基于USB的LDT实时数据采集系统设计

The design of a real-time data acquisition LDT system based on USB

基于USB的LDT实时数据采集系统的设计严格遵循USB1 1协议 ,体现了USB即插即用、易扩展、低干扰的特点 ,从而实现了主机和多台测试设备之间简单、快速、可靠的连接和通信。介绍了基于USB总线的数据采集设备的硬件设计、设备驱动程序、设备固件、应用程序等设计方法。

The design of a real time data acquisition LDT system based on the USB interface follows the USB specification 1.1. It embodies the plug and play function,good extensibility and low disturbance of the USB controller,thus implementing the simple and practical link between the host and multi equipment.This paper presents the design method for the data acquisition equipment that uses USB as its interface including the circuit design,equipment driver,firmware and applied program of a USB device.