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SPI是一种常用的串行通信协议,用于MCU系统与外围设备的通信。文中以OMAP1612/11的SPI接口为例,论述了SPI接口的端口、寄存器等结构,介绍了SPI协议,给出了SPI在主模式MCU_DSP发送/接收协议下的数据发送/接收过程,并在FPGA从端对SPI接口进行仿真。
Abstract：SPI is a common-use serial communication protocol,which is used for communication between MCU and peripherals.Taking the SPI interface of OMAP1612 as an example,the paper gives an account of the structure,including the port for SPI interface and register etc,and describes the SPI protocol in detail.The SPI receive/transmit process of MCU-DSP receive/transmit protocol in master mode is also given,including the simulation of the whole process with FPGA in the terminal.
1李刚.ADμC8XX系列单片机原理与应用技术[M].北京:北京航空航天大学出版社,2002.
2彭启琮.OMAP处理器的原理及应用[M].北京:电子工业出版社,2005.
3胡庆钟,李小刚.TMS320C55x DSP原理、应用和设计[M].北京:机械工业出版社,2005.
4申敏,邓矣兵.DSP原理及其在移动通信中的应用[M].北京:人民邮电出版社,2001
基本信息:
中图分类号:TN791;TP368.12
引用信息:
[1]杨美刚,李小文.SPI接口及其在数据交换中的应用[J].通信技术,2007,No.191(11):385-387.
2007-11-10
2007-11-10