cpld不起作用

选项和软件行为可能会在不同版本之间发生变化 - 而且您已经跳过了两个版本的软件，因此可能是设计的路由方式不同，因此之前传递的一些边际时间现在还没有通过。
虽然您可以比较fitter报告中的实现选项和方程式，但简单地下载和重新安装9.x版本的工具并使用它可能是最快的事情。
9.x版本的工具可免费下载，不限于CPLD设计。
/阿瑟



以下为原文

Options and software behavior may change from release to release -and you've jumped over two releases of software so it could be that the design is routed differently and so some marginal timing that was passing before isn't passing now.
 
While you could compare implementation options and equations in the fitter report, it may be the fastest thing to simply download and re-install the 9.x version of the tools and use that. The 9.x version of the tools are available for free download and are not limited for CPLD designs.
 
/Arthur

只是温柔的提醒......
您在Spartan论坛上发布了CPLD主题，而不是CPLD论坛。
您可以在CPLD论坛中获得对问题的更多回复，此外，CPLD论坛中的人员将从您的问题得到解决中受益。
- 鲍勃埃尔金德
签名：新手的自述文件在这里：http：//forums.xilinx.com/t5/New-Users-Forum/README-first-Help-for-new-users/td-p/219369总结：1。
阅读手册或用户指南。
你读过手册了吗？
你能找到手册吗？2。
搜索论坛（并搜索网页）以寻找类似的主题。
不要在多个论坛上发布相同的问题。
不要在别人的主题上发布新主题或问题，开始新的主题！5。
学生：复制代码与学习设计不同.6“它不起作用”不是一个可以回答的问题。
提供有用的详细信息（请与网页，数据表链接）.7。
您的代码中的评论不需要支付额外费用。
我没有支付论坛帖子的费用。
如果我写一篇好文章，那么我一无所获。



以下为原文

Just a gentle reminder...
 
You posted a CPLD topic in the Spartan forum, instead of the CPLD forum.
You may get more replies to your problem in the CPLD forum, plus the folks in the CPLD forum will benefit from seeing your problems worked out.
 
- Bob Elkind
SIGNATURE:
README for newbies is here: http://forums.xilinx.com/t5/New-Users-Forum/README-first-Help-for-new-users/td-p/219369

Summary:
1. Read the manual or user guide.  Have you read the manual? Can you find the manual?
2. Search the forums (and search the web) for similar topics.
3. Do not post the same question on multiple forums.
4. Do not post a new topic or question on someone else's thread, start a new thread!
5. Students: Copying code is not the same as learning to design.
6 "It does not work" is not a question which can be answered. Provide useful details (with webpage, datasheet links, please).
7. You are not charged extra fees for comments in your code.
8. I am not paid for forum posts.  If I write a good post, then I have been good for nothing.

是的，抱歉，我忘了。=）



以下为原文

o yeah, sorry i forgot .= )