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-rw-r--r--techlibs/gowin/synth_gowin.cc2
1 files changed, 1 insertions, 1 deletions
diff --git a/techlibs/gowin/synth_gowin.cc b/techlibs/gowin/synth_gowin.cc
index 4d32f62d4..3581d050e 100644
--- a/techlibs/gowin/synth_gowin.cc
+++ b/techlibs/gowin/synth_gowin.cc
@@ -212,7 +212,7 @@ struct SynthGowinPass : public ScriptPass
{
run("techmap -map +/gowin/cells_map.v");
run("setundef -undriven -zero");
- run("hilomap -hicell VCC V -locell GND G");
+ run("hilomap -singleton -hicell VCC V -locell GND G");
run("iopadmap -bits -inpad IBUF O:I -outpad OBUF I:O", "(unless -noiopads)");
run("dffinit -ff DFF Q INIT");
run("clean");