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TARGET_NUCLEO_L011K4/TARGET_STM/TARGET_STM32L0/device/stm32l0xx_ll_crc.h@157:e7ca05fa8600, 2017-11-09 (annotated)

Committer:
AnnaBridge
Date:
Thu Nov 09 11:14:10 2017 +0000
Revision:
157:e7ca05fa8600
Child:
167:84c0a372a020
Release 155 of the mbed library.

Who changed what in which revision?

UserRevisionLine numberNew contents of line
AnnaBridge 157:e7ca05fa8600 1 /**
AnnaBridge 157:e7ca05fa8600 2 ******************************************************************************
AnnaBridge 157:e7ca05fa8600 3 * @file stm32l0xx_ll_crc.h
AnnaBridge 157:e7ca05fa8600 4 * @author MCD Application Team
AnnaBridge 157:e7ca05fa8600 5 * @version V1.7.0
AnnaBridge 157:e7ca05fa8600 6 * @date 31-May-2016
AnnaBridge 157:e7ca05fa8600 7 * @brief Header file of CRC LL module.
AnnaBridge 157:e7ca05fa8600 8 ******************************************************************************
AnnaBridge 157:e7ca05fa8600 9 * @attention
AnnaBridge 157:e7ca05fa8600 10 *
AnnaBridge 157:e7ca05fa8600 11 * <h2><center>&copy; COPYRIGHT(c) 2016 STMicroelectronics</center></h2>
AnnaBridge 157:e7ca05fa8600 12 *
AnnaBridge 157:e7ca05fa8600 13 * Redistribution and use in source and binary forms, with or without modification,
AnnaBridge 157:e7ca05fa8600 14 * are permitted provided that the following conditions are met:
AnnaBridge 157:e7ca05fa8600 15 * 1. Redistributions of source code must retain the above copyright notice,
AnnaBridge 157:e7ca05fa8600 16 * this list of conditions and the following disclaimer.
AnnaBridge 157:e7ca05fa8600 17 * 2. Redistributions in binary form must reproduce the above copyright notice,
AnnaBridge 157:e7ca05fa8600 18 * this list of conditions and the following disclaimer in the documentation
AnnaBridge 157:e7ca05fa8600 19 * and/or other materials provided with the distribution.
AnnaBridge 157:e7ca05fa8600 20 * 3. Neither the name of STMicroelectronics nor the names of its contributors
AnnaBridge 157:e7ca05fa8600 21 * may be used to endorse or promote products derived from this software
AnnaBridge 157:e7ca05fa8600 22 * without specific prior written permission.
AnnaBridge 157:e7ca05fa8600 23 *
AnnaBridge 157:e7ca05fa8600 24 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
AnnaBridge 157:e7ca05fa8600 25 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
AnnaBridge 157:e7ca05fa8600 26 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
AnnaBridge 157:e7ca05fa8600 27 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
AnnaBridge 157:e7ca05fa8600 28 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
AnnaBridge 157:e7ca05fa8600 29 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
AnnaBridge 157:e7ca05fa8600 30 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
AnnaBridge 157:e7ca05fa8600 31 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
AnnaBridge 157:e7ca05fa8600 32 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
AnnaBridge 157:e7ca05fa8600 33 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
AnnaBridge 157:e7ca05fa8600 34 *
AnnaBridge 157:e7ca05fa8600 35 ******************************************************************************
AnnaBridge 157:e7ca05fa8600 36 */
AnnaBridge 157:e7ca05fa8600 37
AnnaBridge 157:e7ca05fa8600 38 /* Define to prevent recursive inclusion -------------------------------------*/
AnnaBridge 157:e7ca05fa8600 39 #ifndef __STM32L0xx_LL_CRC_H
AnnaBridge 157:e7ca05fa8600 40 #define __STM32L0xx_LL_CRC_H
AnnaBridge 157:e7ca05fa8600 41
AnnaBridge 157:e7ca05fa8600 42 #ifdef __cplusplus
AnnaBridge 157:e7ca05fa8600 43 extern "C" {
AnnaBridge 157:e7ca05fa8600 44 #endif
AnnaBridge 157:e7ca05fa8600 45
AnnaBridge 157:e7ca05fa8600 46 /* Includes ------------------------------------------------------------------*/
AnnaBridge 157:e7ca05fa8600 47 #include "stm32l0xx.h"
AnnaBridge 157:e7ca05fa8600 48
AnnaBridge 157:e7ca05fa8600 49 /** @addtogroup STM32L0xx_LL_Driver
AnnaBridge 157:e7ca05fa8600 50 * @{
