mbed library sources. Supersedes mbed-src.
Dependents: Nucleo_Hello_Encoder BLE_iBeaconScan AM1805_DEMO DISCO-F429ZI_ExportTemplate1 ... more
targets/cmsis/TARGET_STM/TARGET_STM32L4/stm32l4xx_hal_opamp_ex.c@144:ef7eb2e8f9f7, 2016-09-02 (annotated)
- Committer:
- <>
- Date:
- Fri Sep 02 15:07:44 2016 +0100
- Revision:
- 144:ef7eb2e8f9f7
- Parent:
- 0:9b334a45a8ff
This updates the lib to the mbed lib v125
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
<> | 144:ef7eb2e8f9f7 | 1 | /** |
<> | 144:ef7eb2e8f9f7 | 2 | ****************************************************************************** |
<> | 144:ef7eb2e8f9f7 | 3 | * @file stm32l4xx_hal_opamp_ex.c |
<> | 144:ef7eb2e8f9f7 | 4 | * @author MCD Application Team |
<> | 144:ef7eb2e8f9f7 | 5 | * @version V1.5.1 |
<> | 144:ef7eb2e8f9f7 | 6 | * @date 31-May-2016 |
<> | 144:ef7eb2e8f9f7 | 7 | * @brief Extended OPAMP HAL module driver. |
<> | 144:ef7eb2e8f9f7 | 8 | * This file provides firmware functions to manage the following |
<> | 144:ef7eb2e8f9f7 | 9 | * functionalities of the operational amplifier(s)(OPAMP1, OPAMP2 etc) |
<> | 144:ef7eb2e8f9f7 | 10 | * peripheral: |
<> | 144:ef7eb2e8f9f7 | 11 | * + Extended Initialization and de-initialization functions |
<> | 144:ef7eb2e8f9f7 | 12 | * + Extended Peripheral Control functions |
<> | 144:ef7eb2e8f9f7 | 13 | * |
<> | 144:ef7eb2e8f9f7 | 14 | @verbatim |
<> | 144:ef7eb2e8f9f7 | 15 | ****************************************************************************** |
<> | 144:ef7eb2e8f9f7 | 16 | * @attention |
<> | 144:ef7eb2e8f9f7 | 17 | * |
<> | 144:ef7eb2e8f9f7 | 18 | * <h2><center>© COPYRIGHT(c) 2016 STMicroelectronics</center></h2> |
<> | 144:ef7eb2e8f9f7 | 19 | * |
<> | 144:ef7eb2e8f9f7 | 20 | * Redistribution and use in source and binary forms, with or without modification, |
<> | 144:ef7eb2e8f9f7 | 21 | * are permitted provided that the following conditions are met: |
<> | 144:ef7eb2e8f9f7 | 22 | * 1. Redistributions of source code must retain the above copyright notice, |
<> | 144:ef7eb2e8f9f7 | 23 | * this list of conditions and the following disclaimer. |
<> | 144:ef7eb2e8f9f7 | 24 | * 2. Redistributions in binary form must reproduce the above copyright notice, |
<> | 144:ef7eb2e8f9f7 | 25 | * this list of conditions and the following disclaimer in the documentation |
<> | 144:ef7eb2e8f9f7 | 26 | * and/or other materials provided with the distribution. |
<> | 144:ef7eb2e8f9f7 | 27 | * 3. Neither the name of STMicroelectronics nor the names of its contributors |
<> | 144:ef7eb2e8f9f7 | 28 | * may be used to endorse or promote products derived from this software |
<> | 144:ef7eb2e8f9f7 | 29 | * without specific prior written permission. |
<> | 144:ef7eb2e8f9f7 | 30 | * |
<> | 144:ef7eb2e8f9f7 | 31 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" |
<> | 144:ef7eb2e8f9f7 | 32 | * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
<> | 144:ef7eb2e8f9f7 | 33 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
<> | 144:ef7eb2e8f9f7 | 34 | * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE |
<> | 144:ef7eb2e8f9f7 | 35 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
<> | 144:ef7eb2e8f9f7 | 36 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR |
<> | 144:ef7eb2e8f9f7 | 37 | * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER |
<> | 144:ef7eb2e8f9f7 | 38 | * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, |
<> | 144:ef7eb2e8f9f7 | 39 | * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
<> | 144:ef7eb2e8f9f7 | 40 | * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
<> | 144:ef7eb2e8f9f7 | 41 | * |
