基于C8051F330D单片机的多路数据采集系统设计

Design of multi-channel data acquisition system based on C8051F330D SCM

介绍了数据采集系统的结构和工作原理,并应用C8051F330D单片机设计了一个多路数据采集系统。该系统硬件由4部分组成:电源电路、主控制芯片、按键电路、显示电路。每部分都做了相应的设计;系统软件采用汇编语言开发实现,选用编译工具——keil编译器完成C8051F330D单片机与计算机之间的连接,从而对采集系统进行一系列的调试。最后的实验表明该采集系统精度高、操作性能良好,应用成本较低,因此可用于多种环境下的温度、压力等物理量的采集、转换及显示。

This paper introduces the structure and principle of work for data acquisition system,and designed a multi- channel data acquisition system using the C8051F330D SCM.The hardware of system is composed of four parts： Power circuit,Master control chip,Key-press circuit and Display circuit.Each of them has corresponding design;The software of system is developed by assembly language,and the compilation tool—keil compiler is used to connect C8051F330D SCM and computer so to complete a series of debugging for the acquisition system.Finally,the experiment indicated the acquisition system have a good performance on accuracy and operating characteristic,its practice cost is low,so it can be used to acquire、transform and display physical quantity such as temperature and pressure in kinds of environment.