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annotate Common/Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_fmpi2c_ex.c @ 704:f1b40364b0af

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Added protocol functions for UART DiveO2 sensor: The code has been modified to support the handling of several protocols (including baud rate changes). The data is requested by polling and passed via DMA into a ringbuffer which is then parsed by a cyclic function call in the main loop. At the moment only the O2 values are forwarded but because the sensor send several types of data within a signle message already more is extracted but yet discarded.
author Ideenmodellierer
date Fri, 28 Oct 2022 20:49:21 +0200
parents c78bcbd5deda
children
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1 /**
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2 ******************************************************************************
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3 * @file stm32f4xx_hal_fmpi2c_ex.c
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4 * @author MCD Application Team
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5 * @brief FMPI2C Extended HAL module driver.
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6 * This file provides firmware functions to manage the following
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7 * functionalities of FMPI2C Extended peripheral:
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8 * + Extended features functions
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9 *
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10 @verbatim
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11 ==============================================================================
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12 ##### FMPI2C peripheral Extended features #####
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13 ==============================================================================
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14
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15 [..] Comparing to other previous devices, the FMPI2C interface for STM32F4xx
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16 devices contains the following additional features
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17
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18 (+) Possibility to disable or enable Analog Noise Filter
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19 (+) Use of a configured Digital Noise Filter
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20 (+) Disable or enable Fast Mode Plus
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21
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22 ##### How to use this driver #####
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23 ==============================================================================
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24 [..] This driver provides functions to configure Noise Filter and Wake Up Feature
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25 (#) Configure FMPI2C Analog noise filter using the function HAL_FMPI2CEx_ConfigAnalogFilter()
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26 (#) Configure FMPI2C Digital noise filter using the function HAL_FMPI2CEx_ConfigDigitalFilter()
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27 (#) Configure the enable or disable of fast mode plus driving capability using the functions :
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28 (++) HAL_FMPI2CEx_EnableFastModePlus()
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29 (++) HAL_FMPI2CEx_DisableFastModePlus()
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30 @endverbatim
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31 ******************************************************************************
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32 * @attention
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33 *
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34 * <h2><center>&copy; COPYRIGHT(c) 2017 STMicroelectronics</center></h2>
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35 *
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36 * Redistribution and use in source and binary forms, with or without modification,
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37 * are permitted provided that the following conditions are met:
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38 * 1. Redistributions of source code must retain the above copyright notice,
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39 * this list of conditions and the following disclaimer.
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40 * 2. Redistributions in binary form must reproduce the above copyright notice,
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41 * this list of conditions and the following disclaimer in the documentation
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42 * and/or other materials provided with the distribution.
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43 * 3. Neither the name of STMicroelectronics nor the names of its contributors
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44 * may be used to endorse or promote products derived from this software
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45 * without specific prior written permission.
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46 *
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47 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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48 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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49 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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50 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
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51 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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52 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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53 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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54 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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55 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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56 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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57 *
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58 ******************************************************************************
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59 */
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60
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61 /* Includes ------------------------------------------------------------------*/
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62 #include "stm32f4xx_hal.h"
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63
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64 /** @addtogroup STM32F4xx_HAL_Driver
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65 * @{
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66 */
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67
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68 /** @defgroup FMPI2CEx FMPI2CEx
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69 * @brief FMPI2C Extended HAL module driver
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70 * @{
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71 */
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72
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73 #ifdef HAL_FMPI2C_MODULE_ENABLED
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74
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75 #if defined(STM32F410Tx) || defined(STM32F410Cx) || defined(STM32F410Rx) || defined(STM32F446xx) || defined(STM32F412Zx) || defined(STM32F412Vx) || \
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76 defined(STM32F412Rx) || defined(STM32F412Cx) || defined(STM32F413xx) || defined(STM32F423xx)
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77
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78 /* Private typedef -----------------------------------------------------------*/
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79 /* Private define ------------------------------------------------------------*/
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80 /* Private macro -------------------------------------------------------------*/
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81 /* Private variables ---------------------------------------------------------*/
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82 /* Private function prototypes -----------------------------------------------*/
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83 /* Private functions ---------------------------------------------------------*/
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84
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85 /** @defgroup FMPI2CEx_Exported_Functions FMPI2C Extended Exported Functions
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86 * @{
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87 */
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88
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89 /** @defgroup FMPI2CEx_Exported_Functions_Group1 Extended features functions
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90 * @brief Extended features functions
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91 *
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92 @verbatim
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93 ===============================================================================
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94 ##### Extended features functions #####
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95 ===============================================================================
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96 [..] This section provides functions allowing to:
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97 (+) Configure Noise Filters
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98 (+) Configure Fast Mode Plus
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99
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100 @endverbatim
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101 * @{
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102 */
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103
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104 /**
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105 * @brief Configure FMPI2C Analog noise filter.
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106 * @param hfmpi2c Pointer to a FMPI2C_HandleTypeDef structure that contains
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107 * the configuration information for the specified FMPI2Cx peripheral.
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108 * @param AnalogFilter New state of the Analog filter.
