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