hello guys hope you are doing well. so I want to ask you about a simple design to count the number of '1' in a serial bus. so when I simulate the counter alone it gives the result but when I call it in an other program the output bits stay at "XXXXXXX" so could anyone help me please. thank you.
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bits_counter.JPG
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call_counter.JPG
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result.JPG
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Sorry my english is not so good, you schaltest two 4017 in line and the beiden carry out pins werden OR verknüpft. But one from them must invertiert werden. Than you have eine Teilung durch 10.
thank you for your replay but I didn't understand what you want to say.(it is not a problem if you answer using another language) regards
meido wrote: > so could anyone help me please Check out how a test bench is set up in VHDL (the test bench entity has no ports!). The strategy is much different to what you do. How did you generate the clock? By forcing signals? That's the wrong way, also... BTW: its nearly impossible to edit or cut out source code that's posted as a picture. Here are tools to post code as text, so it can be edited easily....
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Edited by Moderator
thak ou for your relay for the clock generation in the global project it is done using the plls but the code I posted is just to simplify the task. also for the test I already did a test bench but I get the same result
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