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i am using ic5141 usr6 and mmsim72 with IBM 0.13 PDK and SMIC cmos090 PDK
when i use cmos090 PDK with default configuration,the resulting line of simulation in the wavescan is solid and is very clear.
But when i use IBM PDK with default configuration,the resulting line of simulation is dotted and i have to change it to solid everytime after the result be plotted.How can i set the default line type in the wavescan no matter which PDK i am using?
Hi minciYou can refer to the "trace variables" section of wavescan manual by clicking here. Here is the setting for .cdsinit file:
envSetVal("wavescan.trace" "lineStyle" 'string "solid")In general, you can look for any environment variables for the tools (schematic editor, layout editor, spectre, ade, etc) in the .cdsenv files following directory:$CDSHOME/tools/dfII/etc/toolsE.g. $CDSHOME/tools/dfII/etc/tools/wavescan/.cdsenvIn case the above does not work, we have an internal solution which gives the following suggestion:
1. Open Display Resources Manager in CIW by selecting Tools ->Display Resources Manager...2. Click "Edit..." in Display Resources Tool Box.3. Change "Tech Lib Name" to ABC.4. Search layers "y0" and modify the display style.5. Re-do step 4 to change "y1" "y2" ........ "y9".6. Save the display setup.
In reply to Quek:
hi,Quek,thanks for help!
I have written the following line in my .cdsinit file of my work directory:
envSetVal("wavescan.trace" "lineStyle" 'string "solid")
and i have found in the .cdsenv file in my $CDSHOME/tools/dfII/etc/tools/wavescan/ has already set wavescan.trace to solid.
but it doesn't work.
then i try the last method and this time it works!
but i' wonder whether changing the layers "y0,y1,y2...." like this will change the layout display,or it just changes the line in the wavescan?
In reply to minci:
i find that when i have changed the y0...etc in the Display Resources Tool Box and go to save. It overrides my display.drf file which was copied from the PDK while making my work directory as the PDK instruction said.Does it matter or not for the display.drf file have been changed?
Hi minciI don't quite understand your reply so let me make a guess. You have copied the display.drf file from the pdk directory to your working directory and after modifying and saving the y0,y1,etc packets, you found that the display.drf file in your working directory has changed. So you are wondering if it matters? May I know if this is your question? It does not matter. display.drf is just for viewing the layout so it can be customized according to your preferences.Best regardsQuek
Your guess is right!
now i can change my display.drf file without worry.
But still, i am somewhat confusing that why i have to change display.drf to modify the line type in the wavescan?
Why the envSet cmd in the .cdsinit file didn't work?
When using wavescan with ADE, it plots signals with the same colour and line style as the corresponding probe in the schematic, to make sure it is obvious which signal is which. Since probing and other schematic layers are controlled by layers in the tech file, and their appearance is controlled via the display.drf, that is what sets the appearance of the lines in wavescan within ADE (as well as the probe colours).
When running wavescan standalone, the .cdsenv settings are used; i.e. it doesn't have the colours overridden by ADE.
In reply to Andrew Beckett:
Thanks all for the above information! That helps when change line color and line style from "dash" to "solid".
However, I also want to change default symbol style and symbol count in wavescan.
I set in .cdsenv as follows:
wavescan.trace symbolsOn string "true"
wavescan.trace symbolStyle string "circle"
wavescan.trace symbolCount string "All points"
Only the first command works. Can display.drf change symbol style and symbol count? And where? Thanks again!