delphi实现modem两地文件传输。-two to realize modem file transfer.

利用moxa提供的功能强大的动态连接库，完成各种串口协议的通讯和传输文件（zmod ,xmod等协议），内付c，vb，delphi的demo程序-use MOXA provide a powerful dynamic link library, completed various agreements serial communication and file transfer (zmod, xmod other agreements), which pay c, vb, the demo pr

使用Delphi编写的串口通信控制器，具备文件传输功能-prepared by the use of Delphi serial communication controller with the file transfer function

利用ymodem协议通过串口传输数据或文件，具备CRC校验算法-Ymodem agreement through the use of serial transmission of data or documents, with CRC checksum algorithm