摘要
针对测试系统中USB2.O接口已不能满足当代测试速度需求,提出一种基于USB3.O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GPIFⅡ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。
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 transmis- sions when the speed is up to 228 M byte/s.
出处
《计算机测量与控制》
北大核心
2014年第9期2912-2914,共3页
Computer Measurement &Control
