Terminal TCP/IP RS232 XMODEM YMODEM etc

本源码功能是通过ymodem协议进行文件传送及接收, 在Linux上编译通过。-file send/receive via ymodem protocol

XMODEM is a simple file transfer protocol developed as a quick hack by Ward Christensen for use in his 1977 MODEM.ASM terminal program. XMODEM became extremely popular in the early bulletin board system (BBS) market, largely because it was so simple