基于两片TMS320C40的高速数据采集系统

传输带宽和抗干扰能力是评价数据采集系统性能的重要指标。文中采用高速 DSP芯片TMS32 0 C4 0和乒乓缓存技术设计的嵌入式高速采集系统 ,实现了数据的高速采集传输存储 ;光纤隔离技术的引入 ,显著提高了系统的抗干扰能力 ;双 CPU结构使系统可选择有效数据进行存储 ,并对部分数据做实时辅助处理 ;模块化设计思想及大规模可编程逻辑器件的采用 ,使系统具备较强的可扩展性。

Dual TMS320C40-Based High-Speed Data Acquisition System

Both transfer width and anti jamming capability are important indicatrixes to assess a data acquisition system. The embedding high speed acquisition system introduced in this paper, because of its adopting high speed DSP chip and ping pang cache, realizes high speed picking,transferring and storing of data; Optical fiber isolation technology enhances its anti jamming capability; dual CPU structure makes it impossible that the acquisition system can choose and store nothing else than the valid data, and can process part of the data in real time; blocking design idea and vast scale programmable logic device are used to make the system expandable.