AnnaBridge 157:e7ca05fa8600 51 */
AnnaBridge 157:e7ca05fa8600 52
AnnaBridge 157:e7ca05fa8600 53 #if defined(CRC)
AnnaBridge 157:e7ca05fa8600 54
AnnaBridge 157:e7ca05fa8600 55 /** @defgroup CRC_LL CRC
AnnaBridge 157:e7ca05fa8600 56 * @{
AnnaBridge 157:e7ca05fa8600 57 */
AnnaBridge 157:e7ca05fa8600 58
AnnaBridge 157:e7ca05fa8600 59 /* Private types -------------------------------------------------------------*/
AnnaBridge 157:e7ca05fa8600 60 /* Private variables ---------------------------------------------------------*/
AnnaBridge 157:e7ca05fa8600 61 /* Private constants ---------------------------------------------------------*/
AnnaBridge 157:e7ca05fa8600 62 /* Private macros ------------------------------------------------------------*/
AnnaBridge 157:e7ca05fa8600 63
AnnaBridge 157:e7ca05fa8600 64 /* Exported types ------------------------------------------------------------*/
AnnaBridge 157:e7ca05fa8600 65 /* Exported constants --------------------------------------------------------*/
AnnaBridge 157:e7ca05fa8600 66 /** @defgroup CRC_LL_Exported_Constants CRC Exported Constants
AnnaBridge 157:e7ca05fa8600 67 * @{
AnnaBridge 157:e7ca05fa8600 68 */
AnnaBridge 157:e7ca05fa8600 69
AnnaBridge 157:e7ca05fa8600 70 /** @defgroup CRC_LL_EC_POLYLENGTH Polynomial length
AnnaBridge 157:e7ca05fa8600 71 * @{
AnnaBridge 157:e7ca05fa8600 72 */
AnnaBridge 157:e7ca05fa8600 73 #define LL_CRC_POLYLENGTH_32B (uint32_t)0x00000000U /*!< 32 bits Polynomial size */
AnnaBridge 157:e7ca05fa8600 74 #define LL_CRC_POLYLENGTH_16B CRC_CR_POLYSIZE_0 /*!< 16 bits Polynomial size */
AnnaBridge 157:e7ca05fa8600 75 #define LL_CRC_POLYLENGTH_8B CRC_CR_POLYSIZE_1 /*!< 8 bits Polynomial size */
AnnaBridge 157:e7ca05fa8600 76 #define LL_CRC_POLYLENGTH_7B (CRC_CR_POLYSIZE_1 | CRC_CR_POLYSIZE_0) /*!< 7 bits Polynomial size */
AnnaBridge 157:e7ca05fa8600 77 /**
AnnaBridge 157:e7ca05fa8600 78 * @}
AnnaBridge 157:e7ca05fa8600 79 */
AnnaBridge 157:e7ca05fa8600 80
AnnaBridge 157:e7ca05fa8600 81 /** @defgroup CRC_LL_EC_INDATA_REVERSE Input Data Reverse
AnnaBridge 157:e7ca05fa8600 82 * @{
AnnaBridge 157:e7ca05fa8600 83 */
AnnaBridge 157:e7ca05fa8600 84 #define LL_CRC_INDATA_REVERSE_NONE (uint32_t)0x00000000U /*!< Input Data bit order not affected */
AnnaBridge 157:e7ca05fa8600 85 #define LL_CRC_INDATA_REVERSE_BYTE CRC_CR_REV_IN_0 /*!< Input Data bit reversal done by byte */
AnnaBridge 157:e7ca05fa8600 86 #define LL_CRC_INDATA_REVERSE_HALFWORD CRC_CR_REV_IN_1 /*!< Input Data bit reversal done by half-word */
AnnaBridge 157:e7ca05fa8600 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 157:e7ca05fa8600 88 /**
AnnaBridge 157:e7ca05fa8600 89 * @}
AnnaBridge 157:e7ca05fa8600 90 */
AnnaBridge 157:e7ca05fa8600 91
AnnaBridge 157:e7ca05fa8600 92 /** @defgroup CRC_LL_EC_OUTDATA_REVERSE Output Data Reverse
AnnaBridge 157:e7ca05fa8600 93 * @{
AnnaBridge 157:e7ca05fa8600 94 */
AnnaBridge 157:e7ca05fa8600 95 #define LL_CRC_OUTDATA_REVERSE_NONE (uint32_t)0x00000000U /*!< Output Data bit order not affected */
AnnaBridge 157:e7ca05fa8600 96 #define LL_CRC_OUTDATA_REVERSE_BIT CRC_CR_REV_OUT /*!< Output Data bit reversal done by bit */
AnnaBridge 157:e7ca05fa8600 97 /**
AnnaBridge 157:e7ca05fa8600 98 * @}
AnnaBridge 157:e7ca05fa8600 99 */
AnnaBridge 157:e7ca05fa8600 100
AnnaBridge 157:e7ca05fa8600 101 /** @defgroup CRC_LL_EC_Default_Polynomial_Value Default CRC generating polynomial value
AnnaBridge 157:e7ca05fa8600 102 * @brief Normal representation of this polynomial value is
AnnaBridge 157:e7ca05fa8600 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 157:e7ca05fa8600 104 * @{
AnnaBridge 157:e7ca05fa8600 105 */
AnnaBridge 157:e7ca05fa8600 106 #define LL_CRC_DEFAULT_CRC32_POLY (uint32_t)0x04C11DB7U /*!< Default CRC generating polynomial value */
AnnaBridge 157:e7ca05fa8600 107 /**
AnnaBridge 157:e7ca05fa8600 108 * @}
AnnaBridge 157:e7ca05fa8600 109 */
AnnaBridge 157:e7ca05fa8600 110
