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VHDL - ask for help :simulation problem |
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08-17-2004, 09:08 AM
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#1 |
ask for help :simulation problem
I am using XILINX ISE 6.1 and Modelsim_xe for simulation. when I run the
simulation I get follwoing warning. Warning: There is an 'U'|'X'|'W'|'Z'|'-' in an arithmetic operand, the result will be 'X'(es). Now when I see the WAVE window I get 'Z' in every signal. How do I find out what is creating the problem. Thanks for any help. smilebamboo smilebamboo |
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08-17-2004, 11:58 AM
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#2 |
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Posts: n/a
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Re: ask for help :simulation problem
Hi S,
It seems that u hv not initialised the all signal , variables or ports. With this error u will be getting the time also at which the error is generated. U can check the signal at that time in your sim window. further if u r using async reset , then pl assign a value to each n every signal, var or o/p in that particular process at reset. Hope that it will be helpfull. Regards anupam |
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08-18-2004, 03:54 AM
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#3 |
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Posts: n/a
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Now it is OK!
Thank you again!
And now I have known what is the wrong ! Happy to everybody! smilebamboo |
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08-18-2004, 03:54 AM
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#4 |
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Posts: n/a
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Now it is OK!
Thank you again!
And now I have known what is the wrong ! Happy to everybody! smilebamboo |
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