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  1. /**
  2. ******************************************************************************
  3. * @file stm32l4xx_hal_crc_ex.h
  4. * @author MCD Application Team
  5. * @version V1.7.2
  6. * @date 16-June-2017
  7. * @brief Header file of CRC HAL extended module.
  8. ******************************************************************************
  9. * @attention
  10. *
  11. * <h2><center>&copy; COPYRIGHT(c) 2017 STMicroelectronics</center></h2>
  12. *
  13. * Redistribution and use in source and binary forms, with or without modification,
  14. * are permitted provided that the following conditions are met:
  15. * 1. Redistributions of source code must retain the above copyright notice,
  16. * this list of conditions and the following disclaimer.
  17. * 2. Redistributions in binary form must reproduce the above copyright notice,
  18. * this list of conditions and the following disclaimer in the documentation
  19. * and/or other materials provided with the distribution.
  20. * 3. Neither the name of STMicroelectronics nor the names of its contributors
  21. * may be used to endorse or promote products derived from this software
  22. * without specific prior written permission.
  23. *
  24. * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
  25. * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  26. * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
  27. * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
  28. * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  29. * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
  30. * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
  31. * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
  32. * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  33. * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  34. *
  35. ******************************************************************************
  36. */
  37. /* Define to prevent recursive inclusion -------------------------------------*/
  38. #ifndef __STM32L4xx_HAL_CRC_EX_H
  39. #define __STM32L4xx_HAL_CRC_EX_H
  40. #ifdef __cplusplus
  41. extern "C" {
  42. #endif
  43. /* Includes ------------------------------------------------------------------*/
  44. #include "stm32l4xx_hal_def.h"
  45. /** @addtogroup STM32L4xx_HAL_Driver
  46. * @{
  47. */
  48. /** @addtogroup CRCEx
  49. * @{
  50. */
  51. /* Exported types ------------------------------------------------------------*/
  52. /* Exported constants --------------------------------------------------------*/
  53. /** @defgroup CRCEx_Exported_Constants CRCEx Exported Constants
  54. * @{
  55. */
  56. /** @defgroup CRCEx_Input_Data_Inversion Input Data Inversion Modes
  57. * @{
  58. */
  59. #define CRC_INPUTDATA_INVERSION_NONE ((uint32_t)0x00000000) /*!< No input data inversion */
  60. #define CRC_INPUTDATA_INVERSION_BYTE ((uint32_t)CRC_CR_REV_IN_0) /*!< Byte-wise input data inversion */
  61. #define CRC_INPUTDATA_INVERSION_HALFWORD ((uint32_t)CRC_CR_REV_IN_1) /*!< HalfWord-wise input data inversion */
  62. #define CRC_INPUTDATA_INVERSION_WORD ((uint32_t)CRC_CR_REV_IN) /*!< Word-wise input data inversion */
  63. /**
  64. * @}
  65. */
  66. /** @defgroup CRCEx_Output_Data_Inversion Output Data Inversion Modes
  67. * @{
  68. */
  69. #define CRC_OUTPUTDATA_INVERSION_DISABLE ((uint32_t)0x00000000) /*!< No output data inversion */
  70. #define CRC_OUTPUTDATA_INVERSION_ENABLE ((uint32_t)CRC_CR_REV_OUT) /*!< Bit-wise output data inversion */
  71. /**
  72. * @}
  73. */
  74. /**
  75. * @}
  76. */
  77. /* Exported macro ------------------------------------------------------------*/
  78. /** @defgroup CRCEx_Exported_Macros CRCEx Exported Macros
  79. * @{
  80. */
  81. /**
  82. * @brief Set CRC output reversal
  83. * @param __HANDLE__: CRC handle
  84. * @retval None
  85. */
  86. #define __HAL_CRC_OUTPUTREVERSAL_ENABLE(__HANDLE__) ((__HANDLE__)->Instance->CR |= CRC_CR_REV_OUT)
  87. /**
  88. * @brief Unset CRC output reversal
  89. * @param __HANDLE__: CRC handle
  90. * @retval None
  91. */
  92. #define __HAL_CRC_OUTPUTREVERSAL_DISABLE(__HANDLE__) ((__HANDLE__)->Instance->CR &= ~(CRC_CR_REV_OUT))
  93. /**
  94. * @brief Set CRC non-default polynomial
  95. * @param __HANDLE__: CRC handle
  96. * @param __POLYNOMIAL__: 7, 8, 16 or 32-bit polynomial
  97. * @retval None
  98. */
  99. #define __HAL_CRC_POLYNOMIAL_CONFIG(__HANDLE__, __POLYNOMIAL__) ((__HANDLE__)->Instance->POL = (__POLYNOMIAL__))
  100. /**
  101. * @}
  102. */
  103. /* Private macros --------------------------------------------------------*/
  104. /** @addtogroup CRCEx_Private_Macros CRCEx Private Macros
  105. * @{
  106. */
  107. #define IS_CRC_INPUTDATA_INVERSION_MODE(MODE) (((MODE) == CRC_INPUTDATA_INVERSION_NONE) || \
  108. ((MODE) == CRC_INPUTDATA_INVERSION_BYTE) || \
  109. ((MODE) == CRC_INPUTDATA_INVERSION_HALFWORD) || \
  110. ((MODE) == CRC_INPUTDATA_INVERSION_WORD))
  111. #define IS_CRC_OUTPUTDATA_INVERSION_MODE(MODE) (((MODE) == CRC_OUTPUTDATA_INVERSION_DISABLE) || \
  112. ((MODE) == CRC_OUTPUTDATA_INVERSION_ENABLE))
  113. /**
  114. * @}
  115. */
  116. /* Exported functions --------------------------------------------------------*/
  117. /** @addtogroup CRCEx_Exported_Functions CRC Extended Exported Functions
  118. * @{
  119. */
  120. /** @addtogroup CRCEx_Exported_Functions_Group1 Extended Initialization/de-initialization functions
  121. * @{
  122. */
  123. /* Initialization and de-initialization functions ****************************/
  124. HAL_StatusTypeDef HAL_CRCEx_Polynomial_Set(CRC_HandleTypeDef *hcrc, uint32_t Pol, uint32_t PolyLength);
  125. HAL_StatusTypeDef HAL_CRCEx_Input_Data_Reverse(CRC_HandleTypeDef *hcrc, uint32_t InputReverseMode);
  126. HAL_StatusTypeDef HAL_CRCEx_Output_Data_Reverse(CRC_HandleTypeDef *hcrc, uint32_t OutputReverseMode);
  127. /**
  128. * @}
  129. */
  130. /**
  131. * @}
  132. */
  133. /**
  134. * @}
  135. */
  136. /**
  137. * @}
  138. */
  139. #ifdef __cplusplus
  140. }
  141. #endif
  142. #endif /* __STM32L4xx_HAL_CRC_EX_H */
  143. /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/