1 files changed, 31 insertions, 0 deletions
diff --git a/techlibs/greenpak4/cells_sim.v b/techlibs/greenpak4/cells_sim.v
index 4ea576960..f013d9b71 100644
--- a/techlibs/greenpak4/cells_sim.v
+++ b/techlibs/greenpak4/cells_sim.v
@@ -144,3 +144,34 @@ module GP_SYSRESET(input RST);
 	//cannot simulate whole system reset
 	
 endmodule
+
+module GP_BANDGAP(output reg OK, output reg VOUT);
+	parameter AUTO_PWRDN = 1;
+	parameter CHOPPER_EN = 1;
+	parameter OUT_DELAY = 100;
+	
+	//cannot simulate mixed signal IP
+	
+endmodule
+
+
+module GP_POR(output reg RST_DONE);
+	parameter POR_TIME = 500;
+	
+	initial begin
+		RST_DONE = 0;
+		
+		if(POR_TIME == 4)
+			#4000;
+		else if(POR_TIME == 500)
+			#500000;
+		else begin
+			$display("ERROR: bad POR_TIME for GP_POR cell");
+			$finish;
+		end
+		
+		RST_DONE = 1;
+		
+	end
+	
+endmodule