open-source-silicon #magical

Sorry. We have also modified the device layer IDs for our own convenience. So I also upload my lylvs script. Otherwise than the layerIDs (datatypeIDs) the process should be identical.

Barry Muldrey

01/13/2022, 8:21 PM

@User has left the channel

Marwan Abbas

01/18/2022, 4:08 PM

https://github.com/marwaneltoukhy/KLayout_Support_for_Sky130A

Marwan Abbas

01/18/2022, 4:12 PM

DRC deck: https://github.com/RTimothyEdwards/open_pdks/blob/master/sky130/klayout/sky130A_mr.drc

Marwan Abbas

01/18/2022, 4:12 PM

LVS deck: https://github.com/marwaneltoukhy/KLayout_Support_for_Sky130A/blob/main/lvs/sky130A.lvs

mkk

01/18/2022, 4:33 PM

magic	export TOOLS=/ciic/tools
	mkdir git
	cd $TOOLS/git; \
	git clone <git://opencircuitdesign.com/magic> magic ; \
	cd magic; \
	./configure --prefix=$TOOLS/magic; \
	make; \
    make install

netgen:

	cd /ciic/tools; \
	git clone <git://opencircuitdesign.com/netgen>; netgen-netgen
	cd netgen; \
	./configure; \
	make; \
	sudo make install

mkk

01/18/2022, 4:52 PM

s8.layers.xlsx

Keren Zhu

01/23/2022, 9:22 PM

I wonder if anyone knows about the correct way to set datatype for PIN layers. It seems like on the PDK spec., the PIN layers for metals are with datatype 16, and it's fine on our side now. But I noticed that then the resulting GDS cannot be opened by Klayout. I search online and find Klayout assume TEXT objects have no datatype fields. I wonder if you can confirm what is the expected handling on this.

Keren Zhu

01/24/2022, 1:00 AM

Or we are supposed to use TextType instead Datatype for the text objects?

Marwan Abbas

01/24/2022, 5:48 PM

Hi @User, there are two types, datatype 16 is for the pin layer and datatype 5 is for the text/label layer, klayout should be able to read both. You might want to use these klayout tech files to read the GDS layers correctly https://github.com/RTimothyEdwards/open_pdks/tree/master/sky130/klayout

mkk

01/25/2022, 2:07 PM

klayout -c $SAK/klayout/tech/sky130A/sky130A.krc -nn $SAK/klayout/tech/sky130A/sky130A.lyt -l $SAK/klayout/tech/sky130A/sky130A-eft.lyp

mkk

01/25/2022, 2:09 PM

sky130A.lyt

mkk

01/25/2022, 2:09 PM

sky130A-eft.lyp

mkk

01/25/2022, 2:18 PM

mkdir ~/tools
       git clone <git://opencircuitdesign.com/magic>
	cd magic
	./configure --prefix=~/tools
	make
    make install

mkk

01/25/2022, 2:23 PM

git clone <git://opencircuitdesign.com/netgen>
cd netgen
./configure --prefix=~/tools/netgen
make
make install

mkk

01/25/2022, 2:45 PM

########################################################
###### Magic netlist extraction
########################################################

export MAGIC=magic
export PDKPATH=$PDK_ROOT/sky130A ; 
export MAGTYPE=mag

MAGTYPE=$MAGTYPE $MAGIC -dnull -noconsole -rcfile $PDKPATH/libs.tech/magic/sky130A.magicrc  << EOF

path search [concat "../${MAGTYPE}" [path search]]
crashbackups stop
drc off
gds readonly true
gds flatten true
gds rescale false
tech unlock *
cif istyle sky130(vendor)
gds read ../gds/$1
load ${1%.gds} -dereference
select top cell
#lef read  $PDK_ROOT/openlane/sky130A/libs.ref/sky130_fd_sc_hd/lef/sky130_fd_sc_hd.lef
#readspice $PDK_ROOT/openlane/sky130A/libs.ref/sky130_fd_sc_hd/cdl/sky130_fd_sc_hd.cdl}
#extract no all
extract do local
extract all
ext2spice lvs
ext2spice -o ./netlists/gds-extracted-${1%.gds}.spice
EOF

mkk

01/25/2022, 2:48 PM

magic.tar.tar.gz

mkk

01/25/2022, 3:08 PM

netgen.tar.gz

Keren Zhu

01/25/2022, 3:39 PM

gds-extracted-OTA_2_flat.spice,ota2.sp

gds-extracted-OTA_2_flat.spice ota2.sp

Mingjie Liu

02/09/2022, 4:15 PM

TOP.gds,extract.sh,gds-extracted-TOP.spice

extract.sh gds-extracted-TOP.spice TOP.gds

mkk

02/09/2022, 4:18 PM

magic -rcfile $PDK_ROOT/sky130A/libs.tech/magic/sky130A.magicrc

mkk

02/09/2022, 4:43 PM

load spm
flatten spm_flat
load spm_flat
select top cell
extract do local
extract all
ext2sim labels on
ext2sim
extresist tolerance 10
extresist
ext2spice lvs
ext2spice cthresh 0
ext2spice extresist on
ext2spice

Marwan Abbas

02/14/2022, 12:08 PM

@User @User Hello, I wanted to ask about the DRC issue you're facing. First of all are you using this DRC deck https://github.com/RTimothyEdwards/open_pdks/blob/master/sky130/klayout/sky130A_mr.drc? This is our latest DRC deck. If you are, then this DRC error you have is real, as this deck was tested on many designs. The Magic DRC deck is not a full MR deck, that's why it's better to always use both klayout and magic to double check.

Mingjie Liu

02/14/2022, 9:54 PM

I am using the one here: https://github.com/mabrains/sky130_klayout_pdk/commits/main

Mingjie Liu

02/14/2022, 9:54 PM

I will take a look at the new one.

Mingjie Liu

02/14/2022, 10:09 PM

@User Can I have a way to run the DRC scripts. I am receiving an issue with line 202: if p.holes >= (min || 0) && (!max || p.holes <= max)

Marwan Abbas

02/15/2022, 7:59 AM

klayout -zz -r sky130A_mr.drc -rd feol=1 -rd beol=1 -rd offgrid=0 -rd seal=1 -rd floating_met=0 -rd input=<file>.gds

Mingjie Liu

02/24/2022, 4:19 PM

/home/unga/jayliu/projects/test/skywaterPDKAdapt/sky130A_mr.drc

Mingjie Liu

02/24/2022, 4:23 PM

https://github.com/RTimothyEdwards/open_pdks.git

Mingjie Liu

02/24/2022, 4:39 PM

cap.gds