diff --git a/src/main/scala/shell/xilinx/ML507Shell.scala b/src/main/scala/shell/xilinx/ML507Shell.scala
index ca1e3e6..ecb2116 100644
--- a/src/main/scala/shell/xilinx/ML507Shell.scala
+++ b/src/main/scala/shell/xilinx/ML507Shell.scala
@@ -60,7 +60,10 @@ abstract class ML507Shell(implicit val p: Parameters) extends RawModule {
   val reset                = IO(Input(Bool()))
 
   // LED
-  val led                  = IO(Vec(8, Output(Bool())))
+  val led                  = IO(Output(Vec(8, Bool())))
+
+  // DIP switches
+  val dip                  = IO(Input(Vec(8, Bool())))
 
   // UART
   val uart_tx              = IO(Output(Bool()))
@@ -71,22 +74,6 @@ abstract class ML507Shell(implicit val p: Parameters) extends RawModule {
   val sdio_cmd             = IO(Analog(1.W))
   val sdio_dat             = IO(Analog(4.W))
 
-  //Buttons
-  val btn_0                = IO(Input(Bool()))
-  val btn_1                = IO(Input(Bool()))
-  val btn_2                = IO(Input(Bool()))
-  val btn_3                = IO(Input(Bool()))
-
-  //Sliding switches
-  val sw_0                 = IO(Input(Bool()))
-  val sw_1                 = IO(Input(Bool()))
-  val sw_2                 = IO(Input(Bool()))
-  val sw_3                 = IO(Input(Bool()))
-  val sw_4                 = IO(Input(Bool()))
-  val sw_5                 = IO(Input(Bool()))
-  val sw_6                 = IO(Input(Bool()))
-  val sw_7                 = IO(Input(Bool()))
-
   // Feedback
   val clock_led            = IO(Output(Clock()))
   val reset_led            = IO(Output(Bool()))