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/******************************************************************************
* @file nu_crc.h
* @version V1.00
* $Revision: 9 $
* $Date: 18/07/09 4:18p $
* @brief M031 series CRC driver header file
*
* @note
* SPDX-License-Identifier: Apache-2.0
* Copyright (C) 2018 Nuvoton Technology Corp. All rights reserved.
****************************************************************************/
#ifndef __NU_CRC_H__
#define __NU_CRC_H__
#ifdef __cplusplus
extern "C"
{
#endif
/** @addtogroup Standard_Driver Standard Driver
@{
*/
/** @addtogroup CRC_Driver CRC Driver
@{
*/
/** @addtogroup CRC_EXPORTED_CONSTANTS CRC Exported Constants
@{
*/
/*---------------------------------------------------------------------------------------------------------*/
/* CRC Polynomial Mode Constant Definitions */
/*---------------------------------------------------------------------------------------------------------*/
#define CRC_CCITT (0UL << CRC_CTL_CRCMODE_Pos) /*!<CRC Polynomial Mode - CCITT \hideinitializer */
#define CRC_8 (1UL << CRC_CTL_CRCMODE_Pos) /*!<CRC Polynomial Mode - CRC8 \hideinitializer */
#define CRC_16 (2UL << CRC_CTL_CRCMODE_Pos) /*!<CRC Polynomial Mode - CRC16 \hideinitializer */
#define CRC_32 (3UL << CRC_CTL_CRCMODE_Pos) /*!<CRC Polynomial Mode - CRC32 \hideinitializer */
/*---------------------------------------------------------------------------------------------------------*/
/* Checksum, Write data Constant Definitions */
/*---------------------------------------------------------------------------------------------------------*/
#define CRC_CHECKSUM_COM (CRC_CTL_CHKSFMT_Msk) /*!<CRC Checksum Complement \hideinitializer */
#define CRC_CHECKSUM_RVS (CRC_CTL_CHKSREV_Msk) /*!<CRC Checksum Reverse \hideinitializer */
#define CRC_WDATA_COM (CRC_CTL_DATFMT_Msk) /*!<CRC Write Data Complement \hideinitializer */
#define CRC_WDATA_RVS (CRC_CTL_DATREV_Msk) /*!<CRC Write Data Reverse \hideinitializer */
/*---------------------------------------------------------------------------------------------------------*/
/* Write Data Length Constant Definitions */
/*---------------------------------------------------------------------------------------------------------*/
#define CRC_WDATA_8 (0UL << CRC_CTL_DATLEN_Pos) /*!<CRC Write Data length is 8-bit \hideinitializer */
#define CRC_WDATA_16 (1UL << CRC_CTL_DATLEN_Pos) /*!<CRC Write Data length is 16-bit \hideinitializer */
#define CRC_WDATA_32 (2UL << CRC_CTL_DATLEN_Pos) /*!<CRC Write Data length is 32-bit \hideinitializer */
/*@}*/ /* end of group CRC_EXPORTED_CONSTANTS */
/** @addtogroup 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_CHKSINIT(CRC_CTL[1] CRC Engine Reset) to reload the new seed value
* to CRC controller.
* \hideinitializer
*/
#define CRC_SET_SEED(u32Seed) do{ CRC->SEED = (u32Seed); CRC->CTL |= CRC_CTL_CHKSINIT_Msk; }while(0)
/**
* @brief Get CRC Seed Value
*
* @param None
*
* @return CRC seed value
*
* @details This macro gets the current CRC seed value.
* \hideinitializer
*/
#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.
* \hideinitializer
*/
#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 CRC_EXPORTED_FUNCTIONS */
/*@}*/ /* end of group CRC_Driver */
/*@}*/ /* end of group Standard_Driver */
#ifdef __cplusplus
}
#endif
#endif
/*** (C) COPYRIGHT 2018 Nuvoton Technology Corp. ***/
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