光电跟踪产品双DSP系统间的数据传输

Data transmission between double-dsp system in a kind of photoelectric tracking product

以某光电产品的信息处理系统为研究背景,介绍了某光电跟踪产品双 DSP 的系统结构,以TMS320C6201B 从 ADSP2187L 获取数据为例,详细介绍了 DMA 通讯的工作机理和工作流程,以及利用宏方便地完成寄存器以及各位定义的方法,给出了软件编程步骤及方法,同时以 TMS320C6201B 为例,简要介绍了 DMA 中断服务程序。研究及实践表明当数据量较大时,通过 DMA 方式完成 DSP 间源数据和目的数据的搬移将大大节约机时,提高了 DSP 的运行效率。

With the studying background of a kind of product's signal-processing system,the double-DSP system structure of a kind of photoelectric tracking product is introduced.According to the example of TMS320C6201B getting data from ADSP2187L.in detail the principle and process of transmission by DMA are introduced,and the method of the register defining and software programming are given.In addition,the DMA interrupted serve program is discussed by the example of TMS320C6201B.The study and experiment indicate that data-transmission by DMA between DSPs saves time greatly when the amount of data is great.