一个很用用的通过Pc端串口向下位机串口写入文件的delphi小程序。可以设置串口号，波特率，选择写入文件。全部图形化操作，直观易懂。使用Cport控件实现串口通讯，程序稳定。-A Pc-side with the serial port by using the down-bit file delphi serial port write a small program. You can set the serial number, baud rate, select write to file

VB Port test,check every com cport