en 129 / mbed-dev

fix LPC812 PWM

Dependents:   IR_LED_Send

Fork of mbed-dev by mbed official

targets/cmsis/TARGET_STM/TARGET_STM32L4/stm32l4xx_hal_opamp_ex.c@129:2e517c56bcfb, 2016-05-16 (annotated)

Committer:
nameless129
Date:
Mon May 16 16:50:30 2016 +0000
Revision:
129:2e517c56bcfb
Parent:
0:9b334a45a8ff 
PWM Fix:Duty 0%??H???????????????

Who changed what in which revision?

UserRevisionLine numberNew contents of line
bogdanm 0:9b334a45a8ff 1 /**
bogdanm 0:9b334a45a8ff 2 ******************************************************************************
bogdanm 0:9b334a45a8ff 3 * @file stm32l4xx_hal_opamp_ex.c
bogdanm 0:9b334a45a8ff 4 * @author MCD Application Team
bogdanm 0:9b334a45a8ff 5 * @version V1.0.0
bogdanm 0:9b334a45a8ff 6 * @date 26-June-2015
bogdanm 0:9b334a45a8ff 7 * @brief Extended OPAMP HAL module driver.
bogdanm 0:9b334a45a8ff 8 * This file provides firmware functions to manage the following
bogdanm 0:9b334a45a8ff 9 * functionalities of the operational amplifier(s)(OPAMP1, OPAMP2 etc)
bogdanm 0:9b334a45a8ff 10 * peripheral:
bogdanm 0:9b334a45a8ff 11 * + Extended Initialization and de-initialization functions
bogdanm 0:9b334a45a8ff 12 * + Extended Peripheral Control functions
bogdanm 0:9b334a45a8ff 13 *
bogdanm 0:9b334a45a8ff 14 @verbatim
bogdanm 0:9b334a45a8ff 15 ******************************************************************************
bogdanm 0:9b334a45a8ff 16 * @attention
bogdanm 0:9b334a45a8ff 17 *
bogdanm 0:9b334a45a8ff 18 * <h2><center>&copy; COPYRIGHT(c) 2015 STMicroelectronics</center></h2>
bogdanm 0:9b334a45a8ff 19 *
bogdanm 0:9b334a45a8ff 20 * Redistribution and use in source and binary forms, with or without modification,
bogdanm 0:9b334a45a8ff 21 * are permitted provided that the following conditions are met:
bogdanm 0:9b334a45a8ff 22 * 1. Redistributions of source code must retain the above copyright notice,
bogdanm 0:9b334a45a8ff 23 * this list of conditions and the following disclaimer.
bogdanm 0:9b334a45a8ff 24 * 2. Redistributions in binary form must reproduce the above copyright notice,
bogdanm 0:9b334a45a8ff 25 * this list of conditions and the following disclaimer in the documentation
bogdanm 0:9b334a45a8ff 26 * and/or other materials provided with the distribution.
bogdanm 0:9b334a45a8ff 27 * 3. Neither the name of STMicroelectronics nor the names of its contributors
bogdanm 0:9b334a45a8ff 28 * may be used to endorse or promote products derived from this software
bogdanm 0:9b334a45a8ff 29 * without specific prior written permission.
bogdanm 0:9b334a45a8ff 30 *
bogdanm 0:9b334a45a8ff 31 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
bogdanm 0:9b334a45a8ff 32 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
bogdanm 0:9b334a45a8ff 33 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
bogdanm 0:9b334a45a8ff 34 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
bogdanm 0:9b334a45a8ff 35 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
bogdanm 0:9b334a45a8ff 36 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
bogdanm 0:9b334a45a8ff 37 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
bogdanm 0:9b334a45a8ff 38 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
bogdanm 0:9b334a45a8ff 39 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
bogdanm 0:9b334a45a8ff 40 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
