMP_MspInit(OPAMP_HandleTypeDef* hopamp) |
mbed_official | 354:e67efb2aab0e | 504 | { |
mbed_official | 354:e67efb2aab0e | 505 | /* NOTE : This function Should not be modified, when the callback is needed, |
mbed_official | 354:e67efb2aab0e | 506 | the function "HAL_OPAMP_MspInit()" must be implemented in the user file. |
mbed_official | 354:e67efb2aab0e | 507 | */ |
mbed_official | 354:e67efb2aab0e | 508 | } |
mbed_official | 354:e67efb2aab0e | 509 | |
mbed_official | 354:e67efb2aab0e | 510 | /** |
mbed_official | 354:e67efb2aab0e | 511 | * @brief DeInitializes OPAMP MSP. |
mbed_official | 354:e67efb2aab0e | 512 | * @param hopamp: OPAMP handle |
mbed_official | 354:e67efb2aab0e | 513 | * @retval None |
mbed_official | 354:e67efb2aab0e | 514 | */ |
mbed_official | 354:e67efb2aab0e | 515 | __weak void HAL_OPAMP_MspDeInit(OPAMP_HandleTypeDef* hopamp) |
mbed_official | 354:e67efb2aab0e | 516 | { |
mbed_official | 354:e67efb2aab0e | 517 | /* NOTE : This function Should not be modified, when the callback is needed, |
mbed_official | 354:e67efb2aab0e | 518 | the function "HAL_OPAMP_MspDeInit()" must be implemented in the user file. |
mbed_official | 354:e67efb2aab0e | 519 | */ |
mbed_official | 354:e67efb2aab0e | 520 | } |
mbed_official | 354:e67efb2aab0e | 521 | |
mbed_official | 354:e67efb2aab0e | 522 | /** |
mbed_official | 354:e67efb2aab0e | 523 | * @} |
mbed_official | 354:e67efb2aab0e | 524 | */ |
mbed_official | 354:e67efb2aab0e | 525 | |
mbed_official | 354:e67efb2aab0e | 526 | |
mbed_official | 354:e67efb2aab0e | 527 | /** @defgroup OPAMP_Exported_Functions_Group2 IO operation functions |
mbed_official | 354:e67efb2aab0e | 528 | * @brief IO operation functions |
mbed_official | 354:e67efb2aab0e | 529 | * |
mbed_official | 354:e67efb2aab0e | 530 | @verbatim |
mbed_official | 354:e67efb2aab0e | 531 | =============================================================================== |
mbed_official | 354:e67efb2aab0e | 532 | ##### IO operation functions ##### |
mbed_official | 354:e67efb2aab0e | 533 | =============================================================================== |
mbed_official | 354:e67efb2aab0e | 534 | [..] |
mbed_official | 354:e67efb2aab0e | 535 | This subsection provides a set of functions allowing to manage the OPAMP |
mbed_official | 354:e67efb2aab0e | 536 | start, stop and calibration actions. |
mbed_official | 354:e67efb2aab0e | 537 | |
mbed_official | 354:e67efb2aab0e | 538 | @endverbatim |
mbed_official | 354:e67efb2aab0e | 539 | * @{ |
mbed_official | 354:e67efb2aab0e | 540 | */ |
mbed_official | 354:e67efb2aab0e | 541 | |
mbed_official | 354:e67efb2aab0e | 542 | /** |
mbed_official | 354:e67efb2aab0e | 543 | * @brief Start the opamp |
mbed_official | 354:e67efb2aab0e | 544 | * @param hopamp: OPAMP handle |
mbed_official | 354:e67efb2aab0e | 545 | * @retval HAL status |
mbed_official | 354:e67efb2aab0e | 546 | */ |
mbed_official | 354:e67efb2aab0e | 547 | |
mbed_official | 354:e67efb2aab0e | 548 | HAL_StatusTypeDef HAL_OPAMP_Start(OPAMP_HandleTypeDef* hopamp) |
mbed_official | 354:e67efb2aab0e | 549 | { |
mbed_official | 354:e67efb2aab0e | 550 | HAL_StatusTypeDef status = HAL_OK; |
mbed_official | 354:e67efb2aab0e | 551 | |
mbed_official | 354:e67efb2aab0e | 552 | /* Check the OPAMP handle allocation */ |
mbed_official | 354:e67efb2aab0e | 553 | /* Check if OPAMP locked */ |
mbed_official | 354:e67efb2aab0e | 554 | if((hopamp == HAL_NULL) || (hopamp->State == HAL_OPAMP_STATE_BUSYLOCKED)) |
mbed_official | 354:e67efb2aab0e | 555 | { |
mbed_official | 354:e67efb2aab0e | 556 | status = HAL_ERROR; |
mbed_official | 354:e67efb2aab0e | 557 | } |
mbed_official | 354:e67efb2aab0e | 558 | else |
mbed_official | 354:e67efb2aab0e | 559 | { |
mbed_official | 354:e67efb2aab0e | 560 | /* Check the parameter */ |
mbed_official | 354:e67efb2aab0e | 561 | assert_param(IS_OPAMP_ALL_INSTANCE(hopamp->Instance)); |
mbed_official | 354:e67efb2aab0e | 562 | |
mbed_official | 354:e67efb2aab0e | 563 | if(hopamp->State == HAL_OPAMP_STATE_READY) |
mbed_official | 354:e67efb2aab0e | 564 | { |
mbed_official | 354:e67efb2aab0e | 565 | /* Enable the selected opamp */ |
mbed_official | 354:e67efb2aab0e | 566 | CLEAR_BIT (OPAMP->CSR, __OPAMP_CSR_OPAXPD(hopamp)); |
mbed_official | 354:e67efb2aab0e | 567 | |
mbed_official | 354:e67efb2aab0e | 568 | /* Update the OPAMP state */ |
mbed_official | 354:e67efb2aab0e | 569 | /* From HAL_OPAMP_STATE_READY to HAL_OPAMP_STATE_BUSY */ |
