一种流水线存储的数据采集系统

A Data Acquisition System of Pipelined Storage

为了在提高数据采集卡的速度的同时降低成本,设计了一种应用流水线存储技术的数据采集系统。该系统应用软件与硬件相结合的方式来控制实现,通过MAX1308模数转换器完成ADC的转化过程,采用多片Nandflash流水线数据存储模式对高速采集的数据进行存储。搭建硬件电路,并在CPLD内部通过编写VHDL语言实现了采集模块、控制与存储模块和Nandflash存储功能。调试结果表明,芯片的读写时序信号对应的位置准确无误,没有出现时序混乱,且采集速度能保持在10 Mb/s以上。系统实现了低成本、高速多路采集的设计要求。

In order to improve the speed of data acquisition cards,while reducing costs,has designed a data acquisition system of pipelined storage.The system is controlled by the Software and hardware combination,through the MAX1308 completes of the ADC conversion process,using pipelined high-speed data storage mode to store the data collected.With hardware circuit,and in CPLD the system makes up the acquisition module,the control module,the storage module and the Nandflash storage using the VHDL language.Experiment results show that read and write chip timing signal corresponding to the location accuracy,timing does not appear chaotic,and acquisition speed maintain the 10Mb/s or more.The system realizes design requirements of low cost,high-speed multiplex acquisition.