<> | 144:ef7eb2e8f9f7 | 42 | ****************************************************************************** |
<> | 144:ef7eb2e8f9f7 | 43 | */ |
<> | 144:ef7eb2e8f9f7 | 44 | |
<> | 144:ef7eb2e8f9f7 | 45 | /* Includes ------------------------------------------------------------------*/ |
<> | 144:ef7eb2e8f9f7 | 46 | #include "stm32l4xx_hal.h" |
<> | 144:ef7eb2e8f9f7 | 47 | |
<> | 144:ef7eb2e8f9f7 | 48 | /** @addtogroup STM32L4xx_HAL_Driver |
<> | 144:ef7eb2e8f9f7 | 49 | * @{ |
<> | 144:ef7eb2e8f9f7 | 50 | */ |
<> | 144:ef7eb2e8f9f7 | 51 | |
<> | 144:ef7eb2e8f9f7 | 52 | /** @defgroup OPAMPEx OPAMPEx |
<> | 144:ef7eb2e8f9f7 | 53 | * @brief OPAMP Extended HAL module driver |
<> | 144:ef7eb2e8f9f7 | 54 | * @{ |
<> | 144:ef7eb2e8f9f7 | 55 | */ |
<> | 144:ef7eb2e8f9f7 | 56 | |
<> | 144:ef7eb2e8f9f7 | 57 | #ifdef HAL_OPAMP_MODULE_ENABLED |
<> | 144:ef7eb2e8f9f7 | 58 | |
<> | 144:ef7eb2e8f9f7 | 59 | /* Private typedef -----------------------------------------------------------*/ |
<> | 144:ef7eb2e8f9f7 | 60 | /* Private define ------------------------------------------------------------*/ |
<> | 144:ef7eb2e8f9f7 | 61 | /* Private macro -------------------------------------------------------------*/ |
<> | 144:ef7eb2e8f9f7 | 62 | /* Private variables ---------------------------------------------------------*/ |
<> | 144:ef7eb2e8f9f7 | 63 | /* Private function prototypes -----------------------------------------------*/ |
<> | 144:ef7eb2e8f9f7 | 64 | /* Exported functions --------------------------------------------------------*/ |
<> | 144:ef7eb2e8f9f7 | 65 | |
<> | 144:ef7eb2e8f9f7 | 66 | /** @defgroup OPAMP_Exported_Functions OPAMP Exported Functions |
<> | 144:ef7eb2e8f9f7 | 67 | * @{ |
<> | 144:ef7eb2e8f9f7 | 68 | */ |
<> | 144:ef7eb2e8f9f7 | 69 | |
<> | 144:ef7eb2e8f9f7 | 70 | #if defined (STM32L471xx) || defined (STM32L475xx) || defined (STM32L476xx) || defined (STM32L485xx) || defined (STM32L486xx) |
<> | 144:ef7eb2e8f9f7 | 71 | |
<> | 144:ef7eb2e8f9f7 | 72 | /** @addtogroup OPAMPEx_Exported_Functions_Group1 |
<> | 144:ef7eb2e8f9f7 | 73 | * @brief Extended operation functions |
<> | 144:ef7eb2e8f9f7 | 74 | * |
<> | 144:ef7eb2e8f9f7 | 75 | @verbatim |
<> | 144:ef7eb2e8f9f7 | 76 | =============================================================================== |
<> | 144:ef7eb2e8f9f7 | 77 | ##### Extended IO operation functions ##### |
<> | 144:ef7eb2e8f9f7 | 78 | =============================================================================== |
<> | 144:ef7eb2e8f9f7 | 79 | [..] |
<> | 144:ef7eb2e8f9f7 | 80 | (+) OPAMP Self calibration. |
<> | 144:ef7eb2e8f9f7 | 81 | |
<> | 144:ef7eb2e8f9f7 | 82 | @endverbatim |
<> | 144:ef7eb2e8f9f7 | 83 | * @{ |
<> | 144:ef7eb2e8f9f7 | 84 | */ |
<> | 144:ef7eb2e8f9f7 | 85 | |
<> | 144:ef7eb2e8f9f7 | 86 | /* 2 OPAMPS available */ |
<> | 144:ef7eb2e8f9f7 | 87 | /* 2 OPAMPS can be calibrated in parallel */ |
<> | 144:ef7eb2e8f9f7 | 88 | /* Not available on STM32L43x/STM32L44x where only one OPAMP available */ |
<> | 144:ef7eb2e8f9f7 | 89 | |
<> | 144:ef7eb2e8f9f7 | 90 | /** |
<> | 144:ef7eb2e8f9f7 | 91 | * @brief Run the self calibration of the 2 OPAMPs in parallel. |
<> | 144:ef7eb2e8f9f7 | 92 | * @note Trimming values (PMOS & NMOS) are updated and user trimming is |
<> | 144:ef7eb2e8f9f7 | 93 | * enabled is calibration is successful. |
<> | 144:ef7eb2e8f9f7 | 94 | * @note Calibration is performed in the mode specified in OPAMP init |
<> | 144:ef7eb2e8f9f7 | 95 | * structure (mode normal or low-power). To perform calibration for |
<> | 144:ef7eb2e8f9f7 | 96 | * both modes, repeat this function twice after OPAMP init structure |
