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TARGET_NUCLEO_H743ZI/TOOLCHAIN_ARM_MICRO/stm32h7xx_ll_crc.h@172:65be27845400, 2019-02-20 (annotated)

Committer:
AnnaBridge
Date:
Wed Feb 20 20:53:29 2019 +0000
Revision:
172:65be27845400
mbed library release version 165

Who changed what in which revision?

UserRevisionLine numberNew contents of line
AnnaBridge 172:65be27845400 1 /**
AnnaBridge 172:65be27845400 2 ******************************************************************************
AnnaBridge 172:65be27845400 3 * @file stm32h7xx_ll_crc.h
AnnaBridge 172:65be27845400 4 * @author MCD Application Team
AnnaBridge 172:65be27845400 5 * @brief Header file of CRC LL module.
AnnaBridge 172:65be27845400 6 ******************************************************************************
AnnaBridge 172:65be27845400 7 * @attention
AnnaBridge 172:65be27845400 8 *
AnnaBridge 172:65be27845400 9 * <h2><center>&copy; Copyright (c) 2017 STMicroelectronics.
AnnaBridge 172:65be27845400 10 * All rights reserved.</center></h2>
AnnaBridge 172:65be27845400 11 *
AnnaBridge 172:65be27845400 12 * This software component is licensed by ST under BSD 3-Clause license,
AnnaBridge 172:65be27845400 13 * the "License"; You may not use this file except in compliance with the
AnnaBridge 172:65be27845400 14 * License. You may obtain a copy of the License at:
AnnaBridge 172:65be27845400 15 * opensource.org/licenses/BSD-3-Clause
AnnaBridge 172:65be27845400 16 *
AnnaBridge 172:65be27845400 17 ******************************************************************************
AnnaBridge 172:65be27845400 18 */
AnnaBridge 172:65be27845400 19
AnnaBridge 172:65be27845400 20 /* Define to prevent recursive inclusion -------------------------------------*/
AnnaBridge 172:65be27845400 21 #ifndef STM32H7xx_LL_CRC_H
AnnaBridge 172:65be27845400 22 #define STM32H7xx_LL_CRC_H
AnnaBridge 172:65be27845400 23
AnnaBridge 172:65be27845400 24 #ifdef __cplusplus
AnnaBridge 172:65be27845400 25 extern "C" {
AnnaBridge 172:65be27845400 26 #endif
AnnaBridge 172:65be27845400 27
AnnaBridge 172:65be27845400 28 /* Includes ------------------------------------------------------------------*/
AnnaBridge 172:65be27845400 29 #include "stm32h7xx.h"
AnnaBridge 172:65be27845400 30
AnnaBridge 172:65be27845400 31 /** @addtogroup STM32H7xx_LL_Driver
AnnaBridge 172:65be27845400 32 * @{
AnnaBridge 172:65be27845400 33 */
AnnaBridge 172:65be27845400 34
AnnaBridge 172:65be27845400 35 #if defined(CRC)
AnnaBridge 172:65be27845400 36
AnnaBridge 172:65be27845400 37 /** @defgroup CRC_LL CRC
AnnaBridge 172:65be27845400 38 * @{
AnnaBridge 172:65be27845400 39 */
AnnaBridge 172:65be27845400 40
AnnaBridge 172:65be27845400 41 /* Private types -------------------------------------------------------------*/
AnnaBridge 172:65be27845400 42 /* Private variables ---------------------------------------------------------*/
AnnaBridge 172:65be27845400 43 /* Private constants ---------------------------------------------------------*/
AnnaBridge 172:65be27845400 44 /* Private macros ------------------------------------------------------------*/
AnnaBridge 172:65be27845400 45
AnnaBridge 172:65be27845400 46 /* Exported types ------------------------------------------------------------*/
AnnaBridge 172:65be27845400 47 /* Exported constants --------------------------------------------------------*/
AnnaBridge 172:65be27845400 48 /** @defgroup CRC_LL_Exported_Constants CRC Exported Constants
AnnaBridge 172:65be27845400 49 * @{
AnnaBridge 172:65be27845400 50 */
AnnaBridge 172:65be27845400 51
AnnaBridge 172:65be27845400 52 /** @defgroup CRC_LL_EC_POLYLENGTH Polynomial length
AnnaBridge 172:65be27845400 53 * @{
AnnaBridge 172:65be27845400 54 */
AnnaBridge 172:65be27845400 55 #define LL_CRC_POLYLENGTH_32B 0x00000000U /*!< 32 bits Polynomial size */