mbed_official | 354:e67efb2aab0e | 570 | hopamp->State = HAL_OPAMP_STATE_BUSY; |
mbed_official | 354:e67efb2aab0e | 571 | } |
mbed_official | 354:e67efb2aab0e | 572 | else |
mbed_official | 354:e67efb2aab0e | 573 | { |
mbed_official | 354:e67efb2aab0e | 574 | status = HAL_ERROR; |
mbed_official | 354:e67efb2aab0e | 575 | } |
mbed_official | 354:e67efb2aab0e | 576 | |
mbed_official | 354:e67efb2aab0e | 577 | } |
mbed_official | 354:e67efb2aab0e | 578 | return status; |
mbed_official | 354:e67efb2aab0e | 579 | } |
mbed_official | 354:e67efb2aab0e | 580 | |
mbed_official | 354:e67efb2aab0e | 581 | /** |
mbed_official | 354:e67efb2aab0e | 582 | * @brief Stop the opamp |
mbed_official | 354:e67efb2aab0e | 583 | * @param hopamp: OPAMP handle |
mbed_official | 354:e67efb2aab0e | 584 | * @retval HAL status |
mbed_official | 354:e67efb2aab0e | 585 | */ |
mbed_official | 354:e67efb2aab0e | 586 | HAL_StatusTypeDef HAL_OPAMP_Stop(OPAMP_HandleTypeDef* hopamp) |
mbed_official | 354:e67efb2aab0e | 587 | { |
mbed_official | 354:e67efb2aab0e | 588 | HAL_StatusTypeDef status = HAL_OK; |
mbed_official | 354:e67efb2aab0e | 589 | |
mbed_official | 354:e67efb2aab0e | 590 | /* Check the OPAMP handle allocation */ |
mbed_official | 354:e67efb2aab0e | 591 | /* Check if OPAMP locked */ |
mbed_official | 354:e67efb2aab0e | 592 | /* Check if OPAMP calibration ongoing */ |
mbed_official | 354:e67efb2aab0e | 593 | if((hopamp == HAL_NULL) || (hopamp->State == HAL_OPAMP_STATE_BUSYLOCKED) \ |
mbed_official | 354:e67efb2aab0e | 594 | || (hopamp->State == HAL_OPAMP_STATE_CALIBBUSY)) |
mbed_official | 354:e67efb2aab0e | 595 | { |
mbed_official | 354:e67efb2aab0e | 596 | status = HAL_ERROR; |
mbed_official | 354:e67efb2aab0e | 597 | } |
mbed_official | 354:e67efb2aab0e | 598 | else |
mbed_official | 354:e67efb2aab0e | 599 | { |
mbed_official | 354:e67efb2aab0e | 600 | /* Check the parameter */ |
mbed_official | 354:e67efb2aab0e | 601 | assert_param(IS_OPAMP_ALL_INSTANCE(hopamp->Instance)); |
mbed_official | 354:e67efb2aab0e | 602 | |
mbed_official | 354:e67efb2aab0e | 603 | if(hopamp->State == HAL_OPAMP_STATE_BUSY) |
mbed_official | 354:e67efb2aab0e | 604 | { |
mbed_official | 354:e67efb2aab0e | 605 | /* Disable the selected opamp */ |
mbed_official | 354:e67efb2aab0e | 606 | SET_BIT (OPAMP->CSR, __OPAMP_CSR_OPAXPD(hopamp)); |
mbed_official | 354:e67efb2aab0e | 607 | |
mbed_official | 354:e67efb2aab0e | 608 | /* Update the OPAMP state*/ |
mbed_official | 354:e67efb2aab0e | 609 | /* From HAL_OPAMP_STATE_BUSY to HAL_OPAMP_STATE_READY*/ |
mbed_official | 354:e67efb2aab0e | 610 | hopamp->State = HAL_OPAMP_STATE_READY; |
mbed_official | 354:e67efb2aab0e | 611 | } |
mbed_official | 354:e67efb2aab0e | 612 | else |
mbed_official | 354:e67efb2aab0e | 613 | { |
mbed_official | 354:e67efb2aab0e | 614 | status = HAL_ERROR; |
mbed_official | 354:e67efb2aab0e | 615 | } |
mbed_official | 354:e67efb2aab0e | 616 | } |
mbed_official | 354:e67efb2aab0e | 617 | return status; |
mbed_official | 354:e67efb2aab0e | 618 | } |
mbed_official | 354:e67efb2aab0e | 619 | |
mbed_official | 354:e67efb2aab0e | 620 | /** |
mbed_official | 354:e67efb2aab0e | 621 | * @brief Run the self calibration of one OPAMP |
mbed_official | 354:e67efb2aab0e | 622 | * @note Trimming values (PMOS & NMOS) are updated and user trimming is |
mbed_official | 354:e67efb2aab0e | 623 | * enabled is calibration is succesful. |
mbed_official | 354:e67efb2aab0e | 624 | * @note Calibration is performed in the mode specified in OPAMP init |
mbed_official | 354:e67efb2aab0e | 625 | * structure (mode normal or low-power). To perform calibration for |
mbed_official | 354:e67efb2aab0e | 626 | * both modes, repeat this function twice after OPAMP init structure |
mbed_official | 354:e67efb2aab0e | 627 | * accordingly updated. |
mbed_official | 354:e67efb2aab0e | 628 | * @note Calibration runs about 10 ms (5 dichotmy steps, repeated for P |
mbed_official | 354:e67efb2aab0e | 629 | * and N transistors: 10 steps with 1 ms for each step). |
mbed_official | 354:e67efb2aab0e | 630 | * @param hopamp: handle |
mbed_official | 354:e67efb2aab0e | 631 | * @retval Updated offset trimming values (PMOS & NMOS), user trimming is enabled |
mbed_official | 354:e67efb2aab0e | 632 | * @retval HAL status |
mbed_official | 354:e67efb2aab0e | 633 | */ |
mbed_official | 354:e67efb2aab0e | 634 | HAL_StatusTypeDef HAL_OPAMP_SelfCalibrate(OPAMP_HandleTypeDef* hopamp) |
