Added GP_VREF cell

diff --git a/techlibs/greenpak4/cells_sim.v b/techlibs/greenpak4/cells_sim.v
index 554e2e13f2b6a9a6988ce99618348076fbbb2e72..40d79aeae36f0b40c93c8f0a7e6c55cf09af9b7d 100644 (file)
--- a/techlibs/greenpak4/cells_sim.v
+++ b/techlibs/greenpak4/cells_sim.v
@@ -263,6 +263,12 @@ module GP_VDD(output OUT);
        assign OUT = 1;
 endmodule
 
+module GP_VREF(input VIN, output reg VOUT);
+       parameter VIN_DIV = 1;
+       parameter VREF = 0;
+       //cannot simulate mixed signal IP
+endmodule
+
 module GP_VSS(output OUT);
        assign OUT = 0;
 endmodule