摘要
数据采集在计算机测量、控制及信号处理中具有重要作用。采用ARM内部的A/D转换资源,具有转换速度高、设计简单等优点。介绍了ARM7处理器AT91M55800A的性能特点,给出了基于AT91M55800A的数据采集系统的硬件组成及一个实际运用方案,以及A/D转换部分的流程。通过软硬件结合实现了对多路数据的采集。该方案体积小、功耗低、可靠性强,适合多种工业场合应用。
The data acquisition part plays an important role in the computer measurement and control as well as signal processing. It has some advantages of higher converting speed and easy designing to use A/D resourse in the ARM. The paper presents a data acquisition system designed with AT91M55800A based on ARM structure. The system can collect data of multiple channels owing to the combination of hardware and software. The hardware of the system and the software flowchart is also given. The characteristics of the system are Small size, low power consumption and reliability. It is fitting for many industrial applications.
出处
《电子工程师》
2007年第7期65-67,共3页
Electronic Engineer
