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Visitor oncu
Visitor
5,118 Views
Registered: ‎08-07-2015

XADC Pin configuration

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Hello,

   I am trying to read analog signals by using the XADC. I have Zynq-7000 board. I could not find the pin assignment document. To input the analog signal to the 16 channels from, vaux0 to vaux15, how should I make the input connection with the XADC Header?

   Thanks a lot. :)

 

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Xilinx Employee
Xilinx Employee
9,384 Views
Registered: ‎07-23-2012

Re: XADC Pin configuration

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I'm not sure which device you are referring to. Pins with ADxP or ADxN suffix on the I/O name in the package files (can be found at http://www.xilinx.com/support/packagefiles/zynq7000-pkgs.htm) are the aux pins.

You may refer to either zc706 or zc702 board schematics for guidance on how to connect these pins or you may refer to UG480.
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Xilinx Employee
Xilinx Employee
9,385 Views
Registered: ‎07-23-2012

Re: XADC Pin configuration

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I'm not sure which device you are referring to. Pins with ADxP or ADxN suffix on the I/O name in the package files (can be found at http://www.xilinx.com/support/packagefiles/zynq7000-pkgs.htm) are the aux pins.

You may refer to either zc706 or zc702 board schematics for guidance on how to connect these pins or you may refer to UG480.
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Visitor oncu
Visitor
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Registered: ‎08-07-2015

Re: XADC Pin configuration

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Thanks for the answer. It is Z-7020. I saw the link  below:

 

http://microzed.org/sites/default/files/documentations/ZedBoard_RevD.2_Schematic_130516.pdf

 

Still I could not figure out where is bank 35 on the board, how can I make the physical connection of the analog signal with the board?

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Xilinx Employee
Xilinx Employee
4,953 Views
Registered: ‎07-23-2012

Re: XADC Pin configuration

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Can you please share which part you are targeting?

Once you find the pin, you can refer to device diagrams in UG475 to see the physical location of the pins.
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Visitor oncu
Visitor
4,946 Views
Registered: ‎08-07-2015

Re: XADC Pin configuration

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In page 9, for the XC7Z020_CLG_484 in the bank 35, it shows AD(some_number_X)N or P as input pins. I still dont get where they correspond to on the board. 

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2,106 Views
Registered: ‎11-29-2016

Re: XADC Pin configuration

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I have the same problem , did you manage to configure the I/Os to input an anlog singal to the xadc ?
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Community Manager
Community Manager
2,100 Views
Registered: ‎07-23-2015

Re: XADC Pin configuration

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@mohamed.omran 

 

What exactly is your issue? Just share what you are trying to do and board you using to make sure you referring to same board as above. 

 

 

- Giri
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There's no such thing as a stupid question. Feel free to ask but do a quick search to make sure it ain't already answered.
Keep conversing, give Kudos and Accept Solution when you get one.
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2,097 Views
Registered: ‎11-29-2016

Re: XADC Pin configuration

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It is the same board.
I am trying to interface the xadc IP generated from the wizard with the zync 7000 board. I created the system block and implemented the design but I need to know how to sned input on the board itself as an external voltage.
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2,095 Views
Registered: ‎11-29-2016

Re: XADC Pin configuration

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Community Manager
Community Manager
2,089 Views
Registered: ‎07-23-2015

Re: XADC Pin configuration

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@mohamed.omran You need to make the necessary circuit to make sure the input is between 0-1 volt for Unipolar operation. 

 

So based on what you are trying to measure, you may need to scale it using resistor divider network to bring it within the operation range. 

 

Go through UG480 http://www.xilinx.com/support/documentation/user_guides/ug480_7Series_XADC.pdf and it has the necessary details. 

- Giri
--------------------------------------------------------------------------------------------------------------------
There's no such thing as a stupid question. Feel free to ask but do a quick search to make sure it ain't already answered.
Keep conversing, give Kudos and Accept Solution when you get one.
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