VXI总线C尺寸多通道同步数采模块设计

Multichannel synchronous data acquisition with a C-size module based on the VXI bus

本文介绍了VXI总线C尺寸多通道同步数采模块的硬件、软件设计方法和虚拟仪器的构建。该模块建立在VXI多用途插板式硬件平台结构基础上 ,内部集成了DSP芯片进行实时数字信号处理。使用FPGA和CPLD实现数字集成。软件采用了虚拟内存技术和主机下载程序技术 ,利用上位机灵活有效地扩展了系统内存。

The paper presents the implementation of multichannel synchronous data acquisition with the C size VXI bus module. The architecture of the module is based on the VXI versatile plug in with DSP on the inside for signal processing. The FPGA and CPLD devices are used to implement a logic circuit. The DSP program is host booted The virtual memory technology is used to extend the instument system memory.