The main funtion of this program is to communicate with GPS board, via a serial port or UDP network.The development platform is QT5.7 on Linux system.In my working item, Minicom is not intutive and convenient,so I mada an imitation just like a program on Windows system.This program is not very well designed. This program commmunicate with BDM683 successfully via a serial port, and communicate with another computer(Windows system) successfully via UDP network.