bogdanm 0:9b334a45a8ff 41 *
bogdanm 0:9b334a45a8ff 42 ******************************************************************************
bogdanm 0:9b334a45a8ff 43 */
bogdanm 0:9b334a45a8ff 44
bogdanm 0:9b334a45a8ff 45 /* Includes ------------------------------------------------------------------*/
bogdanm 0:9b334a45a8ff 46 #include "stm32l4xx_hal.h"
bogdanm 0:9b334a45a8ff 47
bogdanm 0:9b334a45a8ff 48 /** @addtogroup STM32L4xx_HAL_Driver
bogdanm 0:9b334a45a8ff 49 * @{
bogdanm 0:9b334a45a8ff 50 */
bogdanm 0:9b334a45a8ff 51
bogdanm 0:9b334a45a8ff 52 /** @defgroup OPAMPEx OPAMPEx
bogdanm 0:9b334a45a8ff 53 * @brief OPAMP Extended HAL module driver
bogdanm 0:9b334a45a8ff 54 * @{
bogdanm 0:9b334a45a8ff 55 */
bogdanm 0:9b334a45a8ff 56
bogdanm 0:9b334a45a8ff 57 #ifdef HAL_OPAMP_MODULE_ENABLED
bogdanm 0:9b334a45a8ff 58
bogdanm 0:9b334a45a8ff 59 /* Private typedef -----------------------------------------------------------*/
bogdanm 0:9b334a45a8ff 60 /* Private define ------------------------------------------------------------*/
bogdanm 0:9b334a45a8ff 61 /* Private macro -------------------------------------------------------------*/
bogdanm 0:9b334a45a8ff 62 /* Private variables ---------------------------------------------------------*/
bogdanm 0:9b334a45a8ff 63 /* Private function prototypes -----------------------------------------------*/
bogdanm 0:9b334a45a8ff 64 /* Exported functions --------------------------------------------------------*/
bogdanm 0:9b334a45a8ff 65
bogdanm 0:9b334a45a8ff 66 /** @defgroup OPAMP_Exported_Functions OPAMP Exported Functions
bogdanm 0:9b334a45a8ff 67 * @{
bogdanm 0:9b334a45a8ff 68 */
bogdanm 0:9b334a45a8ff 69
bogdanm 0:9b334a45a8ff 70 /** @addtogroup OPAMPEx_Exported_Functions_Group1
bogdanm 0:9b334a45a8ff 71 * @brief Extended operation functions
bogdanm 0:9b334a45a8ff 72 *
bogdanm 0:9b334a45a8ff 73 @verbatim
bogdanm 0:9b334a45a8ff 74 ===============================================================================
bogdanm 0:9b334a45a8ff 75 ##### Extended IO operation functions #####
bogdanm 0:9b334a45a8ff 76 ===============================================================================
bogdanm 0:9b334a45a8ff 77 [..]
bogdanm 0:9b334a45a8ff 78 (+) OPAMP Self calibration.
bogdanm 0:9b334a45a8ff 79
bogdanm 0:9b334a45a8ff 80 @endverbatim
bogdanm 0:9b334a45a8ff 81 * @{
bogdanm 0:9b334a45a8ff 82 */
bogdanm 0:9b334a45a8ff 83
bogdanm 0:9b334a45a8ff 84 /* 2 OPAMPS available */
bogdanm 0:9b334a45a8ff 85 /* 2 OPAMPS can be calibrated in parallel */
bogdanm 0:9b334a45a8ff 86
bogdanm 0:9b334a45a8ff 87 /**
bogdanm 0:9b334a45a8ff 88 * @brief Run the self calibration of the 2 OPAMPs in parallel.
bogdanm 0:9b334a45a8ff 89 * @note Trimming values (PMOS & NMOS) are updated and user trimming is
bogdanm 0:9b334a45a8ff 90 * enabled is calibration is successful.
bogdanm 0:9b334a45a8ff 91 * @note Calibration is performed in the mode specified in OPAMP init
bogdanm 0:9b334a45a8ff 92 * structure (mode normal or low-power). To perform calibration for
bogdanm 0:9b334a45a8ff 93 * both modes, repeat this function twice after OPAMP init structure
bogdanm 0:9b334a45a8ff 94 * accordingly updated.
bogdanm 0:9b334a45a8ff 95 * @note Calibration runs about 10 ms (5 dichotomy steps, repeated for P
bogdanm 0:9b334a45a8ff 96 * and N transistors: 10 steps with 1 ms for each step).
