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direction of signals in rtl viewer

CosmoKramer
Employee
672 Views

this is from quartus rtl viewer. would like to learn how to read this diagram. 

Q is output of the flop. but why does the black arrow (circled with blue) point towards Q like it is an input to flop. 

it looks like data from mux is input into flop at Q, which is not correct. 

please help me understand this.

Thanks Y'all

ff.png

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sstrell
Honored Contributor III
661 Views

What does the vertical wire connected to that point go to?

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CosmoKramer
Employee
658 Views

ff2.png

Here is the picture showing the vertical line. It looks like it is going to a mux.  but i am not sure. 

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SyafieqS
Moderator
648 Views

Hi Sandhya,


Assuming no issue with your HDL, does your rtl behave as expected if you ignore that? What Quartus type and version you are using? 


Thanks,

Regards


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