AnnaBridge 172:65be27845400 56 #define LL_CRC_POLYLENGTH_16B CRC_CR_POLYSIZE_0 /*!< 16 bits Polynomial size */
AnnaBridge 172:65be27845400 57 #define LL_CRC_POLYLENGTH_8B CRC_CR_POLYSIZE_1 /*!< 8 bits Polynomial size */
AnnaBridge 172:65be27845400 58 #define LL_CRC_POLYLENGTH_7B (CRC_CR_POLYSIZE_1 | CRC_CR_POLYSIZE_0) /*!< 7 bits Polynomial size */
AnnaBridge 172:65be27845400 59 /**
AnnaBridge 172:65be27845400 60 * @}
AnnaBridge 172:65be27845400 61 */
AnnaBridge 172:65be27845400 62
AnnaBridge 172:65be27845400 63 /** @defgroup CRC_LL_EC_INDATA_REVERSE Input Data Reverse
AnnaBridge 172:65be27845400 64 * @{
AnnaBridge 172:65be27845400 65 */
AnnaBridge 172:65be27845400 66 #define LL_CRC_INDATA_REVERSE_NONE 0x00000000U /*!< Input Data bit order not affected */
AnnaBridge 172:65be27845400 67 #define LL_CRC_INDATA_REVERSE_BYTE CRC_CR_REV_IN_0 /*!< Input Data bit reversal done by byte */
AnnaBridge 172:65be27845400 68 #define LL_CRC_INDATA_REVERSE_HALFWORD CRC_CR_REV_IN_1 /*!< Input Data bit reversal done by half-word */
AnnaBridge 172:65be27845400 69 #define LL_CRC_INDATA_REVERSE_WORD (CRC_CR_REV_IN_1 | CRC_CR_REV_IN_0) /*!< Input Data bit reversal done by word */
AnnaBridge 172:65be27845400 70 /**
AnnaBridge 172:65be27845400 71 * @}
AnnaBridge 172:65be27845400 72 */
AnnaBridge 172:65be27845400 73
AnnaBridge 172:65be27845400 74 /** @defgroup CRC_LL_EC_OUTDATA_REVERSE Output Data Reverse
AnnaBridge 172:65be27845400 75 * @{
AnnaBridge 172:65be27845400 76 */
AnnaBridge 172:65be27845400 77 #define LL_CRC_OUTDATA_REVERSE_NONE 0x00000000U /*!< Output Data bit order not affected */
AnnaBridge 172:65be27845400 78 #define LL_CRC_OUTDATA_REVERSE_BIT CRC_CR_REV_OUT /*!< Output Data bit reversal done by bit */
AnnaBridge 172:65be27845400 79 /**
AnnaBridge 172:65be27845400 80 * @}
AnnaBridge 172:65be27845400 81 */
AnnaBridge 172:65be27845400 82
AnnaBridge 172:65be27845400 83 /** @defgroup CRC_LL_EC_Default_Polynomial_Value Default CRC generating polynomial value
AnnaBridge 172:65be27845400 84 * @brief Normal representation of this polynomial value is
AnnaBridge 172:65be27845400 85 * X^32 + X^26 + X^23 + X^22 + X^16 + X^12 + X^11 + X^10 +X^8 + X^7 + X^5 + X^4 + X^2 + X + 1 .
AnnaBridge 172:65be27845400 86 * @{
AnnaBridge 172:65be27845400 87 */
AnnaBridge 172:65be27845400 88 #define LL_CRC_DEFAULT_CRC32_POLY 0x04C11DB7U /*!< Default CRC generating polynomial value */
AnnaBridge 172:65be27845400 89 /**
AnnaBridge 172:65be27845400 90 * @}
AnnaBridge 172:65be27845400 91 */
AnnaBridge 172:65be27845400 92
AnnaBridge 172:65be27845400 93 /** @defgroup CRC_LL_EC_Default_InitValue Default CRC computation initialization value
AnnaBridge 172:65be27845400 94 * @{
AnnaBridge 172:65be27845400 95 */
AnnaBridge 172:65be27845400 96 #define LL_CRC_DEFAULT_CRC_INITVALUE 0xFFFFFFFFU /*!< Default CRC computation initialization value */
AnnaBridge 172:65be27845400 97 /**
AnnaBridge 172:65be27845400 98 * @}
AnnaBridge 172:65be27845400 99 */
AnnaBridge 172:65be27845400 100
AnnaBridge 172:65be27845400 101 /**
AnnaBridge 172:65be27845400 102 * @}
AnnaBridge 172:65be27845400 103 */
AnnaBridge 172:65be27845400 104
AnnaBridge 172:65be27845400 105 /* Exported macro ------------------------------------------------------------*/
AnnaBridge 172:65be27845400 106 /** @defgroup CRC_LL_Exported_Macros CRC Exported Macros
AnnaBridge 172:65be27845400 107 * @{
AnnaBridge 172:65be27845400 108 */
AnnaBridge 172:65be27845400 109
AnnaBridge 172:65be27845400 110 /** @defgroup CRC_LL_EM_WRITE_READ Common Write and read registers Macros
AnnaBridge 172:65be27845400 111 * @{
AnnaBridge 172:65be27845400 112 */
AnnaBridge 172:65be27845400 113
AnnaBridge 172:65be27845400 114 /**
AnnaBridge 172:65be27845400 115 * @brief Write a value in CRC register