bogdanm 0:9b334a45a8ff 97 * @param hopamp1 handle
bogdanm 0:9b334a45a8ff 98 * @param hopamp2 handle
bogdanm 0:9b334a45a8ff 99 * @retval HAL status
bogdanm 0:9b334a45a8ff 100 */
bogdanm 0:9b334a45a8ff 101
bogdanm 0:9b334a45a8ff 102 HAL_StatusTypeDef HAL_OPAMPEx_SelfCalibrateAll(OPAMP_HandleTypeDef *hopamp1, OPAMP_HandleTypeDef *hopamp2)
bogdanm 0:9b334a45a8ff 103 {
bogdanm 0:9b334a45a8ff 104 HAL_StatusTypeDef status = HAL_OK;
bogdanm 0:9b334a45a8ff 105
bogdanm 0:9b334a45a8ff 106 uint32_t trimmingvaluen1 = 0;
bogdanm 0:9b334a45a8ff 107 uint32_t trimmingvaluep1 = 0;
bogdanm 0:9b334a45a8ff 108 uint32_t trimmingvaluen2 = 0;
bogdanm 0:9b334a45a8ff 109 uint32_t trimmingvaluep2 = 0;
bogdanm 0:9b334a45a8ff 110
bogdanm 0:9b334a45a8ff 111 /* Selection of register of trimming depending on power mode: OTR or LPOTR */
bogdanm 0:9b334a45a8ff 112 __IO uint32_t* tmp_opamp1_reg_trimming;
bogdanm 0:9b334a45a8ff 113 __IO uint32_t* tmp_opamp2_reg_trimming;
bogdanm 0:9b334a45a8ff 114
bogdanm 0:9b334a45a8ff 115 uint32_t delta;
bogdanm 0:9b334a45a8ff 116
bogdanm 0:9b334a45a8ff 117 if((hopamp1 == NULL) || (hopamp1->State == HAL_OPAMP_STATE_BUSYLOCKED) || \
bogdanm 0:9b334a45a8ff 118 (hopamp2 == NULL) || (hopamp2->State == HAL_OPAMP_STATE_BUSYLOCKED))
bogdanm 0:9b334a45a8ff 119 {
bogdanm 0:9b334a45a8ff 120 status = HAL_ERROR;
bogdanm 0:9b334a45a8ff 121 }
bogdanm 0:9b334a45a8ff 122 else
bogdanm 0:9b334a45a8ff 123 {
bogdanm 0:9b334a45a8ff 124 /* Check if OPAMP in calibration mode and calibration not yet enable */
bogdanm 0:9b334a45a8ff 125 if((hopamp1->State == HAL_OPAMP_STATE_READY) && (hopamp2->State == HAL_OPAMP_STATE_READY))
bogdanm 0:9b334a45a8ff 126 {
bogdanm 0:9b334a45a8ff 127 /* Check the parameter */
bogdanm 0:9b334a45a8ff 128 assert_param(IS_OPAMP_ALL_INSTANCE(hopamp1->Instance));
bogdanm 0:9b334a45a8ff 129 assert_param(IS_OPAMP_ALL_INSTANCE(hopamp2->Instance));
bogdanm 0:9b334a45a8ff 130
bogdanm 0:9b334a45a8ff 131 assert_param(IS_OPAMP_POWERMODE(hopamp1->Init.PowerMode));
bogdanm 0:9b334a45a8ff 132 assert_param(IS_OPAMP_POWERMODE(hopamp2->Init.PowerMode));
bogdanm 0:9b334a45a8ff 133
bogdanm 0:9b334a45a8ff 134 /* user trimming values are used for offset calibration */
bogdanm 0:9b334a45a8ff 135 SET_BIT(hopamp1->Instance->CSR, OPAMP_CSR_USERTRIM);
bogdanm 0:9b334a45a8ff 136 SET_BIT(hopamp2->Instance->CSR, OPAMP_CSR_USERTRIM);
bogdanm 0:9b334a45a8ff 137
bogdanm 0:9b334a45a8ff 138 /* Select trimming settings depending on power mode */
bogdanm 0:9b334a45a8ff 139 if (hopamp1->Init.PowerMode == OPAMP_POWERMODE_NORMAL)
bogdanm 0:9b334a45a8ff 140 {
bogdanm 0:9b334a45a8ff 141 tmp_opamp1_reg_trimming = &OPAMP1->OTR;
bogdanm 0:9b334a45a8ff 142 }
bogdanm 0:9b334a45a8ff 143 else
bogdanm 0:9b334a45a8ff 144 {
bogdanm 0:9b334a45a8ff 145 tmp_opamp1_reg_trimming = &OPAMP1->LPOTR;
bogdanm 0:9b334a45a8ff 146 }
bogdanm 0:9b334a45a8ff 147
bogdanm 0:9b334a45a8ff 148 if (hopamp2->Init.PowerMode == OPAMP_POWERMODE_NORMAL)
bogdanm 0:9b334a45a8ff 149 {
bogdanm 0:9b334a45a8ff 150 tmp_opamp2_reg_trimming = &OPAMP2->OTR;
bogdanm 0:9b334a45a8ff 151 }
bogdanm 0:9b334a45a8ff 152 else
bogdanm 0:9b334a45a8ff 153 {
bogdanm 0:9b334a45a8ff 154 tmp_opamp2_reg_trimming = &OPAMP2->LPOTR;
bogdanm 0:9b334a45a8ff 155 }
