摘要
研究了一种以数字信号处理器 (DSP)为核心的高速多通道数据采集系统 ,详细讨论了该数据系统的结构与软、硬件实现 ,分析了计算机并口处于EPP模式下和DSP进行通讯的原理 ,设计了在EPP模式下采用FIFO实现高速数据传输的电路 ,并论述了数据采集软件开发中的若干关键技术。现场运行表明 ,该数据采集系统具有速度快、控制方便。
This paper introduces a multi-channel high-speed data acquisition system based on DSP (digital signal processor), discusses the architecture of this system and the realization of hardware and software, analyses the principle of communication between the parallel ports of PC in EPP mode and DSP, designs the high-speed data transmission circuit which is realized with FIFO in EPP mode, and illustrates several key technologies in developing the data acquisition software. Field running shows that the data acquisition system has many advantages such as high-speed, easy-to-control, high reliability, and so on.
出处
《电子工程师》
2003年第8期54-56,共3页
Electronic Engineer
