Comments (1)
The vsource.sym
is not a sky130 specific device, it is a generic SPICE voltage source. It is packaged with xschem.
How did you install xschem? the recommended way to install xschem is to build from sources, using the repository here. If you installed the xschem from ubuntu app store please remove this installation since the packaged versions are too old (sudo apt purge xschem
)
If you are new to all this please start from simple examples, the reram is the most difficult thing ever, and it is not yet fully functional due to a lot of various reasons:
- ngspice switching from adms to osdi verilog-A libraries
- the verilog-A model is not fully debugged and needs patches.
- Many users submit patches to the verilog-A model tying to solve one problem and introducing other problems, like convergence issues and such.
The flow to use xschem with sky130 is the following, all from github repositories (sourceforge for ngspice):
- Install the Magic layout editor
- Install xschem,
- Install open_pdks, that itself brings in skywater 130 libraries, including xschem_sky130 symbols
- Install ngspice
All above details are explained in this xschem manual page:
When done create a new directory, copy the xschemrc template from the open_pdks installation and start xschem from within that directory.
mkdir test_sim
cd test_sim
cp .../share/pdk/sky130A/libs.tech/xschem/xschemrc .
xschem
from xschem_sky130.
Related Issues (17)
- Error running xshem from xschem_sky130 directory HOT 4
- ./bin/xschem not working while running from xschem_sky130 directory HOT 1
- patch problem for sky130 in xschem HOT 2
- Directions to import other librariers (spice or verilog) HOT 4
- Resistor models contain an error. Fix provided. HOT 6
- ngspice run error HOT 1
- Can't find sky130_fd_sc_hd.spice HOT 2
- test_inv.sch references $::SKYWATER_MODEL but when you run a NGSPICE simulation it does not exist HOT 4
- .xschemrc is not present after installing skywater HOT 4
- is there an example of a circuit, ready for layout? HOT 1
- Installation of magic and skywater pdk HOT 1
- Underlying transistor-based schematics of sky130_stdcells HOT 8
- Simulating sky130_stdcells in xschem & ngspice HOT 4
- `XSCHEM_LIBRARY_PATH` issue with default symbols HOT 10
- PDK_ROOT environment variable path not found HOT 5
- Symbol error found HOT 4
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from xschem_sky130.