diff --git a/hal_api_uart.slx b/hal_api_uart.slx
index c3dcefb..fb8a312 100644
Binary files a/hal_api_uart.slx and b/hal_api_uart.slx differ
diff --git a/hal_uart_param_update_lst.m b/hal_uart_param_update_lst.m
index 1706e01..4623408 100644
--- a/hal_uart_param_update_lst.m
+++ b/hal_uart_param_update_lst.m
@@ -1,5 +1,9 @@
 function hal_uart_param_update_lst
-lst = {'0:BaudRate','1:WordLen','2:StopBits','3:Parity'};
+lst = {'0:BaudRate','1:WordLen','2:StopBits','3:Parity','4:RxBuff',...
+    '5:TxBuff','6:Options'};
+
+load_system('hal_api_uart');
+set_param('hal_api_uart','Lock','off');
 
 b = Simulink.Mask.get('hal_api_uart/hal_uart_get_param');
 p = b.Parameters(4);
@@ -9,5 +13,7 @@ b = Simulink.Mask.get('hal_api_uart/hal_uart_set_param');
 p = b.Parameters(4);
 p.set('TypeOptions',lst);
 
+set_param('hal_api_uart','Lock','on');
+close_system('hal_api_uart',1);
 end