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TARGET_DISCO_F303VC/TARGET_STM/TARGET_STM32F3/device/stm32f3xx_ll_crc.h@163:e59c8e839560, 2018-03-20 (annotated)

Committer:
AnnaBridge
Date:
Tue Mar 20 13:30:58 2018 +0000
Revision:
163:e59c8e839560
Child:
168:b9e159c1930a
mbed library. Release version 160

Who changed what in which revision?

UserRevisionLine numberNew contents of line
AnnaBridge 163:e59c8e839560 1 /**
AnnaBridge 163:e59c8e839560 2 ******************************************************************************
AnnaBridge 163:e59c8e839560 3 * @file stm32f3xx_ll_crc.h
AnnaBridge 163:e59c8e839560 4 * @author MCD Application Team
AnnaBridge 163:e59c8e839560 5 * @version V1.4.0
AnnaBridge 163:e59c8e839560 6 * @date 16-December-2016
AnnaBridge 163:e59c8e839560 7 * @brief Header file of CRC LL module.
AnnaBridge 163:e59c8e839560 8 ******************************************************************************
AnnaBridge 163:e59c8e839560 9 * @attention
AnnaBridge 163:e59c8e839560 10 *
AnnaBridge 163:e59c8e839560 11 * <h2><center>&copy; COPYRIGHT(c) 2016 STMicroelectronics</center></h2>
AnnaBridge 163:e59c8e839560 12 *
AnnaBridge 163:e59c8e839560 13 * Redistribution and use in source and binary forms, with or without modification,
AnnaBridge 163:e59c8e839560 14 * are permitted provided that the following conditions are met:
AnnaBridge 163:e59c8e839560 15 * 1. Redistributions of source code must retain the above copyright notice,
AnnaBridge 163:e59c8e839560 16 * this list of conditions and the following disclaimer.
AnnaBridge 163:e59c8e839560 17 * 2. Redistributions in binary form must reproduce the above copyright notice,
AnnaBridge 163:e59c8e839560 18 * this list of conditions and the following disclaimer in the documentation
AnnaBridge 163:e59c8e839560 19 * and/or other materials provided with the distribution.
AnnaBridge 163:e59c8e839560 20 * 3. Neither the name of STMicroelectronics nor the names of its contributors
AnnaBridge 163:e59c8e839560 21 * may be used to endorse or promote products derived from this software
AnnaBridge 163:e59c8e839560 22 * without specific prior written permission.
AnnaBridge 163:e59c8e839560 23 *
AnnaBridge 163:e59c8e839560 24 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
AnnaBridge 163:e59c8e839560 25 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
AnnaBridge 163:e59c8e839560 26 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
AnnaBridge 163:e59c8e839560 27 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
AnnaBridge 163:e59c8e839560 28 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
AnnaBridge 163:e59c8e839560 29 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
AnnaBridge 163:e59c8e839560 30 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
AnnaBridge 163:e59c8e839560 31 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
AnnaBridge 163:e59c8e839560 32 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
AnnaBridge 163:e59c8e839560 33 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
AnnaBridge 163:e59c8e839560 34 *
AnnaBridge 163:e59c8e839560 35 ******************************************************************************
AnnaBridge 163:e59c8e839560 36 */
AnnaBridge 163:e59c8e839560 37
AnnaBridge 163:e59c8e839560 38 /* Define to prevent recursive inclusion -------------------------------------*/
AnnaBridge 163:e59c8e839560 39 #ifndef __STM32F3xx_LL_CRC_H
AnnaBridge 163:e59c8e839560 40 #define __STM32F3xx_LL_CRC_H
AnnaBridge 163:e59c8e839560 41
AnnaBridge 163:e59c8e839560 42 #ifdef __cplusplus
AnnaBridge 163:e59c8e839560 43 extern "C" {
AnnaBridge 163:e59c8e839560 44 #endif
AnnaBridge 163:e59c8e839560 45
AnnaBridge 163:e59c8e839560 46 /* Includes ------------------------------------------------------------------*/
AnnaBridge 163:e59c8e839560 47 #include "stm32f3xx.h"
AnnaBridge 163:e59c8e839560 48
AnnaBridge 163:e59c8e839560 49 /** @addtogroup STM32F3xx_LL_Driver
AnnaBridge 163:e59c8e839560 50 * @{
