Added hooks to the Tcl code in magic for schematic-to-layout
conversion, adding an "Import SPICE" menu item to the magic setup
when the PDK is installed. Only lightly tested, and needs some
additional development.
diff --git a/sky130/magic/sky130.tcl b/sky130/magic/sky130.tcl
index a653c4b..3833c01 100644
--- a/sky130/magic/sky130.tcl
+++ b/sky130/magic/sky130.tcl
@@ -29,24 +29,7 @@
# Set options specific to this PDK
set Opts(hidelocked) 1
-set Opts(hidespecial) 1
-
-# Create new "tool" proc that doesn't have the netlist tool.
-proc magic::nexttool {} {
- global Opts
-
- # Don't attempt to switch tools while a selection drag is active
- if {$Opts(motion) == {}} {
- switch $Opts(tool) {
- box { magic::tool wiring }
- wiring { magic::tool pick }
- default { magic::tool box }
- }
- }
-}
-
-# This shoule be part of sitedef. . .
-macro space magic::nexttool
+set Opts(hidespecial) 0
# Wrap the closewrapper procedure so that closing the last
# window is equivalent to quitting.
@@ -215,8 +198,13 @@
magic::add_toolkit_command $layoutframe "vpp 4.4x4.6 m1-m2 l1 shield" \
"magic::gencell sky130::sky130_fd_pr__cap_vpp_04p4x04p6_m1m2_l1shield" pdk2
+ # Additional DRC style for routing only---add this to the DRC menu
${layoutframe}.titlebar.mbuttons.drc.toolmenu add command -label "DRC Routing" -command {drc style drc(routing)}
+ # Add SPICE import function to File menu
+ ${layoutframe}.titlebar.mbuttons.file.toolmenu insert 4 command -label "Import SPICE" -command {sky130::importspice}
+ ${layoutframe}.titlebar.mbuttons.file.toolmenu insert 4 separator
+
# Add command entry window by default if enabled
if {[info exists Opts(cmdentry)]} {
set Winopts(${framename},cmdentry) $Opts(cmdentry)
@@ -229,6 +217,22 @@
}
#----------------------------------------------------------------
+# Menu callback function to read a SPICE netlist and generate an
+# initial layout using the SKYWATER TECHNAME gencells.
+#----------------------------------------------------------------
+
+proc sky130::importspice {} {
+ global CAD_ROOT
+
+ set Layoutfilename [ tk_getOpenFile -filetypes \
+ {{SPICE {.spice .spc .spi .ckt .cir .sp \
+ {.spice .spc .spi .ckt .cir .sp}}} {"All files" {*}}}]
+ if {$Layoutfilename != ""} {
+ magic::netlist_to_layout $Layoutfilename sky130
+ }
+}
+
+#----------------------------------------------------------------
proc sky130::mcon_draw {{dir default}} {
set w [magic::i2u [box width]]
