FPGA中开关矩阵的研究

Studies of FPGA Switch Matrix

开关矩阵是现场可编程门阵列FPGA芯片中最重要的组成部分之一。通过对FPGA中开关矩阵进行分析和研究,介绍了开关矩阵的布局和绕线方式,建立了开关矩阵的基本模型,对开关矩阵模型进行了仿真、分析和优化。重点分析了开关矩阵速度与各参数因子之间的关系,结果表明优化后的开关矩阵具有很好的性能。

Switch matrix is one of the most important structure in FPGA devices. In the paper, the switch matrix of FPGA is analyzed in details. The placement and routing is at first introduced for switch matrix modeling. During the simulation, analysis and optimization of the model performed, the relationship between the velocity and parameters is discussed. The results show that the switch matrix is of better performance after optimization.