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Visitor iori33
Visitor
801 Views
Registered: ‎02-19-2018

Measuring power consumption with Virtex-7 vc707

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Hello,

 

I am trying to measure the power consumption of custom IC, which is powered by "VADJ_FPGA" from the vc707 board. 

Is there a way to measure it in mW or uW scale?.

 

Thank you.

 

 

 

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1 Solution

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Moderator
Moderator
751 Views
Registered: ‎04-18-2011

Re: Measuring power consumption with Virtex-7 vc707

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https://www.xilinx.com/support/answers/39037.html

 

This AR should help

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5 Replies
Scholar drjohnsmith
Scholar
774 Views
Registered: ‎07-09-2009

Re: Measuring power consumption with Virtex-7 vc707

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put a multi meter on the supply.

 

power ( voltage and current ) measurement is not available in the chips,

 

 

<== If this was helpful, please feel free to give Kudos, and close if it answers your question ==>
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Visitor iori33
Visitor
762 Views
Registered: ‎02-19-2018

Re: Measuring power consumption with Virtex-7 vc707

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It is fabricated and packaged chip I made. I built PCB board to test it.
It is powered by UCD9248 TI chip in Virtex-7 FPGA board. I used the power called "VADJ_FPGA", which is user controllable. I am asking if I can measure the current at a certain operating mode with the code in SDK or I can measure it with multi-meter on which part of the virtex-7 board.
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Moderator
Moderator
762 Views
Registered: ‎04-18-2011

Re: Measuring power consumption with Virtex-7 vc707

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put a multi meter on the supply. power ( voltage and current ) measurement is not available in the chips

 

Please, Don't do that. 

We lost a very faithful VC707 by attempting this very thing...

 

It would be better to hook up the TI power controller and use the GUI software from TI to read the current output from this regulator. 

Vadj would power a number of FPGA IO banks but you could always get an idea of the power consumption on these from XPE and subtract it. 

Keith 

 

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Visitor iori33
Visitor
753 Views
Registered: ‎02-19-2018

Re: Measuring power consumption with Virtex-7 vc707

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Is there any helpful reference regarding the measurement of the Vadj? 

I just need the difference so it will be very helpful if I can find any way of measuring the current of Vadj even though it is connected to 

something else than the custom IC.

 

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Moderator
Moderator
752 Views
Registered: ‎04-18-2011

Re: Measuring power consumption with Virtex-7 vc707

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https://www.xilinx.com/support/answers/39037.html

 

This AR should help

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Don’t forget to reply, kudo, and accept as solution.
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