说明：  该源代码运行于89c51系列单片机上,可从输入FLEX二进制码流中解交织,处理CRC纠错,并最终解码出有效ASCII码数据.
(the source code running on 89c51 MCU, FLEX can be imported from binary code stream deinterleave handling of CRC error correction. and finally decoding of effective ASCII data.)