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出 处:《计算机测量与控制》2009年第8期1594-1597,共4页Computer Measurement &Control
摘 要:针对DSP芯片TS201的LINK口互连在高速数据通信中存在数据错误、突发数据块传输不稳定等缺点,在分析其通信协议的基础上,并结合实际应用,提出了设计LINK口通信的关键要求,给出设计的要点,设计与实现了TS201的LINK口互连以及FPGA(Xilinx公司的XC4VFX60)与TS201 LINK口互连,得到了实际测试结果;结果表明,所设计的LINK口互连具备的优点有:1)DSP之间通信可以达到单向600MB/s,双向1.2GB/s;2)DSP与FPGA之间通信可以达到单向450MB/s,双向900MB/s;3)LINK口的通信具备稳定、突发数据块传输无错误等性能。At present, DSP (digital signal processor) chip--TS201 has the flaws of transmitting block data error and unreliability. Based on LINK protocol and engineer need, the keys to the LINK connecting design are presented, including constraints to the signals of ACK and BCMP, whether or not need of match resistors of DSP LINK port; and then a kind of circuit design based on FPGA (Xilinx XC4VFX60) is used to modify the LINK port, and the all results can be following: 1) the LINK full--duplex data speed between DSP is 1.2GB/s and unidirectional data speed is 600MB/s; 2) the LINK full--duplex data speed between DSP and FPGA is 900MB/s and unidirectional data speed is 450MB/s; 3) bit error is low and burst transmitting block data has high reliability.
分 类 号:TP391.8[自动化与计算机技术—计算机应用技术]
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