单片机和上位机交互通讯的简单源程序（汇编，可用proteus的虚拟终端仿真）-MCU and host computer communication simple interactive source (a compilation of available virtual terminal emulation proteus)

采用PIC18F4550编写USB下位机程序，上位机采用VB编写，实现对USB的示波器-Prepared using PIC18F4550-bit machine, under USB program, host computer using VB to prepare and realize USB Oscilloscope