1 files changed, 2 insertions, 1 deletions
diff --git a/gowin/arch.h b/gowin/arch.h
index bc29a59b..c5804bc4 100644
--- a/gowin/arch.h
+++ b/gowin/arch.h
@@ -484,7 +484,8 @@ enum
     mux_0_z = 10,     // start Z for the MUX2LUT5 bels
     iologic_0_z = 20, // start Z for the IOLOGIC bels
     vcc_0_z = 277,    // virtual VCC bel Z
-    gnd_0_z = 278     // virtual VSS bel Z
+    gnd_0_z = 278,    // virtual VSS bel Z
+    osc_z = 280       // Z for the oscillator bels
 };
 }