<> | 144:ef7eb2e8f9f7 | 97 | * accordingly updated. |
<> | 144:ef7eb2e8f9f7 | 98 | * @note Calibration runs about 10 ms (5 dichotomy steps, repeated for P |
<> | 144:ef7eb2e8f9f7 | 99 | * and N transistors: 10 steps with 1 ms for each step). |
<> | 144:ef7eb2e8f9f7 | 100 | * @param hopamp1 handle |
<> | 144:ef7eb2e8f9f7 | 101 | * @param hopamp2 handle |
<> | 144:ef7eb2e8f9f7 | 102 | * @retval HAL status |
<> | 144:ef7eb2e8f9f7 | 103 | */ |
<> | 144:ef7eb2e8f9f7 | 104 | |
<> | 144:ef7eb2e8f9f7 | 105 | HAL_StatusTypeDef HAL_OPAMPEx_SelfCalibrateAll(OPAMP_HandleTypeDef *hopamp1, OPAMP_HandleTypeDef *hopamp2) |
<> | 144:ef7eb2e8f9f7 | 106 | { |
<> | 144:ef7eb2e8f9f7 | 107 | HAL_StatusTypeDef status = HAL_OK; |
<> | 144:ef7eb2e8f9f7 | 108 | |
<> | 144:ef7eb2e8f9f7 | 109 | uint32_t trimmingvaluen1 = 0; |
<> | 144:ef7eb2e8f9f7 | 110 | uint32_t trimmingvaluep1 = 0; |
<> | 144:ef7eb2e8f9f7 | 111 | uint32_t trimmingvaluen2 = 0; |
<> | 144:ef7eb2e8f9f7 | 112 | uint32_t trimmingvaluep2 = 0; |
<> | 144:ef7eb2e8f9f7 | 113 | |
<> | 144:ef7eb2e8f9f7 | 114 | /* Selection of register of trimming depending on power mode: OTR or LPOTR */ |
<> | 144:ef7eb2e8f9f7 | 115 | __IO uint32_t* tmp_opamp1_reg_trimming; |
<> | 144:ef7eb2e8f9f7 | 116 | __IO uint32_t* tmp_opamp2_reg_trimming; |
<> | 144:ef7eb2e8f9f7 | 117 | |
<> | 144:ef7eb2e8f9f7 | 118 | uint32_t delta; |
<> | 144:ef7eb2e8f9f7 | 119 | uint32_t opampmode1; |
<> | 144:ef7eb2e8f9f7 | 120 | uint32_t opampmode2; |
<> | 144:ef7eb2e8f9f7 | 121 | |
<> | 144:ef7eb2e8f9f7 | 122 | if((hopamp1 == NULL) || (hopamp1->State == HAL_OPAMP_STATE_BUSYLOCKED) || \ |
<> | 144:ef7eb2e8f9f7 | 123 | (hopamp2 == NULL) || (hopamp2->State == HAL_OPAMP_STATE_BUSYLOCKED)) |
<> | 144:ef7eb2e8f9f7 | 124 | { |
<> | 144:ef7eb2e8f9f7 | 125 | status = HAL_ERROR; |
<> | 144:ef7eb2e8f9f7 | 126 | } |
<> | 144:ef7eb2e8f9f7 | 127 | else |
<> | 144:ef7eb2e8f9f7 | 128 | { |
<> | 144:ef7eb2e8f9f7 | 129 | /* Check if OPAMP in calibration mode and calibration not yet enable */ |
<> | 144:ef7eb2e8f9f7 | 130 | if((hopamp1->State == HAL_OPAMP_STATE_READY) && (hopamp2->State == HAL_OPAMP_STATE_READY)) |
<> | 144:ef7eb2e8f9f7 | 131 | { |
<> | 144:ef7eb2e8f9f7 | 132 | /* Check the parameter */ |
<> | 144:ef7eb2e8f9f7 | 133 | assert_param(IS_OPAMP_ALL_INSTANCE(hopamp1->Instance)); |
<> | 144:ef7eb2e8f9f7 | 134 | assert_param(IS_OPAMP_ALL_INSTANCE(hopamp2->Instance)); |
<> | 144:ef7eb2e8f9f7 | 135 | |
<> | 144:ef7eb2e8f9f7 | 136 | assert_param(IS_OPAMP_POWERMODE(hopamp1->Init.PowerMode)); |
<> | 144:ef7eb2e8f9f7 | 137 | assert_param(IS_OPAMP_POWERMODE(hopamp2->Init.PowerMode)); |
<> | 144:ef7eb2e8f9f7 | 138 | |
<> | 144:ef7eb2e8f9f7 | 139 | /* Save OPAMP mode as in */ |
<> | 144:ef7eb2e8f9f7 | 140 | /* STM32L471xx STM32L475xx STM32L476xx STM32L485xx STM32L486xx */ |
<> | 144:ef7eb2e8f9f7 | 141 | /* the calibration is not working in PGA mode */ |
<> | 144:ef7eb2e8f9f7 | 142 | opampmode1 = READ_BIT(hopamp1->Instance->CSR,OPAMP_CSR_OPAMODE); |
<> | 144:ef7eb2e8f9f7 | 143 | opampmode2 = READ_BIT(hopamp2->Instance->CSR,OPAMP_CSR_OPAMODE); |
<> | 144:ef7eb2e8f9f7 | 144 | |
<> | 144:ef7eb2e8f9f7 | 145 | /* Use of standalone mode */ |
<> | 144:ef7eb2e8f9f7 | 146 | MODIFY_REG(hopamp1->Instance->CSR, OPAMP_CSR_OPAMODE, OPAMP_STANDALONE_MODE); |
<> | 144:ef7eb2e8f9f7 | 147 | MODIFY_REG(hopamp2->Instance->CSR, OPAMP_CSR_OPAMODE, OPAMP_STANDALONE_MODE); |
<> | 144:ef7eb2e8f9f7 | 148 | |
<> | 144:ef7eb2e8f9f7 | 149 | /* user trimming values are used for offset calibration */ |
<> | 144:ef7eb2e8f9f7 | 150 | SET_BIT(hopamp1->Instance->CSR, OPAMP_CSR_USERTRIM); |
