This is a C8051F340 the SPI interface of the source drive AT45DB161D hope that help! ! I have tested, to share to everyone.

Packet : 69491735f340_at45db161prg.rar filelist
F340_AT45DB161PRG\AT45D161D.C
F340_AT45DB161PRG\AT45D161D.h
F340_AT45DB161PRG\c8051F340.h
F340_AT45DB161PRG\F34x_USB0.wsp
F340_AT45DB161PRG
F340_AT45DB161PRG\F340-AT25DB161D.C

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