AnnaBridge 172:65be27845400 116 * @param __INSTANCE__ CRC Instance
AnnaBridge 172:65be27845400 117 * @param __REG__ Register to be written
AnnaBridge 172:65be27845400 118 * @param __VALUE__ Value to be written in the register
AnnaBridge 172:65be27845400 119 * @retval None
AnnaBridge 172:65be27845400 120 */
AnnaBridge 172:65be27845400 121 #define LL_CRC_WriteReg(__INSTANCE__, __REG__, __VALUE__) WRITE_REG(__INSTANCE__->__REG__, __VALUE__)
AnnaBridge 172:65be27845400 122
AnnaBridge 172:65be27845400 123 /**
AnnaBridge 172:65be27845400 124 * @brief Read a value in CRC register
AnnaBridge 172:65be27845400 125 * @param __INSTANCE__ CRC Instance
AnnaBridge 172:65be27845400 126 * @param __REG__ Register to be read
AnnaBridge 172:65be27845400 127 * @retval Register value
AnnaBridge 172:65be27845400 128 */
AnnaBridge 172:65be27845400 129 #define LL_CRC_ReadReg(__INSTANCE__, __REG__) READ_REG(__INSTANCE__->__REG__)
AnnaBridge 172:65be27845400 130 /**
AnnaBridge 172:65be27845400 131 * @}
AnnaBridge 172:65be27845400 132 */
AnnaBridge 172:65be27845400 133
AnnaBridge 172:65be27845400 134 /**
AnnaBridge 172:65be27845400 135 * @}
AnnaBridge 172:65be27845400 136 */
AnnaBridge 172:65be27845400 137
AnnaBridge 172:65be27845400 138
AnnaBridge 172:65be27845400 139 /* Exported functions --------------------------------------------------------*/
AnnaBridge 172:65be27845400 140 /** @defgroup CRC_LL_Exported_Functions CRC Exported Functions
AnnaBridge 172:65be27845400 141 * @{
AnnaBridge 172:65be27845400 142 */
AnnaBridge 172:65be27845400 143
AnnaBridge 172:65be27845400 144 /** @defgroup CRC_LL_EF_Configuration CRC Configuration functions
AnnaBridge 172:65be27845400 145 * @{
AnnaBridge 172:65be27845400 146 */
AnnaBridge 172:65be27845400 147
AnnaBridge 172:65be27845400 148 /**
AnnaBridge 172:65be27845400 149 * @brief Reset the CRC calculation unit.
AnnaBridge 172:65be27845400 150 * @note If Programmable Initial CRC value feature
AnnaBridge 172:65be27845400 151 * is available, also set the Data Register to the value stored in the
AnnaBridge 172:65be27845400 152 * CRC_INIT register, otherwise, reset Data Register to its default value.
AnnaBridge 172:65be27845400 153 * @rmtoll CR RESET LL_CRC_ResetCRCCalculationUnit
AnnaBridge 172:65be27845400 154 * @param CRCx CRC Instance
AnnaBridge 172:65be27845400 155 * @retval None
AnnaBridge 172:65be27845400 156 */
AnnaBridge 172:65be27845400 157 __STATIC_INLINE void LL_CRC_ResetCRCCalculationUnit(CRC_TypeDef *CRCx)
AnnaBridge 172:65be27845400 158 {
AnnaBridge 172:65be27845400 159 SET_BIT(CRCx->CR, CRC_CR_RESET);
AnnaBridge 172:65be27845400 160 }
AnnaBridge 172:65be27845400 161
AnnaBridge 172:65be27845400 162 /**
AnnaBridge 172:65be27845400 163 * @brief Configure size of the polynomial.
AnnaBridge 172:65be27845400 164 * @rmtoll CR POLYSIZE LL_CRC_SetPolynomialSize
AnnaBridge 172:65be27845400 165 * @param CRCx CRC Instance
AnnaBridge 172:65be27845400 166 * @param PolySize This parameter can be one of the following values:
AnnaBridge 172:65be27845400 167 * @arg @ref LL_CRC_POLYLENGTH_32B
AnnaBridge 172:65be27845400 168 * @arg @ref LL_CRC_POLYLENGTH_16B
AnnaBridge 172:65be27845400 169 * @arg @ref LL_CRC_POLYLENGTH_8B
AnnaBridge 172:65be27845400 170 * @arg @ref LL_CRC_POLYLENGTH_7B
AnnaBridge 172:65be27845400 171 * @retval None
AnnaBridge 172:65be27845400 172 */
AnnaBridge 172:65be27845400 173 __STATIC_INLINE void LL_CRC_SetPolynomialSize(CRC_TypeDef *CRCx, uint32_t PolySize)
AnnaBridge 172:65be27845400 174 {
AnnaBridge 172:65be27845400 175 MODIFY_REG(CRCx->CR, CRC_CR_POLYSIZE, PolySize);
AnnaBridge 172:65be27845400 176 }
AnnaBridge 172:65be27845400 177
AnnaBridge 172:65be27845400 178 /**
AnnaBridge 172:65be27845400 179 * @brief Return size of the polynomial.
