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Visitor
Visitor
18,015 Views
Registered: ‎02-06-2009

How to assign pins to data bus in ucf file

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Hi!

     I got an 16 bit data A(15:0) which I want to take out as output from my FPGA xc2Vp30 board. Can anyone tell me how to assign pins for the data bus in ucf file?

 

 

Milan

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Xilinx Employee
Xilinx Employee
22,223 Views
Registered: ‎08-13-2007

The format is:

NET <SIGNAL_NAME> LOC = <PIN#>;

e.g.

NET  "ddr2_dq[0]"                                LOC = "C20" ;       #Bank 23

 

More information is available here:

http://toolbox.xilinx.com/docsan/xilinx10/books/docs/cgd/cgd.pdf (Constraints Guide)

 

There are also many examples in the reference designs for some of the boards, e.g. ML300, ML405, ML505,Spartan-3A Starter Kit, etc. e.g.

http://www.xilinx.com/products/boards/ml505/reference_designs.htm

 

bt

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Xilinx Employee
Xilinx Employee
22,224 Views
Registered: ‎08-13-2007

The format is:

NET <SIGNAL_NAME> LOC = <PIN#>;

e.g.

NET  "ddr2_dq[0]"                                LOC = "C20" ;       #Bank 23

 

More information is available here:

http://toolbox.xilinx.com/docsan/xilinx10/books/docs/cgd/cgd.pdf (Constraints Guide)

 

There are also many examples in the reference designs for some of the boards, e.g. ML300, ML405, ML505,Spartan-3A Starter Kit, etc. e.g.

http://www.xilinx.com/products/boards/ml505/reference_designs.htm

 

bt

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Visitor
Visitor
18,006 Views
Registered: ‎02-06-2009

Thanks a lot bt. It worked.

 

Milan

 

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