文件名称:sp027
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- 上传时间:2012-11-16
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文件大小:35.49kb
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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。
相关搜索: 串行 传输
(系统自动生成,下载前可以参看下载内容)
下载文件列表
sp027/main.c
sp027/main.cof
sp027/main.hex
sp027/main.lis
sp027/main.o
sp027/main.s
sp027/main._c
sp027/sp027.c
sp027/SP027.cof
sp027/SP027.dbg
sp027/sp027.h
sp027/SP027.hex
sp027/sp027.lis
sp027/SP027.lk
sp027/SP027.lst
sp027/SP027.mak
sp027/SP027.mp
sp027/sp027.o
sp027/sp027.prj
sp027/sp027.s
sp027/SP027.SRC
sp027/sp027._c
sp027/sp027._h
sp027
sp027/main.cof
sp027/main.hex
sp027/main.lis
sp027/main.o
sp027/main.s
sp027/main._c
sp027/sp027.c
sp027/SP027.cof
sp027/SP027.dbg
sp027/sp027.h
sp027/SP027.hex
sp027/sp027.lis
sp027/SP027.lk
sp027/SP027.lst
sp027/SP027.mak
sp027/SP027.mp
sp027/sp027.o
sp027/sp027.prj
sp027/sp027.s
sp027/SP027.SRC
sp027/sp027._c
sp027/sp027._h
sp027
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