mbed_official | 354:e67efb2aab0e | 635 | { |
mbed_official | 354:e67efb2aab0e | 636 | HAL_StatusTypeDef status = HAL_OK; |
mbed_official | 354:e67efb2aab0e | 637 | |
mbed_official | 354:e67efb2aab0e | 638 | uint32_t* opamp_trimmingvalue = 0; |
mbed_official | 354:e67efb2aab0e | 639 | uint32_t opamp_trimmingvaluen = 0; |
mbed_official | 354:e67efb2aab0e | 640 | uint32_t opamp_trimmingvaluep = 0; |
mbed_official | 354:e67efb2aab0e | 641 | |
mbed_official | 354:e67efb2aab0e | 642 | uint32_t trimming_diff_pair = 0; /* Selection of differential transistors pair high or low */ |
mbed_official | 354:e67efb2aab0e | 643 | |
mbed_official | 354:e67efb2aab0e | 644 | __IO uint32_t* tmp_opamp_reg_trimming; /* Selection of register of trimming depending on power mode: OTR or LPOTR */ |
mbed_official | 354:e67efb2aab0e | 645 | uint32_t tmp_opamp_otr_otuser = 0; /* Selection of bit OPAMP_OTR_OT_USER depending on trimming register pointed: OTR or LPOTR */ |
mbed_official | 354:e67efb2aab0e | 646 | |
mbed_official | 354:e67efb2aab0e | 647 | uint32_t tmp_Opaxcalout_DefaultSate = 0; /* Bit OPAMP_CSR_OPAXCALOUT default state when trimming value is 00000b. Used to detect the bit toggling */ |
mbed_official | 354:e67efb2aab0e | 648 | |
mbed_official | 354:e67efb2aab0e | 649 | uint32_t tmp_OpaxSwitchesContextBackup = 0; |
mbed_official | 354:e67efb2aab0e | 650 | |
mbed_official | 354:e67efb2aab0e | 651 | uint8_t trimming_diff_pair_iteration_count = 0; |
mbed_official | 354:e67efb2aab0e | 652 | uint8_t delta = 0; |
mbed_official | 354:e67efb2aab0e | 653 | |
mbed_official | 354:e67efb2aab0e | 654 | |
mbed_official | 354:e67efb2aab0e | 655 | /* Check the OPAMP handle allocation */ |
mbed_official | 354:e67efb2aab0e | 656 | /* Check if OPAMP locked */ |
mbed_official | 354:e67efb2aab0e | 657 | if((hopamp == HAL_NULL) || (hopamp->State == HAL_OPAMP_STATE_BUSYLOCKED)) |
mbed_official | 354:e67efb2aab0e | 658 | { |
mbed_official | 354:e67efb2aab0e | 659 | status = HAL_ERROR; |
mbed_official | 354:e67efb2aab0e | 660 | } |
mbed_official | 354:e67efb2aab0e | 661 | else |
mbed_official | 354:e67efb2aab0e | 662 | { |
mbed_official | 354:e67efb2aab0e | 663 | |
mbed_official | 354:e67efb2aab0e | 664 | /* Check if OPAMP in calibration mode and calibration not yet enable */ |
mbed_official | 354:e67efb2aab0e | 665 | if(hopamp->State == HAL_OPAMP_STATE_READY) |
mbed_official | 354:e67efb2aab0e | 666 | { |
mbed_official | 354:e67efb2aab0e | 667 | /* Check the parameter */ |
mbed_official | 354:e67efb2aab0e | 668 | assert_param(IS_OPAMP_ALL_INSTANCE(hopamp->Instance)); |
mbed_official | 354:e67efb2aab0e | 669 | assert_param(IS_OPAMP_POWERMODE(hopamp->Init.PowerMode)); |
mbed_official | 354:e67efb2aab0e | 670 | |
mbed_official | 354:e67efb2aab0e | 671 | /* Update OPAMP state */ |
mbed_official | 354:e67efb2aab0e | 672 | hopamp->State = HAL_OPAMP_STATE_CALIBBUSY; |
mbed_official | 354:e67efb2aab0e | 673 | |
mbed_official | 354:e67efb2aab0e | 674 | /* Backup of switches configuration to restore it at the end of the */ |
mbed_official | 354:e67efb2aab0e | 675 | /* calibration. */ |
mbed_official | 354:e67efb2aab0e | 676 | tmp_OpaxSwitchesContextBackup = READ_BIT(OPAMP->CSR, __OPAMP_CSR_ALL_SWITCHES(hopamp)); |
mbed_official | 354:e67efb2aab0e | 677 | |
mbed_official | 354:e67efb2aab0e | 678 | /* Open all switches on non-inverting input, inverting input and output */ |
mbed_official | 354:e67efb2aab0e | 679 | /* feedback. */ |
mbed_official | 354:e67efb2aab0e | 680 | CLEAR_BIT(OPAMP->CSR, __OPAMP_CSR_ALL_SWITCHES(hopamp)); |
mbed_official | 354:e67efb2aab0e | 681 | |
mbed_official | 354:e67efb2aab0e | 682 | /* Set calibration mode to user programmed trimming values */ |
mbed_official | 354:e67efb2aab0e | 683 | SET_BIT(OPAMP->OTR, OPAMP_OTR_OT_USER); |
mbed_official | 354:e67efb2aab0e | 684 | |
mbed_official | 354:e67efb2aab0e | 685 | |
mbed_official | 354:e67efb2aab0e | 686 | /* Select trimming settings depending on power mode */ |
mbed_official | 354:e67efb2aab0e | 687 | if (hopamp->Init.PowerMode == OPAMP_POWERMODE_NORMAL) |
mbed_official | 354:e67efb2aab0e | 688 | { |
mbed_official | 354:e67efb2aab0e | 689 | tmp_opamp_otr_otuser = OPAMP_OTR_OT_USER; |
mbed_official | 354:e67efb2aab0e | 690 | tmp_opamp_reg_trimming = &OPAMP->OTR; |
mbed_official | 354:e67efb2aab0e | 691 | } |
mbed_official | 354:e67efb2aab0e | 692 | else |
mbed_official | 354:e67efb2aab0e | 693 | { |
mbed_official | 354:e67efb2aab0e | 694 | tmp_opamp_otr_otuser = 0x00000000; |