AnnaBridge 163:e59c8e839560 51 */
AnnaBridge 163:e59c8e839560 52
AnnaBridge 163:e59c8e839560 53 #if defined(CRC)
AnnaBridge 163:e59c8e839560 54
AnnaBridge 163:e59c8e839560 55 /** @defgroup CRC_LL CRC
AnnaBridge 163:e59c8e839560 56 * @{
AnnaBridge 163:e59c8e839560 57 */
AnnaBridge 163:e59c8e839560 58
AnnaBridge 163:e59c8e839560 59 /* Private types -------------------------------------------------------------*/
AnnaBridge 163:e59c8e839560 60 /* Private variables ---------------------------------------------------------*/
AnnaBridge 163:e59c8e839560 61 /* Private constants ---------------------------------------------------------*/
AnnaBridge 163:e59c8e839560 62 /* Private macros ------------------------------------------------------------*/
AnnaBridge 163:e59c8e839560 63
AnnaBridge 163:e59c8e839560 64 /* Exported types ------------------------------------------------------------*/
AnnaBridge 163:e59c8e839560 65 /* Exported constants --------------------------------------------------------*/
AnnaBridge 163:e59c8e839560 66 /** @defgroup CRC_LL_Exported_Constants CRC Exported Constants
AnnaBridge 163:e59c8e839560 67 * @{
AnnaBridge 163:e59c8e839560 68 */
AnnaBridge 163:e59c8e839560 69
AnnaBridge 163:e59c8e839560 70 /** @defgroup CRC_LL_EC_POLYLENGTH Polynomial length
AnnaBridge 163:e59c8e839560 71 * @{
AnnaBridge 163:e59c8e839560 72 */
AnnaBridge 163:e59c8e839560 73 #define LL_CRC_POLYLENGTH_32B (uint32_t)0x00000000U /*!< 32 bits Polynomial size */
AnnaBridge 163:e59c8e839560 74 #define LL_CRC_POLYLENGTH_16B CRC_CR_POLYSIZE_0 /*!< 16 bits Polynomial size */
AnnaBridge 163:e59c8e839560 75 #define LL_CRC_POLYLENGTH_8B CRC_CR_POLYSIZE_1 /*!< 8 bits Polynomial size */
AnnaBridge 163:e59c8e839560 76 #define LL_CRC_POLYLENGTH_7B (CRC_CR_POLYSIZE_1 | CRC_CR_POLYSIZE_0) /*!< 7 bits Polynomial size */
AnnaBridge 163:e59c8e839560 77 /**
AnnaBridge 163:e59c8e839560 78 * @}
AnnaBridge 163:e59c8e839560 79 */
AnnaBridge 163:e59c8e839560 80
AnnaBridge 163:e59c8e839560 81 /** @defgroup CRC_LL_EC_INDATA_REVERSE Input Data Reverse
AnnaBridge 163:e59c8e839560 82 * @{
AnnaBridge 163:e59c8e839560 83 */
AnnaBridge 163:e59c8e839560 84 #define LL_CRC_INDATA_REVERSE_NONE (uint32_t)0x00000000U /*!< Input Data bit order not affected */
AnnaBridge 163:e59c8e839560 85 #define LL_CRC_INDATA_REVERSE_BYTE CRC_CR_REV_IN_0 /*!< Input Data bit reversal done by byte */
AnnaBridge 163:e59c8e839560 86 #define LL_CRC_INDATA_REVERSE_HALFWORD CRC_CR_REV_IN_1 /*!< Input Data bit reversal done by half-word */
AnnaBridge 163:e59c8e839560 87 #define LL_CRC_INDATA_REVERSE_WORD (CRC_CR_REV_IN_1 | CRC_CR_REV_IN_0) /*!< Input Data bit reversal done by word */
AnnaBridge 163:e59c8e839560 88 /**
AnnaBridge 163:e59c8e839560 89 * @}
AnnaBridge 163:e59c8e839560 90 */
AnnaBridge 163:e59c8e839560 91
AnnaBridge 163:e59c8e839560 92 /** @defgroup CRC_LL_EC_OUTDATA_REVERSE Output Data Reverse
AnnaBridge 163:e59c8e839560 93 * @{
AnnaBridge 163:e59c8e839560 94 */
AnnaBridge 163:e59c8e839560 95 #define LL_CRC_OUTDATA_REVERSE_NONE (uint32_t)0x00000000U /*!< Output Data bit order not affected */
AnnaBridge 163:e59c8e839560 96 #define LL_CRC_OUTDATA_REVERSE_BIT CRC_CR_REV_OUT /*!< Output Data bit reversal done by bit */
AnnaBridge 163:e59c8e839560 97 /**
AnnaBridge 163:e59c8e839560 98 * @}
AnnaBridge 163:e59c8e839560 99 */
AnnaBridge 163:e59c8e839560 100
AnnaBridge 163:e59c8e839560 101 /** @defgroup CRC_LL_EC_Default_Polynomial_Value Default CRC generating polynomial value
AnnaBridge 163:e59c8e839560 102 * @brief Normal representation of this polynomial value is
AnnaBridge 163:e59c8e839560 103 * 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 163:e59c8e839560 104 * @{
AnnaBridge 163:e59c8e839560 105 */
AnnaBridge 163:e59c8e839560 106 #define LL_CRC_DEFAULT_CRC32_POLY (uint32_t)0x04C11DB7U /*!< Default CRC generating polynomial value */
AnnaBridge 163:e59c8e839560 107 /**
AnnaBridge 163:e59c8e839560 108 * @}
AnnaBridge 163:e59c8e839560 109 */
AnnaBridge 163:e59c8e839560 110
