是否可以同时启动所有电源或者电源之间是否有时序要求？

- 可以启动所有电源（1.2V，2.5V，3.3伏）
同时或是否有供应之间的时间要求？
这称为电源排序。
从Spartan 6数据表DS162，v1.11，表6，注2：
Spartan-6 FPGA在上电期间需要一定量的电源电流，以确保正确的器件初始化。
消耗的实际电流取决于电源的上电斜率。
使用XPOWER Estimator（XPE）或XPOWER Analyzer（XPA）工具估算这些电源的电流消耗。
Spartan-6器件没有所需的上电顺序。
- 我将使用FPGA将数据从A / D转换器“路由”到
存储器：4通道，22.5 MHz单位。
你们中的任何人都有预感
关于每个电源的功率要求是什么 
在这种情况下？
（+/- ~30％很好 - 只是预感会很有帮助）。
您应该计划检查电路板上每个组件的数据表，以便最大限度地消耗每个电源轨上的电流。
对于XC6SLX设备，您可以使用两种工具：
Xilinx功耗估算器（XPE） - 您可以使用此Excel电子表格工具在设计完成之前估算FPGA功耗。
这是XPE用户指南。
Xilinx功率分析仪 - 从ISE内部调用，分析放置和布线设计的功耗。
- 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。
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以下为原文

- Can all power supplies (1.2V, 2.5V, 3.3 volts) be started simultaneously or is there a timing requirement between the supplies?
This is called power supply sequencing.  From the Spartan 6 datasheet DS162, v1.11, Table 6, Note #2:

Spartan-6 FPGAs require a certain amount of supply current during power-on to insure proper device initialization. The actual current consumed depends on the power-on ramp rate of the power supply. Use the XPOWER Estimator (XPE) or XPOWER Analyzer (XPA) tools to estimate current drain on these supplies. Spartan-6 devices do not have a required power-on sequence.

- I'll be using the FPGA to "route" data from an A/D converter to memory: 4 channels single- bit at 22.5 MHz. Any of you have a hunch about what the power requirements for each of the power supplies will be in this case? (+/- ~30% is fine - just a hunch will be helpful).
 
You should plan on checking the datasheets of each of the components on your board, for maximum current drain on each supply rail.  For the XC6SLX device, you have two tools at your disposal:
 

• The Xilinx Power Estimator (XPE) - you use this Excel spreadsheet tool to estimate FPGA power consumption before your design is complete.  Here is the XPE user guide.
  

• Xilinx Power Analyzer - this is invoked from within ISE, and analyses power consumption of a placed and routed design.
  

- 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.

参考Spartan 6数据表DS162，v1.11，表6，注2：
我没有看到启动/配置/冲入电流
在任何数据表或应用说明中对Spartan-6的要求，包括
XPE电子表格。
你能不能给我一些关于启动电流的信息
每种电源在器件温度范围内的要求，以及如何
这些要求是否受电源斜率的影响？
谢谢



以下为原文

In reference to the Spartan 6 datasheet DS162, v1.11, Table 6, Note #2:
 
I do not see the startup/configuration/in-rush currentrequirement for the Spartan-6 in any of the data sheets or appnotes, includingthe XPE spreadsheet. Can you please provide me some info on the startup currentrequirements for each supply over the device's temperature range, and howthese requirements are affected by the power supply ramp rate?
 
Thanks
 
 

我没有看到启动/配置/冲入电流
在任何数据表或应用说明中对Spartan-6的要求，包括
XPE电子表格。
你能不能给我一些关于启动电流的信息
每种电源在器件温度范围内的要求，以及如何
这些要求是否受电源斜率的影响？
这是一个学术（学校）问题，还是你有一个产品设计，这是一个重要的考虑因素？
-  Bob Elkind（不是Xilinx员工）
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 do not see the startup/configuration/in-rush currentrequirement for the Spartan-6 in any of the data sheets or appnotes, includingthe XPE spreadsheet.  Can you please provide me some info on the startup currentrequirements for each supply over the device's temperature range, and howthese requirements are affected by the power supply ramp rate?

Is this an academic (school) question, or do you have a product design for which this is an important consideration?
 
- Bob Elkind (not a Xilinx employee)
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.

这不是学术性的，而是产品设计的。 
我过去曾研究过具有大功率电流要求的Virtex-5设计，即考虑Virtex 5 XC5VLX330T器件。
在DC＆amp;
切换数据表DS202（v5.3），页码
6，表5：Virtex-5的上电电流
器件初始化的器件最小电流值列为1.5 A，0.706 A和0.150 A.
Virtex-5的上电电流要求
DS202中的器件，表5，我没有看到给出的等效要求
DS162或其他任何地方的Spartan-6器件。
这些信息在哪里？
谢谢



以下为原文

This is not academic but for a product design.
 
I have worked on Virtex-5 designs in the past that have large power-up current requirements, i.e. consider the Virtex 5 XC5VLX330T device. In the DC &Switching datasheet DS202 (v5.3), pg. 6, Table 5: Power-on Current for Virtex-5Devices minimum current values for proper device initialization are listed as 1.5 A, 0.706 A, and 0.150 A.
 
Power-on current requirements are given for the Virtex-5devices in DS202, Table 5, I do not see the equivalent requirements given forthe Spartan-6 devices in DS162 or anywhere else. Where is this info available?
 
Thanks

这不是学术性的，而是产品设计的。
好的，这很好......
我不为Xilinx工作（至少，这就是我认为的情况，因为我也认为我不为联邦***工作，尽管我有时会怀疑）。
Xilinx表示，Spartan-6系列器件中不存在令人不快的电源排序和偶然出现在某些先前FPGA系列/代中的“浪涌”电流特性。
基于我自己的S-6板设计，我没有理由怀疑这些断言。
事实上，我认为初始上电电源电流是由我的电路板/电源设计中的去耦电容驱动的，而不是FPGA芯片的任何特殊特性。
请注意，我设计的所有电源都是低成本的800KHz和1.5MHz切换器，具有软启动功能。
这些电源设计是当今技术的典型代表。
我没有看到折返或电流限制或电流尖峰或FPGA锁定的任何迹象。
上电和自我配置是我可能期望的坚实。
完全基于我的经验，只要您使用标准的数字逻辑板设计实践，我就会说您在此方面无后顾之忧。
- 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

This is not academic but for a product design.

OK, this is good...
I do not work for Xilinx (at least, that's what I think is the case, because I also think I don't work for the federal government even though I sometimes have my doubts).
 
Xilinx has said that unpleasant supply sequencing and "inrush" current characteristics which were occasionally manifested in some previous FPGA families/generations are NOT present in the Spartan-6 family parts.  Based on my own S-6 board designs, I have no reason to doubt these assertions.  In fact, I believe the initial power-up supply currents are driven by the decoupling capacitance in my board/power supply design, rather than any peculiar characteristic of the FPGA silicon.
 
Note that all of the supplies in my design are low-cost 800KHz and 1.5MHz switchers with soft-start features.  These supply designs are pretty typical of today's technology.  I've seen no signs whatsoever of foldback or current limits or current spikes or FPGA lockup.  Power-up and self-config is as solid as I could possibly expect.
 
Based purely on my experience, I would say you have no worries in this area as long as you use standard digital logic board design practices.
 
- 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.