用PIC单片机和Dallas的iButton通讯时,编了段产生和校验
CRC的子程序。#include ;------------------------------- cblock0x20 datBuff:8;assign 8 byte data buffer bit_cnt;bit counting 
CRC_COUNT;number of bytes for 
CRC CRC_RESULT;
CRC resulr 
crc_temp;temporary data buffer during 
CRC endc ;----------- ..
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