AnnaBridge 163:e59c8e839560 111 /** @defgroup CRC_LL_EC_Default_InitValue Default CRC computation initialization value
AnnaBridge 163:e59c8e839560 112 * @{
AnnaBridge 163:e59c8e839560 113 */
AnnaBridge 163:e59c8e839560 114 #define LL_CRC_DEFAULT_CRC_INITVALUE (uint32_t)0xFFFFFFFFU /*!< Default CRC computation initialization value */
AnnaBridge 163:e59c8e839560 115 /**
AnnaBridge 163:e59c8e839560 116 * @}
AnnaBridge 163:e59c8e839560 117 */
AnnaBridge 163:e59c8e839560 118
AnnaBridge 163:e59c8e839560 119 /**
AnnaBridge 163:e59c8e839560 120 * @}
AnnaBridge 163:e59c8e839560 121 */
AnnaBridge 163:e59c8e839560 122
AnnaBridge 163:e59c8e839560 123 /* Exported macro ------------------------------------------------------------*/
AnnaBridge 163:e59c8e839560 124 /** @defgroup CRC_LL_Exported_Macros CRC Exported Macros
AnnaBridge 163:e59c8e839560 125 * @{
AnnaBridge 163:e59c8e839560 126 */
AnnaBridge 163:e59c8e839560 127
AnnaBridge 163:e59c8e839560 128 /** @defgroup CRC_LL_EM_WRITE_READ Common Write and read registers Macros
AnnaBridge 163:e59c8e839560 129 * @{
AnnaBridge 163:e59c8e839560 130 */
AnnaBridge 163:e59c8e839560 131
AnnaBridge 163:e59c8e839560 132 /**
AnnaBridge 163:e59c8e839560 133 * @brief Write a value in CRC register
AnnaBridge 163:e59c8e839560 134 * @param __INSTANCE__ CRC Instance
AnnaBridge 163:e59c8e839560 135 * @param __REG__ Register to be written
AnnaBridge 163:e59c8e839560 136 * @param __VALUE__ Value to be written in the register
AnnaBridge 163:e59c8e839560 137 * @retval None
AnnaBridge 163:e59c8e839560 138 */
AnnaBridge 163:e59c8e839560 139 #define LL_CRC_WriteReg(__INSTANCE__, __REG__, __VALUE__) WRITE_REG(__INSTANCE__->__REG__, (__VALUE__))
AnnaBridge 163:e59c8e839560 140
AnnaBridge 163:e59c8e839560 141 /**
AnnaBridge 163:e59c8e839560 142 * @brief Read a value in CRC register
AnnaBridge 163:e59c8e839560 143 * @param __INSTANCE__ CRC Instance
AnnaBridge 163:e59c8e839560 144 * @param __REG__ Register to be read
AnnaBridge 163:e59c8e839560 145 * @retval Register value
AnnaBridge 163:e59c8e839560 146 */
AnnaBridge 163:e59c8e839560 147 #define LL_CRC_ReadReg(__INSTANCE__, __REG__) READ_REG(__INSTANCE__->__REG__)
AnnaBridge 163:e59c8e839560 148 /**
AnnaBridge 163:e59c8e839560 149 * @}
AnnaBridge 163:e59c8e839560 150 */
AnnaBridge 163:e59c8e839560 151
AnnaBridge 163:e59c8e839560 152 /**
AnnaBridge 163:e59c8e839560 153 * @}
AnnaBridge 163:e59c8e839560 154 */
AnnaBridge 163:e59c8e839560 155
AnnaBridge 163:e59c8e839560 156
AnnaBridge 163:e59c8e839560 157 /* Exported functions --------------------------------------------------------*/
AnnaBridge 163:e59c8e839560 158 /** @defgroup CRC_LL_Exported_Functions CRC Exported Functions
AnnaBridge 163:e59c8e839560 159 * @{
AnnaBridge 163:e59c8e839560 160 */
AnnaBridge 163:e59c8e839560 161
AnnaBridge 163:e59c8e839560 162 /** @defgroup CRC_LL_EF_Configuration CRC Configuration functions
AnnaBridge 163:e59c8e839560 163 * @{
AnnaBridge 163:e59c8e839560 164 */
AnnaBridge 163:e59c8e839560 165
AnnaBridge 163:e59c8e839560 166 /**
AnnaBridge 163:e59c8e839560 167 * @brief Reset the CRC calculation unit.
AnnaBridge 163:e59c8e839560 168 * @note If Programmable Initial CRC value feature
AnnaBridge 163:e59c8e839560 169 * is available, also set the Data Register to the value stored in the
AnnaBridge 163:e59c8e839560 170 * CRC_INIT register, otherwise, reset Data Register to its default value.
AnnaBridge 163:e59c8e839560 171 * @rmtoll CR RESET LL_CRC_ResetCRCCalculationUnit
AnnaBridge 163:e59c8e839560 172 * @param CRCx CRC Instance
AnnaBridge 163:e59c8e839560 173 * @retval None
AnnaBridge 163:e59c8e839560 174 */
AnnaBridge 163:e59c8e839560 175 __STATIC_INLINE void LL_CRC_ResetCRCCalculationUnit(CRC_TypeDef *CRCx)
AnnaBridge 163:e59c8e839560 176 {
AnnaBridge 163:e59c8e839560 177 SET_BIT(CRCx->CR, CRC_CR_RESET);
AnnaBridge 163:e59c8e839560 178 }
AnnaBridge 163:e59c8e839560 179
AnnaBridge 163:e59c8e839560 180 /**
AnnaBridge 163:e59c8e839560 181 * @brief Configure size of the polynomial.