AnnaBridge 172:65be27845400 180 * @rmtoll CR POLYSIZE LL_CRC_GetPolynomialSize
AnnaBridge 172:65be27845400 181 * @param CRCx CRC Instance
AnnaBridge 172:65be27845400 182 * @retval Returned value can be one of the following values:
AnnaBridge 172:65be27845400 183 * @arg @ref LL_CRC_POLYLENGTH_32B
AnnaBridge 172:65be27845400 184 * @arg @ref LL_CRC_POLYLENGTH_16B
AnnaBridge 172:65be27845400 185 * @arg @ref LL_CRC_POLYLENGTH_8B
AnnaBridge 172:65be27845400 186 * @arg @ref LL_CRC_POLYLENGTH_7B
AnnaBridge 172:65be27845400 187 */
AnnaBridge 172:65be27845400 188 __STATIC_INLINE uint32_t LL_CRC_GetPolynomialSize(CRC_TypeDef *CRCx)
AnnaBridge 172:65be27845400 189 {
AnnaBridge 172:65be27845400 190 return (uint32_t)(READ_BIT(CRCx->CR, CRC_CR_POLYSIZE));
AnnaBridge 172:65be27845400 191 }
AnnaBridge 172:65be27845400 192
AnnaBridge 172:65be27845400 193 /**
AnnaBridge 172:65be27845400 194 * @brief Configure the reversal of the bit order of the input data
AnnaBridge 172:65be27845400 195 * @rmtoll CR REV_IN LL_CRC_SetInputDataReverseMode
AnnaBridge 172:65be27845400 196 * @param CRCx CRC Instance
AnnaBridge 172:65be27845400 197 * @param ReverseMode This parameter can be one of the following values:
AnnaBridge 172:65be27845400 198 * @arg @ref LL_CRC_INDATA_REVERSE_NONE
AnnaBridge 172:65be27845400 199 * @arg @ref LL_CRC_INDATA_REVERSE_BYTE
AnnaBridge 172:65be27845400 200 * @arg @ref LL_CRC_INDATA_REVERSE_HALFWORD
AnnaBridge 172:65be27845400 201 * @arg @ref LL_CRC_INDATA_REVERSE_WORD
AnnaBridge 172:65be27845400 202 * @retval None
AnnaBridge 172:65be27845400 203 */
AnnaBridge 172:65be27845400 204 __STATIC_INLINE void LL_CRC_SetInputDataReverseMode(CRC_TypeDef *CRCx, uint32_t ReverseMode)
AnnaBridge 172:65be27845400 205 {
AnnaBridge 172:65be27845400 206 MODIFY_REG(CRCx->CR, CRC_CR_REV_IN, ReverseMode);
AnnaBridge 172:65be27845400 207 }
AnnaBridge 172:65be27845400 208
AnnaBridge 172:65be27845400 209 /**
AnnaBridge 172:65be27845400 210 * @brief Return type of reversal for input data bit order
AnnaBridge 172:65be27845400 211 * @rmtoll CR REV_IN LL_CRC_GetInputDataReverseMode
AnnaBridge 172:65be27845400 212 * @param CRCx CRC Instance
AnnaBridge 172:65be27845400 213 * @retval Returned value can be one of the following values:
AnnaBridge 172:65be27845400 214 * @arg @ref LL_CRC_INDATA_REVERSE_NONE
AnnaBridge 172:65be27845400 215 * @arg @ref LL_CRC_INDATA_REVERSE_BYTE
AnnaBridge 172:65be27845400 216 * @arg @ref LL_CRC_INDATA_REVERSE_HALFWORD
AnnaBridge 172:65be27845400 217 * @arg @ref LL_CRC_INDATA_REVERSE_WORD
AnnaBridge 172:65be27845400 218 */
AnnaBridge 172:65be27845400 219 __STATIC_INLINE uint32_t LL_CRC_GetInputDataReverseMode(CRC_TypeDef *CRCx)
AnnaBridge 172:65be27845400 220 {
AnnaBridge 172:65be27845400 221 return (uint32_t)(READ_BIT(CRCx->CR, CRC_CR_REV_IN));
AnnaBridge 172:65be27845400 222 }
AnnaBridge 172:65be27845400 223
AnnaBridge 172:65be27845400 224 /**
AnnaBridge 172:65be27845400 225 * @brief Configure the reversal of the bit order of the Output data
AnnaBridge 172:65be27845400 226 * @rmtoll CR REV_OUT LL_CRC_SetOutputDataReverseMode
AnnaBridge 172:65be27845400 227 * @param CRCx CRC Instance
AnnaBridge 172:65be27845400 228 * @param ReverseMode This parameter can be one of the following values:
AnnaBridge 172:65be27845400 229 * @arg @ref LL_CRC_OUTDATA_REVERSE_NONE
AnnaBridge 172:65be27845400 230 * @arg @ref LL_CRC_OUTDATA_REVERSE_BIT