<> | 144:ef7eb2e8f9f7 | 151 | SET_BIT(hopamp2->Instance->CSR, OPAMP_CSR_USERTRIM); |
<> | 144:ef7eb2e8f9f7 | 152 | |
<> | 144:ef7eb2e8f9f7 | 153 | /* Select trimming settings depending on power mode */ |
<> | 144:ef7eb2e8f9f7 | 154 | if (hopamp1->Init.PowerMode == OPAMP_POWERMODE_NORMAL) |
<> | 144:ef7eb2e8f9f7 | 155 | { |
<> | 144:ef7eb2e8f9f7 | 156 | tmp_opamp1_reg_trimming = &OPAMP1->OTR; |
<> | 144:ef7eb2e8f9f7 | 157 | } |
<> | 144:ef7eb2e8f9f7 | 158 | else |
<> | 144:ef7eb2e8f9f7 | 159 | { |
<> | 144:ef7eb2e8f9f7 | 160 | tmp_opamp1_reg_trimming = &OPAMP1->LPOTR; |
<> | 144:ef7eb2e8f9f7 | 161 | } |
<> | 144:ef7eb2e8f9f7 | 162 | |
<> | 144:ef7eb2e8f9f7 | 163 | if (hopamp2->Init.PowerMode == OPAMP_POWERMODE_NORMAL) |
<> | 144:ef7eb2e8f9f7 | 164 | { |
<> | 144:ef7eb2e8f9f7 | 165 | tmp_opamp2_reg_trimming = &OPAMP2->OTR; |
<> | 144:ef7eb2e8f9f7 | 166 | } |
<> | 144:ef7eb2e8f9f7 | 167 | else |
<> | 144:ef7eb2e8f9f7 | 168 | { |
<> | 144:ef7eb2e8f9f7 | 169 | tmp_opamp2_reg_trimming = &OPAMP2->LPOTR; |
<> | 144:ef7eb2e8f9f7 | 170 | } |
<> | 144:ef7eb2e8f9f7 | 171 | |
<> | 144:ef7eb2e8f9f7 | 172 | /* Enable calibration */ |
<> | 144:ef7eb2e8f9f7 | 173 | SET_BIT (hopamp1->Instance->CSR, OPAMP_CSR_CALON); |
<> | 144:ef7eb2e8f9f7 | 174 | SET_BIT (hopamp2->Instance->CSR, OPAMP_CSR_CALON); |
<> | 144:ef7eb2e8f9f7 | 175 | |
<> | 144:ef7eb2e8f9f7 | 176 | /* 1st calibration - N */ |
<> | 144:ef7eb2e8f9f7 | 177 | CLEAR_BIT (hopamp1->Instance->CSR, OPAMP_CSR_CALSEL); |
<> | 144:ef7eb2e8f9f7 | 178 | CLEAR_BIT (hopamp2->Instance->CSR, OPAMP_CSR_CALSEL); |
<> | 144:ef7eb2e8f9f7 | 179 | |
<> | 144:ef7eb2e8f9f7 | 180 | /* Enable the selected opamp */ |
<> | 144:ef7eb2e8f9f7 | 181 | SET_BIT (hopamp1->Instance->CSR, OPAMP_CSR_OPAMPxEN); |
<> | 144:ef7eb2e8f9f7 | 182 | SET_BIT (hopamp2->Instance->CSR, OPAMP_CSR_OPAMPxEN); |
<> | 144:ef7eb2e8f9f7 | 183 | |
<> | 144:ef7eb2e8f9f7 | 184 | /* Init trimming counter */ |
<> | 144:ef7eb2e8f9f7 | 185 | /* Medium value */ |
<> | 144:ef7eb2e8f9f7 | 186 | trimmingvaluen1 = 16; |
<> | 144:ef7eb2e8f9f7 | 187 | trimmingvaluen2 = 16; |
<> | 144:ef7eb2e8f9f7 | 188 | delta = 8; |
<> | 144:ef7eb2e8f9f7 | 189 | |
<> | 144:ef7eb2e8f9f7 | 190 | while (delta != 0) |
<> | 144:ef7eb2e8f9f7 | 191 | { |
<> | 144:ef7eb2e8f9f7 | 192 | /* Set candidate trimming */ |
<> | 144:ef7eb2e8f9f7 | 193 | /* OPAMP_POWERMODE_NORMAL */ |
<> | 144:ef7eb2e8f9f7 | 194 | MODIFY_REG(*tmp_opamp1_reg_trimming, OPAMP_OTR_TRIMOFFSETN, trimmingvaluen1); |
<> | 144:ef7eb2e8f9f7 | 195 | MODIFY_REG(*tmp_opamp2_reg_trimming, OPAMP_OTR_TRIMOFFSETN, trimmingvaluen2); |
<> | 144:ef7eb2e8f9f7 | 196 | |
<> | 144:ef7eb2e8f9f7 | 197 | /* OFFTRIMmax delay 1 ms as per datasheet (electrical characteristics */ |
<> | 144:ef7eb2e8f9f7 | 198 | /* Offset trim time: during calibration, minimum time needed between */ |
<> | 144:ef7eb2e8f9f7 | 199 | /* two steps to have 1 mV accuracy */ |
<> | 144:ef7eb2e8f9f7 | 200 | HAL_Delay(OPAMP_TRIMMING_DELAY); |
<> | 144:ef7eb2e8f9f7 | 201 | |
<> | 144:ef7eb2e8f9f7 | 202 | if (READ_BIT(hopamp1->Instance->CSR, OPAMP_CSR_CALOUT) != RESET) |
<> | 144:ef7eb2e8f9f7 | 203 | { |
<> | 144:ef7eb2e8f9f7 | 204 | /* OPAMP_CSR_CALOUT is HIGH try lower trimming */ |
<> | 144:ef7eb2e8f9f7 | 205 | trimmingvaluen1 -= delta; |
<> | 144:ef7eb2e8f9f7 | 206 | } |
<> | 144:ef7eb2e8f9f7 | 207 | else |
<> | 144:ef7eb2e8f9f7 | 208 | { |
<> | 144:ef7eb2e8f9f7 | 209 | /* OPAMP_CSR_CALOUT is LOW try higher trimming */ |
<> | 144:ef7eb2e8f9f7 | 210 | trimmingvaluen1 += delta; |
<> | 144:ef7eb2e8f9f7 | 211 | } |
<> | 144:ef7eb2e8f9f7 | 212 | |
<> | 144:ef7eb2e8f9f7 | 213 | if (READ_BIT(hopamp2->Instance->CSR, OPAMP_CSR_CALOUT) != RESET) |
