diff --git a/MCU_Wrapper/mcu_wrapper_conf.h b/MCU_Wrapper/mcu_wrapper_conf.h
index 35e49c0..266c1bd 100644
--- a/MCU_Wrapper/mcu_wrapper_conf.h
+++ b/MCU_Wrapper/mcu_wrapper_conf.h
@@ -50,7 +50,7 @@
 
 
 #define PORT_WIDTH                      16          ///< width of one port
-#define PORT_NUMB                       3           ///< amount of ports
+#define PORT_NUMB                       4           ///< amount of ports
 // Parameters of S_Function
 #define NPARAMS                 1                           ///< number of input parametrs (only Ts)
 #define IN_PORT_WIDTH           (10)                         ///< width of input ports
diff --git a/mexing.m b/mexing.m
index f06de8e..525e2f7 100644
--- a/mexing.m
+++ b/mexing.m
@@ -4,7 +4,7 @@ clear, clc,
 set = mex.getCompilerConfigurations('C', 'Selected');
 
 Ts = 0.00001;
-Unom = 460;
+Unom = 220;
 Udc = Unom*sqrt(2);
 freq = 20000;
 Rload = 2;