Hi, Someone who can help me, I'm supposed to have ...
# xschem
j
Hi, Someone who can help me, I'm supposed to have the latest open pdk, but I still don't get the resistor values
s
@Juan Andres upstream xschem-sky130 has resistor symbols showing the resistance value as calculated from W and L geometry (this is an approximate value!). If you don't see the value you are probably using a container with an older version or xschem sky130 symbols.
j
i updated the pdk, but now the xschem got unconfigured, I cant see skywater
s
create a directory (example:
mkdir testdir
) and copy the pdk xschemrc file into it:
cp ...../share/pdk/sky130A/libs.tech/xschem/xschemrc testdir
, then cd into testdir and start xschem from there...
j
this file it empty, why?
my design looks like this
m
For some reason, it’s not finding
ngspice_get_value.sym
, but does find the other primitive devices. Can you check the path? Select a device and press
q
. See if you can see a difference between the
ngspice_get_value
and other devices that are displayed correctly.
s
@Juan Andres send the schematic (.sch) file, send your xschemrc file. Try to add this line at the bottom of your xschemrc file:
append XSCHEM_LIBRARY_PATH :${XSCHEM_SHAREDIR}/xschem_library/devices
If nothing changes add this:
append XSCHEM_LIBRARY_PATH :${XSCHEM_SHAREDIR}/xschem_library:${XSCHEM_SHAREDIR}/xschem_library/devices
when some devices symbols appear (like vsource.sym) and some do not (ngspice_get_value.sym) this means the schematic is screwed up. It has been edited multiple times with different library search path setups.
you may try to do a 'q' on a missing symbol and add
devices/
in front to the symbol name in the Symbol text box.
j
Thanks