AnnaBridge 157:e7ca05fa8600 111 /** @defgroup CRC_LL_EC_Default_InitValue Default CRC computation initialization value
AnnaBridge 157:e7ca05fa8600 112 * @{
AnnaBridge 157:e7ca05fa8600 113 */
AnnaBridge 157:e7ca05fa8600 114 #define LL_CRC_DEFAULT_CRC_INITVALUE (uint32_t)0xFFFFFFFFU /*!< Default CRC computation initialization value */
AnnaBridge 157:e7ca05fa8600 115 /**
AnnaBridge 157:e7ca05fa8600 116 * @}
AnnaBridge 157:e7ca05fa8600 117 */
AnnaBridge 157:e7ca05fa8600 118
AnnaBridge 157:e7ca05fa8600 119 /**
AnnaBridge 157:e7ca05fa8600 120 * @}
AnnaBridge 157:e7ca05fa8600 121 */
AnnaBridge 157:e7ca05fa8600 122
AnnaBridge 157:e7ca05fa8600 123 /* Exported macro ------------------------------------------------------------*/
AnnaBridge 157:e7ca05fa8600 124 /** @defgroup CRC_LL_Exported_Macros CRC Exported Macros
AnnaBridge 157:e7ca05fa8600 125 * @{
AnnaBridge 157:e7ca05fa8600 126 */
AnnaBridge 157:e7ca05fa8600 127
AnnaBridge 157:e7ca05fa8600 128 /** @defgroup CRC_LL_EM_WRITE_READ Common Write and read registers Macros
AnnaBridge 157:e7ca05fa8600 129 * @{
AnnaBridge 157:e7ca05fa8600 130 */
AnnaBridge 157:e7ca05fa8600 131
AnnaBridge 157:e7ca05fa8600 132 /**
AnnaBridge 157:e7ca05fa8600 133 * @brief Write a value in CRC register
AnnaBridge 157:e7ca05fa8600 134 * @param __INSTANCE__ CRC Instance
AnnaBridge 157:e7ca05fa8600 135 * @param __REG__ Register to be written
AnnaBridge 157:e7ca05fa8600 136 * @param __VALUE__ Value to be written in the register
AnnaBridge 157:e7ca05fa8600 137 * @retval None
AnnaBridge 157:e7ca05fa8600 138 */
AnnaBridge 157:e7ca05fa8600 139 #define LL_CRC_WriteReg(__INSTANCE__, __REG__, __VALUE__) WRITE_REG(__INSTANCE__->__REG__, (__VALUE__))
AnnaBridge 157:e7ca05fa8600 140
AnnaBridge 157:e7ca05fa8600 141 /**
AnnaBridge 157:e7ca05fa8600 142 * @brief Read a value in CRC register
AnnaBridge 157:e7ca05fa8600 143 * @param __INSTANCE__ CRC Instance
AnnaBridge 157:e7ca05fa8600 144 * @param __REG__ Register to be read
AnnaBridge 157:e7ca05fa8600 145 * @retval Register value
AnnaBridge 157:e7ca05fa8600 146 */
AnnaBridge 157:e7ca05fa8600 147 #define LL_CRC_ReadReg(__INSTANCE__, __REG__) READ_REG(__INSTANCE__->__REG__)
AnnaBridge 157:e7ca05fa8600 148 /**
AnnaBridge 157:e7ca05fa8600 149 * @}
AnnaBridge 157:e7ca05fa8600 150 */
AnnaBridge 157:e7ca05fa8600 151
AnnaBridge 157:e7ca05fa8600 152 /**
AnnaBridge 157:e7ca05fa8600 153 * @}
AnnaBridge 157:e7ca05fa8600 154 */
AnnaBridge 157:e7ca05fa8600 155
AnnaBridge 157:e7ca05fa8600 156
AnnaBridge 157:e7ca05fa8600 157 /* Exported functions --------------------------------------------------------*/
AnnaBridge 157:e7ca05fa8600 158 /** @defgroup CRC_LL_Exported_Functions CRC Exported Functions
AnnaBridge 157:e7ca05fa8600 159 * @{
AnnaBridge 157:e7ca05fa8600 160 */
AnnaBridge 157:e7ca05fa8600 161
AnnaBridge 157:e7ca05fa8600 162 /** @defgroup CRC_LL_EF_Configuration CRC Configuration functions
AnnaBridge 157:e7ca05fa8600 163 * @{
AnnaBridge 157:e7ca05fa8600 164 */
AnnaBridge 157:e7ca05fa8600 165
AnnaBridge 157:e7ca05fa8600 166 /**
AnnaBridge 157:e7ca05fa8600 167 * @brief Reset the CRC calculation unit.
AnnaBridge 157:e7ca05fa8600 168 * @note If Programmable Initial CRC value feature
AnnaBridge 157:e7ca05fa8600 169 * is available, also set the Data Register to the value stored in the
AnnaBridge 157:e7ca05fa8600 170 * CRC_INIT register, otherwise, reset Data Register to its default value.
AnnaBridge 157:e7ca05fa8600 171 * @rmtoll CR RESET LL_CRC_ResetCRCCalculationUnit
AnnaBridge 157:e7ca05fa8600 172 * @param CRCx CRC Instance
AnnaBridge 157:e7ca05fa8600 173 * @retval None
AnnaBridge 157:e7ca05fa8600 174 */
AnnaBridge 157:e7ca05fa8600 175 __STATIC_INLINE void LL_CRC_ResetCRCCalculationUnit(CRC_TypeDef *CRCx)
AnnaBridge 157:e7ca05fa8600 176 {
AnnaBridge 157:e7ca05fa8600 177 SET_BIT(CRCx->CR, CRC_CR_RESET);
AnnaBridge 157:e7ca05fa8600 178 }
AnnaBridge 157:e7ca05fa8600 179
AnnaBridge 157:e7ca05fa8600 180 /**
AnnaBridge 157:e7ca05fa8600 181 * @brief Configure size of the polynomial.
