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Title: sp027 Download
 Description: SPI（Serial Peripheral Interface）是一种串行同步通讯协议，由一个主设备和一个或多个从设备组成，主设备启动一个与从设备的同步通讯，从而完成数据的交换。SPI 接口由SDI（串行数据输入），SDO（串行数据输出），SCK（串行移位时钟），CS（从使能信号）四种信号构成，CS 决定了唯一的与主设备通信的从设备，如没有CS 信号，则只能存在一个从设备，主设备通过产生移位时钟来发起通讯。通讯时，数据由SDO 输出，SDI 输入，数据在时钟的上升或下降沿由SDO 输出，在紧接着的下降或上升沿由SDI 读入，这样经过8/16 次时钟的改变，完成8/16 位数据的传输。
 Downloaders recently: [More information of uploader wj0123.happy]
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File list (Check if you may need any files): 
sp027\main.c
.....\main.cof
.....\main.hex
.....\main.lis
.....\main.o
.....\main.s
.....\main._c
.....\sp027.c
.....\SP027.cof
.....\SP027.dbg
.....\sp027.h
.....\SP027.hex
.....\sp027.lis
.....\SP027.lk
.....\SP027.lst
.....\SP027.mak
.....\SP027.mp
.....\sp027.o
.....\sp027.prj
.....\sp027.s
.....\SP027.SRC
.....\sp027._c
.....\sp027._h
sp027

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