bogdanm 0:9b334a45a8ff 156
bogdanm 0:9b334a45a8ff 157 /* Enable calibration */
bogdanm 0:9b334a45a8ff 158 SET_BIT (hopamp1->Instance->CSR, OPAMP_CSR_CALON);
bogdanm 0:9b334a45a8ff 159 SET_BIT (hopamp2->Instance->CSR, OPAMP_CSR_CALON);
bogdanm 0:9b334a45a8ff 160
bogdanm 0:9b334a45a8ff 161 /* 1st calibration - N */
bogdanm 0:9b334a45a8ff 162 CLEAR_BIT (hopamp1->Instance->CSR, OPAMP_CSR_CALSEL);
bogdanm 0:9b334a45a8ff 163 CLEAR_BIT (hopamp2->Instance->CSR, OPAMP_CSR_CALSEL);
bogdanm 0:9b334a45a8ff 164
bogdanm 0:9b334a45a8ff 165 /* Enable the selected opamp */
bogdanm 0:9b334a45a8ff 166 SET_BIT (hopamp1->Instance->CSR, OPAMP_CSR_OPAMPxEN);
bogdanm 0:9b334a45a8ff 167 SET_BIT (hopamp2->Instance->CSR, OPAMP_CSR_OPAMPxEN);
bogdanm 0:9b334a45a8ff 168
bogdanm 0:9b334a45a8ff 169 /* Init trimming counter */
bogdanm 0:9b334a45a8ff 170 /* Medium value */
bogdanm 0:9b334a45a8ff 171 trimmingvaluen1 = 16;
bogdanm 0:9b334a45a8ff 172 trimmingvaluen2 = 16;
bogdanm 0:9b334a45a8ff 173 delta = 8;
bogdanm 0:9b334a45a8ff 174
bogdanm 0:9b334a45a8ff 175 while (delta != 0)
bogdanm 0:9b334a45a8ff 176 {
bogdanm 0:9b334a45a8ff 177 /* Set candidate trimming */
bogdanm 0:9b334a45a8ff 178 /* OPAMP_POWERMODE_NORMAL */
bogdanm 0:9b334a45a8ff 179 MODIFY_REG(*tmp_opamp1_reg_trimming, OPAMP_OTR_TRIMOFFSETN, trimmingvaluen1);
bogdanm 0:9b334a45a8ff 180 MODIFY_REG(*tmp_opamp2_reg_trimming, OPAMP_OTR_TRIMOFFSETN, trimmingvaluen2);
bogdanm 0:9b334a45a8ff 181
bogdanm 0:9b334a45a8ff 182 /* OFFTRIMmax delay 1 ms as per datasheet (electrical characteristics */
bogdanm 0:9b334a45a8ff 183 /* Offset trim time: during calibration, minimum time needed between */
bogdanm 0:9b334a45a8ff 184 /* two steps to have 1 mV accuracy */
bogdanm 0:9b334a45a8ff 185 HAL_Delay(OPAMP_TRIMMING_DELAY);
bogdanm 0:9b334a45a8ff 186
bogdanm 0:9b334a45a8ff 187 if (READ_BIT(hopamp1->Instance->CSR, OPAMP_CSR_CALOUT) != RESET)
bogdanm 0:9b334a45a8ff 188 {
bogdanm 0:9b334a45a8ff 189 /* OPAMP_CSR_CALOUT is HIGH try lower trimming */
bogdanm 0:9b334a45a8ff 190 trimmingvaluen1 -= delta;
bogdanm 0:9b334a45a8ff 191 }
bogdanm 0:9b334a45a8ff 192 else
bogdanm 0:9b334a45a8ff 193 {
bogdanm 0:9b334a45a8ff 194 /* OPAMP_CSR_CALOUT is LOW try higher trimming */
bogdanm 0:9b334a45a8ff 195 trimmingvaluen1 += delta;
bogdanm 0:9b334a45a8ff 196 }
bogdanm 0:9b334a45a8ff 197
bogdanm 0:9b334a45a8ff 198 if (READ_BIT(hopamp2->Instance->CSR, OPAMP_CSR_CALOUT) != RESET)
bogdanm 0:9b334a45a8ff 199 {
bogdanm 0:9b334a45a8ff 200 /* OPAMP_CSR_CALOUT is HIGH try lower trimming */
bogdanm 0:9b334a45a8ff 201 trimmingvaluen2 -= delta;
bogdanm 0:9b334a45a8ff 202 }
bogdanm 0:9b334a45a8ff 203 else
bogdanm 0:9b334a45a8ff 204 {
bogdanm 0:9b334a45a8ff 205 /* OPAMP_CSR_CALOUT is LOW try higher trimming */
bogdanm 0:9b334a45a8ff 206 trimmingvaluen2 += delta;
bogdanm 0:9b334a45a8ff 207 }
bogdanm 0:9b334a45a8ff 208 /* Divide range by 2 to continue dichotomy sweep */
bogdanm 0:9b334a45a8ff 209 delta >>= 1;
bogdanm 0:9b334a45a8ff 210 }
bogdanm 0:9b334a45a8ff 211
bogdanm 0:9b334a45a8ff 212 /* Still need to check if right calibration is current value or one step below */
bogdanm 0:9b334a45a8ff 213 /* Indeed the first value that causes the OUTCAL bit to change from 0 to 1 */