mbed_official | 354:e67efb2aab0e | 695 | tmp_opamp_reg_trimming = &OPAMP->LPOTR; |
mbed_official | 354:e67efb2aab0e | 696 | } |
mbed_official | 354:e67efb2aab0e | 697 | |
mbed_official | 354:e67efb2aab0e | 698 | |
mbed_official | 354:e67efb2aab0e | 699 | /* Enable the selected opamp */ |
mbed_official | 354:e67efb2aab0e | 700 | CLEAR_BIT (OPAMP->CSR, __OPAMP_CSR_OPAXPD(hopamp)); |
mbed_official | 354:e67efb2aab0e | 701 | |
mbed_official | 354:e67efb2aab0e | 702 | /* Perform trimming for both differential transistors pair high and low */ |
mbed_official | 354:e67efb2aab0e | 703 | for (trimming_diff_pair_iteration_count = 0; trimming_diff_pair_iteration_count <=1; trimming_diff_pair_iteration_count++) |
mbed_official | 354:e67efb2aab0e | 704 | { |
mbed_official | 354:e67efb2aab0e | 705 | if (trimming_diff_pair_iteration_count == 0) |
mbed_official | 354:e67efb2aab0e | 706 | { |
mbed_official | 354:e67efb2aab0e | 707 | /* Calibration of transistors differential pair high (NMOS) */ |
mbed_official | 354:e67efb2aab0e | 708 | trimming_diff_pair = OPAMP_FACTORYTRIMMING_N; |
mbed_official | 354:e67efb2aab0e | 709 | opamp_trimmingvalue = &opamp_trimmingvaluen; |
mbed_official | 354:e67efb2aab0e | 710 | |
mbed_official | 354:e67efb2aab0e | 711 | /* Set bit OPAMP_CSR_OPAXCALOUT default state when trimming value */ |
mbed_official | 354:e67efb2aab0e | 712 | /* is 00000b. Used to detect the bit toggling during trimming. */ |
mbed_official | 354:e67efb2aab0e | 713 | tmp_Opaxcalout_DefaultSate = RESET; |
mbed_official | 354:e67efb2aab0e | 714 | |
mbed_official | 354:e67efb2aab0e | 715 | /* Enable calibration for N differential pair */ |
mbed_official | 354:e67efb2aab0e | 716 | MODIFY_REG(OPAMP->CSR, __OPAMP_CSR_OPAXCAL_L(hopamp), |
mbed_official | 354:e67efb2aab0e | 717 | __OPAMP_CSR_OPAXCAL_H(hopamp) ); |
mbed_official | 354:e67efb2aab0e | 718 | } |
mbed_official | 354:e67efb2aab0e | 719 | else /* (trimming_diff_pair_iteration_count == 1) */ |
mbed_official | 354:e67efb2aab0e | 720 | { |
mbed_official | 354:e67efb2aab0e | 721 | /* Calibration of transistors differential pair low (PMOS) */ |
mbed_official | 354:e67efb2aab0e | 722 | trimming_diff_pair = OPAMP_FACTORYTRIMMING_P; |
mbed_official | 354:e67efb2aab0e | 723 | opamp_trimmingvalue = &opamp_trimmingvaluep; |
mbed_official | 354:e67efb2aab0e | 724 | |
mbed_official | 354:e67efb2aab0e | 725 | /* Set bit OPAMP_CSR_OPAXCALOUT default state when trimming value */ |
mbed_official | 354:e67efb2aab0e | 726 | /* is 00000b. Used to detect the bit toggling during trimming. */ |
mbed_official | 354:e67efb2aab0e | 727 | tmp_Opaxcalout_DefaultSate = __OPAMP_CSR_OPAXCALOUT(hopamp); |
mbed_official | 354:e67efb2aab0e | 728 | |
mbed_official | 354:e67efb2aab0e | 729 | /* Enable calibration for P differential pair */ |
mbed_official | 354:e67efb2aab0e | 730 | MODIFY_REG(OPAMP->CSR, __OPAMP_CSR_OPAXCAL_H(hopamp), |
mbed_official | 354:e67efb2aab0e | 731 | __OPAMP_CSR_OPAXCAL_L(hopamp) ); |
mbed_official | 354:e67efb2aab0e | 732 | } |
mbed_official | 354:e67efb2aab0e | 733 | |
mbed_official | 354:e67efb2aab0e | 734 | |
mbed_official | 354:e67efb2aab0e | 735 | /* Perform calibration parameter search by dichotomy sweep */ |
mbed_official | 354:e67efb2aab0e | 736 | /* - Delta initial value 16: for 5 dichotomy steps: 16 for the */ |
mbed_official | 354:e67efb2aab0e | 737 | /* initial range, then successive delta sweeps (8, 4, 2, 1). */ |
mbed_official | 354:e67efb2aab0e | 738 | /* can extend the search range to +/- 15 units. */ |
mbed_official | 354:e67efb2aab0e | 739 | /* - Trimming initial value 15: search range will go from 0 to 30 */ |
mbed_official | 354:e67efb2aab0e | 740 | /* (Trimming value 31 is forbidden). */ |
mbed_official | 354:e67efb2aab0e | 741 | *opamp_trimmingvalue = 15; |
mbed_official | 354:e67efb2aab0e | 742 | delta = 16; |
mbed_official | 354:e67efb2aab0e | 743 | |
mbed_official | 354:e67efb2aab0e | 744 | while (delta != 0) |
mbed_official | 354:e67efb2aab0e | 745 | { |
mbed_official | 354:e67efb2aab0e | 746 | /* Set candidate trimming */ |
mbed_official | 354:e67efb2aab0e | 747 | MODIFY_REG(*tmp_opamp_reg_trimming, __OPAMP_OFFSET_TRIM_SET(hopamp, trimming_diff_pair, OPAMP_TRIM_VALUE_MASK) , |
mbed_official | 354:e67efb2aab0e | 748 | __OPAMP_OFFSET_TRIM_SET(hopamp, trimming_diff_pair, *opamp_trimmingvalue) | tmp_opamp_otr_otuser); |
mbed_official | 354:e67efb2aab0e | 749 | |