<> | 144:ef7eb2e8f9f7 | 214 | { |
<> | 144:ef7eb2e8f9f7 | 215 | /* OPAMP_CSR_CALOUT is HIGH try lower trimming */ |
<> | 144:ef7eb2e8f9f7 | 216 | trimmingvaluen2 -= delta; |
<> | 144:ef7eb2e8f9f7 | 217 | } |
<> | 144:ef7eb2e8f9f7 | 218 | else |
<> | 144:ef7eb2e8f9f7 | 219 | { |
<> | 144:ef7eb2e8f9f7 | 220 | /* OPAMP_CSR_CALOUT is LOW try higher trimming */ |
<> | 144:ef7eb2e8f9f7 | 221 | trimmingvaluen2 += delta; |
<> | 144:ef7eb2e8f9f7 | 222 | } |
<> | 144:ef7eb2e8f9f7 | 223 | /* Divide range by 2 to continue dichotomy sweep */ |
<> | 144:ef7eb2e8f9f7 | 224 | delta >>= 1; |
<> | 144:ef7eb2e8f9f7 | 225 | } |
<> | 144:ef7eb2e8f9f7 | 226 | |
<> | 144:ef7eb2e8f9f7 | 227 | /* Still need to check if right calibration is current value or one step below */ |
<> | 144:ef7eb2e8f9f7 | 228 | /* Indeed the first value that causes the OUTCAL bit to change from 0 to 1 */ |
<> | 144:ef7eb2e8f9f7 | 229 | /* Set candidate trimming */ |
<> | 144:ef7eb2e8f9f7 | 230 | MODIFY_REG(*tmp_opamp1_reg_trimming, OPAMP_OTR_TRIMOFFSETN, trimmingvaluen1); |
<> | 144:ef7eb2e8f9f7 | 231 | MODIFY_REG(*tmp_opamp2_reg_trimming, OPAMP_OTR_TRIMOFFSETN, trimmingvaluen2); |
<> | 144:ef7eb2e8f9f7 | 232 | |
<> | 144:ef7eb2e8f9f7 | 233 | /* OFFTRIMmax delay 1 ms as per datasheet (electrical characteristics */ |
<> | 144:ef7eb2e8f9f7 | 234 | /* Offset trim time: during calibration, minimum time needed between */ |
<> | 144:ef7eb2e8f9f7 | 235 | /* two steps to have 1 mV accuracy */ |
<> | 144:ef7eb2e8f9f7 | 236 | HAL_Delay(OPAMP_TRIMMING_DELAY); |
<> | 144:ef7eb2e8f9f7 | 237 | |
<> | 144:ef7eb2e8f9f7 | 238 | if ((READ_BIT(hopamp1->Instance->CSR, OPAMP_CSR_CALOUT)) == 0) |
<> | 144:ef7eb2e8f9f7 | 239 | { |
<> | 144:ef7eb2e8f9f7 | 240 | /* Trimming value is actually one value more */ |
<> | 144:ef7eb2e8f9f7 | 241 | trimmingvaluen1++; |
<> | 144:ef7eb2e8f9f7 | 242 | MODIFY_REG(*tmp_opamp1_reg_trimming, OPAMP_OTR_TRIMOFFSETN, trimmingvaluen1); |
<> | 144:ef7eb2e8f9f7 | 243 | } |
<> | 144:ef7eb2e8f9f7 | 244 | |
<> | 144:ef7eb2e8f9f7 | 245 | if ((READ_BIT(hopamp2->Instance->CSR, OPAMP_CSR_CALOUT)) == 0) |
<> | 144:ef7eb2e8f9f7 | 246 | { |
<> | 144:ef7eb2e8f9f7 | 247 | /* Trimming value is actually one value more */ |
<> | 144:ef7eb2e8f9f7 | 248 | trimmingvaluen2++; |
<> | 144:ef7eb2e8f9f7 | 249 | MODIFY_REG(*tmp_opamp2_reg_trimming, OPAMP_OTR_TRIMOFFSETN, trimmingvaluen2); |
<> | 144:ef7eb2e8f9f7 | 250 | } |
<> | 144:ef7eb2e8f9f7 | 251 | |
<> | 144:ef7eb2e8f9f7 | 252 | /* 2nd calibration - P */ |
<> | 144:ef7eb2e8f9f7 | 253 | SET_BIT (hopamp1->Instance->CSR, OPAMP_CSR_CALSEL); |
<> | 144:ef7eb2e8f9f7 | 254 | SET_BIT (hopamp2->Instance->CSR, OPAMP_CSR_CALSEL); |
<> | 144:ef7eb2e8f9f7 | 255 | |
<> | 144:ef7eb2e8f9f7 | 256 | /* Init trimming counter */ |
<> | 144:ef7eb2e8f9f7 | 257 | /* Medium value */ |
<> | 144:ef7eb2e8f9f7 | 258 | trimmingvaluep1 = 16; |
<> | 144:ef7eb2e8f9f7 | 259 | trimmingvaluep2 = 16; |
<> | 144:ef7eb2e8f9f7 | 260 | delta = 8; |
<> | 144:ef7eb2e8f9f7 | 261 | |
<> | 144:ef7eb2e8f9f7 | 262 | while (delta != 0) |
<> | 144:ef7eb2e8f9f7 | 263 | { |
<> | 144:ef7eb2e8f9f7 | 264 | /* Set candidate trimming */ |
<> | 144:ef7eb2e8f9f7 | 265 | /* OPAMP_POWERMODE_NORMAL */ |
<> | 144:ef7eb2e8f9f7 | 266 | MODIFY_REG(*tmp_opamp1_reg_trimming, OPAMP_OTR_TRIMOFFSETP, (trimmingvaluep1<<OPAMP_INPUT_NONINVERTING)); |
<> | 144:ef7eb2e8f9f7 | 267 | MODIFY_REG(*tmp_opamp2_reg_trimming, OPAMP_OTR_TRIMOFFSETP, (trimmingvaluep2<<OPAMP_INPUT_NONINVERTING)); |
<> | 144:ef7eb2e8f9f7 | 268 | |
<> | 144:ef7eb2e8f9f7 | 269 | /* OFFTRIMmax delay 1 ms as per datasheet (electrical characteristics */ |
