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- /**************************************************************************//**
- * @file crc.h
- * @version V1.00
- * $Revision: 2 $
- * $Date: 15/12/01 9:57a $
- * @brief NUC472/NUC442 series CRC driver header file
- *
- * @note
- * Copyright (C) 2015 Nuvoton Technology Corp. All rights reserved.
- *****************************************************************************/
- #ifndef __CRC_H__
- #define __CRC_H__
- #ifdef __cplusplus
- extern "C"
- {
- #endif
- /** @addtogroup NUC472_442_Device_Driver NUC472/NUC442 Device Driver
- @{
- */
- /** @addtogroup NUC472_442_CRC_Driver CRC Driver
- @{
- */
- /** @addtogroup NUC472_442_CRC_EXPORTED_CONSTANTS CRC Exported Constants
- @{
- */
- /*---------------------------------------------------------------------------------------------------------*/
- /* CRC Polynomial Mode Constant Definitions */
- /*---------------------------------------------------------------------------------------------------------*/
- #define CRC_CCITT 0x00000000UL /*!<CRC Polynomial Mode - CCITT */
- #define CRC_8 0x40000000UL /*!<CRC Polynomial Mode - CRC8 */
- #define CRC_16 0x80000000UL /*!<CRC Polynomial Mode - CRC16 */
- #define CRC_32 0xC0000000UL /*!<CRC Polynomial Mode - CRC32 */
- /*---------------------------------------------------------------------------------------------------------*/
- /* Checksum, Write data Constant Definitions */
- /*---------------------------------------------------------------------------------------------------------*/
- #define CRC_CHECKSUM_COM 0x08000000UL /*!<CRC Checksum Complement */
- #define CRC_CHECKSUM_RVS 0x02000000UL /*!<CRC Checksum Reverse */
- #define CRC_WDATA_COM 0x04000000UL /*!<CRC Write Data Complement */
- #define CRC_WDATA_RVS 0x01000000UL /*!<CRC Write Data Reverse */
- /*---------------------------------------------------------------------------------------------------------*/
- /* CPU Write Data Length Constant Definitions */
- /*---------------------------------------------------------------------------------------------------------*/
- #define CRC_CPU_WDATA_8 0x00000000UL /*!<CRC CPU Write Data length is 8-bit */
- #define CRC_CPU_WDATA_16 0x10000000UL /*!<CRC CPU Write Data length is 16-bit */
- #define CRC_CPU_WDATA_32 0x20000000UL /*!<CRC CPU Write Data length is 32-bit */
- /*@}*/ /* end of group NUC472_442_CRC_EXPORTED_CONSTANTS */
- /** @addtogroup NUC472_442_CRC_EXPORTED_FUNCTIONS CRC Exported Functions
- @{
- */
- /**
- * @brief Set CRC Seed Value
- *
- * @param[in] u32Seed Seed value
- *
- * @return None
- *
- * @details This macro is used to set CRC seed value.
- *
- * @note User must to perform CRC_RST(CRC_CTL[1] CRC Engine Reset) to reload the new seed value
- * to CRC controller.
- */
- #define CRC_SET_SEED(u32Seed) { CRC->SEED = (u32Seed); CRC->CTL |= CRC_CTL_CRCRST_Msk; }
- /**
- * @brief Get CRC Seed Value
- *
- * @param None
- *
- * @return CRC seed value
- *
- * @details This macro gets the current CRC seed value.
- */
- #define CRC_GET_SEED() (CRC->SEED)
- /**
- * @brief CRC Write Data
- *
- * @param[in] u32Data Write data
- *
- * @return None
- *
- * @details User can write data directly to CRC Write Data Register(CRC_DAT) by this macro to perform CRC operation.
- */
- #define CRC_WRITE_DATA(u32Data) (CRC->DAT = (u32Data))
- void CRC_Open(uint32_t u32Mode, uint32_t u32Attribute, uint32_t u32Seed, uint32_t u32DataLen);
- uint32_t CRC_GetChecksum(void);
- /*@}*/ /* end of group NUC472_442_CRC_EXPORTED_FUNCTIONS */
- /*@}*/ /* end of group NUC472_442_CRC_Driver */
- /*@}*/ /* end of group NUC472_442_Device_Driver */
- #ifdef __cplusplus
- }
- #endif
- #endif //__CRC_H__
- /*** (C) COPYRIGHT 2015 Nuvoton Technology Corp. ***/
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