Does anyone know a good GUI for visualizing

ngspice

simulation results ? The built in one is ... not great.

load preamp_2.mag flatten preamp_flat load preamp_flat extract all ext2sim labels on ext2sim extresist tolerance 10 extresist all ext2spice lvs ext2spice cthresh 0 ext2spice extresist on ext2spice

Hello all, Hope everyone here is well I have a basic doubt from xschem can anyone suggest me that how can I give the sine input voltage source in xschem circuit ?

TSMC has announced 16nm university program. You guys have to be real fast to keep the community with efabless. Otherwise, 16nm vs 130nm will be lost battle.

@Stefan Schippers: I was asked today how to export a graph---just the graph---from xschem. I found a roundabout way to do it, but it's a bit of a hack. I found that the graph will load from any raw file that has the same name as the schematic. So I created a new empty schematic named, say, "graph_test", placed just a single graph in it, copied the raw file to "graph_test.raw", loaded the data, configured the graph to what I wanted, and exported it. Did I miss some more direct way to do that? If there isn't a more direct way to do it, could you please add such a method? How about the ability to title the graph? (The ultimate export would be a dump of all the data into a python script that then configures itself to the contents of the graph using matplotlib, but that's probably asking way too much. . .).

When i install ngspice and try to execute the command ../configure --with-x --with-readline=yes I am getting an error "configure: error: Couldn't find GNU readline headers. " Can anyone help me how to fix this, I did try to install "sudo apt-get install lib32readline8 lib32readline-dev sudo apt-get install libxaw7-dev "and still unable to resolve the error And when I give $MAKE command it isn't able to execute even though the file contains make file Git repo link that i cloned: git clone git://git.code.sf.net/p/ngspice/ngspice Website link that i referred : https://ngspice.sourceforge.io/gitaccess.html (The Pre master command also hadn't executed)

Has anyone used the XSPICE extension of NGSPICE? If so, how would you rate your experience with XSPICE?

Hello everyone, I'm learning how to use PySpice to simulate circuits using the PDK sky130, but first I'm just starting with this doc example. The issue is that I'm getting following errors and I don't know why.

Traceback (most recent call last):
  File "/home/nelson/myreps/obsidian-vault/PRACTICE/PYSPICE/pyspice-engineeringthings/tutorial/tutorial2.py", line 28, in <module>
    analysis = simulator.operating_point()
  File "/home/nelson/myreps/obsidian-vault/PRACTICE/PYSPICE/pyspice-engineeringthings/tutorial/lib/python3.10/site-packages/PySpice/Spice/Simulation.py", line 1194, in operating_point
    return self._run('operating_point', *args, **kwargs)
  File "/home/nelson/myreps/obsidian-vault/PRACTICE/PYSPICE/pyspice-engineeringthings/tutorial/lib/python3.10/site-packages/PySpice/Spice/NgSpice/Simulation.py", line 76, in _run
    raw_file = self._spice_server(spice_input=str(self))
  File "/home/nelson/myreps/obsidian-vault/PRACTICE/PYSPICE/pyspice-engineeringthings/tutorial/lib/python3.10/site-packages/PySpice/Spice/NgSpice/Server.py", line 162, in __call__
    return RawFile(stdout, number_of_points)
  File "/home/nelson/myreps/obsidian-vault/PRACTICE/PYSPICE/pyspice-engineeringthings/tutorial/lib/python3.10/site-packages/PySpice/Spice/NgSpice/RawFile.py", line 170, in __init__
    raw_data = self._read_header(stdout)
  File "/home/nelson/myreps/obsidian-vault/PRACTICE/PYSPICE/pyspice-engineeringthings/tutorial/lib/python3.10/site-packages/PySpice/Spice/NgSpice/RawFile.py", line 192, in _read_header
    self.circuit_name = self._read_header_field_line(header_line_iterator, 'Circuit')
  File "/home/nelson/myreps/obsidian-vault/PRACTICE/PYSPICE/pyspice-engineeringthings/tutorial/lib/python3.10/site-packages/PySpice/Spice/RawFile.py", line 243, in _read_header_field_line
    raise NameError("Expected label %s instead of %s" % (expected_label, label))
NameError: Expected label Circuit instead of Note

The error may come because my executable path of ngspice is

/home/nelson/cad/bin/ngspice

and I tried to modify it according to this doc part but nothing:

simulator = circuit.simulator(temperature=25, nominal_temperature=25, spice_command='/home/nelson/cad/bin/ngspice')

Could anyone help me with that? @proppy maybe could you give me some ideas about it?

Hi @Stefan Schippers , I was trying to install xschem on my windows 10 using WSL. I followed every steps as you mentioned in your youtube tutorial. However, after completing the installation process, when I try to run xschem the xschem window does not pop up. Rather I get a ‘%’ sign in the terminal and then nothing happens. Do you have any idea why this might happen or any suggestions to solve this?

How is the local interconnect different from a metal layer ?