适用于困难约束的合适工具

你好…
我想开始讨论硬件
Xilinx FPGA的综合工具。
我想实现一个包含的设计
大量乘法器，并且具有非常困难的时序和（可能）区域约束。
我正处于整个项目的可行性阶段，我正在寻找
正确的设备。
我决定尝试一些Spartan-3，Spartan-3 DSP和Virtex-5
设备。
除了设备，我必须做出最大的选择
适当的综合工具。
我需要一个能够为a提供最佳效果的工具
类似DSP的VHDL设计将帮助我实现时序和面积限制。
我已经将XST用于许多设计，它确实是
好，但我认为当约束很困难，但并非不可能
要满足，它不如其他综合工具。
我想过
使用一些支持物理综合或物理感知的工具
合成以获得更好的结果（Mentor和Synplicity）。
所以我的问题是你认为哪种工具
会做什么工作，为什么？
事情变得艰难时哪个最好？
提前感谢所有愿意的人
分享他或她的经历。
附：
我知道这是Xilinx论坛和
也许关于其他综合工具（XST除外）的讨论并不完全正确
但是所有这些公司都在与Xilinx合作，我不这么认为
分享我们对此事的经验是错误的。
消息编辑由gtze于10-08-2007 03:31 PMMessage由gtze编辑于10-09-2007 09:23 AM



以下为原文

Hello…


I want to start a discussion about hardwaresynthesis tools for Xilinx FPGAs.


I want to implement a design that consistsof a big number of multipliers and has very difficult timing and (maybe) area constraints.I am at the feasibility stage of the whole project and I’m looking for theright device. I decided to try some Spartan-3, Spartan-3 DSP and Virtex-5devices. Except from the device I have to make a choice for the mostappropriate synthesis tool. I need a tool that will give the best results for aDSP-like VHDL design and will help me achieve the timing and area constraints.


I’ve used XST for many designs and it is reallygood but I think that when the constraints are very difficult, but not impossibleto meet, it isn’t as good as the other synthesis tools. I’ve thought aboutusing some of the tools that support Physical Synthesis or Physical AwareSynthesis for better results (Mentor and Synplicity).


So my question is which tool you think thatwill do the job and why? Which is the best when things get tough?


Thanks in advance for everyone who willshare his or hers experiences.


p.s. I know that this is a Xilinx forum andmaybe a discussion about other synthesis tools (except XST) is not exactly properbut all these companies are cooperating with Xilinx and I don’t think that itis wrong to share our experiences for this matter.



Message Edited by gtze on 10-08-2007 03:31 PM

Message Edited by gtze on 10-09-2007 09:23 AM