bogdanm 0:9b334a45a8ff 214 /* Set candidate trimming */
bogdanm 0:9b334a45a8ff 215 MODIFY_REG(*tmp_opamp1_reg_trimming, OPAMP_OTR_TRIMOFFSETN, trimmingvaluen1);
bogdanm 0:9b334a45a8ff 216 MODIFY_REG(*tmp_opamp2_reg_trimming, OPAMP_OTR_TRIMOFFSETN, trimmingvaluen2);
bogdanm 0:9b334a45a8ff 217
bogdanm 0:9b334a45a8ff 218 /* OFFTRIMmax delay 1 ms as per datasheet (electrical characteristics */
bogdanm 0:9b334a45a8ff 219 /* Offset trim time: during calibration, minimum time needed between */
bogdanm 0:9b334a45a8ff 220 /* two steps to have 1 mV accuracy */
bogdanm 0:9b334a45a8ff 221 HAL_Delay(OPAMP_TRIMMING_DELAY);
bogdanm 0:9b334a45a8ff 222
bogdanm 0:9b334a45a8ff 223 if ((READ_BIT(hopamp1->Instance->CSR, OPAMP_CSR_CALOUT)) == 0)
bogdanm 0:9b334a45a8ff 224 {
bogdanm 0:9b334a45a8ff 225 /* Trimming value is actually one value more */
bogdanm 0:9b334a45a8ff 226 trimmingvaluen1++;
bogdanm 0:9b334a45a8ff 227 MODIFY_REG(*tmp_opamp1_reg_trimming, OPAMP_OTR_TRIMOFFSETN, trimmingvaluen1);
bogdanm 0:9b334a45a8ff 228 }
bogdanm 0:9b334a45a8ff 229
bogdanm 0:9b334a45a8ff 230 if ((READ_BIT(hopamp2->Instance->CSR, OPAMP_CSR_CALOUT)) == 0)
bogdanm 0:9b334a45a8ff 231 {
bogdanm 0:9b334a45a8ff 232 /* Trimming value is actually one value more */
bogdanm 0:9b334a45a8ff 233 trimmingvaluen2++;
bogdanm 0:9b334a45a8ff 234 MODIFY_REG(*tmp_opamp2_reg_trimming, OPAMP_OTR_TRIMOFFSETN, trimmingvaluen2);
bogdanm 0:9b334a45a8ff 235 }
bogdanm 0:9b334a45a8ff 236
bogdanm 0:9b334a45a8ff 237 /* 2nd calibration - P */
bogdanm 0:9b334a45a8ff 238 SET_BIT (hopamp1->Instance->CSR, OPAMP_CSR_CALSEL);
bogdanm 0:9b334a45a8ff 239 SET_BIT (hopamp2->Instance->CSR, OPAMP_CSR_CALSEL);
bogdanm 0:9b334a45a8ff 240
bogdanm 0:9b334a45a8ff 241 /* Init trimming counter */
bogdanm 0:9b334a45a8ff 242 /* Medium value */
bogdanm 0:9b334a45a8ff 243 trimmingvaluep1 = 16;
bogdanm 0:9b334a45a8ff 244 trimmingvaluep2 = 16;
bogdanm 0:9b334a45a8ff 245 delta = 8;
bogdanm 0:9b334a45a8ff 246
bogdanm 0:9b334a45a8ff 247 while (delta != 0)
bogdanm 0:9b334a45a8ff 248 {
bogdanm 0:9b334a45a8ff 249 /* Set candidate trimming */
bogdanm 0:9b334a45a8ff 250 /* OPAMP_POWERMODE_NORMAL */
bogdanm 0:9b334a45a8ff 251 MODIFY_REG(*tmp_opamp1_reg_trimming, OPAMP_OTR_TRIMOFFSETP, (trimmingvaluep1<<OPAMP_INPUT_NONINVERTING));
bogdanm 0:9b334a45a8ff 252 MODIFY_REG(*tmp_opamp2_reg_trimming, OPAMP_OTR_TRIMOFFSETP, (trimmingvaluep2<<OPAMP_INPUT_NONINVERTING));
bogdanm 0:9b334a45a8ff 253
bogdanm 0:9b334a45a8ff 254 /* OFFTRIMmax delay 1 ms as per datasheet (electrical characteristics */
bogdanm 0:9b334a45a8ff 255 /* Offset trim time: during calibration, minimum time needed between */
bogdanm 0:9b334a45a8ff 256 /* two steps to have 1 mV accuracy */
bogdanm 0:9b334a45a8ff 257 HAL_Delay(OPAMP_TRIMMING_DELAY);
bogdanm 0:9b334a45a8ff 258
bogdanm 0:9b334a45a8ff 259 if (READ_BIT(hopamp1->Instance->CSR, OPAMP_CSR_CALOUT) != RESET)
bogdanm 0:9b334a45a8ff 260 {
bogdanm 0:9b334a45a8ff 261 /* OPAMP_CSR_CALOUT is HIGH try higher trimming */
bogdanm 0:9b334a45a8ff 262 trimmingvaluep1 += delta;
bogdanm 0:9b334a45a8ff 263 }
bogdanm 0:9b334a45a8ff 264 else
bogdanm 0:9b334a45a8ff 265 {
bogdanm 0:9b334a45a8ff 266 /* OPAMP_CSR_CALOUT is HIGH try lower trimming */
bogdanm 0:9b334a45a8ff 267 trimmingvaluep1 -= delta;
