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/**********************************************************************
* $Id$ lpc_crc.h 2011-06-02
*//**
* @file lpc_crc.h
* @brief Contains all macro definitions and function prototypes
* support for CRC firmware library on LPC
* @version 1.0
* @date 02. June. 2011
* @author NXP MCU SW Application Team
*
* Copyright(C) 2011, NXP Semiconductor
* All rights reserved.
*
***********************************************************************
* Software that is described herein is for illustrative purposes only
* which provides customers with programming information regarding the
* products. This software is supplied "AS IS" without any warranties.
* NXP Semiconductors assumes no responsibility or liability for the
* use of the software, conveys no license or title under any patent,
* copyright, or mask work right to the product. NXP Semiconductors
* reserves the right to make changes in the software without
* notification. NXP Semiconductors also make no representation or
* warranty that such application will be suitable for the specified
* use without further testing or modification.
* Permission to use, copy, modify, and distribute this software and its
* documentation is hereby granted, under NXP Semiconductors'
* relevant copyright in the software, without fee, provided that it
* is used in conjunction with NXP Semiconductors microcontrollers. This
* copyright, permission, and disclaimer notice must appear in all copies of
* this code.
**********************************************************************/
/* Peripheral group ----------------------------------------------------------- */
/** @defgroup CRC CRC (Cyclic Redundancy Check)
* @ingroup LPC_CMSIS_FwLib_Drivers
* @{
*/
#ifndef __LPC__CRC_H_
#define __LPC__CRC_H_
/* Includes ------------------------------------------------------------------- */
#include "LPC407x_8x_177x_8x.h"
#include "lpc_types.h"
#ifdef __cplusplus
extern "C"
{
#endif
/* Private macros ------------------------------------------------------------- */
/** @defgroup CRC_Private_Macros CRC Private Macros
* @{
*/
/* -------------------------- BIT DEFINITIONS ----------------------------------- */
/*********************************************************************//**
* Macro defines for CRC mode register
**********************************************************************/
#define CRC_BIT_RVS_WR (1<<2)
#define CRC_CMPL_WR (1<<3)
#define CRC_BIT_RVS_SUM (1<<4)
#define CRC_CMPL_SUM (1<<5)
/**
* @}
*/
/* Private types ------------------------------------------------------------- */
typedef enum
{
CRC_POLY_CRCCCITT = 0, /** CRC CCITT polynomial */
CRC_POLY_CRC16, /** CRC-16 polynomial */
CRC_POLY_CRC32 /** CRC-32 polynomial */
}CRC_Type;
typedef enum
{
CRC_WR_8BIT = 1, /** 8-bit write: 1-cycle operation */
CRC_WR_16BIT = 2, /** 16-bit write: 2-cycle operation */
CRC_WR_32BIT = 4, /** 32-bit write: 4-cycle operation */
}CRC_WR_SIZE;
/* Public Functions ----------------------------------------------------------- */
/** @defgroup CRC_Public_Functions CRC Public Functions
* @{
*/
void CRC_Init(CRC_Type CRCType);
void CRC_Reset(void);
uint32_t CRC_CalcDataChecksum(uint32_t data, CRC_WR_SIZE SizeType);
uint32_t CRC_CalcBlockChecksum(void *blockdata, uint32_t blocksize, CRC_WR_SIZE SizeType);
/**
* @}
*/
#ifdef __cplusplus
}
#endif
#endif /* __LPC_CRC_H_ */
/**
* @}
*/
/* --------------------------------- End Of File ------------------------------ */
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