I use Basys2 board spartan3E 100k with Active HDL of ALDEC to study digital design.
I have meet a problem when I try to implement my VHDL code the Implementation is ended and I have this message : "Warning: Implementation ended with warning(s)."
In the Implementation report I have something like that : "ConstraintSystem - A target design object for the Locate constraint '<NET "an<3>" LOC = "k14";> [sw2led.ucf(37)]' could not be found and so the Locate constraint will be removed."
I have tried to figure out but I don't know where the warning come from : my design is very easy , it consist just to turn on Led with slipe switch.
I think the problem can come from ucf file but why? I have choose the ucf fitted to my design.
Question
Davelynch
Hey every one!
I use Basys2 board spartan3E 100k with Active HDL of ALDEC to study digital design.
I have meet a problem when I try to implement my VHDL code the Implementation is ended and I have this message : "Warning: Implementation ended with warning(s)."
In the Implementation report I have something like that : "ConstraintSystem - A target design object for the Locate constraint
'<NET "an<3>" LOC = "k14";> [sw2led.ucf(37)]' could not be found and so the
Locate constraint will be removed."
I have tried to figure out but I don't know where the warning come from : my design is very easy , it consist just to turn on Led with slipe switch.
I think the problem can come from ucf file but why? I have choose the ucf fitted to my design.
Have you ever met this kind of problem?
Help please!!
I have attached my project if you want to see.
Thanks
Example1.zip
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