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Altera_Forum's avatar
Altera_Forum
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13 years ago

question about writing testbench

Hi all, I wrote a testbench for a full adder. However, the testbench doesnt work. The function of the testbench is, that it tries to read input stimulis from a file called fa_in.txt and outpu...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
13 years ago

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you didnt say what the error is.

But I would suggest having separate processes for input and output.

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Hi,

The error is, that the full adder entity didnt write anything to output file fa_out.txt, and there is no any waveforms in Modelsim editor.