AnnaBridge 172:65be27845400 231 * @retval None
AnnaBridge 172:65be27845400 232 */
AnnaBridge 172:65be27845400 233 __STATIC_INLINE void LL_CRC_SetOutputDataReverseMode(CRC_TypeDef *CRCx, uint32_t ReverseMode)
AnnaBridge 172:65be27845400 234 {
AnnaBridge 172:65be27845400 235 MODIFY_REG(CRCx->CR, CRC_CR_REV_OUT, ReverseMode);
AnnaBridge 172:65be27845400 236 }
AnnaBridge 172:65be27845400 237
AnnaBridge 172:65be27845400 238 /**
AnnaBridge 172:65be27845400 239 * @brief Configure the reversal of the bit order of the Output data
AnnaBridge 172:65be27845400 240 * @rmtoll CR REV_OUT LL_CRC_GetOutputDataReverseMode
AnnaBridge 172:65be27845400 241 * @param CRCx CRC Instance
AnnaBridge 172:65be27845400 242 * @retval Returned value can be one of the following values:
AnnaBridge 172:65be27845400 243 * @arg @ref LL_CRC_OUTDATA_REVERSE_NONE
AnnaBridge 172:65be27845400 244 * @arg @ref LL_CRC_OUTDATA_REVERSE_BIT
AnnaBridge 172:65be27845400 245 */
AnnaBridge 172:65be27845400 246 __STATIC_INLINE uint32_t LL_CRC_GetOutputDataReverseMode(CRC_TypeDef *CRCx)
AnnaBridge 172:65be27845400 247 {
AnnaBridge 172:65be27845400 248 return (uint32_t)(READ_BIT(CRCx->CR, CRC_CR_REV_OUT));
AnnaBridge 172:65be27845400 249 }
AnnaBridge 172:65be27845400 250
AnnaBridge 172:65be27845400 251 /**
AnnaBridge 172:65be27845400 252 * @brief Initialize the Programmable initial CRC value.
AnnaBridge 172:65be27845400 253 * @note If the CRC size is less than 32 bits, the least significant bits
AnnaBridge 172:65be27845400 254 * are used to write the correct value
AnnaBridge 172:65be27845400 255 * @note LL_CRC_DEFAULT_CRC_INITVALUE could be used as value for InitCrc parameter.
AnnaBridge 172:65be27845400 256 * @rmtoll INIT INIT LL_CRC_SetInitialData
AnnaBridge 172:65be27845400 257 * @param CRCx CRC Instance
AnnaBridge 172:65be27845400 258 * @param InitCrc Value to be programmed in Programmable initial CRC value register
AnnaBridge 172:65be27845400 259 * @retval None
AnnaBridge 172:65be27845400 260 */
AnnaBridge 172:65be27845400 261 __STATIC_INLINE void LL_CRC_SetInitialData(CRC_TypeDef *CRCx, uint32_t InitCrc)
AnnaBridge 172:65be27845400 262 {
AnnaBridge 172:65be27845400 263 WRITE_REG(CRCx->INIT, InitCrc);
AnnaBridge 172:65be27845400 264 }
AnnaBridge 172:65be27845400 265
AnnaBridge 172:65be27845400 266 /**
AnnaBridge 172:65be27845400 267 * @brief Return current Initial CRC value.
AnnaBridge 172:65be27845400 268 * @note If the CRC size is less than 32 bits, the least significant bits
AnnaBridge 172:65be27845400 269 * are used to read the correct value
AnnaBridge 172:65be27845400 270 * @rmtoll INIT INIT LL_CRC_GetInitialData
AnnaBridge 172:65be27845400 271 * @param CRCx CRC Instance
AnnaBridge 172:65be27845400 272 * @retval Value programmed in Programmable initial CRC value register
AnnaBridge 172:65be27845400 273 */
AnnaBridge 172:65be27845400 274 __STATIC_INLINE uint32_t LL_CRC_GetInitialData(CRC_TypeDef *CRCx)
AnnaBridge 172:65be27845400 275 {
AnnaBridge 172:65be27845400 276 return (uint32_t)(READ_REG(CRCx->INIT));
AnnaBridge 172:65be27845400 277 }
AnnaBridge 172:65be27845400 278
AnnaBridge 172:65be27845400 279 /**
AnnaBridge 172:65be27845400 280 * @brief Initialize the Programmable polynomial value
AnnaBridge 172:65be27845400 281 * (coefficients of the polynomial to be used for CRC calculation).
AnnaBridge 172:65be27845400 282 * @note LL_CRC_DEFAULT_CRC32_POLY could be used as value for PolynomCoef parameter.
