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文章首先构建了基于软件无线电理论的中频接收机实验平台,重点介绍了DMA结合McBSP的数据双向传输技术,DSP/BIOS设置管理应用程序中工作对象McBSP和DMA,并安排工作线程的调度。
Firstly, this paper constructs an IF receiver experimental platform based on software radio theory. The DMA bidirectional McBSP data bidirectional transmission technology is introduced in detail. DSP / BIOS sets the McBSP and DMA in the application and schedules work threads.