<> | 144:ef7eb2e8f9f7 | 270 | /* Offset trim time: during calibration, minimum time needed between */ |
<> | 144:ef7eb2e8f9f7 | 271 | /* two steps to have 1 mV accuracy */ |
<> | 144:ef7eb2e8f9f7 | 272 | HAL_Delay(OPAMP_TRIMMING_DELAY); |
<> | 144:ef7eb2e8f9f7 | 273 | |
<> | 144:ef7eb2e8f9f7 | 274 | if (READ_BIT(hopamp1->Instance->CSR, OPAMP_CSR_CALOUT) != RESET) |
<> | 144:ef7eb2e8f9f7 | 275 | { |
<> | 144:ef7eb2e8f9f7 | 276 | /* OPAMP_CSR_CALOUT is HIGH try higher trimming */ |
<> | 144:ef7eb2e8f9f7 | 277 | trimmingvaluep1 += delta; |
<> | 144:ef7eb2e8f9f7 | 278 | } |
<> | 144:ef7eb2e8f9f7 | 279 | else |
<> | 144:ef7eb2e8f9f7 | 280 | { |
<> | 144:ef7eb2e8f9f7 | 281 | /* OPAMP_CSR_CALOUT is HIGH try lower trimming */ |
<> | 144:ef7eb2e8f9f7 | 282 | trimmingvaluep1 -= delta; |
<> | 144:ef7eb2e8f9f7 | 283 | } |
<> | 144:ef7eb2e8f9f7 | 284 | |
<> | 144:ef7eb2e8f9f7 | 285 | if (READ_BIT(hopamp2->Instance->CSR, OPAMP_CSR_CALOUT) != RESET) |
<> | 144:ef7eb2e8f9f7 | 286 | { |
<> | 144:ef7eb2e8f9f7 | 287 | /* OPAMP_CSR_CALOUT is HIGH try higher trimming */ |
<> | 144:ef7eb2e8f9f7 | 288 | trimmingvaluep2 += delta; |
<> | 144:ef7eb2e8f9f7 | 289 | } |
<> | 144:ef7eb2e8f9f7 | 290 | else |
<> | 144:ef7eb2e8f9f7 | 291 | { |
<> | 144:ef7eb2e8f9f7 | 292 | /* OPAMP_CSR_CALOUT is LOW try lower trimming */ |
<> | 144:ef7eb2e8f9f7 | 293 | trimmingvaluep2 -= delta; |
<> | 144:ef7eb2e8f9f7 | 294 | } |
<> | 144:ef7eb2e8f9f7 | 295 | /* Divide range by 2 to continue dichotomy sweep */ |
<> | 144:ef7eb2e8f9f7 | 296 | delta >>= 1; |
<> | 144:ef7eb2e8f9f7 | 297 | } |
<> | 144:ef7eb2e8f9f7 | 298 | |
<> | 144:ef7eb2e8f9f7 | 299 | /* Still need to check if right calibration is current value or one step below */ |
<> | 144:ef7eb2e8f9f7 | 300 | /* Indeed the first value that causes the OUTCAL bit to change from 1 to 0 */ |
<> | 144:ef7eb2e8f9f7 | 301 | /* Set candidate trimming */ |
<> | 144:ef7eb2e8f9f7 | 302 | MODIFY_REG(*tmp_opamp1_reg_trimming, OPAMP_OTR_TRIMOFFSETP, (trimmingvaluep1<<OPAMP_INPUT_NONINVERTING)); |
<> | 144:ef7eb2e8f9f7 | 303 | MODIFY_REG(*tmp_opamp2_reg_trimming, OPAMP_OTR_TRIMOFFSETP, (trimmingvaluep2<<OPAMP_INPUT_NONINVERTING)); |
<> | 144:ef7eb2e8f9f7 | 304 | |
<> | 144:ef7eb2e8f9f7 | 305 | /* OFFTRIMmax delay 1 ms as per datasheet (electrical characteristics */ |
<> | 144:ef7eb2e8f9f7 | 306 | /* Offset trim time: during calibration, minimum time needed between */ |
<> | 144:ef7eb2e8f9f7 | 307 | /* two steps to have 1 mV accuracy */ |
<> | 144:ef7eb2e8f9f7 | 308 | HAL_Delay(OPAMP_TRIMMING_DELAY); |
<> | 144:ef7eb2e8f9f7 | 309 | |
<> | 144:ef7eb2e8f9f7 | 310 | if (READ_BIT(hopamp1->Instance->CSR, OPAMP_CSR_CALOUT) != RESET) |
<> | 144:ef7eb2e8f9f7 | 311 | { |
<> | 144:ef7eb2e8f9f7 | 312 | /* Trimming value is actually one value more */ |
<> | 144:ef7eb2e8f9f7 | 313 | trimmingvaluep1++; |
<> | 144:ef7eb2e8f9f7 | 314 | MODIFY_REG(*tmp_opamp1_reg_trimming, OPAMP_OTR_TRIMOFFSETP, (trimmingvaluep1<<OPAMP_INPUT_NONINVERTING)); |
<> | 144:ef7eb2e8f9f7 | 315 | } |
<> | 144:ef7eb2e8f9f7 | 316 | |
<> | 144:ef7eb2e8f9f7 | 317 | if (READ_BIT(hopamp2->Instance->CSR, OPAMP_CSR_CALOUT) != RESET) |
<> | 144:ef7eb2e8f9f7 | 318 | { |
<> | 144:ef7eb2e8f9f7 | 319 | /* Trimming value is actually one value more */ |
<> | 144:ef7eb2e8f9f7 | 320 | trimmingvaluep2++; |
<> | 144:ef7eb2e8f9f7 | 321 | MODIFY_REG(*tmp_opamp2_reg_trimming, OPAMP_OTR_TRIMOFFSETP, (trimmingvaluep2<<OPAMP_INPUT_NONINVERTING)); |
<> | 144:ef7eb2e8f9f7 | 322 | } |
<> | 144:ef7eb2e8f9f7 | 323 | |
<> | 144:ef7eb2e8f9f7 | 324 | /* Disable the OPAMPs */ |
