crc.h

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/**************************************************************************/
#ifndef __CRC_H__
#define __CRC_H__

#ifdef __cplusplus
extern "C"
{
#endif


/*---------------------------------------------------------------------------------------------------------*/
/*  CRC Polynomial Mode Constant Definitions                                                               */
/*---------------------------------------------------------------------------------------------------------*/
#define CRC_CCITT           (0UL << CRC_CTL_CRCMODE_Pos) 
#define CRC_8               (1UL << CRC_CTL_CRCMODE_Pos) 
#define CRC_16              (2UL << CRC_CTL_CRCMODE_Pos) 
#define CRC_32              (3UL << CRC_CTL_CRCMODE_Pos) 
/*---------------------------------------------------------------------------------------------------------*/
/*  Checksum, Write data Constant Definitions                                                              */
/*---------------------------------------------------------------------------------------------------------*/
#define CRC_CHECKSUM_COM    (CRC_CTL_CHKSFMT_Msk)       
#define CRC_CHECKSUM_RVS    (CRC_CTL_CHKSREV_Msk)       
#define CRC_WDATA_COM       (CRC_CTL_DATFMT_Msk)        
#define CRC_WDATA_RVS       (CRC_CTL_DATREV_Msk)        
/*---------------------------------------------------------------------------------------------------------*/
/*  CPU Write Data Length Constant Definitions                                                             */
/*---------------------------------------------------------------------------------------------------------*/
#define CRC_CPU_WDATA_8     (0UL << CRC_CTL_DATLEN_Pos) 
#define CRC_CPU_WDATA_16    (1UL << CRC_CTL_DATLEN_Pos) 
#define CRC_CPU_WDATA_32    (2UL << CRC_CTL_DATLEN_Pos) 
 /* end of group CRC_EXPORTED_CONSTANTS */


#define CRC_SET_SEED(u32Seed)   do{ CRC->SEED = (u32Seed); CRC->CTL |= CRC_CTL_CHKSINIT_Msk; }while(0)

#define CRC_GET_SEED()          (CRC->SEED)

#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 2016 Nuvoton Technology Corp. ***/