Blackfin DSP在数据高速采集中的应用

Application of Blackfin DSP in high-speed data acquisition

在传统的数字采集中通常采用MCU与FIFO配合的方案,不适合数据量大的场合。对比于传统数字采集系统,本文给出了一种基于Blackfin系列DSP的高速数据采集的实现方案,这一系统硬件结构简单、功能强大,完全可以适应大数据量、高实时性的要求。软件方面,配合以AD公司的仿真系统,使软件开发非常容易。实验结果表明:使用本系统可以很好地重建输入模拟信号;而使用传统系统,则会丢失很多细节,破坏了信号的完整性。

In the tradition data acquisition system, MCU and FIFO are commonly used which are not suitable to large datum. This article discussed a high speed data acquisition system which was base on the Blackfin DSP. The system hardware connection is very simple and its function can satisfy the requirement. In the software aspect, the exploitation is very easy. The result indicates that this system can rebuild the signal without distortion. If the tradition system is used, you will lose many details and destroy the integrity of signal.