<> | 144:ef7eb2e8f9f7 | 325 | CLEAR_BIT (hopamp1->Instance->CSR, OPAMP_CSR_OPAMPxEN); |
<> | 144:ef7eb2e8f9f7 | 326 | CLEAR_BIT (hopamp2->Instance->CSR, OPAMP_CSR_OPAMPxEN); |
<> | 144:ef7eb2e8f9f7 | 327 | |
<> | 144:ef7eb2e8f9f7 | 328 | /* Disable calibration & set normal mode (operating mode) */ |
<> | 144:ef7eb2e8f9f7 | 329 | CLEAR_BIT (hopamp1->Instance->CSR, OPAMP_CSR_CALON); |
<> | 144:ef7eb2e8f9f7 | 330 | CLEAR_BIT (hopamp2->Instance->CSR, OPAMP_CSR_CALON); |
<> | 144:ef7eb2e8f9f7 | 331 | |
<> | 144:ef7eb2e8f9f7 | 332 | /* Self calibration is successful */ |
<> | 144:ef7eb2e8f9f7 | 333 | /* Store calibration (user trimming) results in init structure. */ |
<> | 144:ef7eb2e8f9f7 | 334 | |
<> | 144:ef7eb2e8f9f7 | 335 | /* Set user trimming mode */ |
<> | 144:ef7eb2e8f9f7 | 336 | hopamp1->Init.UserTrimming = OPAMP_TRIMMING_USER; |
<> | 144:ef7eb2e8f9f7 | 337 | hopamp2->Init.UserTrimming = OPAMP_TRIMMING_USER; |
<> | 144:ef7eb2e8f9f7 | 338 | |
<> | 144:ef7eb2e8f9f7 | 339 | /* Affect calibration parameters depending on mode normal/low power */ |
<> | 144:ef7eb2e8f9f7 | 340 | if (hopamp1->Init.PowerMode != OPAMP_POWERMODE_LOWPOWER) |
<> | 144:ef7eb2e8f9f7 | 341 | { |
<> | 144:ef7eb2e8f9f7 | 342 | /* Write calibration result N */ |
<> | 144:ef7eb2e8f9f7 | 343 | hopamp1->Init.TrimmingValueN = trimmingvaluen1; |
<> | 144:ef7eb2e8f9f7 | 344 | /* Write calibration result P */ |
<> | 144:ef7eb2e8f9f7 | 345 | hopamp1->Init.TrimmingValueP = trimmingvaluep1; |
<> | 144:ef7eb2e8f9f7 | 346 | } |
<> | 144:ef7eb2e8f9f7 | 347 | else |
<> | 144:ef7eb2e8f9f7 | 348 | { |
<> | 144:ef7eb2e8f9f7 | 349 | /* Write calibration result N */ |
<> | 144:ef7eb2e8f9f7 | 350 | hopamp1->Init.TrimmingValueNLowPower = trimmingvaluen1; |
<> | 144:ef7eb2e8f9f7 | 351 | /* Write calibration result P */ |
<> | 144:ef7eb2e8f9f7 | 352 | hopamp1->Init.TrimmingValuePLowPower = trimmingvaluep1; |
<> | 144:ef7eb2e8f9f7 | 353 | } |
<> | 144:ef7eb2e8f9f7 | 354 | |
<> | 144:ef7eb2e8f9f7 | 355 | if (hopamp2->Init.PowerMode != OPAMP_POWERMODE_LOWPOWER) |
<> | 144:ef7eb2e8f9f7 | 356 | { |
<> | 144:ef7eb2e8f9f7 | 357 | /* Write calibration result N */ |
<> | 144:ef7eb2e8f9f7 | 358 | hopamp2->Init.TrimmingValueN = trimmingvaluen2; |
<> | 144:ef7eb2e8f9f7 | 359 | /* Write calibration result P */ |
<> | 144:ef7eb2e8f9f7 | 360 | hopamp2->Init.TrimmingValueP = trimmingvaluep2; |
<> | 144:ef7eb2e8f9f7 | 361 | } |
<> | 144:ef7eb2e8f9f7 | 362 | else |
<> | 144:ef7eb2e8f9f7 | 363 | { |
<> | 144:ef7eb2e8f9f7 | 364 | /* Write calibration result N */ |
<> | 144:ef7eb2e8f9f7 | 365 | hopamp2->Init.TrimmingValueNLowPower = trimmingvaluen2; |
<> | 144:ef7eb2e8f9f7 | 366 | /* Write calibration result P */ |
<> | 144:ef7eb2e8f9f7 | 367 | hopamp2->Init.TrimmingValuePLowPower = trimmingvaluep2; |
<> | 144:ef7eb2e8f9f7 | 368 | } |
<> | 144:ef7eb2e8f9f7 | 369 | |
<> | 144:ef7eb2e8f9f7 | 370 | /* Update OPAMP state */ |
<> | 144:ef7eb2e8f9f7 | 371 | hopamp1->State = HAL_OPAMP_STATE_READY; |
<> | 144:ef7eb2e8f9f7 | 372 | hopamp2->State = HAL_OPAMP_STATE_READY; |
<> | 144:ef7eb2e8f9f7 | 373 | |
<> | 144:ef7eb2e8f9f7 | 374 | /* Restore OPAMP mode after calibration */ |
<> | 144:ef7eb2e8f9f7 | 375 | MODIFY_REG(hopamp1->Instance->CSR, OPAMP_CSR_OPAMODE, opampmode1); |
<> | 144:ef7eb2e8f9f7 | 376 | MODIFY_REG(hopamp2->Instance->CSR, OPAMP_CSR_OPAMODE, opampmode2); |
<> | 144:ef7eb2e8f9f7 | 377 | } |
<> | 144:ef7eb2e8f9f7 | 378 | else |
<> | 144:ef7eb2e8f9f7 | 379 | { |
<> | 144:ef7eb2e8f9f7 | 380 | /* At least one OPAMP can not be calibrated */ |
<> | 144:ef7eb2e8f9f7 | 381 | status = HAL_ERROR; |
<> | 144:ef7eb2e8f9f7 | 382 | } |
<> | 144:ef7eb2e8f9f7 | 383 | } |
