详细说明：单片机89c51对usb操作的全过程,初始化，读写- Monolithic integrated circuit 89c51 to usb operation entire process, initialization, read-write
文件列表:
source code for AT
.......................\AT89X51.H
.......................\FreqUSB.C
.......................\FreqUSB.hex
.......................\FreqUSB.PDF
.......................\INTRINS.H
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