基于USB3.0的高速读数盒设计

Design of High-Speed Reading Box Based on USB3.0

摘要:

针对测试系统中USB2.0接口已不能满足当代测试速度需求,提出一种基于USB3.0和FPGA的高速读数的解决方案；该方案以FPGA为核心控制器,EZ-USB FX3被配置成Slave Fifo从模式；通过对DMA通道和GPIF II接口优化设计以实现指令的下传和数据的高速上传；经实际传输测试,该读数盒能在传输数率高达228 MB/s时依然能保持正确无误的高速传输。

Abstract:

According to the fact that USB2.0 interface for the test system can not meet the needs of speed in the contemporary,this paper proposed a high-speed reading solutions based on USB3.0 and FPGA. This design used FPGA as the core controller, EZ-USB FX3 is configured to Slave Fifo slave mode; through optimizing the design of the DMA channel and GPIF II interface to implement instruction download and data with super-speed upload.Through practical transmission test,the reading box can still be able to maintain correct transmissions when the speed is up to 228 M byte/s.