This paper introduces the design and realization of a high-speed and low-cost virtual logic analyzer based on FPGA and USB2.0 bus.
本文介绍了一种基于FPGA的USB2.0高速、低成本的虚拟逻辑分析仪的设计原理与实现方法。
The peripheral bus that conform the PVCI standard usually used to connect IPs with low speed and low data width.
而符合PVCI标准的外设总线上连接的往往是低速度、低数据宽度的IP。
Traditional analysis tools only cover the single low speed bus and test signals in physical layer and data layer respectively.
传统方法只能分析系统中的单一低速总线，分别观测物理层信号和数据层数据进行分析。
USB is a kind of novel PC bus criterion. With the quality of fast speed, convenience and low interference, USB is the most available communication interface of modern intelligence instrument.
通用串行总线(usb)作为一种新型微机总线规范，具有便捷易用、传输速率快、低干扰等特点，非常适合作为现代智能仪器的通信接口。
Singlechip was used in CAN bus and serial communication interface, whose valid transition speed is very low and can't satisfy rigorous demands.
当前CAN总线与串口通信接口转换均采用单片机，有效转换速率很低，不能满足条件苛刻的场合；
The product is specifically designed to provide well-regulated supply for low voltage IC applications such as high-speed bus termination and low current 3.3v logic supply.
本产品专门设计用于提供规则电源，主要是为低压ic应用：如高速总线终端和3.3V低电流逻辑电源等供电。
The utility model which is provided with slot-shaped bus bar contact faces has the advantages of low labor intensity, high processing speed, high machining precision, etc.
槽型母线接触面，具有减少劳动强度，加工速度快，加工精度高等优点。
The utility model which is provided with slot-shaped bus bar contact faces has the advantages of low labor intensity, high processing speed, high machining precision, etc.
槽型母线接触面，具有减少劳动强度，加工速度快，加工精度高等优点。
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