bogdanm 0:9b334a45a8ff 268 }
bogdanm 0:9b334a45a8ff 269
bogdanm 0:9b334a45a8ff 270 if (READ_BIT(hopamp2->Instance->CSR, OPAMP_CSR_CALOUT) != RESET)
bogdanm 0:9b334a45a8ff 271 {
bogdanm 0:9b334a45a8ff 272 /* OPAMP_CSR_CALOUT is HIGH try higher trimming */
bogdanm 0:9b334a45a8ff 273 trimmingvaluep2 += delta;
bogdanm 0:9b334a45a8ff 274 }
bogdanm 0:9b334a45a8ff 275 else
bogdanm 0:9b334a45a8ff 276 {
bogdanm 0:9b334a45a8ff 277 /* OPAMP_CSR_CALOUT is LOW try lower trimming */
bogdanm 0:9b334a45a8ff 278 trimmingvaluep2 -= delta;
bogdanm 0:9b334a45a8ff 279 }
bogdanm 0:9b334a45a8ff 280 /* Divide range by 2 to continue dichotomy sweep */
bogdanm 0:9b334a45a8ff 281 delta >>= 1;
bogdanm 0:9b334a45a8ff 282 }
bogdanm 0:9b334a45a8ff 283
bogdanm 0:9b334a45a8ff 284 /* Still need to check if right calibration is current value or one step below */
bogdanm 0:9b334a45a8ff 285 /* Indeed the first value that causes the OUTCAL bit to change from 1 to 0 */
bogdanm 0:9b334a45a8ff 286 /* Set candidate trimming */
bogdanm 0:9b334a45a8ff 287 MODIFY_REG(*tmp_opamp1_reg_trimming, OPAMP_OTR_TRIMOFFSETP, (trimmingvaluep1<<OPAMP_INPUT_NONINVERTING));
bogdanm 0:9b334a45a8ff 288 MODIFY_REG(*tmp_opamp2_reg_trimming, OPAMP_OTR_TRIMOFFSETP, (trimmingvaluep2<<OPAMP_INPUT_NONINVERTING));
bogdanm 0:9b334a45a8ff 289
bogdanm 0:9b334a45a8ff 290 /* OFFTRIMmax delay 1 ms as per datasheet (electrical characteristics */
bogdanm 0:9b334a45a8ff 291 /* Offset trim time: during calibration, minimum time needed between */
bogdanm 0:9b334a45a8ff 292 /* two steps to have 1 mV accuracy */
bogdanm 0:9b334a45a8ff 293 HAL_Delay(OPAMP_TRIMMING_DELAY);
bogdanm 0:9b334a45a8ff 294
bogdanm 0:9b334a45a8ff 295 if (READ_BIT(hopamp1->Instance->CSR, OPAMP_CSR_CALOUT) != RESET)
bogdanm 0:9b334a45a8ff 296 {
bogdanm 0:9b334a45a8ff 297 /* Trimming value is actually one value more */
bogdanm 0:9b334a45a8ff 298 trimmingvaluep1++;
bogdanm 0:9b334a45a8ff 299 MODIFY_REG(*tmp_opamp1_reg_trimming, OPAMP_OTR_TRIMOFFSETP, (trimmingvaluep1<<OPAMP_INPUT_NONINVERTING));
bogdanm 0:9b334a45a8ff 300 }
bogdanm 0:9b334a45a8ff 301
bogdanm 0:9b334a45a8ff 302 if (READ_BIT(hopamp2->Instance->CSR, OPAMP_CSR_CALOUT) != RESET)
bogdanm 0:9b334a45a8ff 303 {
bogdanm 0:9b334a45a8ff 304 /* Trimming value is actually one value more */
bogdanm 0:9b334a45a8ff 305 trimmingvaluep2++;
bogdanm 0:9b334a45a8ff 306 MODIFY_REG(*tmp_opamp2_reg_trimming, OPAMP_OTR_TRIMOFFSETP, (trimmingvaluep2<<OPAMP_INPUT_NONINVERTING));
bogdanm 0:9b334a45a8ff 307 }
bogdanm 0:9b334a45a8ff 308
bogdanm 0:9b334a45a8ff 309 /* Disable the OPAMPs */
bogdanm 0:9b334a45a8ff 310 CLEAR_BIT (hopamp1->Instance->CSR, OPAMP_CSR_OPAMPxEN);
bogdanm 0:9b334a45a8ff 311 CLEAR_BIT (hopamp2->Instance->CSR, OPAMP_CSR_OPAMPxEN);
bogdanm 0:9b334a45a8ff 312
bogdanm 0:9b334a45a8ff 313 /* Disable calibration & set normal mode (operating mode) */
bogdanm 0:9b334a45a8ff 314 CLEAR_BIT (hopamp1->Instance->CSR, OPAMP_CSR_CALON);
bogdanm 0:9b334a45a8ff 315 CLEAR_BIT (hopamp2->Instance->CSR, OPAMP_CSR_CALON);
bogdanm 0:9b334a45a8ff 316
bogdanm 0:9b334a45a8ff 317 /* Self calibration is successful */
bogdanm 0:9b334a45a8ff 318 /* Store calibration (user trimming) results in init structure. */
bogdanm 0:9b334a45a8ff 319
