USB keyboard to develop the source code can be used to develop single-chip 51, etc.

Packet : 21840296usb.rar filelist
USB键盘源代码\UsbKeyBoard.LST
USB键盘源代码\UsbKeyBoard_Uv2.Bak
USB键盘源代码\keyboard.h
USB键盘源代码\UART.LST
USB键盘源代码\UsbKeyBoard.Uv2
USB键盘源代码\PDIUSBD12.h
USB键盘源代码\UART.c
USB键盘源代码\UsbKeyBoard.c
USB键盘源代码\USB.H
USB键盘源代码\UsbKeyBoard_Opt.Bak
USB键盘源代码\UsbKeyBoard.Opt
USB键盘源代码\UART.h
USB键盘源代码\Key.c
USB键盘源代码\UART.OBJ
USB键盘源代码\UsbKeyBoard.plg
USB键盘源代码\UsbKeyBoard.OBJ
USB键盘源代码\UsbKeyBoard.M51
USB键盘源代码\Key.LST
USB键盘源代码\UsbKeyBoard.hex
USB键盘源代码\Key.h
USB键盘源代码\Key.OBJ
USB键盘源代码\UsbKeyBoard.lnp
USB键盘源代码\UsbKeyBoard
USB键盘源代码\My_type.h
USB键盘源代码\注意：图中串口电平转换部分的C8和C10接反了，C11负端应接VDD。D12的SUSPEND(12脚)应该接地。USB接头处的D+和D-应该分别串联22欧姆的匹配电阻。由于图得比较匆忙，所以没留意。.jpg
USB键盘源代码

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