mbed_official | 354:e67efb2aab0e | 750 | /* Offset trimming time: during calibration, minimum time needed */ |
mbed_official | 354:e67efb2aab0e | 751 | /* between two steps to have 1 mV accuracy. */ |
mbed_official | 354:e67efb2aab0e | 752 | HAL_Delay(OPAMP_TRIMMING_DELAY); |
mbed_official | 354:e67efb2aab0e | 753 | |
mbed_official | 354:e67efb2aab0e | 754 | /* Divide range by 2 to continue dichotomy sweep */ |
mbed_official | 354:e67efb2aab0e | 755 | delta >>= 1; |
mbed_official | 354:e67efb2aab0e | 756 | |
mbed_official | 354:e67efb2aab0e | 757 | /* Set trimming values for next iteration in function of trimming */ |
mbed_official | 354:e67efb2aab0e | 758 | /* result toggle (versus initial state). */ |
mbed_official | 354:e67efb2aab0e | 759 | if (READ_BIT(OPAMP->CSR, __OPAMP_CSR_OPAXCALOUT(hopamp)) != tmp_Opaxcalout_DefaultSate) |
mbed_official | 354:e67efb2aab0e | 760 | { |
mbed_official | 354:e67efb2aab0e | 761 | /* If calibration output is has toggled, try lower trimming */ |
mbed_official | 354:e67efb2aab0e | 762 | *opamp_trimmingvalue -= delta; |
mbed_official | 354:e67efb2aab0e | 763 | } |
mbed_official | 354:e67efb2aab0e | 764 | else |
mbed_official | 354:e67efb2aab0e | 765 | { |
mbed_official | 354:e67efb2aab0e | 766 | /* If calibration output is has not toggled, try higher trimming */ |
mbed_official | 354:e67efb2aab0e | 767 | *opamp_trimmingvalue += delta; |
mbed_official | 354:e67efb2aab0e | 768 | } |
mbed_official | 354:e67efb2aab0e | 769 | } |
mbed_official | 354:e67efb2aab0e | 770 | |
mbed_official | 354:e67efb2aab0e | 771 | } |
mbed_official | 354:e67efb2aab0e | 772 | |
mbed_official | 354:e67efb2aab0e | 773 | /* Disable calibration for P and N differential pairs */ |
mbed_official | 354:e67efb2aab0e | 774 | /* Disable the selected opamp */ |
mbed_official | 354:e67efb2aab0e | 775 | CLEAR_BIT (OPAMP->CSR, (__OPAMP_CSR_OPAXCAL_H(hopamp) | |
mbed_official | 354:e67efb2aab0e | 776 | __OPAMP_CSR_OPAXCAL_L(hopamp) | |
mbed_official | 354:e67efb2aab0e | 777 | __OPAMP_CSR_OPAXPD(hopamp)) ); |
mbed_official | 354:e67efb2aab0e | 778 | |
mbed_official | 354:e67efb2aab0e | 779 | /* Backup of switches configuration to restore it at the end of the */ |
mbed_official | 354:e67efb2aab0e | 780 | /* calibration. */ |
mbed_official | 354:e67efb2aab0e | 781 | SET_BIT(OPAMP->CSR, tmp_OpaxSwitchesContextBackup); |
mbed_official | 354:e67efb2aab0e | 782 | |
mbed_official | 354:e67efb2aab0e | 783 | /* Self calibration is successful */ |
mbed_official | 354:e67efb2aab0e | 784 | /* Store calibration (user trimming) results in init structure. */ |
mbed_official | 354:e67efb2aab0e | 785 | |
mbed_official | 354:e67efb2aab0e | 786 | /* Set user trimming mode */ |
mbed_official | 354:e67efb2aab0e | 787 | hopamp->Init.UserTrimming = OPAMP_TRIMMING_USER; |
mbed_official | 354:e67efb2aab0e | 788 | |
mbed_official | 354:e67efb2aab0e | 789 | /* Affect calibration parameters depending on mode normal/low power */ |
mbed_official | 354:e67efb2aab0e | 790 | if (hopamp->Init.PowerMode != OPAMP_POWERMODE_LOWPOWER) |
mbed_official | 354:e67efb2aab0e | 791 | { |
mbed_official | 354:e67efb2aab0e | 792 | /* Write calibration result N */ |
mbed_official | 354:e67efb2aab0e | 793 | hopamp->Init.TrimmingValueN = opamp_trimmingvaluen; |
mbed_official | 354:e67efb2aab0e | 794 | /* Write calibration result P */ |
mbed_official | 354:e67efb2aab0e | 795 | hopamp->Init.TrimmingValueP = opamp_trimmingvaluep; |
mbed_official | 354:e67efb2aab0e | 796 | } |
mbed_official | 354:e67efb2aab0e | 797 | else |
mbed_official | 354:e67efb2aab0e | 798 | { |
mbed_official | 354:e67efb2aab0e | 799 | /* Write calibration result N */ |
mbed_official | 354:e67efb2aab0e | 800 | hopamp->Init.TrimmingValueNLowPower = opamp_trimmingvaluen; |
mbed_official | 354:e67efb2aab0e | 801 | /* Write calibration result P */ |
mbed_official | 354:e67efb2aab0e | 802 | hopamp->Init.TrimmingValuePLowPower = opamp_trimmingvaluep; |
mbed_official | 354:e67efb2aab0e | 803 | } |
mbed_official | 354:e67efb2aab0e | 804 | |
mbed_official | 354:e67efb2aab0e | 805 | /* Update OPAMP state */ |
mbed_official | 354:e67efb2aab0e | 806 | hopamp->State = HAL_OPAMP_STATE_READY; |
mbed_official | 354:e67efb2aab0e | 807 | |
mbed_official | 354:e67efb2aab0e | 808 | } |
mbed_official | 354:e67efb2aab0e | 809 | else |
mbed_official | 354:e67efb2aab0e | 810 | { |
mbed_official | 354:e67efb2aab0e | 811 | /* OPAMP can not be calibrated from this mode */ |
