/**--------------File Info-------------------------------------------------------------------------------
** File name:			sdtools.c
** Last modified Date:	2005-1-6
** Last Version:		V1.0
** Descriptions:		sd 卡驅動軟件包: SD卡相關工具函數 ---- CRC校驗頭文件
**						Soft Packet of SD Card Driver: tool funcitons about sd card ---- crc check header file
**
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** Created by:			gan peng
** Created date:		2005-1-6
** Version:				V1.0
** Descriptions:		The original version
**
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extern INT16U SD_GetCRC16(INT8U *pSource,INT16U len);	//得到len個字節的CRC16

extern INT8U SD_GetCmdByte6(INT8U cmd,INT8U *param);	//得到SD命令的第6個字節: CRC7 + 停止位1

extern INT8U SD_GetCRC7(INT8U *pSource,INT16U len);		//得到len個字節的CRC7