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/**************************************************************************//**
* @file crc.h
* @version V3.00
* $Revision: 6 $
* $Date: 15/08/11 10:26a $
* @brief M451 series CRC driver header file
*
* @note
* Copyright (C) 2013~2015 Nuvoton Technology Corp. All rights reserved.
*****************************************************************************/
#ifndef __CRC_H__
#define __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 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 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_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 CRC_EXPORTED_FUNCTIONS */
/*@}*/ /* end of group CRC_Driver */
/*@}*/ /* end of group Standard_Driver */
#ifdef __cplusplus
}
#endif
#endif //__CRC_H__
/*** (C) COPYRIGHT 2013~2015 Nuvoton Technology Corp. ***/
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