AnnaBridge 157:e7ca05fa8600 182 * @rmtoll CR POLYSIZE LL_CRC_SetPolynomialSize
AnnaBridge 157:e7ca05fa8600 183 * @param CRCx CRC Instance
AnnaBridge 157:e7ca05fa8600 184 * @param PolySize This parameter can be one of the following values:
AnnaBridge 157:e7ca05fa8600 185 * @arg @ref LL_CRC_POLYLENGTH_32B
AnnaBridge 157:e7ca05fa8600 186 * @arg @ref LL_CRC_POLYLENGTH_16B
AnnaBridge 157:e7ca05fa8600 187 * @arg @ref LL_CRC_POLYLENGTH_8B
AnnaBridge 157:e7ca05fa8600 188 * @arg @ref LL_CRC_POLYLENGTH_7B
AnnaBridge 157:e7ca05fa8600 189 * @retval None
AnnaBridge 157:e7ca05fa8600 190 */
AnnaBridge 157:e7ca05fa8600 191 __STATIC_INLINE void LL_CRC_SetPolynomialSize(CRC_TypeDef *CRCx, uint32_t PolySize)
AnnaBridge 157:e7ca05fa8600 192 {
AnnaBridge 157:e7ca05fa8600 193 MODIFY_REG(CRCx->CR, CRC_CR_POLYSIZE, PolySize);
AnnaBridge 157:e7ca05fa8600 194 }
AnnaBridge 157:e7ca05fa8600 195
AnnaBridge 157:e7ca05fa8600 196 /**
AnnaBridge 157:e7ca05fa8600 197 * @brief Return size of the polynomial.
AnnaBridge 157:e7ca05fa8600 198 * @rmtoll CR POLYSIZE LL_CRC_GetPolynomialSize
AnnaBridge 157:e7ca05fa8600 199 * @param CRCx CRC Instance
AnnaBridge 157:e7ca05fa8600 200 * @retval Returned value can be one of the following values:
AnnaBridge 157:e7ca05fa8600 201 * @arg @ref LL_CRC_POLYLENGTH_32B
AnnaBridge 157:e7ca05fa8600 202 * @arg @ref LL_CRC_POLYLENGTH_16B
AnnaBridge 157:e7ca05fa8600 203 * @arg @ref LL_CRC_POLYLENGTH_8B
AnnaBridge 157:e7ca05fa8600 204 * @arg @ref LL_CRC_POLYLENGTH_7B
AnnaBridge 157:e7ca05fa8600 205 */
AnnaBridge 157:e7ca05fa8600 206 __STATIC_INLINE uint32_t LL_CRC_GetPolynomialSize(CRC_TypeDef *CRCx)
AnnaBridge 157:e7ca05fa8600 207 {
AnnaBridge 157:e7ca05fa8600 208 return (uint32_t)(READ_BIT(CRCx->CR, CRC_CR_POLYSIZE));
AnnaBridge 157:e7ca05fa8600 209 }
AnnaBridge 157:e7ca05fa8600 210
AnnaBridge 157:e7ca05fa8600 211 /**
AnnaBridge 157:e7ca05fa8600 212 * @brief Configure the reversal of the bit order of the input data
AnnaBridge 157:e7ca05fa8600 213 * @rmtoll CR REV_IN LL_CRC_SetInputDataReverseMode
AnnaBridge 157:e7ca05fa8600 214 * @param CRCx CRC Instance
AnnaBridge 157:e7ca05fa8600 215 * @param ReverseMode This parameter can be one of the following values:
AnnaBridge 157:e7ca05fa8600 216 * @arg @ref LL_CRC_INDATA_REVERSE_NONE
AnnaBridge 157:e7ca05fa8600 217 * @arg @ref LL_CRC_INDATA_REVERSE_BYTE
AnnaBridge 157:e7ca05fa8600 218 * @arg @ref LL_CRC_INDATA_REVERSE_HALFWORD
AnnaBridge 157:e7ca05fa8600 219 * @arg @ref LL_CRC_INDATA_REVERSE_WORD
AnnaBridge 157:e7ca05fa8600 220 * @retval None
AnnaBridge 157:e7ca05fa8600 221 */
AnnaBridge 157:e7ca05fa8600 222 __STATIC_INLINE void LL_CRC_SetInputDataReverseMode(CRC_TypeDef *CRCx, uint32_t ReverseMode)
AnnaBridge 157:e7ca05fa8600 223 {
AnnaBridge 157:e7ca05fa8600 224 MODIFY_REG(CRCx->CR, CRC_CR_REV_IN, ReverseMode);
AnnaBridge 157:e7ca05fa8600 225 }
AnnaBridge 157:e7ca05fa8600 226
AnnaBridge 157:e7ca05fa8600 227 /**
AnnaBridge 157:e7ca05fa8600 228 * @brief Return type of reversal for input data bit order
AnnaBridge 157:e7ca05fa8600 229 * @rmtoll CR REV_IN LL_CRC_GetInputDataReverseMode
AnnaBridge 157:e7ca05fa8600 230 * @param CRCx CRC Instance
AnnaBridge 157:e7ca05fa8600 231 * @retval Returned value can be one of the following values:
AnnaBridge 157:e7ca05fa8600 232 * @arg @ref LL_CRC_INDATA_REVERSE_NONE
AnnaBridge 157:e7ca05fa8600 233 * @arg @ref LL_CRC_INDATA_REVERSE_BYTE
AnnaBridge 157:e7ca05fa8600 234 * @arg @ref LL_CRC_INDATA_REVERSE_HALFWORD
AnnaBridge 157:e7ca05fa8600 235 * @arg @ref LL_CRC_INDATA_REVERSE_WORD
AnnaBridge 157:e7ca05fa8600 236 */
AnnaBridge 157:e7ca05fa8600 237 __STATIC_INLINE uint32_t LL_CRC_GetInputDataReverseMode(CRC_TypeDef *CRCx)
AnnaBridge 157:e7ca05fa8600 238 {
AnnaBridge 157:e7ca05fa8600 239 return (uint32_t)(READ_BIT(CRCx->CR, CRC_CR_REV_IN));
AnnaBridge 157:e7ca05fa8600 240 }
AnnaBridge 157:e7ca05fa8600 241
