Add status indication led for the reset button

src/main/scala/shell/xilinx/ML507Shell.scala

@@ -98,6 +98,7 @@ abstract class ML507Shell(implicit val p: Parameters) extends RawModule {
 
   // active high reset
   val reset                = IO(Input(Bool()))
+  val reset_led            = IO(Output(Bool()))
 
   // LED
   val led                  = IO(Vec(8, Output(Bool())))
@@ -105,8 +106,6 @@ abstract class ML507Shell(implicit val p: Parameters) extends RawModule {
   // UART
   val uart_tx              = IO(Output(Bool()))
   val uart_rx              = IO(Input(Bool()))
-  val uart_rtsn            = IO(Output(Bool()))
-  val uart_ctsn            = IO(Input(Bool()))
 
   // SDIO
   val sdio_clk             = IO(Output(Bool()))
@@ -176,6 +175,9 @@ abstract class ML507Shell(implicit val p: Parameters) extends RawModule {
   // Allow the debug module to reset everything. Resets the MIG
   sys_reset := reset | dut_ndreset
 
+  // Status LED for reset
+  reset_led := reset
+
   //-----------------------------------------------------------------------
   // Clock Generator
   //-----------------------------------------------------------------------
@@ -225,8 +227,6 @@ abstract class ML507Shell(implicit val p: Parameters) extends RawModule {
   // UART
   //-----------------------------------------------------------------------
 
-  uart_rtsn := false.B
-
   def connectUART(dut: HasPeripheryUARTModuleImp): Unit = {
     val uartParams = p(PeripheryUARTKey)
     if (!uartParams.isEmpty) {