串口通讯动态连接库，支持X/YModem协议,serial port communicational dynamic link libraries,To hold up X/YModem agreement

ymdoem serial port data send

用c#写的基于winform的串口助手，包含常用的串口收发，16进制显示，使用ymodem协议传输下载到下位机烧写程序(WinForm based serial port assistant written in c#, including common serial port and transceiver, 16 decimal display, downloaded to lower machine burning write program using ymodem protocol t

配合下位机串口升级上位机 ymodem协议(Serial port upgrade PC ymodem protocol)