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随着高速采集系统的采样速率的增大和采样精度的提高,如何设置PCI Express系统的参数,充分利用PCI Express总线的带宽,以满足高速海量数据的实时传输就变得非常重要。在此分析了PCI Express系统数据传输开销的来源,研究了几种主要的系统参数,以提高数据吞吐量。通过使用PLDA的EZDMA2 IP核,在Xilinx KC705评估板上对各个参数进行测试,结果表明,灵活设置这些关键的系统参数可以利用较少的FPGA资源,同时达到较高的传输带宽,对PCI Express系统设计具有非常高的参考价值。 相似文献
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This paper presents a new method and results from measurement of internal parameters of programmable nanoscale circuits, namely Xilinx FPGA devices and especially Zynq SoC devices designed on 28 nm TSMC’s technology and older 45 nm Spartan 6 device as well as Xilinx Virtex product lines. The method utilizes a new undersampling approach for frequency measurement and an easy way of processing BRAM data streams. The proposed flexible circuits have been used in various measurements of timing parameters and delays in FPGAs, including measurements or detection of the aging issues. The paper presents results of measurements under various core voltage values as performed on selected Xilinx FPGA platforms, including key results about limited usability of the latest 28 nm devices under accelerated conditions and possibility of studying or mitigating aging effects in FPGAs. The paper presents rare results of experiments, real measurements and data available from current as well as previous technology nodes and it attempts to uncover new facts and areas of the latest high-end technologies, including the area of aging and degradation processes in general. The new methodology, presented approach and results can also be used in various dependable systems, including selected aerospace, medical, automotive or transportation ones. It is also directly and easily applicable to modern processor and multicore systems. 相似文献
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Realization of active power filter with Model Based Design approach is presented in this paper. The approach adopts different modeling platforms as well as selection of proper hardware for step wise verification and testing. The active power filter model is developed using the Matlab/Simulink platform for single phase. The efficiency of the control algorithms such as synchronous detection method and indirect current control for active power filter is analyzed. Efficient control algorithm is developed by Xilinx system generator which is incorporated into Simulink as Xilinx tool box. Xilinx system generator provides a virtual platform for easy and effective design of the required system models in FPGA (field programmable gate array) design environments. Optimized automatic VHDL code is generated for the control algorithm which is simulated using ISE 13.2 for the generation of switching signals for the control of IGBTs of the active power filter. Suitable compensation signal is generated from the active power filter for the better elimination harmonics to improve the power quality. THD is reduced to a considered value which is able to satisfy the limits of the IEEE standard. 相似文献
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Moshe Gavrielov Xilinx全球总裁兼CEO"全球经济走出低迷的过程中,Xilinx能够在ASIC领域赢得更多的市场份额。" 相似文献
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本文介绍了一种EOPDH/EOS网桥芯片的FPGA设计,具体说明了本网桥芯片的FPGA电路设计。将许多复杂的功能集中在FPGA上实现,既可以使得设计目标快速产品化,并可以根据市场要求的变化及时修改电路设计,大大体现出了采用FPGA设计的及时性和灵活性。本设计最终采用了XilinxSpartan-6得以验证实现。 相似文献
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Soydan Redif 《International Journal of Electronics》2013,100(12):1646-1651
Algorithms for computing an approximate polynomial matrix eigenvalue decomposition of para-Hermitian systems have emerged as a powerful, generic signal processing tool. A technique that has shown much success in this regard is the sequential best rotation (SBR2) algorithm. Proposed is a scheme for parallelising SBR2 with a view to exploiting the modern architectural features and inherent parallelism of field-programmable gate array (FPGA) technology. Experiments show that the proposed scheme can achieve low execution times while requiring minimal FPGA resources. 相似文献
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基于Vivado HLS工具封装了包括FAST算法和AXI接口的FPGA硬件IP,并将该IP集成到工业摄像机的嵌入式系统中,工作摄像机中FAST算法的最终处理结果传输给视觉检测设备主机。利用相同图像的FAST角点检测算法对FPGA算法电路和OpenCV算法程序进行对比实验,完成相同功能的情况下前者的处理速度比后者快约60倍,该功能在工业摄像机中使数据带宽最多减小9%,显示出本文的工作可提高工业视觉检测设备的检测效率和性能。相关技术可应用于其他图像处理算法,也可推广到二维传感器阵列数据的处理。 相似文献