mbed_official | 354:e67efb2aab0e | 812 | status = HAL_ERROR; |
mbed_official | 354:e67efb2aab0e | 813 | } |
mbed_official | 354:e67efb2aab0e | 814 | } |
mbed_official | 354:e67efb2aab0e | 815 | |
mbed_official | 354:e67efb2aab0e | 816 | return status; |
mbed_official | 354:e67efb2aab0e | 817 | } |
mbed_official | 354:e67efb2aab0e | 818 | |
mbed_official | 354:e67efb2aab0e | 819 | /** |
mbed_official | 354:e67efb2aab0e | 820 | * @brief Return the OPAMP factory trimming value |
mbed_official | 354:e67efb2aab0e | 821 | * Caution: On STM32L1 OPAMP, user can retrieve factory trimming if |
mbed_official | 354:e67efb2aab0e | 822 | * OPAMP has never been set to user trimming before. |
mbed_official | 354:e67efb2aab0e | 823 | * Therefore, this fonction must be called when OPAMP init |
mbed_official | 354:e67efb2aab0e | 824 | * parameter "UserTrimming" is set to trimming factory, |
mbed_official | 354:e67efb2aab0e | 825 | * and before OPAMP calibration (function |
mbed_official | 354:e67efb2aab0e | 826 | * "HAL_OPAMP_SelfCalibrate()"). |
mbed_official | 354:e67efb2aab0e | 827 | * Otherwise, factory triming value cannot be retrieved and |
mbed_official | 354:e67efb2aab0e | 828 | * error status is returned. |
mbed_official | 354:e67efb2aab0e | 829 | * @param hopamp : OPAMP handle |
mbed_official | 354:e67efb2aab0e | 830 | * @param trimmingoffset : Trimming offset (P or N) |
mbed_official | 354:e67efb2aab0e | 831 | * This parameter must be a value of @ref OPAMP_FactoryTrimming |
mbed_official | 354:e67efb2aab0e | 832 | * @note Calibration parameter retrieved is corresponding to the mode |
mbed_official | 354:e67efb2aab0e | 833 | * specified in OPAMP init structure (mode normal or low-power). |
mbed_official | 354:e67efb2aab0e | 834 | * To retrieve calibration parameters for both modes, repeat this |
mbed_official | 354:e67efb2aab0e | 835 | * function after OPAMP init structure accordingly updated. |
mbed_official | 354:e67efb2aab0e | 836 | * @retval Trimming value (P or N): range: 0->31 |
mbed_official | 354:e67efb2aab0e | 837 | * or OPAMP_FACTORYTRIMMING_DUMMY if trimming value is not available |
mbed_official | 354:e67efb2aab0e | 838 | * @{ |
mbed_official | 354:e67efb2aab0e | 839 | */ |
mbed_official | 354:e67efb2aab0e | 840 | OPAMP_TrimmingValueTypeDef HAL_OPAMP_GetTrimOffset (OPAMP_HandleTypeDef *hopamp, uint32_t trimmingoffset) |
mbed_official | 354:e67efb2aab0e | 841 | { |
mbed_official | 354:e67efb2aab0e | 842 | OPAMP_TrimmingValueTypeDef trimmingvalue; |
mbed_official | 354:e67efb2aab0e | 843 | __IO uint32_t* tmp_opamp_reg_trimming; /* Selection of register of trimming depending on power mode: OTR or LPOTR */ |
mbed_official | 354:e67efb2aab0e | 844 | |
mbed_official | 354:e67efb2aab0e | 845 | /* Check the OPAMP handle allocation */ |
mbed_official | 354:e67efb2aab0e | 846 | /* Value can be retrieved in HAL_OPAMP_STATE_READY state */ |
mbed_official | 354:e67efb2aab0e | 847 | if((hopamp == HAL_NULL) || (hopamp->State == HAL_OPAMP_STATE_RESET) |
mbed_official | 354:e67efb2aab0e | 848 | || (hopamp->State == HAL_OPAMP_STATE_BUSY) |
mbed_official | 354:e67efb2aab0e | 849 | || (hopamp->State == HAL_OPAMP_STATE_CALIBBUSY) |
mbed_official | 354:e67efb2aab0e | 850 | || (hopamp->State == HAL_OPAMP_STATE_BUSYLOCKED)) |
mbed_official | 354:e67efb2aab0e | 851 | { |
mbed_official | 354:e67efb2aab0e | 852 | trimmingvalue = OPAMP_FACTORYTRIMMING_DUMMY; |
mbed_official | 354:e67efb2aab0e | 853 | } |
mbed_official | 354:e67efb2aab0e | 854 | else |
mbed_official | 354:e67efb2aab0e | 855 | { |
mbed_official | 354:e67efb2aab0e | 856 | /* Check the parameter */ |
mbed_official | 354:e67efb2aab0e | 857 | assert_param(IS_OPAMP_ALL_INSTANCE(hopamp->Instance)); |
mbed_official | 354:e67efb2aab0e | 858 | assert_param(IS_OPAMP_FACTORYTRIMMING(trimmingoffset)); |
mbed_official | 354:e67efb2aab0e | 859 | assert_param(IS_OPAMP_POWERMODE(hopamp->Init.PowerMode)); |
mbed_official | 354:e67efb2aab0e | 860 | |
mbed_official | 354:e67efb2aab0e | 861 | /* Check the trimming mode */ |
mbed_official | 354:e67efb2aab0e | 862 | if (hopamp->Init.UserTrimming == OPAMP_TRIMMING_USER) |
mbed_official | 354:e67efb2aab0e | 863 | { |
mbed_official | 354:e67efb2aab0e | 864 | /* This fonction must called when OPAMP init parameter "UserTrimming" */ |
mbed_official | 354:e67efb2aab0e | 865 | /* is set to trimming factory, and before OPAMP calibration (function */ |
mbed_official | 354:e67efb2aab0e | 866 | /* "HAL_OPAMP_SelfCalibrate()"). */ |
