基于ARM嵌入式高速数据采集记录仪的设计

Design of high-speed data-recording meter based on ARM embedded system

在复杂的电磁环境下,信号可能被干扰而产生畸变,为了得到信号的上升时间,下降时间,持续时间等一系列的电气参数和信号可靠性的验证,需要使用高速数据记录仪对信号进行高速采集以及大容量数据存储,以便事后分析。结合嵌入式技术,本文详细介绍了高速A/D采集,硬件FIFO,IDE接口的一般设计方法,并通过航空ARINC429总线高速数据采集记录仪的设计实例,阐述了设计方案的具体实现方式。在实际的应用中,高速数据记录仪的性能合乎要求,取得理想的效果。

In the complicated electromagnetic environment , the signal can be interfered and disformed. In order to gather a series of electronic arguments such as the rising time, the falling time and the sustaining time etc. and to verify the reliability of signal, it is necessary to gather and record the signal with a high-speed data-recording meier which can be analyzed afterwards. Based on the embedded system technology, this paper specifically introduces the general design methods of high-speed A/D gathering, hardware FIFO and interface IDE and elaborates on the design program by analyzing the airline bus ARINC429 high-speed data recording meter design example. In practical use, the quality of high-speed data-recording meter meets the demands and it is very effective.