AnnaBridge 172:65be27845400 283 * @note Please check Reference Manual and existing Errata Sheets,
AnnaBridge 172:65be27845400 284 * regarding possible limitations for Polynomial values usage.
AnnaBridge 172:65be27845400 285 * For example, for a polynomial of degree 7, X^7 + X^6 + X^5 + X^2 + 1 is written 0x65
AnnaBridge 172:65be27845400 286 * @rmtoll POL POL LL_CRC_SetPolynomialCoef
AnnaBridge 172:65be27845400 287 * @param CRCx CRC Instance
AnnaBridge 172:65be27845400 288 * @param PolynomCoef Value to be programmed in Programmable Polynomial value register
AnnaBridge 172:65be27845400 289 * @retval None
AnnaBridge 172:65be27845400 290 */
AnnaBridge 172:65be27845400 291 __STATIC_INLINE void LL_CRC_SetPolynomialCoef(CRC_TypeDef *CRCx, uint32_t PolynomCoef)
AnnaBridge 172:65be27845400 292 {
AnnaBridge 172:65be27845400 293 WRITE_REG(CRCx->POL, PolynomCoef);
AnnaBridge 172:65be27845400 294 }
AnnaBridge 172:65be27845400 295
AnnaBridge 172:65be27845400 296 /**
AnnaBridge 172:65be27845400 297 * @brief Return current Programmable polynomial value
AnnaBridge 172:65be27845400 298 * @note Please check Reference Manual and existing Errata Sheets,
AnnaBridge 172:65be27845400 299 * regarding possible limitations for Polynomial values usage.
AnnaBridge 172:65be27845400 300 * For example, for a polynomial of degree 7, X^7 + X^6 + X^5 + X^2 + 1 is written 0x65
AnnaBridge 172:65be27845400 301 * @rmtoll POL POL LL_CRC_GetPolynomialCoef
AnnaBridge 172:65be27845400 302 * @param CRCx CRC Instance
AnnaBridge 172:65be27845400 303 * @retval Value programmed in Programmable Polynomial value register
AnnaBridge 172:65be27845400 304 */
AnnaBridge 172:65be27845400 305 __STATIC_INLINE uint32_t LL_CRC_GetPolynomialCoef(CRC_TypeDef *CRCx)
AnnaBridge 172:65be27845400 306 {
AnnaBridge 172:65be27845400 307 return (uint32_t)(READ_REG(CRCx->POL));
AnnaBridge 172:65be27845400 308 }
AnnaBridge 172:65be27845400 309
AnnaBridge 172:65be27845400 310 /**
AnnaBridge 172:65be27845400 311 * @}
AnnaBridge 172:65be27845400 312 */
AnnaBridge 172:65be27845400 313
AnnaBridge 172:65be27845400 314 /** @defgroup CRC_LL_EF_Data_Management Data_Management
AnnaBridge 172:65be27845400 315 * @{
AnnaBridge 172:65be27845400 316 */
AnnaBridge 172:65be27845400 317
AnnaBridge 172:65be27845400 318 /**
AnnaBridge 172:65be27845400 319 * @brief Write given 32-bit data to the CRC calculator
AnnaBridge 172:65be27845400 320 * @rmtoll DR DR LL_CRC_FeedData32
AnnaBridge 172:65be27845400 321 * @param CRCx CRC Instance
AnnaBridge 172:65be27845400 322 * @param InData value to be provided to CRC calculator between between Min_Data=0 and Max_Data=0xFFFFFFFF
AnnaBridge 172:65be27845400 323 * @retval None
AnnaBridge 172:65be27845400 324 */
AnnaBridge 172:65be27845400 325 __STATIC_INLINE void LL_CRC_FeedData32(CRC_TypeDef *CRCx, uint32_t InData)
AnnaBridge 172:65be27845400 326 {
AnnaBridge 172:65be27845400 327 WRITE_REG(CRCx->DR, InData);
AnnaBridge 172:65be27845400 328 }
AnnaBridge 172:65be27845400 329
AnnaBridge 172:65be27845400 330 /**
AnnaBridge 172:65be27845400 331 * @brief Write given 16-bit data to the CRC calculator
AnnaBridge 172:65be27845400 332 * @rmtoll DR DR LL_CRC_FeedData16
AnnaBridge 172:65be27845400 333 * @param CRCx CRC Instance
AnnaBridge 172:65be27845400 334 * @param InData 16 bit value to be provided to CRC calculator between between Min_Data=0 and Max_Data=0xFFFF
AnnaBridge 172:65be27845400 335 * @retval None
AnnaBridge 172:65be27845400 336 */
AnnaBridge 172:65be27845400 337 __STATIC_INLINE void LL_CRC_FeedData16(CRC_TypeDef *CRCx, uint16_t InData)
AnnaBridge 172:65be27845400 338 {
AnnaBridge 172:65be27845400 339 __IO uint16_t *pReg;
AnnaBridge 172:65be27845400 340
