In order to satisfy the requirement of high data rate transmission and accurate transmission of uplink command for TT&C (communication system for tracking, telemetry and command) system, the design of common use interface for TT&C system based on USB2.0 is proposed in this paper. The hardware system consists of the interface between FPGA and CY7C68013A, VHDL codes for FPGA .The MFC framework is adopted as basement of the host control end for the software system. Meanwhile, the firmware of USB is one part of the software system. The interrupt based state machine design was adopted, which contributes to the robust of the system. The experiment and application show that this communication interface system has good performance, and meets the design requirement.%为了实现遥控遥测地面接收机的测控信息和关键信道参数的实时备份、显示以及测控指令的准确发送，提出一种基于USB2．0协议的通用测控通信接口的设计方案，并完成了系统的软硬件设计。该系统的硬件部分主要包含FPGA与CY7C68013A的接口设计、FPGA硬件电路设计，软件部分包含了USB固件程序设计和基于MFC的主机接口程序设计。在状态机的设计中，引入基于软件的中断机制处理双向数据传输，并且加入了对重要标志信号的冗余保护措施，增强了状态机的稳定性和整个系统的鲁棒性。实际应用表明，该通信接口具有传输速率超高、操作简便、运行稳定的特点，达到了设计要求。
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