AnnaBridge 163:e59c8e839560 182 * @rmtoll CR POLYSIZE LL_CRC_SetPolynomialSize
AnnaBridge 163:e59c8e839560 183 * @param CRCx CRC Instance
AnnaBridge 163:e59c8e839560 184 * @param PolySize This parameter can be one of the following values:
AnnaBridge 163:e59c8e839560 185 * @arg @ref LL_CRC_POLYLENGTH_32B
AnnaBridge 163:e59c8e839560 186 * @arg @ref LL_CRC_POLYLENGTH_16B
AnnaBridge 163:e59c8e839560 187 * @arg @ref LL_CRC_POLYLENGTH_8B
AnnaBridge 163:e59c8e839560 188 * @arg @ref LL_CRC_POLYLENGTH_7B
AnnaBridge 163:e59c8e839560 189 * @retval None
AnnaBridge 163:e59c8e839560 190 */
AnnaBridge 163:e59c8e839560 191 __STATIC_INLINE void LL_CRC_SetPolynomialSize(CRC_TypeDef *CRCx, uint32_t PolySize)
AnnaBridge 163:e59c8e839560 192 {
AnnaBridge 163:e59c8e839560 193 MODIFY_REG(CRCx->CR, CRC_CR_POLYSIZE, PolySize);
AnnaBridge 163:e59c8e839560 194 }
AnnaBridge 163:e59c8e839560 195
AnnaBridge 163:e59c8e839560 196 /**
AnnaBridge 163:e59c8e839560 197 * @brief Return size of the polynomial.
AnnaBridge 163:e59c8e839560 198 * @rmtoll CR POLYSIZE LL_CRC_GetPolynomialSize
AnnaBridge 163:e59c8e839560 199 * @param CRCx CRC Instance
AnnaBridge 163:e59c8e839560 200 * @retval Returned value can be one of the following values:
AnnaBridge 163:e59c8e839560 201 * @arg @ref LL_CRC_POLYLENGTH_32B
AnnaBridge 163:e59c8e839560 202 * @arg @ref LL_CRC_POLYLENGTH_16B
AnnaBridge 163:e59c8e839560 203 * @arg @ref LL_CRC_POLYLENGTH_8B
AnnaBridge 163:e59c8e839560 204 * @arg @ref LL_CRC_POLYLENGTH_7B
AnnaBridge 163:e59c8e839560 205 */
AnnaBridge 163:e59c8e839560 206 __STATIC_INLINE uint32_t LL_CRC_GetPolynomialSize(CRC_TypeDef *CRCx)
AnnaBridge 163:e59c8e839560 207 {
AnnaBridge 163:e59c8e839560 208 return (uint32_t)(READ_BIT(CRCx->CR, CRC_CR_POLYSIZE));
AnnaBridge 163:e59c8e839560 209 }
AnnaBridge 163:e59c8e839560 210
AnnaBridge 163:e59c8e839560 211 /**
AnnaBridge 163:e59c8e839560 212 * @brief Configure the reversal of the bit order of the input data
AnnaBridge 163:e59c8e839560 213 * @rmtoll CR REV_IN LL_CRC_SetInputDataReverseMode
AnnaBridge 163:e59c8e839560 214 * @param CRCx CRC Instance
AnnaBridge 163:e59c8e839560 215 * @param ReverseMode This parameter can be one of the following values:
AnnaBridge 163:e59c8e839560 216 * @arg @ref LL_CRC_INDATA_REVERSE_NONE
AnnaBridge 163:e59c8e839560 217 * @arg @ref LL_CRC_INDATA_REVERSE_BYTE
AnnaBridge 163:e59c8e839560 218 * @arg @ref LL_CRC_INDATA_REVERSE_HALFWORD
AnnaBridge 163:e59c8e839560 219 * @arg @ref LL_CRC_INDATA_REVERSE_WORD
AnnaBridge 163:e59c8e839560 220 * @retval None
AnnaBridge 163:e59c8e839560 221 */
AnnaBridge 163:e59c8e839560 222 __STATIC_INLINE void LL_CRC_SetInputDataReverseMode(CRC_TypeDef *CRCx, uint32_t ReverseMode)
AnnaBridge 163:e59c8e839560 223 {
AnnaBridge 163:e59c8e839560 224 MODIFY_REG(CRCx->CR, CRC_CR_REV_IN, ReverseMode);
AnnaBridge 163:e59c8e839560 225 }
AnnaBridge 163:e59c8e839560 226
AnnaBridge 163:e59c8e839560 227 /**
AnnaBridge 163:e59c8e839560 228 * @brief Return type of reversal for input data bit order
AnnaBridge 163:e59c8e839560 229 * @rmtoll CR REV_IN LL_CRC_GetInputDataReverseMode
AnnaBridge 163:e59c8e839560 230 * @param CRCx CRC Instance
AnnaBridge 163:e59c8e839560 231 * @retval Returned value can be one of the following values:
AnnaBridge 163:e59c8e839560 232 * @arg @ref LL_CRC_INDATA_REVERSE_NONE
AnnaBridge 163:e59c8e839560 233 * @arg @ref LL_CRC_INDATA_REVERSE_BYTE
AnnaBridge 163:e59c8e839560 234 * @arg @ref LL_CRC_INDATA_REVERSE_HALFWORD
AnnaBridge 163:e59c8e839560 235 * @arg @ref LL_CRC_INDATA_REVERSE_WORD
AnnaBridge 163:e59c8e839560 236 */
AnnaBridge 163:e59c8e839560 237 __STATIC_INLINE uint32_t LL_CRC_GetInputDataReverseMode(CRC_TypeDef *CRCx)
AnnaBridge 163:e59c8e839560 238 {
AnnaBridge 163:e59c8e839560 239 return (uint32_t)(READ_BIT(CRCx->CR, CRC_CR_REV_IN));
AnnaBridge 163:e59c8e839560 240 }
AnnaBridge 163:e59c8e839560 241
