请问可以使用JTAG作为从FPGA传输大量高速数据到PC的通道吗？

你在考虑为你的PC插入JTAG适配卡吗？
还是USB-JTAG适配器？
“大量”有多大，“高速”有多高？
- 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。
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以下为原文

Are you thinking about a plug-in JTAG adapter card for your PC?  Or a USB-JTAG adapter?
How large is 'large amount', and how high is 'high speed' ?
 
-- Bob Elkind
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README for newbies is here: http://forums.xilinx.com/t5/New-Users-Forum/README-first-Help-for-new-users/td-p/219369

Summary:
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嗨鲍勃，谢谢你的回复。
我在考虑USB-JTAG适配器。
该项目用作实时数据采集，数据速率（从FPGA到PC）约为50~500M字节/秒。
我只听说JTAG是编程和调试，而不是数据传输。
我不确定。
谢谢！



以下为原文

Hi Bob, thank you for your reply. I'm thinking about USB-JTAG adapter. And this project is used as a real-time data collection with a data rate(from FPGA to PC) about 50~500M bytes/second.  
I only heard JTAG as programming and debug but not as data transmission. I'm not sure.

Thank you!

每秒50-500MBytes（对于设计目标而言，这是一个相当宽的范围）超过USB2范围。
您处于PCIe x4或SATA III领域。
或者也许是USB3。
即使你避开了USB2层，JTAG也是完全不可能的。
阅读IEEE1149.1规范以了解有关JTAG的更多信息。
如果数据来自PC，那么每秒500MBytes的存储设备是什么？
固态硬盘RAID阵列？
执行某种数据缩减处理，为此系统打开更多数据链接（和存储）选项可能会有所帮助。
- 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

50-500MBytes per second (uhhhh...  that's a pretty broad range for a design target) exceeds USB2 range.  You're in PCIe x4 or SATA III territory.  Or maybe USB3.  JTAG is completely out of the question, even if you avoided the USB2 layer.  Read up on IEEE1149.1 specification to learn more about JTAG.
 
If the data is coming from the PC, what storage device is cranking out 500MBytes per second? A RAID array of solid state drives?
 
It might be helpful to perform some sort of data reduction processing, to open up more data link (and storage) options for this system.
 
-- 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.

这是否必须通过电缆连接到PC？
或者你可以改变FPGA板插入
PC？
每秒500兆字节将限制外部电缆选项。
有外置PCIe，SATA，
10Gb以太网等。
如果你愿意在PC上添加一个framegrabber卡，那么
Camera Link也会这么快。
如果您的FPGA板可以进入PC，那么PCIe x4会
相对容易（特别是与以此速率存储数据相比）。
-  Gabor
-  Gabor



以下为原文

Does this have to go over a cable to the PC? Or can you change the FPGA board to plug into the
PC?  500 megabytes per second will limit the external cable options.  There is external PCIe, SATA,
10Gb Ethernet, among others.  If you're willing to add a framegrabber card to the PC, then
Camera Link will also go this fast.  If your FPGA board can go into the PC, then PCIe x4 would
be relatively easy (especially compared to storing the data at this rate).
 
-- Gabor
-- Gabor