该程序是一个基于pic18F4550的HID设计的程序，并且编写了相应的与上位机通讯的VB程序，全部程序经过了调试。-The program is a design based on the HID of pic18F4550 procedures and with the preparation of the corresponding VB PC communications procedures, all procedures h

PIC18F4520使用手册中文版！内部资料！-PIC18F4520 user manual Chinese version! Internal information!