2 ******************************************************************************
3 * @file stm32l0xx_hal_crc_ex.h
4 * @author MCD Application Team
6 * @date 06-February-2015
7 * @brief Header file of CRC HAL extension module.
8 ******************************************************************************
11 * <h2><center>© COPYRIGHT(c) 2015 STMicroelectronics</center></h2>
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.
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.
35 ******************************************************************************
38 /* Define to prevent recursive inclusion -------------------------------------*/
39 #ifndef __STM32L0xx_HAL_CRC_EX_H
40 #define __STM32L0xx_HAL_CRC_EX_H
46 /* Includes ------------------------------------------------------------------*/
47 #include "stm32l0xx_hal_def.h"
49 /** @addtogroup STM32L0xx_HAL_Driver
53 /** @defgroup CRCEx CRCEx
57 /* Exported types ------------------------------------------------------------*/
58 /* Exported constants --------------------------------------------------------*/
60 /** @defgroup CRCEx_Exported_Constants CRC Extended exported constants
64 /** @defgroup CRCEx_Input_Data_Inversion CRC Extended input data inversion modes
67 #define CRC_INPUTDATA_INVERSION_NONE ((uint32_t)0x00000000)
68 #define CRC_INPUTDATA_INVERSION_BYTE ((uint32_t)CRC_CR_REV_IN_0)
69 #define CRC_INPUTDATA_INVERSION_HALFWORD ((uint32_t)CRC_CR_REV_IN_1)
70 #define CRC_INPUTDATA_INVERSION_WORD ((uint32_t)CRC_CR_REV_IN)
72 #define IS_CRC_INPUTDATA_INVERSION_MODE(__MODE__) (((__MODE__) == CRC_INPUTDATA_INVERSION_NONE) || \
73 ((__MODE__) == CRC_INPUTDATA_INVERSION_BYTE) || \
74 ((__MODE__) == CRC_INPUTDATA_INVERSION_HALFWORD) || \
75 ((__MODE__) == CRC_INPUTDATA_INVERSION_WORD))
80 /** @defgroup CRCEx_Output_Data_Inversion CRC Extended output data inversion modes
83 #define CRC_OUTPUTDATA_INVERSION_DISABLE ((uint32_t)0x00000000)
84 #define CRC_OUTPUTDATA_INVERSION_ENABLE ((uint32_t)CRC_CR_REV_OUT)
86 #define IS_CRC_OUTPUTDATA_INVERSION_MODE(__MODE__) (((__MODE__) == CRC_OUTPUTDATA_INVERSION_DISABLE) || \
87 ((__MODE__) == CRC_OUTPUTDATA_INVERSION_ENABLE))
96 /* Exported macro ------------------------------------------------------------*/
98 /** @defgroup CRCEx_Exported_Macros CRC Extended exported macros
103 * @brief Set CRC output reversal
104 * @param __HANDLE__ : CRC handle
107 #define __HAL_CRC_OUTPUTREVERSAL_ENABLE(__HANDLE__) ((__HANDLE__)->Instance->CR |= CRC_CR_REV_OUT)
110 * @brief Unset CRC output reversal
111 * @param __HANDLE__ : CRC handle
114 #define __HAL_CRC_OUTPUTREVERSAL_DISABLE(__HANDLE__) ((__HANDLE__)->Instance->CR &= ~(CRC_CR_REV_OUT))
117 * @brief Set CRC non-default polynomial
118 * @param __HANDLE__ : CRC handle
119 * @param __POLYNOMIAL__: 7, 8, 16 or 32-bit polynomial
122 #define __HAL_CRC_POLYNOMIAL_CONFIG(__HANDLE__, __POLYNOMIAL__) ((__HANDLE__)->Instance->POL = (__POLYNOMIAL__))
129 /** @defgroup CRCEx_Exported_Functions CRC Extended Exported Functions
133 /** @defgroup CRCEx_Exported_Functions_Group1 Extended CRC features functions
136 /* Exported functions --------------------------------------------------------*/
137 /* Initialization and de-initialization functions ****************************/
138 HAL_StatusTypeDef HAL_CRCEx_Polynomial_Set(CRC_HandleTypeDef *hcrc, uint32_t Pol, uint32_t PolyLength);
139 HAL_StatusTypeDef HAL_CRCEx_Input_Data_Reverse(CRC_HandleTypeDef *hcrc, uint32_t InputReverseMode);
140 HAL_StatusTypeDef HAL_CRCEx_Output_Data_Reverse(CRC_HandleTypeDef *hcrc, uint32_t OutputReverseMode);
142 /* Peripheral Control functions ***********************************************/
143 /* Peripheral State and Error functions ***************************************/
166 #endif /* __STM32L0xx_HAL_CRC_EX_H */
168 /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/