基于QT开发的波形绘图软件，此软件支持边传输边绘制。包含两大功能：操作字符设备进行数据快速传输，传输中实时绘制波形图。采用双缓存技术，没有闪烁和花屏现象-QT-based waveform drawing software development, software support while the transmission side draw. Contains two functions: fast operation character device for data transmiss