AnnaBridge 163:e59c8e839560 242 /**
AnnaBridge 163:e59c8e839560 243 * @brief Configure the reversal of the bit order of the Output data
AnnaBridge 163:e59c8e839560 244 * @rmtoll CR REV_OUT LL_CRC_SetOutputDataReverseMode
AnnaBridge 163:e59c8e839560 245 * @param CRCx CRC Instance
AnnaBridge 163:e59c8e839560 246 * @param ReverseMode This parameter can be one of the following values:
AnnaBridge 163:e59c8e839560 247 * @arg @ref LL_CRC_OUTDATA_REVERSE_NONE
AnnaBridge 163:e59c8e839560 248 * @arg @ref LL_CRC_OUTDATA_REVERSE_BIT
AnnaBridge 163:e59c8e839560 249 * @retval None
AnnaBridge 163:e59c8e839560 250 */
AnnaBridge 163:e59c8e839560 251 __STATIC_INLINE void LL_CRC_SetOutputDataReverseMode(CRC_TypeDef *CRCx, uint32_t ReverseMode)
AnnaBridge 163:e59c8e839560 252 {
AnnaBridge 163:e59c8e839560 253 MODIFY_REG(CRCx->CR, CRC_CR_REV_OUT, ReverseMode);
AnnaBridge 163:e59c8e839560 254 }
AnnaBridge 163:e59c8e839560 255
AnnaBridge 163:e59c8e839560 256 /**
AnnaBridge 163:e59c8e839560 257 * @brief Configure the reversal of the bit order of the Output data
AnnaBridge 163:e59c8e839560 258 * @rmtoll CR REV_OUT LL_CRC_GetOutputDataReverseMode
AnnaBridge 163:e59c8e839560 259 * @param CRCx CRC Instance
AnnaBridge 163:e59c8e839560 260 * @retval Returned value can be one of the following values:
AnnaBridge 163:e59c8e839560 261 * @arg @ref LL_CRC_OUTDATA_REVERSE_NONE
AnnaBridge 163:e59c8e839560 262 * @arg @ref LL_CRC_OUTDATA_REVERSE_BIT
AnnaBridge 163:e59c8e839560 263 */
AnnaBridge 163:e59c8e839560 264 __STATIC_INLINE uint32_t LL_CRC_GetOutputDataReverseMode(CRC_TypeDef *CRCx)
AnnaBridge 163:e59c8e839560 265 {
AnnaBridge 163:e59c8e839560 266 return (uint32_t)(READ_BIT(CRCx->CR, CRC_CR_REV_OUT));
AnnaBridge 163:e59c8e839560 267 }
AnnaBridge 163:e59c8e839560 268
AnnaBridge 163:e59c8e839560 269 /**
AnnaBridge 163:e59c8e839560 270 * @brief Initialize the Programmable initial CRC value.
AnnaBridge 163:e59c8e839560 271 * @note If the CRC size is less than 32 bits, the least significant bits
AnnaBridge 163:e59c8e839560 272 * are used to write the correct value
AnnaBridge 163:e59c8e839560 273 * @note LL_CRC_DEFAULT_CRC_INITVALUE could be used as value for InitCrc parameter.
AnnaBridge 163:e59c8e839560 274 * @rmtoll INIT INIT LL_CRC_SetInitialData
AnnaBridge 163:e59c8e839560 275 * @param CRCx CRC Instance
AnnaBridge 163:e59c8e839560 276 * @param InitCrc Value to be programmed in Programmable initial CRC value register
AnnaBridge 163:e59c8e839560 277 * @retval None
AnnaBridge 163:e59c8e839560 278 */
AnnaBridge 163:e59c8e839560 279 __STATIC_INLINE void LL_CRC_SetInitialData(CRC_TypeDef *CRCx, uint32_t InitCrc)
AnnaBridge 163:e59c8e839560 280 {
AnnaBridge 163:e59c8e839560 281 WRITE_REG(CRCx->INIT, InitCrc);
AnnaBridge 163:e59c8e839560 282 }
AnnaBridge 163:e59c8e839560 283
AnnaBridge 163:e59c8e839560 284 /**
AnnaBridge 163:e59c8e839560 285 * @brief Return current Initial CRC value.
AnnaBridge 163:e59c8e839560 286 * @note If the CRC size is less than 32 bits, the least significant bits
AnnaBridge 163:e59c8e839560 287 * are used to read the correct value
AnnaBridge 163:e59c8e839560 288 * @rmtoll INIT INIT LL_CRC_GetInitialData
AnnaBridge 163:e59c8e839560 289 * @param CRCx CRC Instance
AnnaBridge 163:e59c8e839560 290 * @retval Value programmed in Programmable initial CRC value register
AnnaBridge 163:e59c8e839560 291 */
AnnaBridge 163:e59c8e839560 292 __STATIC_INLINE uint32_t LL_CRC_GetInitialData(CRC_TypeDef *CRCx)
AnnaBridge 163:e59c8e839560 293 {
AnnaBridge 163:e59c8e839560 294 return (uint32_t)(READ_REG(CRCx->INIT));
AnnaBridge 163:e59c8e839560 295 }
AnnaBridge 163:e59c8e839560 296
AnnaBridge 163:e59c8e839560 297 /**
AnnaBridge 163:e59c8e839560 298 * @brief Initialize the Programmable polynomial value
AnnaBridge 163:e59c8e839560 299 * (coefficients of the polynomial to be used for CRC calculation).
