基于ADuC812的4通道8M字节数据记录器的设计及实现

Design & Completion of a Real-time Data Recorder with 4 Channels and 8 MB Memory Based on Microconverter ADuC812

介绍了一种基于新型低价格 ADu C81 2单片机所构成的类似于“黑匣子”的 8MB数据纪录器的设计与实现。该记录器可在现场高速实时地记录相关信息 ,并能在掉电状态下保存信息。回收该记录器 ,重新上电后可准确地回放所记录的信息以供分析使用。同时简要介绍了微控制器 ADu C81 2的特点及其 A/D转换器的几种使用方法 ,主要是它的 DMA方式。

Design and completion of a real-time data recorder which is based on ADuC812, a new kind of inexpensive Microconverter. This recorder has 4 A/D converter channels and 8 MB storage. It can record real-time data at high sampling rate and store those data for ever even if the power supply is shut off.That function is similar to 'black box' in airplane. When this recorder is recovered and powered again,the former data could be transferred out correctly. In addition, this article introduces how to use the A/D converter of ADuC812 briefly, mainly about the DMA mode of A/D.