bogdanm 0:9b334a45a8ff 320 /* Set user trimming mode */
bogdanm 0:9b334a45a8ff 321 hopamp1->Init.UserTrimming = OPAMP_TRIMMING_USER;
bogdanm 0:9b334a45a8ff 322 hopamp2->Init.UserTrimming = OPAMP_TRIMMING_USER;
bogdanm 0:9b334a45a8ff 323
bogdanm 0:9b334a45a8ff 324 /* Affect calibration parameters depending on mode normal/low power */
bogdanm 0:9b334a45a8ff 325 if (hopamp1->Init.PowerMode != OPAMP_POWERMODE_LOWPOWER)
bogdanm 0:9b334a45a8ff 326 {
bogdanm 0:9b334a45a8ff 327 /* Write calibration result N */
bogdanm 0:9b334a45a8ff 328 hopamp1->Init.TrimmingValueN = trimmingvaluen1;
bogdanm 0:9b334a45a8ff 329 /* Write calibration result P */
bogdanm 0:9b334a45a8ff 330 hopamp1->Init.TrimmingValueP = trimmingvaluep1;
bogdanm 0:9b334a45a8ff 331 }
bogdanm 0:9b334a45a8ff 332 else
bogdanm 0:9b334a45a8ff 333 {
bogdanm 0:9b334a45a8ff 334 /* Write calibration result N */
bogdanm 0:9b334a45a8ff 335 hopamp1->Init.TrimmingValueNLowPower = trimmingvaluen1;
bogdanm 0:9b334a45a8ff 336 /* Write calibration result P */
bogdanm 0:9b334a45a8ff 337 hopamp1->Init.TrimmingValuePLowPower = trimmingvaluep1;
bogdanm 0:9b334a45a8ff 338 }
bogdanm 0:9b334a45a8ff 339
bogdanm 0:9b334a45a8ff 340 if (hopamp2->Init.PowerMode != OPAMP_POWERMODE_LOWPOWER)
bogdanm 0:9b334a45a8ff 341 {
bogdanm 0:9b334a45a8ff 342 /* Write calibration result N */
bogdanm 0:9b334a45a8ff 343 hopamp2->Init.TrimmingValueN = trimmingvaluen2;
bogdanm 0:9b334a45a8ff 344 /* Write calibration result P */
bogdanm 0:9b334a45a8ff 345 hopamp2->Init.TrimmingValueP = trimmingvaluep2;
bogdanm 0:9b334a45a8ff 346 }
bogdanm 0:9b334a45a8ff 347 else
bogdanm 0:9b334a45a8ff 348 {
bogdanm 0:9b334a45a8ff 349 /* Write calibration result N */
bogdanm 0:9b334a45a8ff 350 hopamp2->Init.TrimmingValueNLowPower = trimmingvaluen2;
bogdanm 0:9b334a45a8ff 351 /* Write calibration result P */
bogdanm 0:9b334a45a8ff 352 hopamp2->Init.TrimmingValuePLowPower = trimmingvaluep2;
bogdanm 0:9b334a45a8ff 353 }
bogdanm 0:9b334a45a8ff 354
bogdanm 0:9b334a45a8ff 355 /* Update OPAMP state */
bogdanm 0:9b334a45a8ff 356 hopamp1->State = HAL_OPAMP_STATE_READY;
bogdanm 0:9b334a45a8ff 357 hopamp2->State = HAL_OPAMP_STATE_READY;
bogdanm 0:9b334a45a8ff 358
bogdanm 0:9b334a45a8ff 359 }
bogdanm 0:9b334a45a8ff 360
bogdanm 0:9b334a45a8ff 361 else
bogdanm 0:9b334a45a8ff 362 {
bogdanm 0:9b334a45a8ff 363 /* At least one OPAMP can not be calibrated */
bogdanm 0:9b334a45a8ff 364 status = HAL_ERROR;
bogdanm 0:9b334a45a8ff 365 }
bogdanm 0:9b334a45a8ff 366 }
bogdanm 0:9b334a45a8ff 367 return status;
bogdanm 0:9b334a45a8ff 368 }
bogdanm 0:9b334a45a8ff 369
bogdanm 0:9b334a45a8ff 370 /**
bogdanm 0:9b334a45a8ff 371 * @}
bogdanm 0:9b334a45a8ff 372 */
bogdanm 0:9b334a45a8ff 373
bogdanm 0:9b334a45a8ff 374 /** @defgroup OPAMPEx_Exported_Functions_Group2 Peripheral Control functions
bogdanm 0:9b334a45a8ff 375 * @brief Peripheral Control functions
bogdanm 0:9b334a45a8ff 376 *
bogdanm 0:9b334a45a8ff 377 @verbatim
bogdanm 0:9b334a45a8ff 378 ===============================================================================
bogdanm 0:9b334a45a8ff 379 ##### Peripheral Control functions #####
bogdanm 0:9b334a45a8ff 380 ===============================================================================
bogdanm 0:9b334a45a8ff 381 [..]
