怎么读取FPGA上寄存器引脚的内容到PC

x-adi写道：
你好，
任何人都可以帮我读取FPGA上寄存器/引脚的内容到PC。
我唯一的电缆是随Spartan 3E电路板一起提供的USB电缆。
您的请求有几个明显的问题。
a）您没有指定您使用的是哪个Spartan 3E板。
我们无法读懂你的想法。
b）我熟悉的Spartan 3E板使用USB端口连接到FPGA配置逻辑的JTAG。
它不能用作通用USB设备端口。
c）如果您的电路板支持使用USB端口作为通用设备端口，那么您需要做很多工作来确定设备将枚举的USB类。
这超出了简单论坛帖子的范围。
d）如果电路板仅将FPGA端口用于FPGA的JTAG，那么您可以将钱花在ChipScope许可证上，并在FPGA中嵌入ChipScope内核并读出您想要的任何内容。
e）你不清楚“寄存器”的概念。
究竟是什么“注册”是什么意思？
这听起来非常具体。
f）大多数开发板至少具有板载RS232端口，这提供了一种将FPGA连接到主机PC的合理简便方法。
当然，你需要在FPGA中知道如何为串口提供服务的一些智能，并且有几百种方法可以为那些猫提供服务。
情况如下：
1.当“complete_simulation”信号变高时，我想将FPGA中寄存器的内容读入PC。
当我说阅读它不只是使用芯片分数观察FPGA上的信号，而是在我的PC上获取包含读取数据的文本文件。我应该从哪里开始？
我假设“complete_simulation”信号不是功能模拟的一部分（使用ModelSim或ISim），而是你在设计中创建的一些有趣的信号。
再次，见上文。
您需要从FPGA板到PC的路径。
您可能还需要编写一些PC软件。
----------------------------是的，我这样做是为了谋生。



以下为原文

x-adi wrote:
Hello,
 
Can any one please help me with reading the contents of the registers/pins on the FPGA to the PC. The only cable I have is the USB cable that came along with the Spartan 3E board.
 
There are several glaring problems with your request.
a) You didn't specify which Spartan 3E board you're using. We can't read your mind.
b) The Spartan 3E boards with which I am familiar use the USB port for the JTAG connection to the FPGA configuration logic. It can't be used as a general-use USB device port.
c) If your board DOES support using the USB port as a general-use device port, then you've got a lot of work to do to decide what USB Class the device will enumerate as. That's beyond the scope of a simple forum post.
d) If the board only uses the USB port for the FPGA's JTAG, then you could perhaps spend the money on a ChipScope license and embed a ChipScope core in the FPGA and read out whatever you want.
e) You're not clear on the concept of "registers." Exactly what "registers" do you mean? That sounds very application specific.
f) Most development boards have at least an RS232 port on board, which provides a reasonably simply way to connect the FPGA to a host PC. Of course you'll need some smarts in the FPGA that knows how to service the serial port, and there are literally hundreds of ways to skin that cat.
 
 
 
Here is the situation:
 
1. when "complete_simulation" signal goes high I want to read the contents of the register in my FPGA to the PC. When I say read it is not just observing the signals on the FPGA using chip score but gettin a text file containing the read data on my PC. Where should I begin?

I assume that the "complete_simulation" signal is not part of a functional simulation (using ModelSim or ISim) but rather some signal you've created in your design that does something interesting.
 
Again, see the above. You need a path from the FPGA board to the PC. You might need to write some PC software, too.
----------------------------Yes, I do this for a living.

的Bassman，
从xadi的原始帖子中，我得到的印象是xadi（可能）使用的是Spartan-3e Starter板，而他*正在使用ChipScope（虽然他错误拼写为“芯片分数”）通过板载USB平台线缆。
我很可能会弄错，我不认为英语是xadi最喜欢的语言。
由于我没有使用Chipcope许可证（这是我的圣诞老人愿望清单），我无法回答。
也许xadi会澄清这些问题。
- 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。
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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

bassman,
 
From xadi's original post, I got the impression xadi is (probably) using a Spartan-3e Starter board, and he *is* using ChipScope (although he mis-spelled it as "chip score") via the onboard USB platform cable.  I could very well be mistaken, I don't think English is xadi's favourite language.
 
As I do not have a chipscope license (it's on my Santa wish list), I'm not in a position to answer.
 
Perhaps xadi will clarify these questions.
 
-- 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.

如果您拥有ChipScope Pro许可证，则可以使用它将捕获的数据导出到文本文件中。
如果您正在观察像跑步结束这样的一次性事件，这可能是最快捷，最简单的方法。
在菜单中查看保存/导出选项。



以下为原文

If you have a ChipScope Pro license, you can use it to export captured data into a text file. If you're observing a one-off event like the end of a run, this is probably the quickest and easiest way. Have a look in the menu for the save/export options.

值得一试的是ISIM中的硬件协同仿真功能。
您可以在下面的页面底部找到相关的教程：
http://www.xilinx.com/support/documentation/dt_ise13-4_tutorials.htm
x-adi写道：
你好，
任何人都可以帮我读取FPGA上寄存器/引脚的内容到PC。
我唯一的电缆是随Spartan 3E电路板一起提供的USB电缆。
情况如下：
1.当“complete_simulation”信号变高时，我想将FPGA中寄存器的内容读入PC。
当我说阅读它不只是使用芯片分数观察FPGA上的信号，而是在我的PC上获取包含读取数据的文本文件。我应该从哪里开始？
非常感谢您的帮助和指导。
谢谢，
xadi
干杯，吉姆



以下为原文

Something worth trying is the hardware cosimulation feature in ISIM. You can find a tutorial on that at the bottom of the page below:
 
http://www.xilinx.com/support/documentation/dt_ise13-4_tutorials.htm
 

x-adi wrote:
Hello,
 
Can any one please help me with reading the contents of the registers/pins on the FPGA to the PC. The only cable I have is the USB cable that came along with the Spartan 3E board.
 
Here is the situation:
 
1. when "complete_simulation" signal goes high I want to read the contents of the register in my FPGA to the PC. When I say read it is not just observing the signals on the FPGA using chip score but gettin a text file containing the read data on my PC. Where should I begin?
 
Your help and guidance is truly appreciated.
 
 
Thanks,
xadi

Cheers,
Jim