AnnaBridge 163:e59c8e839560 300 * @note LL_CRC_DEFAULT_CRC32_POLY could be used as value for PolynomCoef parameter.
AnnaBridge 163:e59c8e839560 301 * @note Please check Reference Manual and existing Errata Sheets,
AnnaBridge 163:e59c8e839560 302 * regarding possible limitations for Polynomial values usage.
AnnaBridge 163:e59c8e839560 303 * For example, for a polynomial of degree 7, X^7 + X^6 + X^5 + X^2 + 1 is written 0x65
AnnaBridge 163:e59c8e839560 304 * @rmtoll POL POL LL_CRC_SetPolynomialCoef
AnnaBridge 163:e59c8e839560 305 * @param CRCx CRC Instance
AnnaBridge 163:e59c8e839560 306 * @param PolynomCoef Value to be programmed in Programmable Polynomial value register
AnnaBridge 163:e59c8e839560 307 * @retval None
AnnaBridge 163:e59c8e839560 308 */
AnnaBridge 163:e59c8e839560 309 __STATIC_INLINE void LL_CRC_SetPolynomialCoef(CRC_TypeDef *CRCx, uint32_t PolynomCoef)
AnnaBridge 163:e59c8e839560 310 {
AnnaBridge 163:e59c8e839560 311 WRITE_REG(CRCx->POL, PolynomCoef);
AnnaBridge 163:e59c8e839560 312 }
AnnaBridge 163:e59c8e839560 313
AnnaBridge 163:e59c8e839560 314 /**
AnnaBridge 163:e59c8e839560 315 * @brief Return current Programmable polynomial value
AnnaBridge 163:e59c8e839560 316 * @note Please check Reference Manual and existing Errata Sheets,
AnnaBridge 163:e59c8e839560 317 * regarding possible limitations for Polynomial values usage.
AnnaBridge 163:e59c8e839560 318 * For example, for a polynomial of degree 7, X^7 + X^6 + X^5 + X^2 + 1 is written 0x65
AnnaBridge 163:e59c8e839560 319 * @rmtoll POL POL LL_CRC_GetPolynomialCoef
AnnaBridge 163:e59c8e839560 320 * @param CRCx CRC Instance
AnnaBridge 163:e59c8e839560 321 * @retval Value programmed in Programmable Polynomial value register
AnnaBridge 163:e59c8e839560 322 */
AnnaBridge 163:e59c8e839560 323 __STATIC_INLINE uint32_t LL_CRC_GetPolynomialCoef(CRC_TypeDef *CRCx)
AnnaBridge 163:e59c8e839560 324 {
AnnaBridge 163:e59c8e839560 325 return (uint32_t)(READ_REG(CRCx->POL));
AnnaBridge 163:e59c8e839560 326 }
AnnaBridge 163:e59c8e839560 327
AnnaBridge 163:e59c8e839560 328 /**
AnnaBridge 163:e59c8e839560 329 * @}
AnnaBridge 163:e59c8e839560 330 */
AnnaBridge 163:e59c8e839560 331
AnnaBridge 163:e59c8e839560 332 /** @defgroup CRC_LL_EF_Data_Management Data_Management
AnnaBridge 163:e59c8e839560 333 * @{
AnnaBridge 163:e59c8e839560 334 */
AnnaBridge 163:e59c8e839560 335
AnnaBridge 163:e59c8e839560 336 /**
AnnaBridge 163:e59c8e839560 337 * @brief Write given 32-bit data to the CRC calculator
AnnaBridge 163:e59c8e839560 338 * @rmtoll DR DR LL_CRC_FeedData32
AnnaBridge 163:e59c8e839560 339 * @param CRCx CRC Instance
AnnaBridge 163:e59c8e839560 340 * @param InData value to be provided to CRC calculator between between Min_Data=0 and Max_Data=0xFFFFFFFF
AnnaBridge 163:e59c8e839560 341 * @retval None
AnnaBridge 163:e59c8e839560 342 */
AnnaBridge 163:e59c8e839560 343 __STATIC_INLINE void LL_CRC_FeedData32(CRC_TypeDef *CRCx, uint32_t InData)
AnnaBridge 163:e59c8e839560 344 {
AnnaBridge 163:e59c8e839560 345 WRITE_REG(CRCx->DR, InData);
AnnaBridge 163:e59c8e839560 346 }
AnnaBridge 163:e59c8e839560 347
AnnaBridge 163:e59c8e839560 348 /**
AnnaBridge 163:e59c8e839560 349 * @brief Write given 16-bit data to the CRC calculator
AnnaBridge 163:e59c8e839560 350 * @rmtoll DR DR LL_CRC_FeedData16
AnnaBridge 163:e59c8e839560 351 * @param CRCx CRC Instance
AnnaBridge 163:e59c8e839560 352 * @param InData 16 bit value to be provided to CRC calculator between between Min_Data=0 and Max_Data=0xFFFF
AnnaBridge 163:e59c8e839560 353 * @retval None
AnnaBridge 163:e59c8e839560 354 */
AnnaBridge 163:e59c8e839560 355 __STATIC_INLINE void LL_CRC_FeedData16(CRC_TypeDef *CRCx, uint16_t InData)
