ADC传入的数据可以在Spartan PFGA上直接处理吗？

我在考虑使用ADC。
做 
您认为使用解码器ASIC更好吗？
哪个是优点，
除了在FPGA上实现的功能较少外？
如果您想了解模拟视频，采样系统和滤波器，时钟生成等，那么请使用具有您自己设计的“哑”ADC进行钳位和同步剥离以及PLL和梳状滤波器以及抗混叠滤波器。
如果您需要视频解码器/转换器，以便您可以构建产品或了解视频处理，请购买ASIC。
我在哪里可以了解
包视频？
发送视频最常用的数据格式是什么？
通过PCIe？
PC期望的格式是什么？
或者它没有“期待”我
决定它，PC将通过软件处理发送的格式
由我？
我会让别人帮你解决这个问题。
它太开放了，我目前没有足够的第一手经验。
使用网络！
以下是查找多媒体ASIC的一些起点。
有些具有PCI或PCIe接口。
恩智浦（原飞利浦）
Analog Devices
Intersil公司/特威
博通
科胜讯
和其他人......很多很多的选择。
- 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。
在原帖中查看解决方案



以下为原文

I was thinking about using an ADC. Do you think is better to use a decoder ASIC? Which are the advantages, besides having less functions to implement on the FPGA?

If you want to learn about analogue video, sampling systems and filters, clock generation, etc. then use a "dumb" ADC with your own design for clamping and sync stripping and PLL and comb filter and anti-aliasing filters.



If you want a video decoder/converter so you can build a product or learn about video processing, buy an ASIC.

Where can I learn about packetised video? What is the most common data format for sending video through PCIe? What format is a PC expecting? Or it doesn't "expect" I decide on it and the PC will, through software, process the format sent by me?

I'll let someone else help you on this.  It's too open-ended, and I don't have enough current first-hand experience in this area.  Use the web!
 
Here are some starting points for finding multimedia ASICs.  Some have PCI or PCIe interfaces.
NXP (formerly Philips)
Analog Devices
Intersil/Techwell
Broadcom
Conexant
 
and others...  lots and lots of choices.
 
-- 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.View solution in original post

嗨，
如果视频信号以足够高的速率对所需的带宽进行采样（例如，大约20 MSPS），FPGA应该能够对其进行处理。
但是，如果要访问真正的像素数据，则需要在FPGA内部进行解码，如搜索同步脉冲等。
逻辑量取决于您的设计目标。
您刚才提到向FPGA提供一些数据，但是您要对这些数据做些什么呢？
有一个很好的综合 
Eilert



以下为原文

Hi,
if the video signal is sampled at a high enough rate for the required bandwitdh (e.g sth. around 20 MSPS), the FPGA should be able to process it. However, you need to do the decoding inside the FPGA then, like searching for the synchronisation pulses etc. if you want to access the true pixel data.
 
The amount of logic depends on what your design goal is.
You just mentioned feeding the FPGA with some data, but what you are going to do with that data?
 
Have a nice synthesis
  Eilert

数据可以来自转换电视模拟信号的ADC（
组分或复合材料，例如
PAL，NTSC等）直接处理（即 
在Spartan PFGA上发送过PCIe）还是需要视频解码器？
为了讨论的目的，我们将其分解为3个单独的问题。
1.转换为数字。
这是一天完成的，这是一个很好理解的艺术。
廉价的多格式视频解码器和数字化ASIC很容易获得。
每19“液晶电视机中都有这样的ASIC，带有复合和模拟分量输入。不要忘记音频和视频信息。
无需存储和转发垂直和水平消隐间隔（包括同步脉冲）。
有充分记录的标准数字视频格式和编码标准，包括压缩和未压缩。
你需要学习这些。
2.通过PCIe传输和接收。
这也是一种常见做法。
您需要选择一种数据格式。
了解分组视频。
有压缩和未压缩格式。
在某种程度的抽象中，它不是PCIe频道上的视频......它只是数据。
3. FPGA中的视频处理
您没有指定您有兴趣执行的视频处理，但您可以通过FPGA直接处理通过x1 PCIe发送的任何内容。
如果您可以弄清楚如何将视频编码为数据包并通过PCIe传输数据包，您还将了解如何接收和解码数据包回到视频（和音频）。 
怎么样
需要多大的逻辑？
取决于您的功能集。
有许多以视频为中心的开发板可用于构建，调试和评估您自己的功能集。
上述列表中的3个问题中的每一个都是一项重大任务。
首先，您需要了解原理和技术，然后您需要根据功能和数据路径设计功能。
最后，您需要将设计转换为工作代码和元件选择以及电路板。
您所描述的不是一个简单的6个月设计项目，除非您已经完成了非常类似的事情。
希望这对你有所帮助。
- 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

Can data comming from an ADC which converts TV analogue signals( component or composite, e.g. PAL, NTSC, etc) be directly processed (i.e. sent over PCIe) on an Spartan PFGA or do I need a video decoder?

Let's break this down to 3 separate problems, for the purposes of discussion.
 