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109 * @retval HAL status
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110 */
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111 HAL_StatusTypeDef HAL_FMPI2CEx_ConfigAnalogFilter(FMPI2C_HandleTypeDef *hfmpi2c, uint32_t AnalogFilter)
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112 {
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113 /* Check the parameters */
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114 assert_param(IS_FMPI2C_ALL_INSTANCE(hfmpi2c->Instance));
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115 assert_param(IS_FMPI2C_ANALOG_FILTER(AnalogFilter));
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116
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117 if (hfmpi2c->State == HAL_FMPI2C_STATE_READY)
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118 {
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119 /* Process Locked */
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120 __HAL_LOCK(hfmpi2c);
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121
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122 hfmpi2c->State = HAL_FMPI2C_STATE_BUSY;
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123
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124 /* Disable the selected FMPI2C peripheral */
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125 __HAL_FMPI2C_DISABLE(hfmpi2c);
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126
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127 /* Reset FMPI2Cx ANOFF bit */
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128 hfmpi2c->Instance->CR1 &= ~(FMPI2C_CR1_ANFOFF);
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129
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130 /* Set analog filter bit*/
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131 hfmpi2c->Instance->CR1 |= AnalogFilter;
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132
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133 __HAL_FMPI2C_ENABLE(hfmpi2c);
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134
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135 hfmpi2c->State = HAL_FMPI2C_STATE_READY;
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136
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137 /* Process Unlocked */
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138 __HAL_UNLOCK(hfmpi2c);
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139
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140 return HAL_OK;
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141 }
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142 else
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143 {
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144 return HAL_BUSY;
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145 }
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146 }
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147
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148 /**
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149 * @brief Configure FMPI2C Digital noise filter.
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150 * @param hfmpi2c Pointer to a FMPI2C_HandleTypeDef structure that contains
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151 * the configuration information for the specified FMPI2Cx peripheral.
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152 * @param DigitalFilter Coefficient of digital noise filter between Min_Data=0x00 and Max_Data=0x0F.
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153 * @retval HAL status
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154 */
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155 HAL_StatusTypeDef HAL_FMPI2CEx_ConfigDigitalFilter(FMPI2C_HandleTypeDef *hfmpi2c, uint32_t DigitalFilter)
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156 {
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157 uint32_t tmpreg = 0U;
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158
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159 /* Check the parameters */
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160 assert_param(IS_FMPI2C_ALL_INSTANCE(hfmpi2c->Instance));
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161 assert_param(IS_FMPI2C_DIGITAL_FILTER(DigitalFilter));
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162
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163 if (hfmpi2c->State == HAL_FMPI2C_STATE_READY)
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164 {
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165 /* Process Locked */
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166 __HAL_LOCK(hfmpi2c);
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167
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168 hfmpi2c->State = HAL_FMPI2C_STATE_BUSY;
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169
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170 /* Disable the selected FMPI2C peripheral */
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171 __HAL_FMPI2C_DISABLE(hfmpi2c);
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172
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173 /* Get the old register value */
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174 tmpreg = hfmpi2c->Instance->CR1;
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175
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176 /* Reset FMPI2Cx DNF bits [11:8] */
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177 tmpreg &= ~(FMPI2C_CR1_DFN);
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178
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179 /* Set FMPI2Cx DNF coefficient */
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180 tmpreg |= DigitalFilter << 8U;
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181
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182 /* Store the new register value */
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183 hfmpi2c->Instance->CR1 = tmpreg;
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184
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185 __HAL_FMPI2C_ENABLE(hfmpi2c);
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186
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187 hfmpi2c->State = HAL_FMPI2C_STATE_READY;
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188
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189 /* Process Unlocked */
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190 __HAL_UNLOCK(hfmpi2c);
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191
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192 return HAL_OK;
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193 }
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194 else
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195 {
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196 return HAL_BUSY;
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197 }
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198 }
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199
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200 /**
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201 * @brief Enable the FMPI2C fast mode plus driving capability.
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202 * @param ConfigFastModePlus Selects the pin.
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203 * This parameter can be one of the @ref FMPI2CEx_FastModePlus values
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204 * @retval None
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205 */
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206 void HAL_FMPI2CEx_EnableFastModePlus(uint32_t ConfigFastModePlus)
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207 {
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208 /* Check the parameter */
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209 assert_param(IS_FMPI2C_FASTMODEPLUS(ConfigFastModePlus));
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210
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211 /* Enable SYSCFG clock */
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212 __HAL_RCC_SYSCFG_CLK_ENABLE();
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213
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214 /* Enable fast mode plus driving capability for selected pin */
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215 SET_BIT(SYSCFG->CFGR, (uint32_t)ConfigFastModePlus);
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216 }
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217
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218 /**
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219 * @brief Disable the FMPI2C fast mode plus driving capability.
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220 * @param ConfigFastModePlus Selects the pin.
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221 * This parameter can be one of the @ref FMPI2CEx_FastModePlus values
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222 * @retval None
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223 */
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224 void HAL_FMPI2CEx_DisableFastModePlus(uint32_t ConfigFastModePlus)
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225 {
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226 /* Check the parameter */
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227 assert_param(IS_FMPI2C_FASTMODEPLUS(ConfigFastModePlus));
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228
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229 /* Enable SYSCFG clock */
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230 __HAL_RCC_SYSCFG_CLK_ENABLE();
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231
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232 /* Disable fast mode plus driving capability for selected pin */
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233 CLEAR_BIT(SYSCFG->CFGR, (uint32_t)ConfigFastModePlus);
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234 }
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235
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236 /**
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237 * @}
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238 */
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239
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240 /**
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241 * @}
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242 */
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243 #endif /* STM32F410xx || STM32F446xx || STM32F412Zx || STM32F412Vx || STM32F412Rx || STM32F412Cx ||\
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244 STM32F413xx || STM32F423xx */
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245 #endif /* HAL_FMPI2C_MODULE_ENABLED */
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246 /**
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247 * @}
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248 */
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249
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250 /**
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251 * @}
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252 */
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253
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254 /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/