xmodem C语言实现

1.用C语言实现了XMODEM协议：128byte/packet, 支持CRC/Checksum 2.在freescale开发板TWR-K60F120M上测试通过 3.用tera term，hyper terminal，secureCRT测试通过

/**************************************************************************
* 
* Written by Cencong Su （cencong.su@gmail.com）
*
***************************************************************************
* Redistribution and use in source and binary forms with or without modification 
* are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above author notice
*    this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above author notice
*    this list of conditions and the following disclaimer in the documentation
*    and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
*    derived from this software without specific prior written permission. 
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ‘‘AS IS‘‘ AND ANY EXPRESS OR IMPLIED 
* WARRANTIES INCLUDING BUT NOT LIMITED TO THE IMPLIED WARRANTIES OF 
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT 
* SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT INDIRECT INCIDENTAL SPECIAL 
* EXEMPLARY OR CONSEQUENTIAL DAMAGES （INCLUDING BUT NOT LIMITED TO PROCUREMENT 
* OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE DATA OR PROFITS; OR BUSINESS 
* INTERRUPTION） HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY WHETHER IN 
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* OF SUCH DAMAGE.
*
**********************************************************************//*!
*
* @file crc16.c
*
* @author Cencong Su
*
* @brief CRC16 implementation acording to CCITT standards
*
***************************************************************************/

#include “crc16.h“

static const unsigned short crc16tab[256]= 
{
	0x00000x10210x20420x30630x40840x50a50x60c60x70e7
	0x81080x91290xa14a0xb16b0xc18c0xd1ad0xe1ce0xf1ef
	0x12310x02100x32730x22520x52b50x42940x72f70x62d6
	0x93390x83180xb37b0xa35a0xd3bd0xc39c0xf3ff0xe3de
	0x24620x34430x04200x14010x64e60x74c70x44a40x5485
	0xa56a0xb54b0x85280x95090xe5ee0xf5cf0xc5ac0xd58d
	0x36530x26720x16110x06300x76d70x66f60x56950x46b4
	0xb75b0xa77a0x97190x87380xf7df0xe7fe0xd79d0xc7bc
	0x48c40x58e50x68860x78a70x08400x18610x28020x3823
	0xc9cc0xd9ed0xe98e0xf9af0x89480x99690xa90a0xb92b
	0x5af50x4ad40x7ab70x6a960x1a710x0a500x3a330x2a12
	0xdbfd0xcbdc0xfbbf0xeb9e0x9b790x8b580xbb3b0xab1a
	0x6ca60x7c870x4ce40x5cc50x2c220x3c030x0c600x1c41
	0xedae0xfd8f0xcdec0xddcd0xad2a0xbd0b0x8d680x9d49
	0x7e970x6eb60x5ed50x4ef40x3e130x2e320x1e510x0e70
	0xff9f0xefbe0xdfdd0xcffc0xbf1b0xaf3a0x9f590x8f78
	0x91880x81a90xb1ca0xa1eb0xd10c0xc12d0xf14e0xe16f
	0x10800x00a10x30c20x20e30x50040x40250x70460x6067
	0x83b90x93980xa3fb0xb3da0xc33d0xd31c0x

 属性            大小     日期    时间   名称
----------- ---------  ---------- -----  ----
     文件        4050  2016-05-03 17:02  crc16.c
     文件        1961  2016-05-03 17:02  crc16.h
     文件       11966  2016-05-03 17:27  xmodem.c
     文件        3336  2016-05-03 17:01  xmodem.h