串口发送内容较长的短信，进行了PDU编码、解码，发送-Serial port to send the contents of a longer text messages, a PDU encoding, decoding, sending

PDU发送中文短信时，GB2312转换成UCS－2的程序，为最底层的内码轮换，压缩包内包括：官网下载的GB2312.txt源文件、GB2UCS2.c源文件（有注释）和GB2UCS2.h头文件。-PDU when sending text messages in Chinese, GB2312 converted into UCS-2 program, for the most yards in the bottom of the rot

PDU短信收发处理程序，适合于移动GSM制式手机短信收发处理，符合ITU0705规范。-PDU SMS TRANRECEIVE PROGRESS

PDU格式短信构建库，经过本人亲测,.net平台通用-PDU format SMS build the library, after I pro-test, NET platform generic