Hello, <@U016EM8L91B>, I have a type of bug with this design, the gds keeps generating and the entir...

Juan Andres

03/21/2023, 11:44 PM

Hello, @Tim Edwards, I have a type of bug with this design, the gds keeps generating and the entire program crashes, but with the N=3 and N=7 oscillator I had no problem, so I don't know what it could be.

inverter_blo.mag inverter.mag

Tim Edwards

03/22/2023, 12:35 AM

Looks like a combination of a bug in the "flatten" command code plus a very poorly-thought out double loop in the GDS write routine (both of which relate to ports, so they're both my fault). Quick description of the problem: The ports in

inverter_blo.mag

got assigned numbers at the upper range of an unsigned integer. Quick fix: Edit inverter_blo.mag and find the two lines:

Copy code

port 1073741821 nsew
port 1073741823 nsew

and change them to

Copy code

port 0 nsew
port 1 nsew

I, for my part, will have to fix both issues in the code.

Tim Edwards

03/22/2023, 2:03 AM

I'm not sure where the port numbers are getting messed up, but I did fix the stupidly coded loop in the GDS write routine, so that won't happen in the future. FYI: You probably should not be writing GDS from a flattened layout. The only reason to flatten a layout is to run full R-C extraction on it. For everything else, you want to keep the hierarchy.

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