Merge pull request #150 from azonenberg/master

GreenPak analog comparator support

techlibs/greenpak4/cells_sim.v

@@ -13,6 +13,19 @@ module GP_4LUT(input IN0, IN1, IN2, IN3, output OUT);
 	assign OUT = INIT[{IN3, IN2, IN1, IN0}];
 endmodule
 
+module GP_ACMP(input wire PWREN, input wire VIN, input wire VREF, output reg OUT);
+
+	parameter BANDWIDTH = "HIGH";
+	parameter VIN_ATTEN = 1;
+	parameter VIN_ISRC_EN = 0;
+	parameter HYSTERESIS = 0;
+	
+	initial OUT = 0;
+	
+	//cannot simulate mixed signal IP
+
+endmodule
+
 module GP_BANDGAP(output reg OK, output reg VOUT);
 	parameter AUTO_PWRDN = 1;
 	parameter CHOPPER_EN = 1;