在TI网站上找了一下午没找到,希望能得到帮助……谢谢……
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SPI是标准的工业接口,同步的串行通信协议,如果你需要了解该协议,你可以在网上找找en.wikipedia.org/.../Serial_Peripheral_Interface_Bus。6747的SPI很简单的,附上user guide的链接www.ti.com/.../spruh91a.pdf