mp3设计程序资料，采用c语言编写。 README file for yampp-3 source code 2001-05-27 This is the current state of the yampp-3 source code, 2001-05-27. This code is intended to run on Rev. B of the yampp-3 PCB, but can ofcourse be used on compa

用keil c和vb开发的单片机通用usb键盘，包含固件源码，驱动，调试程序和原理图。对做相关毕业设计的人很有帮助。-with keil c and vb development of the general-purpose usb keyboard includes firmware source code, drivers, Commissioning procedures and drawings. Make relevant to the graduate design helpful.