摘要
设计与实现了基于SPI的DSP与MCU双向通信。详细介绍了SPI接口以及DSP的多通道缓冲串口(McBSP)的特点,分析探讨了将McBSP配置为SPI的方法,给出了基于SPI的DSP与MCU双向通信的硬件电路和软件协议实现,很好地解决了SPI在双向通信中的不足之处。
A new design and realization of mutual communication based on SPI between DSP and MCU are presented. First, SPI along with its working principle and features of McBSP are introduced; then, a method of configuration of McBSP operation as SPI slave is analyzed and discussed; finally, the hardware circuit interface and software protocol of mutual communication between DSP and MCU are deeply analyzed and the shortage inherent in SPI for mutual communication is successfully solved.
出处
《科学技术与工程》
2007年第15期3911-3913,3918,共4页
Science Technology and Engineering
