这是dsp5509A的USB与主机通信的源码。包含固件程序和上位机程序，以及调试的几点注意事项，希望对开发dsp的USB模块的朋友有所帮助。-This is the USB with the host dsp5509A the source of communication. Contains the firmware and PC procedures, and debugging some attention, in the hope that the development of the