AnnaBridge 163:e59c8e839560 356 {
AnnaBridge 163:e59c8e839560 357 *(uint16_t __IO *)(&CRCx->DR) = (uint16_t) InData;
AnnaBridge 163:e59c8e839560 358 }
AnnaBridge 163:e59c8e839560 359
AnnaBridge 163:e59c8e839560 360 /**
AnnaBridge 163:e59c8e839560 361 * @brief Write given 8-bit data to the CRC calculator
AnnaBridge 163:e59c8e839560 362 * @rmtoll DR DR LL_CRC_FeedData8
AnnaBridge 163:e59c8e839560 363 * @param CRCx CRC Instance
AnnaBridge 163:e59c8e839560 364 * @param InData 8 bit value to be provided to CRC calculator between between Min_Data=0 and Max_Data=0xFF
AnnaBridge 163:e59c8e839560 365 * @retval None
AnnaBridge 163:e59c8e839560 366 */
AnnaBridge 163:e59c8e839560 367 __STATIC_INLINE void LL_CRC_FeedData8(CRC_TypeDef *CRCx, uint8_t InData)
AnnaBridge 163:e59c8e839560 368 {
AnnaBridge 163:e59c8e839560 369 *(uint8_t __IO *)(&CRCx->DR) = (uint8_t) InData;
AnnaBridge 163:e59c8e839560 370 }
AnnaBridge 163:e59c8e839560 371
AnnaBridge 163:e59c8e839560 372 /**
AnnaBridge 163:e59c8e839560 373 * @brief Return current CRC calculation result. 32 bits value is returned.
AnnaBridge 163:e59c8e839560 374 * @rmtoll DR DR LL_CRC_ReadData32
AnnaBridge 163:e59c8e839560 375 * @param CRCx CRC Instance
AnnaBridge 163:e59c8e839560 376 * @retval Current CRC calculation result as stored in CRC_DR register (32 bits).
AnnaBridge 163:e59c8e839560 377 */
AnnaBridge 163:e59c8e839560 378 __STATIC_INLINE uint32_t LL_CRC_ReadData32(CRC_TypeDef *CRCx)
AnnaBridge 163:e59c8e839560 379 {
AnnaBridge 163:e59c8e839560 380 return (uint32_t)(READ_REG(CRCx->DR));
AnnaBridge 163:e59c8e839560 381 }
AnnaBridge 163:e59c8e839560 382
AnnaBridge 163:e59c8e839560 383 /**
AnnaBridge 163:e59c8e839560 384 * @brief Return current CRC calculation result. 16 bits value is returned.
AnnaBridge 163:e59c8e839560 385 * @note This function is expected to be used in a 16 bits CRC polynomial size context.
AnnaBridge 163:e59c8e839560 386 * @rmtoll DR DR LL_CRC_ReadData16
AnnaBridge 163:e59c8e839560 387 * @param CRCx CRC Instance
AnnaBridge 163:e59c8e839560 388 * @retval Current CRC calculation result as stored in CRC_DR register (16 bits).
AnnaBridge 163:e59c8e839560 389 */
AnnaBridge 163:e59c8e839560 390 __STATIC_INLINE uint16_t LL_CRC_ReadData16(CRC_TypeDef *CRCx)
AnnaBridge 163:e59c8e839560 391 {
AnnaBridge 163:e59c8e839560 392 return (uint16_t)READ_REG(CRCx->DR);
AnnaBridge 163:e59c8e839560 393 }
AnnaBridge 163:e59c8e839560 394
AnnaBridge 163:e59c8e839560 395 /**
AnnaBridge 163:e59c8e839560 396 * @brief Return current CRC calculation result. 8 bits value is returned.
AnnaBridge 163:e59c8e839560 397 * @note This function is expected to be used in a 8 bits CRC polynomial size context.
AnnaBridge 163:e59c8e839560 398 * @rmtoll DR DR LL_CRC_ReadData8
AnnaBridge 163:e59c8e839560 399 * @param CRCx CRC Instance
AnnaBridge 163:e59c8e839560 400 * @retval Current CRC calculation result as stored in CRC_DR register (8 bits).
AnnaBridge 163:e59c8e839560 401 */
AnnaBridge 163:e59c8e839560 402 __STATIC_INLINE uint8_t LL_CRC_ReadData8(CRC_TypeDef *CRCx)
AnnaBridge 163:e59c8e839560 403 {
AnnaBridge 163:e59c8e839560 404 return (uint8_t)READ_REG(CRCx->DR);
AnnaBridge 163:e59c8e839560 405 }
AnnaBridge 163:e59c8e839560 406
AnnaBridge 163:e59c8e839560 407 /**
AnnaBridge 163:e59c8e839560 408 * @brief Return current CRC calculation result. 7 bits value is returned.
AnnaBridge 163:e59c8e839560 409 * @note This function is expected to be used in a 7 bits CRC polynomial size context.
AnnaBridge 163:e59c8e839560 410 * @rmtoll DR DR LL_CRC_ReadData7
AnnaBridge 163:e59c8e839560 411 * @param CRCx CRC Instance
AnnaBridge 163:e59c8e839560 412 * @retval Current CRC calculation result as stored in CRC_DR register (7 bits).