bogdanm 0:9b334a45a8ff 382 (+) OPAMP unlock.
bogdanm 0:9b334a45a8ff 383
bogdanm 0:9b334a45a8ff 384 @endverbatim
bogdanm 0:9b334a45a8ff 385 * @{
bogdanm 0:9b334a45a8ff 386 */
bogdanm 0:9b334a45a8ff 387
bogdanm 0:9b334a45a8ff 388 /**
bogdanm 0:9b334a45a8ff 389 * @brief Unlock the selected OPAMP configuration.
bogdanm 0:9b334a45a8ff 390 * @note This function must be called only when OPAMP is in state "locked".
bogdanm 0:9b334a45a8ff 391 * @param hopamp: OPAMP handle
bogdanm 0:9b334a45a8ff 392 * @retval HAL status
bogdanm 0:9b334a45a8ff 393 */
bogdanm 0:9b334a45a8ff 394 HAL_StatusTypeDef HAL_OPAMPEx_Unlock(OPAMP_HandleTypeDef* hopamp)
bogdanm 0:9b334a45a8ff 395 {
bogdanm 0:9b334a45a8ff 396 HAL_StatusTypeDef status = HAL_OK;
bogdanm 0:9b334a45a8ff 397
bogdanm 0:9b334a45a8ff 398 /* Check the OPAMP handle allocation */
bogdanm 0:9b334a45a8ff 399 /* Check if OPAMP locked */
bogdanm 0:9b334a45a8ff 400 if((hopamp == NULL) || (hopamp->State == HAL_OPAMP_STATE_RESET)
bogdanm 0:9b334a45a8ff 401 || (hopamp->State == HAL_OPAMP_STATE_READY)
bogdanm 0:9b334a45a8ff 402 || (hopamp->State == HAL_OPAMP_STATE_CALIBBUSY)
bogdanm 0:9b334a45a8ff 403 || (hopamp->State == HAL_OPAMP_STATE_BUSY))
bogdanm 0:9b334a45a8ff 404
bogdanm 0:9b334a45a8ff 405 {
bogdanm 0:9b334a45a8ff 406 status = HAL_ERROR;
bogdanm 0:9b334a45a8ff 407 }
bogdanm 0:9b334a45a8ff 408 else
bogdanm 0:9b334a45a8ff 409 {
bogdanm 0:9b334a45a8ff 410 /* Check the parameter */
bogdanm 0:9b334a45a8ff 411 assert_param(IS_OPAMP_ALL_INSTANCE(hopamp->Instance));
bogdanm 0:9b334a45a8ff 412
bogdanm 0:9b334a45a8ff 413 /* OPAMP state changed to locked */
bogdanm 0:9b334a45a8ff 414 hopamp->State = HAL_OPAMP_STATE_BUSY;
bogdanm 0:9b334a45a8ff 415 }
bogdanm 0:9b334a45a8ff 416 return status;
bogdanm 0:9b334a45a8ff 417 }
bogdanm 0:9b334a45a8ff 418
bogdanm 0:9b334a45a8ff 419 /**
bogdanm 0:9b334a45a8ff 420 * @}
bogdanm 0:9b334a45a8ff 421 */
bogdanm 0:9b334a45a8ff 422
bogdanm 0:9b334a45a8ff 423 /**
bogdanm 0:9b334a45a8ff 424 * @}
bogdanm 0:9b334a45a8ff 425 */
bogdanm 0:9b334a45a8ff 426
bogdanm 0:9b334a45a8ff 427 #endif /* HAL_OPAMP_MODULE_ENABLED */
bogdanm 0:9b334a45a8ff 428 /**
bogdanm 0:9b334a45a8ff 429 * @}
bogdanm 0:9b334a45a8ff 430 */
bogdanm 0:9b334a45a8ff 431
bogdanm 0:9b334a45a8ff 432 /**
bogdanm 0:9b334a45a8ff 433 * @}
bogdanm 0:9b334a45a8ff 434 */
bogdanm 0:9b334a45a8ff 435
bogdanm 0:9b334a45a8ff 436 /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/