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Hi, I'm trying to generate a LEF file from a layout made in cadence using magic, not sure if magic s...
# magic
x
Hi, I'm trying to generate a LEF file from a layout made in cadence using magic, not sure if magic supports that and what are the steps to take. Thanks.
m
GDS read and then lef write.
x
Thank you!
@Matthew Guthaus thank you for helping, I have a follow up question about technology attachment, I got the error:"Nothing in "cifinput" section of tech file" when I tried to import the layout using "file->read gds" the layout is using skywater130 scs8hvl technology, I'm not sure how to attach the technology in magic.
m
Do you have the PDK setup? Or more specifically, do you have a .magicrc for the sky130 technology?
This is a part of open_pdks which you need for the shuttle. You can grab it in $PDK_ROOT/sky130A/tech.lib/magic/sky130A.magicrc and copy to your local directory as .magicrc
x
Thanks for quick reply, I found the required files in the directory, how should I set it up in magic?
m
"and copy to your local directory as .magicrc"
t
Or use 
magic -rcfile path/to/sky130A.magicrc
, which also works, just more typing on the command line.
x
Thank you very much the layout is imported properly, thanks for the quick replies.
@Tim Edwards Sorry to bother again, I have generated the lef file for the design but there is no pin information in the file anywhere, I had all pins put on pin layers when making the layout. Is there a setup or command I'm missing? "lef write filename -tech -toplayer" was the command I was using. Thanks.
@Tim Edwards Hi, sorry to bother so late, but I tried to flatten the design but the pins are still not showing in the generated lef file do you have any suggestions? Thanks.
t
@Xiangyu Cao: I think you got my other message that what you need to do is run the command 
cif istyle sky130(vendor)
before doing 
gds read
.
x
Yes, I saw the reply, thank you for fast reply so late.
@Tim Edwards I mean thanks for helping at night 😃 sorry if I didn't say it clear.
t
The deadline is approaching, so I have been expecting to put in long hours. : )
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