AnnaBridge 172:65be27845400 341 pReg = (__IO uint16_t *)(__IO void *)(&CRCx->DR);
AnnaBridge 172:65be27845400 342 *pReg = InData;
AnnaBridge 172:65be27845400 343 }
AnnaBridge 172:65be27845400 344
AnnaBridge 172:65be27845400 345 /**
AnnaBridge 172:65be27845400 346 * @brief Write given 8-bit data to the CRC calculator
AnnaBridge 172:65be27845400 347 * @rmtoll DR DR LL_CRC_FeedData8
AnnaBridge 172:65be27845400 348 * @param CRCx CRC Instance
AnnaBridge 172:65be27845400 349 * @param InData 8 bit value to be provided to CRC calculator between between Min_Data=0 and Max_Data=0xFF
AnnaBridge 172:65be27845400 350 * @retval None
AnnaBridge 172:65be27845400 351 */
AnnaBridge 172:65be27845400 352 __STATIC_INLINE void LL_CRC_FeedData8(CRC_TypeDef *CRCx, uint8_t InData)
AnnaBridge 172:65be27845400 353 {
AnnaBridge 172:65be27845400 354 *(uint8_t __IO *)(&CRCx->DR) = (uint8_t) InData;
AnnaBridge 172:65be27845400 355 }
AnnaBridge 172:65be27845400 356
AnnaBridge 172:65be27845400 357 /**
AnnaBridge 172:65be27845400 358 * @brief Return current CRC calculation result. 32 bits value is returned.
AnnaBridge 172:65be27845400 359 * @rmtoll DR DR LL_CRC_ReadData32
AnnaBridge 172:65be27845400 360 * @param CRCx CRC Instance
AnnaBridge 172:65be27845400 361 * @retval Current CRC calculation result as stored in CRC_DR register (32 bits).
AnnaBridge 172:65be27845400 362 */
AnnaBridge 172:65be27845400 363 __STATIC_INLINE uint32_t LL_CRC_ReadData32(CRC_TypeDef *CRCx)
AnnaBridge 172:65be27845400 364 {
AnnaBridge 172:65be27845400 365 return (uint32_t)(READ_REG(CRCx->DR));
AnnaBridge 172:65be27845400 366 }
AnnaBridge 172:65be27845400 367
AnnaBridge 172:65be27845400 368 /**
AnnaBridge 172:65be27845400 369 * @brief Return current CRC calculation result. 16 bits value is returned.
AnnaBridge 172:65be27845400 370 * @note This function is expected to be used in a 16 bits CRC polynomial size context.
AnnaBridge 172:65be27845400 371 * @rmtoll DR DR LL_CRC_ReadData16
AnnaBridge 172:65be27845400 372 * @param CRCx CRC Instance
AnnaBridge 172:65be27845400 373 * @retval Current CRC calculation result as stored in CRC_DR register (16 bits).
AnnaBridge 172:65be27845400 374 */
AnnaBridge 172:65be27845400 375 __STATIC_INLINE uint16_t LL_CRC_ReadData16(CRC_TypeDef *CRCx)
AnnaBridge 172:65be27845400 376 {
AnnaBridge 172:65be27845400 377 return (uint16_t)READ_REG(CRCx->DR);
AnnaBridge 172:65be27845400 378 }
AnnaBridge 172:65be27845400 379
AnnaBridge 172:65be27845400 380 /**
AnnaBridge 172:65be27845400 381 * @brief Return current CRC calculation result. 8 bits value is returned.
AnnaBridge 172:65be27845400 382 * @note This function is expected to be used in a 8 bits CRC polynomial size context.
AnnaBridge 172:65be27845400 383 * @rmtoll DR DR LL_CRC_ReadData8
AnnaBridge 172:65be27845400 384 * @param CRCx CRC Instance
AnnaBridge 172:65be27845400 385 * @retval Current CRC calculation result as stored in CRC_DR register (8 bits).
AnnaBridge 172:65be27845400 386 */
AnnaBridge 172:65be27845400 387 __STATIC_INLINE uint8_t LL_CRC_ReadData8(CRC_TypeDef *CRCx)
AnnaBridge 172:65be27845400 388 {
AnnaBridge 172:65be27845400 389 return (uint8_t)READ_REG(CRCx->DR);
AnnaBridge 172:65be27845400 390 }
AnnaBridge 172:65be27845400 391
AnnaBridge 172:65be27845400 392 /**
AnnaBridge 172:65be27845400 393 * @brief Return current CRC calculation result. 7 bits value is returned.
AnnaBridge 172:65be27845400 394 * @note This function is expected to be used in a 7 bits CRC polynomial size context.
AnnaBridge 172:65be27845400 395 * @rmtoll DR DR LL_CRC_ReadData7
AnnaBridge 172:65be27845400 396 * @param CRCx CRC Instance
AnnaBridge 172:65be27845400 397 * @retval Current CRC calculation result as stored in CRC_DR register (7 bits).