<> | 144:ef7eb2e8f9f7 | 384 | return status; |
<> | 144:ef7eb2e8f9f7 | 385 | } |
<> | 144:ef7eb2e8f9f7 | 386 | |
<> | 144:ef7eb2e8f9f7 | 387 | /** |
<> | 144:ef7eb2e8f9f7 | 388 | * @} |
<> | 144:ef7eb2e8f9f7 | 389 | */ |
<> | 144:ef7eb2e8f9f7 | 390 | |
<> | 144:ef7eb2e8f9f7 | 391 | #endif |
<> | 144:ef7eb2e8f9f7 | 392 | |
<> | 144:ef7eb2e8f9f7 | 393 | /** @defgroup OPAMPEx_Exported_Functions_Group2 Peripheral Control functions |
<> | 144:ef7eb2e8f9f7 | 394 | * @brief Peripheral Control functions |
<> | 144:ef7eb2e8f9f7 | 395 | * |
<> | 144:ef7eb2e8f9f7 | 396 | @verbatim |
<> | 144:ef7eb2e8f9f7 | 397 | =============================================================================== |
<> | 144:ef7eb2e8f9f7 | 398 | ##### Peripheral Control functions ##### |
<> | 144:ef7eb2e8f9f7 | 399 | =============================================================================== |
<> | 144:ef7eb2e8f9f7 | 400 | [..] |
<> | 144:ef7eb2e8f9f7 | 401 | (+) OPAMP unlock. |
<> | 144:ef7eb2e8f9f7 | 402 | |
<> | 144:ef7eb2e8f9f7 | 403 | @endverbatim |
<> | 144:ef7eb2e8f9f7 | 404 | * @{ |
<> | 144:ef7eb2e8f9f7 | 405 | */ |
<> | 144:ef7eb2e8f9f7 | 406 | |
<> | 144:ef7eb2e8f9f7 | 407 | /** |
<> | 144:ef7eb2e8f9f7 | 408 | * @brief Unlock the selected OPAMP configuration. |
<> | 144:ef7eb2e8f9f7 | 409 | * @note This function must be called only when OPAMP is in state "locked". |
<> | 144:ef7eb2e8f9f7 | 410 | * @param hopamp: OPAMP handle |
<> | 144:ef7eb2e8f9f7 | 411 | * @retval HAL status |
<> | 144:ef7eb2e8f9f7 | 412 | */ |
<> | 144:ef7eb2e8f9f7 | 413 | HAL_StatusTypeDef HAL_OPAMPEx_Unlock(OPAMP_HandleTypeDef* hopamp) |
<> | 144:ef7eb2e8f9f7 | 414 | { |
<> | 144:ef7eb2e8f9f7 | 415 | HAL_StatusTypeDef status = HAL_OK; |
<> | 144:ef7eb2e8f9f7 | 416 | |
<> | 144:ef7eb2e8f9f7 | 417 | /* Check the OPAMP handle allocation */ |
<> | 144:ef7eb2e8f9f7 | 418 | /* Check if OPAMP locked */ |
<> | 144:ef7eb2e8f9f7 | 419 | if((hopamp == NULL) || (hopamp->State == HAL_OPAMP_STATE_RESET) |
<> | 144:ef7eb2e8f9f7 | 420 | || (hopamp->State == HAL_OPAMP_STATE_READY) |
<> | 144:ef7eb2e8f9f7 | 421 | || (hopamp->State == HAL_OPAMP_STATE_CALIBBUSY) |
<> | 144:ef7eb2e8f9f7 | 422 | || (hopamp->State == HAL_OPAMP_STATE_BUSY)) |
<> | 144:ef7eb2e8f9f7 | 423 | |
<> | 144:ef7eb2e8f9f7 | 424 | { |
<> | 144:ef7eb2e8f9f7 | 425 | status = HAL_ERROR; |
<> | 144:ef7eb2e8f9f7 | 426 | } |
<> | 144:ef7eb2e8f9f7 | 427 | else |
<> | 144:ef7eb2e8f9f7 | 428 | { |
<> | 144:ef7eb2e8f9f7 | 429 | /* Check the parameter */ |
<> | 144:ef7eb2e8f9f7 | 430 | assert_param(IS_OPAMP_ALL_INSTANCE(hopamp->Instance)); |
<> | 144:ef7eb2e8f9f7 | 431 | |
<> | 144:ef7eb2e8f9f7 | 432 | /* OPAMP state changed to locked */ |
<> | 144:ef7eb2e8f9f7 | 433 | hopamp->State = HAL_OPAMP_STATE_BUSY; |
<> | 144:ef7eb2e8f9f7 | 434 | } |
<> | 144:ef7eb2e8f9f7 | 435 | return status; |
<> | 144:ef7eb2e8f9f7 | 436 | } |
<> | 144:ef7eb2e8f9f7 | 437 | |
<> | 144:ef7eb2e8f9f7 | 438 | /** |
<> | 144:ef7eb2e8f9f7 | 439 | * @} |
<> | 144:ef7eb2e8f9f7 | 440 | */ |
<> | 144:ef7eb2e8f9f7 | 441 | |
<> | 144:ef7eb2e8f9f7 | 442 | /** |
<> | 144:ef7eb2e8f9f7 | 443 | * @} |
<> | 144:ef7eb2e8f9f7 | 444 | */ |
<> | 144:ef7eb2e8f9f7 | 445 | |
<> | 144:ef7eb2e8f9f7 | 446 | #endif /* HAL_OPAMP_MODULE_ENABLED */ |
<> | 144:ef7eb2e8f9f7 | 447 | /** |
<> | 144:ef7eb2e8f9f7 | 448 | * @} |
<> | 144:ef7eb2e8f9f7 | 449 | */ |
<> | 144:ef7eb2e8f9f7 | 450 | |
<> | 144:ef7eb2e8f9f7 | 451 | /** |
<> | 144:ef7eb2e8f9f7 | 452 | * @} |
<> | 144:ef7eb2e8f9f7 | 453 | */ |
<> | 144:ef7eb2e8f9f7 | 454 | |
<> | 144:ef7eb2e8f9f7 | 455 | /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/ |