单片机实现的CRC校验，特别针对PPP协议验证过。多项式是：CRC16-CCITT x16+x12+x5+1-Singlechip realize the CRC checksum, with special reference to PPP agreements verified. Polynomial is: CRC16-CCITT x16+ X12+ X5+ 1

1、环境要求：Windows/XP/7；C；信息交换内容为键盘输入的字符串；通信传输通过共享文件实现 2、编码要求：生成多项式为CRC-12 3、功能要求：能在两台计算机机上运行程序，一台产生CRC码，另一台校验。-1, environmental requirements: Windows/XP/7 C information exchange content as a string keyboard input communication transmission to ach

用模2除法计算CRC码，生成多项式为CRC-16；允许输入字符等，有完备的报错功能。-The 2 division calculation CRC code mode, generating polynomial for CRC-16 allow input characters, there are errors of complete function.

用查表法计算 CRC 码的 CRC-CCITT 校验软件设计；通信传输方式通过共享文件实现；生成多项式为 CRC-CCITT，能在两台计算机上运行程序，一台产生 CRC 码，另一台校验。-CRC-CCITT check software is designed by using look-up table method communication transmission mode is realized by shared file generating polynomial is CRC