AnnaBridge 157:e7ca05fa8600 242 /**
AnnaBridge 157:e7ca05fa8600 243 * @brief Configure the reversal of the bit order of the Output data
AnnaBridge 157:e7ca05fa8600 244 * @rmtoll CR REV_OUT LL_CRC_SetOutputDataReverseMode
AnnaBridge 157:e7ca05fa8600 245 * @param CRCx CRC Instance
AnnaBridge 157:e7ca05fa8600 246 * @param ReverseMode This parameter can be one of the following values:
AnnaBridge 157:e7ca05fa8600 247 * @arg @ref LL_CRC_OUTDATA_REVERSE_NONE
AnnaBridge 157:e7ca05fa8600 248 * @arg @ref LL_CRC_OUTDATA_REVERSE_BIT
AnnaBridge 157:e7ca05fa8600 249 * @retval None
AnnaBridge 157:e7ca05fa8600 250 */
AnnaBridge 157:e7ca05fa8600 251 __STATIC_INLINE void LL_CRC_SetOutputDataReverseMode(CRC_TypeDef *CRCx, uint32_t ReverseMode)
AnnaBridge 157:e7ca05fa8600 252 {
AnnaBridge 157:e7ca05fa8600 253 MODIFY_REG(CRCx->CR, CRC_CR_REV_OUT, ReverseMode);
AnnaBridge 157:e7ca05fa8600 254 }
AnnaBridge 157:e7ca05fa8600 255
AnnaBridge 157:e7ca05fa8600 256 /**
AnnaBridge 157:e7ca05fa8600 257 * @brief Configure the reversal of the bit order of the Output data
AnnaBridge 157:e7ca05fa8600 258 * @rmtoll CR REV_OUT LL_CRC_GetOutputDataReverseMode
AnnaBridge 157:e7ca05fa8600 259 * @param CRCx CRC Instance
AnnaBridge 157:e7ca05fa8600 260 * @retval Returned value can be one of the following values:
AnnaBridge 157:e7ca05fa8600 261 * @arg @ref LL_CRC_OUTDATA_REVERSE_NONE
AnnaBridge 157:e7ca05fa8600 262 * @arg @ref LL_CRC_OUTDATA_REVERSE_BIT
AnnaBridge 157:e7ca05fa8600 263 */
AnnaBridge 157:e7ca05fa8600 264 __STATIC_INLINE uint32_t LL_CRC_GetOutputDataReverseMode(CRC_TypeDef *CRCx)
AnnaBridge 157:e7ca05fa8600 265 {
AnnaBridge 157:e7ca05fa8600 266 return (uint32_t)(READ_BIT(CRCx->CR, CRC_CR_REV_OUT));
AnnaBridge 157:e7ca05fa8600 267 }
AnnaBridge 157:e7ca05fa8600 268
AnnaBridge 157:e7ca05fa8600 269 /**
AnnaBridge 157:e7ca05fa8600 270 * @brief Initialize the Programmable initial CRC value.
AnnaBridge 157:e7ca05fa8600 271 * @note If the CRC size is less than 32 bits, the least significant bits
AnnaBridge 157:e7ca05fa8600 272 * are used to write the correct value
AnnaBridge 157:e7ca05fa8600 273 * @note LL_CRC_DEFAULT_CRC_INITVALUE could be used as value for InitCrc parameter.
AnnaBridge 157:e7ca05fa8600 274 * @rmtoll INIT INIT LL_CRC_SetInitialData
AnnaBridge 157:e7ca05fa8600 275 * @param CRCx CRC Instance
AnnaBridge 157:e7ca05fa8600 276 * @param InitCrc Value to be programmed in Programmable initial CRC value register
AnnaBridge 157:e7ca05fa8600 277 * @retval None
AnnaBridge 157:e7ca05fa8600 278 */
AnnaBridge 157:e7ca05fa8600 279 __STATIC_INLINE void LL_CRC_SetInitialData(CRC_TypeDef *CRCx, uint32_t InitCrc)
AnnaBridge 157:e7ca05fa8600 280 {
AnnaBridge 157:e7ca05fa8600 281 WRITE_REG(CRCx->INIT, InitCrc);
AnnaBridge 157:e7ca05fa8600 282 }
AnnaBridge 157:e7ca05fa8600 283
AnnaBridge 157:e7ca05fa8600 284 /**
AnnaBridge 157:e7ca05fa8600 285 * @brief Return current Initial CRC value.
AnnaBridge 157:e7ca05fa8600 286 * @note If the CRC size is less than 32 bits, the least significant bits
AnnaBridge 157:e7ca05fa8600 287 * are used to read the correct value
AnnaBridge 157:e7ca05fa8600 288 * @rmtoll INIT INIT LL_CRC_GetInitialData
AnnaBridge 157:e7ca05fa8600 289 * @param CRCx CRC Instance
AnnaBridge 157:e7ca05fa8600 290 * @retval Value programmed in Programmable initial CRC value register
AnnaBridge 157:e7ca05fa8600 291 */
AnnaBridge 157:e7ca05fa8600 292 __STATIC_INLINE uint32_t LL_CRC_GetInitialData(CRC_TypeDef *CRCx)
AnnaBridge 157:e7ca05fa8600 293 {
AnnaBridge 157:e7ca05fa8600 294 return (uint32_t)(READ_REG(CRCx->INIT));
AnnaBridge 157:e7ca05fa8600 295 }
AnnaBridge 157:e7ca05fa8600 296
AnnaBridge 157:e7ca05fa8600 297 /**
AnnaBridge 157:e7ca05fa8600 298 * @brief Initialize the Programmable polynomial value
AnnaBridge 157:e7ca05fa8600 299 * (coefficients of the polynomial to be used for CRC calculation).
