This library implements the VxWorks Trivial File Transfer Protocol (TFTP) client library. TFTP is a simple file transfer protocol (hence the name "trivial") implemented over UDP. TFTP was designed to be small and easy to implement. Therefore,

什么是Xmodem？估计很多人对这种通信协议不太了解。其实它是一种古老、经典而广泛应用的文件传输协议（Xmodem其实是FTP文件传输协议中所使用的一种协议，用于完成文件数据的传输），其过程也是很简单的。-Xmodem ？ It s easy after you read this ZIP。。。What are you waiting for ?! Just DOWNLOAD it !!!