mbed_official | 354:e67efb2aab0e | 867 | /* Otherwise, factory triming value cannot be retrieved and error */ |
mbed_official | 354:e67efb2aab0e | 868 | /* status is returned. */ |
mbed_official | 354:e67efb2aab0e | 869 | trimmingvalue = OPAMP_FACTORYTRIMMING_DUMMY; |
mbed_official | 354:e67efb2aab0e | 870 | } |
mbed_official | 354:e67efb2aab0e | 871 | else |
mbed_official | 354:e67efb2aab0e | 872 | { |
mbed_official | 354:e67efb2aab0e | 873 | /* Select trimming settings depending on power mode */ |
mbed_official | 354:e67efb2aab0e | 874 | if (hopamp->Init.PowerMode == OPAMP_POWERMODE_NORMAL) |
mbed_official | 354:e67efb2aab0e | 875 | { |
mbed_official | 354:e67efb2aab0e | 876 | tmp_opamp_reg_trimming = &OPAMP->OTR; |
mbed_official | 354:e67efb2aab0e | 877 | } |
mbed_official | 354:e67efb2aab0e | 878 | else |
mbed_official | 354:e67efb2aab0e | 879 | { |
mbed_official | 354:e67efb2aab0e | 880 | tmp_opamp_reg_trimming = &OPAMP->LPOTR; |
mbed_official | 354:e67efb2aab0e | 881 | } |
mbed_official | 354:e67efb2aab0e | 882 | |
mbed_official | 354:e67efb2aab0e | 883 | /* Get factory trimming */ |
mbed_official | 354:e67efb2aab0e | 884 | trimmingvalue = ((*tmp_opamp_reg_trimming >> __OPAMP_OFFSET_TRIM_BITSPOSITION(hopamp, trimmingoffset)) & OPAMP_TRIM_VALUE_MASK); |
mbed_official | 354:e67efb2aab0e | 885 | } |
mbed_official | 354:e67efb2aab0e | 886 | } |
mbed_official | 354:e67efb2aab0e | 887 | |
mbed_official | 354:e67efb2aab0e | 888 | return trimmingvalue; |
mbed_official | 354:e67efb2aab0e | 889 | } |
mbed_official | 354:e67efb2aab0e | 890 | |
mbed_official | 354:e67efb2aab0e | 891 | /** |
mbed_official | 354:e67efb2aab0e | 892 | * @} |
mbed_official | 354:e67efb2aab0e | 893 | */ |
mbed_official | 354:e67efb2aab0e | 894 | |
mbed_official | 354:e67efb2aab0e | 895 | /** |
mbed_official | 354:e67efb2aab0e | 896 | * @} |
mbed_official | 354:e67efb2aab0e | 897 | */ |
mbed_official | 354:e67efb2aab0e | 898 | |
mbed_official | 354:e67efb2aab0e | 899 | /** @defgroup OPAMP_Exported_Functions_Group3 Peripheral Control functions |
mbed_official | 354:e67efb2aab0e | 900 | * @brief Peripheral Control functions |
mbed_official | 354:e67efb2aab0e | 901 | * |
mbed_official | 354:e67efb2aab0e | 902 | @verbatim |
mbed_official | 354:e67efb2aab0e | 903 | =============================================================================== |
mbed_official | 354:e67efb2aab0e | 904 | ##### Peripheral Control functions ##### |
mbed_official | 354:e67efb2aab0e | 905 | =============================================================================== |
mbed_official | 354:e67efb2aab0e | 906 | [..] |
mbed_official | 354:e67efb2aab0e | 907 | |
mbed_official | 354:e67efb2aab0e | 908 | @endverbatim |
mbed_official | 354:e67efb2aab0e | 909 | * @{ |
mbed_official | 354:e67efb2aab0e | 910 | */ |
mbed_official | 354:e67efb2aab0e | 911 | |
mbed_official | 354:e67efb2aab0e | 912 | /** |
mbed_official | 354:e67efb2aab0e | 913 | * @brief Lock the selected opamp configuration. |
mbed_official | 354:e67efb2aab0e | 914 | * Caution: On STM32L1, HAL OPAMP lock is software lock only (not |
mbed_official | 354:e67efb2aab0e | 915 | * hardware lock as on some other STM32 devices) |
mbed_official | 354:e67efb2aab0e | 916 | * @param hopamp: OPAMP handle |
mbed_official | 354:e67efb2aab0e | 917 | * @retval HAL status |
mbed_official | 354:e67efb2aab0e | 918 | */ |
mbed_official | 354:e67efb2aab0e | 919 | HAL_StatusTypeDef HAL_OPAMP_Lock(OPAMP_HandleTypeDef* hopamp) |
mbed_official | 354:e67efb2aab0e | 920 | { |
mbed_official | 354:e67efb2aab0e | 921 | HAL_StatusTypeDef status = HAL_OK; |
mbed_official | 354:e67efb2aab0e | 922 | |
mbed_official | 354:e67efb2aab0e | 923 | /* Check the OPAMP handle allocation */ |
mbed_official | 354:e67efb2aab0e | 924 | /* Check if OPAMP locked */ |
mbed_official | 354:e67efb2aab0e | 925 | /* OPAMP can be locked when enabled and running in normal mode */ |
mbed_official | 354:e67efb2aab0e | 926 | /* It is meaningless otherwise */ |
mbed_official | 354:e67efb2aab0e | 927 | if((hopamp == HAL_NULL) || (hopamp->State == HAL_OPAMP_STATE_RESET) \ |
mbed_official | 354:e67efb2aab0e | 928 | || (hopamp->State == HAL_OPAMP_STATE_READY) \ |
mbed_official | 354:e67efb2aab0e | 929 | || (hopamp->State == HAL_OPAMP_STATE_CALIBBUSY)\ |
mbed_official | 354:e67efb2aab0e | 930 | || (hopamp->State == HAL_OPAMP_STATE_BUSYLOCKED)) |
mbed_official | 354:e67efb2aab0e | 931 | |
mbed_official | 354:e67efb2aab0e | 932 | { |