AnnaBridge 157:e7ca05fa8600 300 * @note LL_CRC_DEFAULT_CRC32_POLY could be used as value for PolynomCoef parameter.
AnnaBridge 157:e7ca05fa8600 301 * @note Please check Reference Manual and existing Errata Sheets,
AnnaBridge 157:e7ca05fa8600 302 * regarding possible limitations for Polynomial values usage.
AnnaBridge 157:e7ca05fa8600 303 * For example, for a polynomial of degree 7, X^7 + X^6 + X^5 + X^2 + 1 is written 0x65
AnnaBridge 157:e7ca05fa8600 304 * @rmtoll POL POL LL_CRC_SetPolynomialCoef
AnnaBridge 157:e7ca05fa8600 305 * @param CRCx CRC Instance
AnnaBridge 157:e7ca05fa8600 306 * @param PolynomCoef Value to be programmed in Programmable Polynomial value register
AnnaBridge 157:e7ca05fa8600 307 * @retval None
AnnaBridge 157:e7ca05fa8600 308 */
AnnaBridge 157:e7ca05fa8600 309 __STATIC_INLINE void LL_CRC_SetPolynomialCoef(CRC_TypeDef *CRCx, uint32_t PolynomCoef)
AnnaBridge 157:e7ca05fa8600 310 {
AnnaBridge 157:e7ca05fa8600 311 WRITE_REG(CRCx->POL, PolynomCoef);
AnnaBridge 157:e7ca05fa8600 312 }
AnnaBridge 157:e7ca05fa8600 313
AnnaBridge 157:e7ca05fa8600 314 /**
AnnaBridge 157:e7ca05fa8600 315 * @brief Return current Programmable polynomial value
AnnaBridge 157:e7ca05fa8600 316 * @note Please check Reference Manual and existing Errata Sheets,
AnnaBridge 157:e7ca05fa8600 317 * regarding possible limitations for Polynomial values usage.
AnnaBridge 157:e7ca05fa8600 318 * For example, for a polynomial of degree 7, X^7 + X^6 + X^5 + X^2 + 1 is written 0x65
AnnaBridge 157:e7ca05fa8600 319 * @rmtoll POL POL LL_CRC_GetPolynomialCoef
AnnaBridge 157:e7ca05fa8600 320 * @param CRCx CRC Instance
AnnaBridge 157:e7ca05fa8600 321 * @retval Value programmed in Programmable Polynomial value register
AnnaBridge 157:e7ca05fa8600 322 */
AnnaBridge 157:e7ca05fa8600 323 __STATIC_INLINE uint32_t LL_CRC_GetPolynomialCoef(CRC_TypeDef *CRCx)
AnnaBridge 157:e7ca05fa8600 324 {
AnnaBridge 157:e7ca05fa8600 325 return (uint32_t)(READ_REG(CRCx->POL));
AnnaBridge 157:e7ca05fa8600 326 }
AnnaBridge 157:e7ca05fa8600 327
AnnaBridge 157:e7ca05fa8600 328 /**
AnnaBridge 157:e7ca05fa8600 329 * @}
AnnaBridge 157:e7ca05fa8600 330 */
AnnaBridge 157:e7ca05fa8600 331
AnnaBridge 157:e7ca05fa8600 332 /** @defgroup CRC_LL_EF_Data_Management Data_Management
AnnaBridge 157:e7ca05fa8600 333 * @{
AnnaBridge 157:e7ca05fa8600 334 */
AnnaBridge 157:e7ca05fa8600 335
AnnaBridge 157:e7ca05fa8600 336 /**
AnnaBridge 157:e7ca05fa8600 337 * @brief Write given 32-bit data to the CRC calculator
AnnaBridge 157:e7ca05fa8600 338 * @rmtoll DR DR LL_CRC_FeedData32
AnnaBridge 157:e7ca05fa8600 339 * @param CRCx CRC Instance
AnnaBridge 157:e7ca05fa8600 340 * @param InData value to be provided to CRC calculator between between Min_Data=0 and Max_Data=0xFFFFFFFF
AnnaBridge 157:e7ca05fa8600 341 * @retval None
AnnaBridge 157:e7ca05fa8600 342 */
AnnaBridge 157:e7ca05fa8600 343 __STATIC_INLINE void LL_CRC_FeedData32(CRC_TypeDef *CRCx, uint32_t InData)
AnnaBridge 157:e7ca05fa8600 344 {
AnnaBridge 157:e7ca05fa8600 345 WRITE_REG(CRCx->DR, InData);
AnnaBridge 157:e7ca05fa8600 346 }
AnnaBridge 157:e7ca05fa8600 347
AnnaBridge 157:e7ca05fa8600 348 /**
AnnaBridge 157:e7ca05fa8600 349 * @brief Write given 16-bit data to the CRC calculator
AnnaBridge 157:e7ca05fa8600 350 * @rmtoll DR DR LL_CRC_FeedData16
AnnaBridge 157:e7ca05fa8600 351 * @param CRCx CRC Instance
AnnaBridge 157:e7ca05fa8600 352 * @param InData 16 bit value to be provided to CRC calculator between between Min_Data=0 and Max_Data=0xFFFF
AnnaBridge 157:e7ca05fa8600 353 * @retval None
AnnaBridge 157:e7ca05fa8600 354 */
AnnaBridge 157:e7ca05fa8600 355 __STATIC_INLINE void LL_CRC_FeedData16(CRC_TypeDef *CRCx, uint16_t InData)
