@User Is there a way to use Magic DRC engine as a separate program? I need to give something like the following file as input get the DRC results in real-time: box 0.0um 0.0um 0.5um 0.5um paint nwell By reading this file I should get nwell width DRC error instantly, I guess.

Yes, you can always call magic in batch mode with something like the following:

#!/bin/bash
magic -dnull -noconsole /path/to/sky130A.magicrc << EOF
box 0.0um 0.0um 0.5um 0.5um
paint nwell
drc catchup
puts stdout [drc listall why]
EOF

or you can run the helpful script

${PDK_PATH}/libs.tech/magic/run_standard_drc.py

which will do the above, but more thoroughly and with better output.

@User Thanks a lot for the reply. One other question is there any documentation about the DRCs or I have no other ways except checking the Magic tech file?

@User: You get information about DRC errors in magic with the command

drc why

, or you can move from one error to the next with

drc find

, or you can get a complete dump of DRC errors with the script

run_standard_drc.py

, which is installed by open_pdks along with other magic files in

sky130A/libs.tech/magic/

.

@User Hi Tim, Thanks a lot for your time and patience. Actually what I’m looking for is some raw info of the DRCs. I mean how do you get proper informations to create the tech files in

sky130A/libs.tech/magic/

? I found some tables this link but I don’t know whether I’m looking in correct info or I should search somewhere else?

Yes, that's the correct location for the DRC rule documentation.