说明：  c语言写的用于单片机mps430的底层通信协议，包含了bch编解码，交织编解码，和crc校验。经过简单的修改即可用于其他的单片机。
(write for the MCU mps430 underlying communication protocol includes the BCH encoding and decoding, codecs are intertwined, and crc check. After a simple modifications can be used in other SCM.)