AnnaBridge 157:e7ca05fa8600 356 {
AnnaBridge 157:e7ca05fa8600 357 *(uint16_t __IO *)(&CRCx->DR) = (uint16_t) InData;
AnnaBridge 157:e7ca05fa8600 358 }
AnnaBridge 157:e7ca05fa8600 359
AnnaBridge 157:e7ca05fa8600 360 /**
AnnaBridge 157:e7ca05fa8600 361 * @brief Write given 8-bit data to the CRC calculator
AnnaBridge 157:e7ca05fa8600 362 * @rmtoll DR DR LL_CRC_FeedData8
AnnaBridge 157:e7ca05fa8600 363 * @param CRCx CRC Instance
AnnaBridge 157:e7ca05fa8600 364 * @param InData 8 bit value to be provided to CRC calculator between between Min_Data=0 and Max_Data=0xFF
AnnaBridge 157:e7ca05fa8600 365 * @retval None
AnnaBridge 157:e7ca05fa8600 366 */
AnnaBridge 157:e7ca05fa8600 367 __STATIC_INLINE void LL_CRC_FeedData8(CRC_TypeDef *CRCx, uint8_t InData)
AnnaBridge 157:e7ca05fa8600 368 {
AnnaBridge 157:e7ca05fa8600 369 *(uint8_t __IO *)(&CRCx->DR) = (uint8_t) InData;
AnnaBridge 157:e7ca05fa8600 370 }
AnnaBridge 157:e7ca05fa8600 371
AnnaBridge 157:e7ca05fa8600 372 /**
AnnaBridge 157:e7ca05fa8600 373 * @brief Return current CRC calculation result. 32 bits value is returned.
AnnaBridge 157:e7ca05fa8600 374 * @rmtoll DR DR LL_CRC_ReadData32
AnnaBridge 157:e7ca05fa8600 375 * @param CRCx CRC Instance
AnnaBridge 157:e7ca05fa8600 376 * @retval Current CRC calculation result as stored in CRC_DR register (32 bits).
AnnaBridge 157:e7ca05fa8600 377 */
AnnaBridge 157:e7ca05fa8600 378 __STATIC_INLINE uint32_t LL_CRC_ReadData32(CRC_TypeDef *CRCx)
AnnaBridge 157:e7ca05fa8600 379 {
AnnaBridge 157:e7ca05fa8600 380 return (uint32_t)(READ_REG(CRCx->DR));
AnnaBridge 157:e7ca05fa8600 381 }
AnnaBridge 157:e7ca05fa8600 382
AnnaBridge 157:e7ca05fa8600 383 /**
AnnaBridge 157:e7ca05fa8600 384 * @brief Return current CRC calculation result. 16 bits value is returned.
AnnaBridge 157:e7ca05fa8600 385 * @note This function is expected to be used in a 16 bits CRC polynomial size context.
AnnaBridge 157:e7ca05fa8600 386 * @rmtoll DR DR LL_CRC_ReadData16
AnnaBridge 157:e7ca05fa8600 387 * @param CRCx CRC Instance
AnnaBridge 157:e7ca05fa8600 388 * @retval Current CRC calculation result as stored in CRC_DR register (16 bits).
AnnaBridge 157:e7ca05fa8600 389 */
AnnaBridge 157:e7ca05fa8600 390 __STATIC_INLINE uint16_t LL_CRC_ReadData16(CRC_TypeDef *CRCx)
AnnaBridge 157:e7ca05fa8600 391 {
AnnaBridge 157:e7ca05fa8600 392 return (uint16_t)READ_REG(CRCx->DR);
AnnaBridge 157:e7ca05fa8600 393 }
AnnaBridge 157:e7ca05fa8600 394
AnnaBridge 157:e7ca05fa8600 395 /**
AnnaBridge 157:e7ca05fa8600 396 * @brief Return current CRC calculation result. 8 bits value is returned.
AnnaBridge 157:e7ca05fa8600 397 * @note This function is expected to be used in a 8 bits CRC polynomial size context.
AnnaBridge 157:e7ca05fa8600 398 * @rmtoll DR DR LL_CRC_ReadData8
AnnaBridge 157:e7ca05fa8600 399 * @param CRCx CRC Instance
AnnaBridge 157:e7ca05fa8600 400 * @retval Current CRC calculation result as stored in CRC_DR register (8 bits).
AnnaBridge 157:e7ca05fa8600 401 */
AnnaBridge 157:e7ca05fa8600 402 __STATIC_INLINE uint8_t LL_CRC_ReadData8(CRC_TypeDef *CRCx)
AnnaBridge 157:e7ca05fa8600 403 {
AnnaBridge 157:e7ca05fa8600 404 return (uint8_t)READ_REG(CRCx->DR);
AnnaBridge 157:e7ca05fa8600 405 }
AnnaBridge 157:e7ca05fa8600 406
AnnaBridge 157:e7ca05fa8600 407 /**
AnnaBridge 157:e7ca05fa8600 408 * @brief Return current CRC calculation result. 7 bits value is returned.
AnnaBridge 157:e7ca05fa8600 409 * @note This function is expected to be used in a 7 bits CRC polynomial size context.
AnnaBridge 157:e7ca05fa8600 410 * @rmtoll DR DR LL_CRC_ReadData7
AnnaBridge 157:e7ca05fa8600 411 * @param CRCx CRC Instance
AnnaBridge 157:e7ca05fa8600 412 * @retval Current CRC calculation result as stored in CRC_DR register (7 bits).