AnnaBridge 163:e59c8e839560 413 */
AnnaBridge 163:e59c8e839560 414 __STATIC_INLINE uint8_t LL_CRC_ReadData7(CRC_TypeDef *CRCx)
AnnaBridge 163:e59c8e839560 415 {
AnnaBridge 163:e59c8e839560 416 return (uint8_t)(READ_REG(CRCx->DR) & 0x7FU);
AnnaBridge 163:e59c8e839560 417 }
AnnaBridge 163:e59c8e839560 418
AnnaBridge 163:e59c8e839560 419 /**
AnnaBridge 163:e59c8e839560 420 * @brief Return data stored in the Independent Data(IDR) register.
AnnaBridge 163:e59c8e839560 421 * @note This register can be used as a temporary storage location for one byte.
AnnaBridge 163:e59c8e839560 422 * @rmtoll IDR IDR LL_CRC_Read_IDR
AnnaBridge 163:e59c8e839560 423 * @param CRCx CRC Instance
AnnaBridge 163:e59c8e839560 424 * @retval Value stored in CRC_IDR register (General-purpose 8-bit data register).
AnnaBridge 163:e59c8e839560 425 */
AnnaBridge 163:e59c8e839560 426 __STATIC_INLINE uint32_t LL_CRC_Read_IDR(CRC_TypeDef *CRCx)
AnnaBridge 163:e59c8e839560 427 {
AnnaBridge 163:e59c8e839560 428 return (uint32_t)(READ_REG(CRCx->IDR));
AnnaBridge 163:e59c8e839560 429 }
AnnaBridge 163:e59c8e839560 430
AnnaBridge 163:e59c8e839560 431 /**
AnnaBridge 163:e59c8e839560 432 * @brief Store data in the Independent Data(IDR) register.
AnnaBridge 163:e59c8e839560 433 * @note This register can be used as a temporary storage location for one byte.
AnnaBridge 163:e59c8e839560 434 * @rmtoll IDR IDR LL_CRC_Write_IDR
AnnaBridge 163:e59c8e839560 435 * @param CRCx CRC Instance
AnnaBridge 163:e59c8e839560 436 * @param InData value to be stored in CRC_IDR register (8-bit) between between Min_Data=0 and Max_Data=0xFF
AnnaBridge 163:e59c8e839560 437 * @retval None
AnnaBridge 163:e59c8e839560 438 */
AnnaBridge 163:e59c8e839560 439 __STATIC_INLINE void LL_CRC_Write_IDR(CRC_TypeDef *CRCx, uint32_t InData)
AnnaBridge 163:e59c8e839560 440 {
AnnaBridge 163:e59c8e839560 441 *((uint8_t __IO *)(&CRCx->IDR)) = (uint8_t) InData;
AnnaBridge 163:e59c8e839560 442 }
AnnaBridge 163:e59c8e839560 443 /**
AnnaBridge 163:e59c8e839560 444 * @}
AnnaBridge 163:e59c8e839560 445 */
AnnaBridge 163:e59c8e839560 446
AnnaBridge 163:e59c8e839560 447 #if defined(USE_FULL_LL_DRIVER)
AnnaBridge 163:e59c8e839560 448 /** @defgroup CRC_LL_EF_Init Initialization and de-initialization functions
AnnaBridge 163:e59c8e839560 449 * @{
AnnaBridge 163:e59c8e839560 450 */
AnnaBridge 163:e59c8e839560 451
AnnaBridge 163:e59c8e839560 452 ErrorStatus LL_CRC_DeInit(CRC_TypeDef *CRCx);
AnnaBridge 163:e59c8e839560 453
AnnaBridge 163:e59c8e839560 454 /**
AnnaBridge 163:e59c8e839560 455 * @}
AnnaBridge 163:e59c8e839560 456 */
AnnaBridge 163:e59c8e839560 457 #endif /* USE_FULL_LL_DRIVER */
AnnaBridge 163:e59c8e839560 458
AnnaBridge 163:e59c8e839560 459 /**
AnnaBridge 163:e59c8e839560 460 * @}
AnnaBridge 163:e59c8e839560 461 */
AnnaBridge 163:e59c8e839560 462
AnnaBridge 163:e59c8e839560 463 /**
AnnaBridge 163:e59c8e839560 464 * @}
AnnaBridge 163:e59c8e839560 465 */
AnnaBridge 163:e59c8e839560 466
AnnaBridge 163:e59c8e839560 467 #endif /* defined(CRC) */
AnnaBridge 163:e59c8e839560 468
AnnaBridge 163:e59c8e839560 469 /**
AnnaBridge 163:e59c8e839560 470 * @}
AnnaBridge 163:e59c8e839560 471 */
AnnaBridge 163:e59c8e839560 472
AnnaBridge 163:e59c8e839560 473 #ifdef __cplusplus
AnnaBridge 163:e59c8e839560 474 }
AnnaBridge 163:e59c8e839560 475 #endif
AnnaBridge 163:e59c8e839560 476
AnnaBridge 163:e59c8e839560 477 #endif /* __STM32F3xx_LL_CRC_H */
AnnaBridge 163:e59c8e839560 478
AnnaBridge 163:e59c8e839560 479 /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/