mbed_official | 354:e67efb2aab0e | 933 | status = HAL_ERROR; |
mbed_official | 354:e67efb2aab0e | 934 | } |
mbed_official | 354:e67efb2aab0e | 935 | |
mbed_official | 354:e67efb2aab0e | 936 | else |
mbed_official | 354:e67efb2aab0e | 937 | { |
mbed_official | 354:e67efb2aab0e | 938 | /* Check the parameter */ |
mbed_official | 354:e67efb2aab0e | 939 | assert_param(IS_OPAMP_ALL_INSTANCE(hopamp->Instance)); |
mbed_official | 354:e67efb2aab0e | 940 | |
mbed_official | 354:e67efb2aab0e | 941 | /* OPAMP state changed to locked */ |
mbed_official | 354:e67efb2aab0e | 942 | hopamp->State = HAL_OPAMP_STATE_BUSYLOCKED; |
mbed_official | 354:e67efb2aab0e | 943 | } |
mbed_official | 354:e67efb2aab0e | 944 | return status; |
mbed_official | 354:e67efb2aab0e | 945 | } |
mbed_official | 354:e67efb2aab0e | 946 | |
mbed_official | 354:e67efb2aab0e | 947 | /** |
mbed_official | 354:e67efb2aab0e | 948 | * @} |
mbed_official | 354:e67efb2aab0e | 949 | */ |
mbed_official | 354:e67efb2aab0e | 950 | |
mbed_official | 354:e67efb2aab0e | 951 | |
mbed_official | 354:e67efb2aab0e | 952 | /** @defgroup OPAMP_Exported_Functions_Group4 Peripheral State functions |
mbed_official | 354:e67efb2aab0e | 953 | * @brief Peripheral State functions |
mbed_official | 354:e67efb2aab0e | 954 | * |
mbed_official | 354:e67efb2aab0e | 955 | @verbatim |
mbed_official | 354:e67efb2aab0e | 956 | =============================================================================== |
mbed_official | 354:e67efb2aab0e | 957 | ##### Peripheral State functions ##### |
mbed_official | 354:e67efb2aab0e | 958 | =============================================================================== |
mbed_official | 354:e67efb2aab0e | 959 | [..] |
mbed_official | 354:e67efb2aab0e | 960 | This subsection permit to get in run-time the status of the peripheral. |
mbed_official | 354:e67efb2aab0e | 961 | |
mbed_official | 354:e67efb2aab0e | 962 | @endverbatim |
mbed_official | 354:e67efb2aab0e | 963 | * @{ |
mbed_official | 354:e67efb2aab0e | 964 | */ |
mbed_official | 354:e67efb2aab0e | 965 | |
mbed_official | 354:e67efb2aab0e | 966 | /** |
mbed_official | 354:e67efb2aab0e | 967 | * @brief Return the OPAMP state |
mbed_official | 354:e67efb2aab0e | 968 | * @param hopamp : OPAMP handle |
mbed_official | 354:e67efb2aab0e | 969 | * @retval HAL state |
mbed_official | 354:e67efb2aab0e | 970 | */ |
mbed_official | 354:e67efb2aab0e | 971 | HAL_OPAMP_StateTypeDef HAL_OPAMP_GetState(OPAMP_HandleTypeDef* hopamp) |
mbed_official | 354:e67efb2aab0e | 972 | { |
mbed_official | 354:e67efb2aab0e | 973 | /* Check the OPAMP handle allocation */ |
mbed_official | 354:e67efb2aab0e | 974 | if(hopamp == HAL_NULL) |
mbed_official | 354:e67efb2aab0e | 975 | { |
mbed_official | 354:e67efb2aab0e | 976 | return HAL_OPAMP_STATE_RESET; |
mbed_official | 354:e67efb2aab0e | 977 | } |
mbed_official | 354:e67efb2aab0e | 978 | |
mbed_official | 354:e67efb2aab0e | 979 | /* Check the parameter */ |
mbed_official | 354:e67efb2aab0e | 980 | assert_param(IS_OPAMP_ALL_INSTANCE(hopamp->Instance)); |
mbed_official | 354:e67efb2aab0e | 981 | |
mbed_official | 354:e67efb2aab0e | 982 | return hopamp->State; |
mbed_official | 354:e67efb2aab0e | 983 | } |
mbed_official | 354:e67efb2aab0e | 984 | |
mbed_official | 354:e67efb2aab0e | 985 | /** |
mbed_official | 354:e67efb2aab0e | 986 | * @} |
mbed_official | 354:e67efb2aab0e | 987 | */ |
mbed_official | 354:e67efb2aab0e | 988 | |
mbed_official | 354:e67efb2aab0e | 989 | /** |
mbed_official | 354:e67efb2aab0e | 990 | * @} |
mbed_official | 354:e67efb2aab0e | 991 | */ |
mbed_official | 354:e67efb2aab0e | 992 | |
mbed_official | 354:e67efb2aab0e | 993 | #endif /* STM32L151xCA || STM32L151xD || STM32L152xCA || STM32L152xD || STM32L162xCA || STM32L162xD || STM32L151xE || STM32L152xE || STM32L162xE || STM32L162xC || STM32L152xC || STM32L151xC */ |
mbed_official | 354:e67efb2aab0e | 994 | |
mbed_official | 354:e67efb2aab0e | 995 | #endif /* HAL_OPAMP_MODULE_ENABLED */ |
mbed_official | 354:e67efb2aab0e | 996 | /** |
mbed_official | 354:e67efb2aab0e | 997 | * @} |
mbed_official | 354:e67efb2aab0e | 998 | */ |
mbed_official | 354:e67efb2aab0e | 999 | |
mbed_official | 354:e67efb2aab0e | 1000 | /** |
mbed_official | 354:e67efb2aab0e | 1001 | * @} |
mbed_official | 354:e67efb2aab0e | 1002 | */ |
mbed_official | 354:e67efb2aab0e | 1003 | |
mbed_official | 354:e67efb2aab0e | 1004 | /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/ |