annotate Common/Drivers/STM32F4xx_HAL_Driver/Inc/stm32f4xx_ll_rng.h @ 194:f23b9055436f div-fixes-cleanup-1

cleanup: more trivial cleanup (logbook.c/h) Kick out unused code, commented code. Corrected some comments, and most relevant: make things static where we can. Signed-off-by: Jan Mulder <jlmulder@xs4all.nl>
author Jan Mulder <jlmulder@xs4all.nl>
date Tue, 19 Mar 2019 11:42:00 +0100
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1 /**
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2 ******************************************************************************
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3 * @file stm32f4xx_ll_rng.h
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4 * @author MCD Application Team
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5 * @brief Header file of RNG LL module.
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6 ******************************************************************************
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7 * @attention
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8 *
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9 * <h2><center>&copy; COPYRIGHT(c) 2017 STMicroelectronics</center></h2>
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10 *
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11 * Redistribution and use in source and binary forms, with or without modification,
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12 * are permitted provided that the following conditions are met:
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13 * 1. Redistributions of source code must retain the above copyright notice,
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14 * this list of conditions and the following disclaimer.
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15 * 2. Redistributions in binary form must reproduce the above copyright notice,
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16 * this list of conditions and the following disclaimer in the documentation
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17 * and/or other materials provided with the distribution.
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18 * 3. Neither the name of STMicroelectronics nor the names of its contributors
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19 * may be used to endorse or promote products derived from this software
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20 * without specific prior written permission.
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21 *
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22 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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23 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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24 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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25 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
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26 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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27 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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28 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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29 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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30 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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31 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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32 *
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33 ******************************************************************************
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34 */
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35
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36 /* Define to prevent recursive inclusion -------------------------------------*/
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37 #ifndef __STM32F4xx_LL_RNG_H
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38 #define __STM32F4xx_LL_RNG_H
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39
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40 #ifdef __cplusplus
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41 extern "C" {
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42 #endif
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43
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44 /* Includes ------------------------------------------------------------------*/
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45 #include "stm32f4xx.h"
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46
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47 /** @addtogroup STM32F4xx_LL_Driver
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48 * @{
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49 */
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50
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51 #if defined(RNG)
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52
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53 /** @defgroup RNG_LL RNG
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54 * @{
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55 */
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56
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57 /* Private types -------------------------------------------------------------*/
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58 /* Private variables ---------------------------------------------------------*/
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59 /* Private constants ---------------------------------------------------------*/
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60 /* Private macros ------------------------------------------------------------*/
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61
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62 /* Exported types ------------------------------------------------------------*/
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63 /* Exported constants --------------------------------------------------------*/
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64 /** @defgroup RNG_LL_Exported_Constants RNG Exported Constants
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65 * @{
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66 */
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67
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68 /** @defgroup RNG_LL_EC_GET_FLAG Get Flags Defines
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69 * @brief Flags defines which can be used with LL_RNG_ReadReg function
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70 * @{
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71 */
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72 #define LL_RNG_SR_DRDY RNG_SR_DRDY /*!< Register contains valid random data */
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73 #define LL_RNG_SR_CECS RNG_SR_CECS /*!< Clock error current status */
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74 #define LL_RNG_SR_SECS RNG_SR_SECS /*!< Seed error current status */
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75 #define LL_RNG_SR_CEIS RNG_SR_CEIS /*!< Clock error interrupt status */
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76 #define LL_RNG_SR_SEIS RNG_SR_SEIS /*!< Seed error interrupt status */
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77 /**
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78 * @}
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79 */
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80
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81 /** @defgroup RNG_LL_EC_IT IT Defines
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82 * @brief IT defines which can be used with LL_RNG_ReadReg and LL_RNG_WriteReg macros
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83 * @{
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84 */
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85 #define LL_RNG_CR_IE RNG_CR_IE /*!< RNG Interrupt enable */
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86 /**
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87 * @}
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88 */
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89
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90 /**
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91 * @}
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92 */
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93
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94 /* Exported macro ------------------------------------------------------------*/
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95 /** @defgroup RNG_LL_Exported_Macros RNG Exported Macros
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96 * @{
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97 */
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98
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99 /** @defgroup RNG_LL_EM_WRITE_READ Common Write and read registers Macros
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100 * @{
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101 */
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102
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103 /**
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104 * @brief Write a value in RNG register