1.  Conversion to digital.
 
This is done very day, it's a well-understood art.  Inexpensive multi-format video decoder and digitisation ASICs are readily available.  There is such an ASIC in every 19" LCD TV set with composite and analogue component inputs. Don't forget audio as well as video information.
 
There is no need to store and forward the vertical and horizontal blanking intervals (including sync pulses).
There are well-documented standard digital video formats and coding standards, both compressed and uncompressed.  You will need to learn these.
 
2.  Transmission and reception over PCIe.
 
This is also a common practice.  You will need to select a data format.  Learn about packetised video.
There are compressed and uncompressed formats.  At a certain level of abstaction, it's not video on the PCIe channel... it's just data.
 
3.  Video processing in FPGA
 
You don't specify what video processing you are interested in performing, but anything you can send over x1 PCIe can be "directly processed" in the FPGA, in real time.  If you can figure out how to encode the video into packets and transmit the packets over PCIe, you'll also understand how to receive and decode the packets back into video (and audio).

How much logic will it take?

Depends on your feature set.  There are a number of video-centric development boards available for building, debugging, and evaluating your own feature set.
 
Each of the 3 problems in the above list is a major undertaking all by itself.  First you need to understand the principles and technologies, then you need to design the function in terms of features and datapaths.  Finally you need to convert your design to working code and component selection and circuit boards.
 
What you have described is not a straightforward 6-month design project, unless you've done very similar things already.
 
Hope this helps you.
 
-- 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.

嗨，
感谢您的回复，一如既往的伟大，我的意思是您甚至比我更好地陈述了问题。
话虽如此，我有几个问题：
1.转换为数字。
我在考虑使用ADC。
您认为使用解码器ASIC更好吗？
除了在FPGA上实现的功能较少外，哪些优点是什么？
2.通过PCIe传输和接收。
这也是一种常见做法。
您需要选择一种数据格式。
了解分组视频。
有压缩和未压缩格式。
在某种程度的抽象中，它不是PCIe频道上的视频......它只是数据。
这是另一个方面，我不清楚。
我在哪里可以了解分组视频？
通过PCIe发送视频的最常见数据格式是什么？
PC期望的格式是什么？
或者它没有“期待”我决定它，PC将通过软件处理我发送的格式？
再次感谢



以下为原文

Hi,
 
Thanks for your response, great as always, I mean you even stated the problem better than me. That being said I have a couple of questions:
 
1.  Conversion to digital.


I was thinking about using an ADC. Do you think is better to use a decoder ASIC? Which are the advantages, besides having less functions to implement on the FPGA?
 
2.  Transmission and reception over PCIe.
 
This is also a common practice.  You will need to select a data format.  Learn about packetised video.
There are compressed and uncompressed formats.  At a certain level of abstaction, it's not video on the PCIe channel... it's just data.
 
This is another aspect that's not clear to me. Where can I learn about packetised video? What is the most common data format for sending video through PCIe? What format is a PC expecting? Or it doesn't "expect" I decide on it and the PC will, through software, process the format sent by me?
 
Thanks again

我在考虑使用ADC。
做 
您认为使用解码器ASIC更好吗？
哪个是优点，
除了在FPGA上实现的功能较少外？
如果您想了解模拟视频，采样系统和滤波器，时钟生成等，那么请使用具有您自己设计的“哑”ADC进行钳位和同步剥离以及PLL和梳状滤波器以及抗混叠滤波器。
如果您需要视频解码器/转换器，以便您可以构建产品或了解视频处理，请购买ASIC。
我在哪里可以了解
包视频？
发送视频最常用的数据格式是什么？
通过PCIe？
PC期望的格式是什么？
或者它没有“期待”我
决定它，PC将通过软件处理发送的格式
由我？
我会让别人帮你解决这个问题。
它太开放了，我目前没有足够的第一手经验。
使用网络！
以下是查找多媒体ASIC的一些起点。
有些具有PCI或PCIe接口。
恩智浦（原飞利浦）
Analog Devices
Intersil公司/特威
博通
科胜讯
和其他人......很多很多的选择。
- 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

I was thinking about using an ADC. Do you think is better to use a decoder ASIC? Which are the advantages, besides having less functions to implement on the FPGA?

If you want to learn about analogue video, sampling systems and filters, clock generation, etc. then use a "dumb" ADC with your own design for clamping and sync stripping and PLL and comb filter and anti-aliasing filters.



If you want a video decoder/converter so you can build a product or learn about video processing, buy an ASIC.

Where can I learn about packetised video? What is the most common data format for sending video through PCIe? What format is a PC expecting? Or it doesn't "expect" I decide on it and the PC will, through software, process the format sent by me?

I'll let someone else help you on this.  It's too open-ended, and I don't have enough current first-hand experience in this area.  Use the web!
 
Here are some starting points for finding multimedia ASICs.  Some have PCI or PCIe interfaces.
NXP (formerly Philips)
Analog Devices
Intersil/Techwell
Broadcom
Conexant
 
and others...  lots and lots of choices.
 
-- 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.