If I have some analog signals at the top level that I'm routing to a pad, how can I tell openlane to...

Matthew Guthaus

09/06/2022, 11:58 PM

If I have some analog signals at the top level that I'm routing to a pad, how can I tell openlane to NOT add buffers to the wires?

Mitch Bailey

09/07/2022, 12:51 AM

Maybe this helps? https://open-source-silicon.slack.com/archives/C016H8WJMBR/p1662463841735099?thread_ts=1662462922.036929&cid=C016H8WJMBR

👍 1

Ryan R

09/07/2022, 5:45 AM

@Mitch Bailey which file of openroad should we add it ??

Ryan R

09/07/2022, 5:48 AM

I have added inside the run_placement proc , but not seems to be recognized : [STEP 7] [INFO]: Generating PDN... invalid command name "set_dont_touch" while executing "set_dont_touch V1_WL" (procedure "run_placement" line 5) invoked from within "run_placement" (procedure "run_placement_step" line 8) invoked from within "[lindex $step_exe 0] [lindex $step_exe 1] " (procedure "run_non_interactive_mode" line 55) invoked from within "run_non_interactive_mode {*}$argv" invoked from within "if { [info exists flags_map(-interactive)] || [info exists flags_map(-it)] } { if { [info exists arg_values(-file)] } { run_file [file normalize $a..." (file "./flow.tcl" line 434)

Vijayan Krishnan

09/07/2022, 6:07 AM

Try with latest OpenLane commit and try interactive mode

Ryan R

09/07/2022, 6:48 AM

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