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105 * @param __INSTANCE__ RNG Instance
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106 * @param __REG__ Register to be written
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107 * @param __VALUE__ Value to be written in the register
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108 * @retval None
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109 */
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110 #define LL_RNG_WriteReg(__INSTANCE__, __REG__, __VALUE__) WRITE_REG(__INSTANCE__->__REG__, (__VALUE__))
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111
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112 /**
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113 * @brief Read a value in RNG register
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114 * @param __INSTANCE__ RNG Instance
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115 * @param __REG__ Register to be read
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116 * @retval Register value
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117 */
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118 #define LL_RNG_ReadReg(__INSTANCE__, __REG__) READ_REG(__INSTANCE__->__REG__)
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119 /**
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120 * @}
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121 */
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122
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123 /**
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124 * @}
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125 */
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126
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127
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128 /* Exported functions --------------------------------------------------------*/
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129 /** @defgroup RNG_LL_Exported_Functions RNG Exported Functions
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130 * @{
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131 */
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132 /** @defgroup RNG_LL_EF_Configuration RNG Configuration functions
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133 * @{
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134 */
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135
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136 /**
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137 * @brief Enable Random Number Generation
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138 * @rmtoll CR RNGEN LL_RNG_Enable
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139 * @param RNGx RNG Instance
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140 * @retval None
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141 */
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142 __STATIC_INLINE void LL_RNG_Enable(RNG_TypeDef *RNGx)
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143 {
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144 SET_BIT(RNGx->CR, RNG_CR_RNGEN);
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145 }
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146
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147 /**
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148 * @brief Disable Random Number Generation
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149 * @rmtoll CR RNGEN LL_RNG_Disable
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150 * @param RNGx RNG Instance
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151 * @retval None
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152 */
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153 __STATIC_INLINE void LL_RNG_Disable(RNG_TypeDef *RNGx)
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154 {
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155 CLEAR_BIT(RNGx->CR, RNG_CR_RNGEN);
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156 }
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157
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158 /**
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159 * @brief Check if Random Number Generator is enabled
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160 * @rmtoll CR RNGEN LL_RNG_IsEnabled
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161 * @param RNGx RNG Instance
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162 * @retval State of bit (1 or 0).
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163 */
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164 __STATIC_INLINE uint32_t LL_RNG_IsEnabled(RNG_TypeDef *RNGx)
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165 {
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166 return (READ_BIT(RNGx->CR, RNG_CR_RNGEN) == (RNG_CR_RNGEN));
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167 }
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168
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169 /**
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170 * @}
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171 */
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172
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173 /** @defgroup RNG_LL_EF_FLAG_Management FLAG Management
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174 * @{
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175 */
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176
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177 /**
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178 * @brief Indicate if the RNG Data ready Flag is set or not
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179 * @rmtoll SR DRDY LL_RNG_IsActiveFlag_DRDY
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180 * @param RNGx RNG Instance
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181 * @retval State of bit (1 or 0).
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182 */
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183 __STATIC_INLINE uint32_t LL_RNG_IsActiveFlag_DRDY(RNG_TypeDef *RNGx)
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184 {
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185 return (READ_BIT(RNGx->SR, RNG_SR_DRDY) == (RNG_SR_DRDY));
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186 }
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187
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188 /**
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189 * @brief Indicate if the Clock Error Current Status Flag is set or not
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190 * @rmtoll SR CECS LL_RNG_IsActiveFlag_CECS
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191 * @param RNGx RNG Instance
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192 * @retval State of bit (1 or 0).
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193 */
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194 __STATIC_INLINE uint32_t LL_RNG_IsActiveFlag_CECS(RNG_TypeDef *RNGx)
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195 {
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196 return (READ_BIT(RNGx->SR, RNG_SR_CECS) == (RNG_SR_CECS));
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197 }
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198
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199 /**
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200 * @brief Indicate if the Seed Error Current Status Flag is set or not
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201 * @rmtoll SR SECS LL_RNG_IsActiveFlag_SECS
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202 * @param RNGx RNG Instance
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203 * @retval State of bit (1 or 0).
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204 */
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205 __STATIC_INLINE uint32_t LL_RNG_IsActiveFlag_SECS(RNG_TypeDef *RNGx)
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206 {
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207 return (READ_BIT(RNGx->SR, RNG_SR_SECS) == (RNG_SR_SECS));
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208 }
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209
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210 /**
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211 * @brief Indicate if the Clock Error Interrupt Status Flag is set or not
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212 * @rmtoll SR CEIS LL_RNG_IsActiveFlag_CEIS
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213 * @param RNGx RNG Instance
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214 * @retval State of bit (1 or 0).
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215 */
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216 __STATIC_INLINE uint32_t LL_RNG_IsActiveFlag_CEIS(RNG_TypeDef *RNGx)
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217 {
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218 return (READ_BIT(RNGx->SR, RNG_SR_CEIS) == (RNG_SR_CEIS));
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219 }
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220
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221 /**
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222 * @brief Indicate if the Seed Error Interrupt Status Flag is set or not
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223 * @rmtoll SR SEIS LL_RNG_IsActiveFlag_SEIS
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224 * @param RNGx RNG Instance
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225 * @retval State of bit (1 or 0).
