Has anyone encountered an issue with pins not conn...
# magic
m
Has anyone encountered an issue with pins not connecting to a hierarchical circuit in magic? My problem is that when I extract a spice netlist from my layout, the pins which I am connecting to the top level are not showing up as connected to the toplevel in any way. I created the circuit from a unit instance where the pins are both a label and a port. In the top level circuit, however, I only added labels for the pins at the top level and did not make them ports. I also extracted the spice netlist in the following way:
Copy code
extract all
ext2spice lvs
ext2spice
m
Use port shapes on each hierarchy along with labels.
1
m
I added the ports at each hierarchy along with the labels and I still had a problem. However, when I also added a small bit of relevant metal layer at the top level under the pins, that seemed to fix my problem. Is this expected? I didn't realize I would need to repaint top metal at each level of the hierarchy to attach pins