FPGA和USB2.0双工接口设计
王燕燕;刘勇;黄鲁
【期刊名称】《自动化与仪表》 【年(卷),期】2012(027)002
【摘要】为了实现FPGA与USB2.0之间稳定快速的数据传输,该设计利用USB2.0接口芯片CY7C68013的Slave FIFO模式,采用时分复用的方法设计了一种双向数据接口.在FPGA端,持续把从USB OUT FIFO读出的数据回写到USB IN FIFO,以实现系统的自环测试.该设计已被应用到超宽带(UWB)无线系统中,结果表明本接口工作稳定,数据传输准确,平均速率12Mb/s.%In order to accomplish the high-speed data transportation between the FPGA and the USB2.0,The system implement a bi-directional interface which works in the Slave FIFO mode of USB2.0 interface chip CY7C68013 andusing the time division multiplexing mechanism. After the self-loop testing by writing data continuously from OUTFIFO to IN FIFO of USB under the control of the FPGA,this design has been applied to the ultra-wideband(UWB)wireless systems. The results show that the interface works stably and transfers data accurately,its average rate is12Mb/s. 【总页数】4页(45-48)
【关键词】现场可编程门阵列;USB2.0;CY7C68013;Slave FIFO模式;Verilog HDL;双工接口
【作者】王燕燕;刘勇;黄鲁
【作者单位】中国科学技术大学电子科学与技术系集成电路实验室,合肥
FPGA和USB2.0双工接口设计