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226 */
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227 __STATIC_INLINE uint32_t LL_RNG_IsActiveFlag_SEIS(RNG_TypeDef *RNGx)
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228 {
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229 return (READ_BIT(RNGx->SR, RNG_SR_SEIS) == (RNG_SR_SEIS));
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230 }
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231
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232 /**
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233 * @brief Clear Clock Error interrupt Status (CEIS) Flag
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234 * @rmtoll SR CEIS LL_RNG_ClearFlag_CEIS
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235 * @param RNGx RNG Instance
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236 * @retval None
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237 */
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238 __STATIC_INLINE void LL_RNG_ClearFlag_CEIS(RNG_TypeDef *RNGx)
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239 {
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240 WRITE_REG(RNGx->SR, ~RNG_SR_CEIS);
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241 }
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242
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243 /**
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244 * @brief Clear Seed Error interrupt Status (SEIS) Flag
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245 * @rmtoll SR SEIS LL_RNG_ClearFlag_SEIS
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246 * @param RNGx RNG Instance
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247 * @retval None
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248 */
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249 __STATIC_INLINE void LL_RNG_ClearFlag_SEIS(RNG_TypeDef *RNGx)
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250 {
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251 WRITE_REG(RNGx->SR, ~RNG_SR_SEIS);
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252 }
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253
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254 /**
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255 * @}
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256 */
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257
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258 /** @defgroup RNG_LL_EF_IT_Management IT Management
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259 * @{
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260 */
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261
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262 /**
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263 * @brief Enable Random Number Generator Interrupt
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264 * (applies for either Seed error, Clock Error or Data ready interrupts)
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265 * @rmtoll CR IE LL_RNG_EnableIT
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266 * @param RNGx RNG Instance
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267 * @retval None
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268 */
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269 __STATIC_INLINE void LL_RNG_EnableIT(RNG_TypeDef *RNGx)
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270 {
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271 SET_BIT(RNGx->CR, RNG_CR_IE);
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272 }
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273
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274 /**
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275 * @brief Disable Random Number Generator Interrupt
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276 * (applies for either Seed error, Clock Error or Data ready interrupts)
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277 * @rmtoll CR IE LL_RNG_DisableIT
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278 * @param RNGx RNG Instance
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279 * @retval None
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280 */
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281 __STATIC_INLINE void LL_RNG_DisableIT(RNG_TypeDef *RNGx)
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282 {
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283 CLEAR_BIT(RNGx->CR, RNG_CR_IE);
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284 }
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285
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286 /**
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287 * @brief Check if Random Number Generator Interrupt is enabled
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288 * (applies for either Seed error, Clock Error or Data ready interrupts)
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289 * @rmtoll CR IE LL_RNG_IsEnabledIT
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290 * @param RNGx RNG Instance
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291 * @retval State of bit (1 or 0).
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292 */
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293 __STATIC_INLINE uint32_t LL_RNG_IsEnabledIT(RNG_TypeDef *RNGx)
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294 {
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295 return (READ_BIT(RNGx->CR, RNG_CR_IE) == (RNG_CR_IE));
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296 }
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297
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298 /**
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299 * @}
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300 */
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301
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302 /** @defgroup RNG_LL_EF_Data_Management Data Management
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303 * @{
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304 */
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305
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306 /**
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307 * @brief Return32-bit Random Number value
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308 * @rmtoll DR RNDATA LL_RNG_ReadRandData32
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309 * @param RNGx RNG Instance
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310 * @retval Generated 32-bit random value
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311 */
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312 __STATIC_INLINE uint32_t LL_RNG_ReadRandData32(RNG_TypeDef *RNGx)
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313 {
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314 return (uint32_t)(READ_REG(RNGx->DR));
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315 }
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316
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317 /**
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318 * @}
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319 */
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320
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321 #if defined(USE_FULL_LL_DRIVER)
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322 /** @defgroup RNG_LL_EF_Init Initialization and de-initialization functions
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323 * @{
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324 */
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325
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326 ErrorStatus LL_RNG_DeInit(RNG_TypeDef *RNGx);
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327
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328 /**
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329 * @}
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330 */
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331 #endif /* USE_FULL_LL_DRIVER */
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332
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333 /**
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334 * @}
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335 */
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336
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337 /**
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338 * @}
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339 */
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340
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341 #endif /* defined(RNG) */
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342
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343 /**
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344 * @}
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345 */
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346
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347 #ifdef __cplusplus
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348 }
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349 #endif
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350
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351 #endif /* __STM32F4xx_LL_RNG_H */
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352
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353 /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/