AnnaBridge 157:e7ca05fa8600 413 */
AnnaBridge 157:e7ca05fa8600 414 __STATIC_INLINE uint8_t LL_CRC_ReadData7(CRC_TypeDef *CRCx)
AnnaBridge 157:e7ca05fa8600 415 {
AnnaBridge 157:e7ca05fa8600 416 return (uint8_t)(READ_REG(CRCx->DR) & 0x7FU);
AnnaBridge 157:e7ca05fa8600 417 }
AnnaBridge 157:e7ca05fa8600 418
AnnaBridge 157:e7ca05fa8600 419 /**
AnnaBridge 157:e7ca05fa8600 420 * @brief Return data stored in the Independent Data(IDR) register.
AnnaBridge 157:e7ca05fa8600 421 * @note This register can be used as a temporary storage location for one byte.
AnnaBridge 157:e7ca05fa8600 422 * @rmtoll IDR IDR LL_CRC_Read_IDR
AnnaBridge 157:e7ca05fa8600 423 * @param CRCx CRC Instance
AnnaBridge 157:e7ca05fa8600 424 * @retval Value stored in CRC_IDR register (General-purpose 8-bit data register).
AnnaBridge 157:e7ca05fa8600 425 */
AnnaBridge 157:e7ca05fa8600 426 __STATIC_INLINE uint32_t LL_CRC_Read_IDR(CRC_TypeDef *CRCx)
AnnaBridge 157:e7ca05fa8600 427 {
AnnaBridge 157:e7ca05fa8600 428 return (uint32_t)(READ_REG(CRCx->IDR));
AnnaBridge 157:e7ca05fa8600 429 }
AnnaBridge 157:e7ca05fa8600 430
AnnaBridge 157:e7ca05fa8600 431 /**
AnnaBridge 157:e7ca05fa8600 432 * @brief Store data in the Independent Data(IDR) register.
AnnaBridge 157:e7ca05fa8600 433 * @note This register can be used as a temporary storage location for one byte.
AnnaBridge 157:e7ca05fa8600 434 * @rmtoll IDR IDR LL_CRC_Write_IDR
AnnaBridge 157:e7ca05fa8600 435 * @param CRCx CRC Instance
AnnaBridge 157:e7ca05fa8600 436 * @param InData value to be stored in CRC_IDR register (8-bit) between between Min_Data=0 and Max_Data=0xFF
AnnaBridge 157:e7ca05fa8600 437 * @retval None
AnnaBridge 157:e7ca05fa8600 438 */
AnnaBridge 157:e7ca05fa8600 439 __STATIC_INLINE void LL_CRC_Write_IDR(CRC_TypeDef *CRCx, uint32_t InData)
AnnaBridge 157:e7ca05fa8600 440 {
AnnaBridge 157:e7ca05fa8600 441 *((uint8_t __IO *)(&CRCx->IDR)) = (uint8_t) InData;
AnnaBridge 157:e7ca05fa8600 442 }
AnnaBridge 157:e7ca05fa8600 443 /**
AnnaBridge 157:e7ca05fa8600 444 * @}
AnnaBridge 157:e7ca05fa8600 445 */
AnnaBridge 157:e7ca05fa8600 446
AnnaBridge 157:e7ca05fa8600 447 #if defined(USE_FULL_LL_DRIVER)
AnnaBridge 157:e7ca05fa8600 448 /** @defgroup CRC_LL_EF_Init Initialization and de-initialization functions
AnnaBridge 157:e7ca05fa8600 449 * @{
AnnaBridge 157:e7ca05fa8600 450 */
AnnaBridge 157:e7ca05fa8600 451
AnnaBridge 157:e7ca05fa8600 452 ErrorStatus LL_CRC_DeInit(CRC_TypeDef *CRCx);
AnnaBridge 157:e7ca05fa8600 453
AnnaBridge 157:e7ca05fa8600 454 /**
AnnaBridge 157:e7ca05fa8600 455 * @}
AnnaBridge 157:e7ca05fa8600 456 */
AnnaBridge 157:e7ca05fa8600 457 #endif /* USE_FULL_LL_DRIVER */
AnnaBridge 157:e7ca05fa8600 458
AnnaBridge 157:e7ca05fa8600 459 /**
AnnaBridge 157:e7ca05fa8600 460 * @}
AnnaBridge 157:e7ca05fa8600 461 */
AnnaBridge 157:e7ca05fa8600 462
AnnaBridge 157:e7ca05fa8600 463 /**
AnnaBridge 157:e7ca05fa8600 464 * @}
AnnaBridge 157:e7ca05fa8600 465 */
AnnaBridge 157:e7ca05fa8600 466
AnnaBridge 157:e7ca05fa8600 467 #endif /* defined(CRC) */
AnnaBridge 157:e7ca05fa8600 468
AnnaBridge 157:e7ca05fa8600 469 /**
AnnaBridge 157:e7ca05fa8600 470 * @}
AnnaBridge 157:e7ca05fa8600 471 */
AnnaBridge 157:e7ca05fa8600 472
AnnaBridge 157:e7ca05fa8600 473 #ifdef __cplusplus
AnnaBridge 157:e7ca05fa8600 474 }
AnnaBridge 157:e7ca05fa8600 475 #endif
AnnaBridge 157:e7ca05fa8600 476
AnnaBridge 157:e7ca05fa8600 477 #endif /* __STM32L0xx_LL_CRC_H */
AnnaBridge 157:e7ca05fa8600 478
AnnaBridge 157:e7ca05fa8600 479 /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/