AnnaBridge 172:65be27845400 398 */
AnnaBridge 172:65be27845400 399 __STATIC_INLINE uint8_t LL_CRC_ReadData7(CRC_TypeDef *CRCx)
AnnaBridge 172:65be27845400 400 {
AnnaBridge 172:65be27845400 401 return (uint8_t)(READ_REG(CRCx->DR) & 0x7FU);
AnnaBridge 172:65be27845400 402 }
AnnaBridge 172:65be27845400 403
AnnaBridge 172:65be27845400 404 /**
AnnaBridge 172:65be27845400 405 * @brief Return data stored in the Independent Data(IDR) register.
AnnaBridge 172:65be27845400 406 * @note This register can be used as a temporary storage location for one 32-bit long data.
AnnaBridge 172:65be27845400 407 * @rmtoll IDR IDR LL_CRC_Read_IDR
AnnaBridge 172:65be27845400 408 * @param CRCx CRC Instance
AnnaBridge 172:65be27845400 409 * @retval Value stored in CRC_IDR register (General-purpose 32-bit data register).
AnnaBridge 172:65be27845400 410 */
AnnaBridge 172:65be27845400 411 __STATIC_INLINE uint32_t LL_CRC_Read_IDR(CRC_TypeDef *CRCx)
AnnaBridge 172:65be27845400 412 {
AnnaBridge 172:65be27845400 413 return (uint32_t)(READ_REG(CRCx->IDR));
AnnaBridge 172:65be27845400 414 }
AnnaBridge 172:65be27845400 415
AnnaBridge 172:65be27845400 416 /**
AnnaBridge 172:65be27845400 417 * @brief Store data in the Independent Data(IDR) register.
AnnaBridge 172:65be27845400 418 * @note This register can be used as a temporary storage location for one 32-bit long data.
AnnaBridge 172:65be27845400 419 * @rmtoll IDR IDR LL_CRC_Write_IDR
AnnaBridge 172:65be27845400 420 * @param CRCx CRC Instance
AnnaBridge 172:65be27845400 421 * @param InData value to be stored in CRC_IDR register (32-bit) between Min_Data=0 and Max_Data=0xFFFFFFFF
AnnaBridge 172:65be27845400 422 * @retval None
AnnaBridge 172:65be27845400 423 */
AnnaBridge 172:65be27845400 424 __STATIC_INLINE void LL_CRC_Write_IDR(CRC_TypeDef *CRCx, uint32_t InData)
AnnaBridge 172:65be27845400 425 {
AnnaBridge 172:65be27845400 426 *((uint32_t __IO *)(&CRCx->IDR)) = (uint32_t) InData;
AnnaBridge 172:65be27845400 427 }
AnnaBridge 172:65be27845400 428 /**
AnnaBridge 172:65be27845400 429 * @}
AnnaBridge 172:65be27845400 430 */
AnnaBridge 172:65be27845400 431
AnnaBridge 172:65be27845400 432 #if defined(USE_FULL_LL_DRIVER)
AnnaBridge 172:65be27845400 433 /** @defgroup CRC_LL_EF_Init Initialization and de-initialization functions
AnnaBridge 172:65be27845400 434 * @{
AnnaBridge 172:65be27845400 435 */
AnnaBridge 172:65be27845400 436
AnnaBridge 172:65be27845400 437 ErrorStatus LL_CRC_DeInit(CRC_TypeDef *CRCx);
AnnaBridge 172:65be27845400 438
AnnaBridge 172:65be27845400 439 /**
AnnaBridge 172:65be27845400 440 * @}
AnnaBridge 172:65be27845400 441 */
AnnaBridge 172:65be27845400 442 #endif /* USE_FULL_LL_DRIVER */
AnnaBridge 172:65be27845400 443
AnnaBridge 172:65be27845400 444 /**
AnnaBridge 172:65be27845400 445 * @}
AnnaBridge 172:65be27845400 446 */
AnnaBridge 172:65be27845400 447
AnnaBridge 172:65be27845400 448 /**
AnnaBridge 172:65be27845400 449 * @}
AnnaBridge 172:65be27845400 450 */
AnnaBridge 172:65be27845400 451
AnnaBridge 172:65be27845400 452 #endif /* defined(CRC) */
AnnaBridge 172:65be27845400 453
AnnaBridge 172:65be27845400 454 /**
AnnaBridge 172:65be27845400 455 * @}
AnnaBridge 172:65be27845400 456 */
AnnaBridge 172:65be27845400 457
AnnaBridge 172:65be27845400 458 #ifdef __cplusplus
AnnaBridge 172:65be27845400 459 }
AnnaBridge 172:65be27845400 460 #endif
AnnaBridge 172:65be27845400 461
AnnaBridge 172:65be27845400 462 #endif /* STM32H7xx_LL_CRC_H */
AnnaBridge 172:65be27845400 463
AnnaBridge 172:65be27845400 464 /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/