PCI总线数据采集系统的设计

本文介绍了一种双通道PCI总线高速数据采集系统,可单独或同时对2个输入通道的信号进行采集。为简化接口电路的设计过程,采用接口芯片PCI9030来实现系统的PCI总线接口功能,结合可编程逻辑器件CPLD来实现系统的控制逻辑。最后还介绍了在开发工具Windriver下,该数据采集系统驱动程序的开发。实际应用表明,该设计满足了系统对信号采样实时性和高速数据传输性能的要求。

Design of data acquisition system based on PCI bus

This paper introduces a two-channel data acquisition system based on PCI bus. The system can sample the signal from either,or both of the channels at one time. To simplify the difficulty in the development of interface circuit,the PCI9030 is used to implement the performance of PCI bus interface,and CPLD is to implement the control logic. The article also discusses the development of the device driver program based on Windriver. Application in practice shows that the system meets the requirements of real-time sample and high-speed transfer.