Hello I have a type of bug with this design t

Question

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

Tim Edwards · Answer

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 ```port 1073741821 nsew port 1073741823 nsew``` and change them to ```port 0 nsew port 1 nsew``` I for my part will have to fix both issues in the code

Tim Edwards · Answer

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