摘要
该设计使用Altera公司的Cyclone系列的EP2C5T144C8作为主控器,采用VHDL语言以及使用Quartus_II_9.0平台设计数据采集控制系统。采用ADC0809作为模数转换器,DAC0832作为数模转换器,采用四位一体共阴极数码管作为显示装置。在程序设计中,用状态机控制ADC0809来采样,根据外部按键的状态来确定所需显示的数据,通过改变DAC0832的参考电压,实现了极性输出。测试结果表明,系统整体比较稳定,采样具有较高的精度和速度。
This design uses Altera＆#39;s Cyclone series EP2C5T144C8 as the main control er,VHDL as the lan-guage and Quartus_II_9.0 Platform Design of data acquisition and control system.Using ADC0809 as the analog-to-digital converter,DAC0832 as a digital-to-analog converter,and the four in one common cath-ode LED digital tube as display device.Sampling the state machine to control ADC0809 in the program de-sign,according to the external key state to determine the required data display,the reference voltage change DAC0832,realize the polarity output difference.This design final y completed the design requirements.
出处
《电子质量》
2014年第3期28-31,共4页
Electronics Quality
基金
陕西省教育厅科研计划项目资助(2013JK1059)
