diff --git a/cores/arduino/validation/build_as6/test.atsuo b/cores/arduino/validation/build_as6/test.atsuo
index 835a53bc1ac99b753074ca00bb1d6dc892d7deb6..26b524b33b54fad372b5784431c9893881c36c82 100644
Binary files a/cores/arduino/validation/build_as6/test.atsuo and b/cores/arduino/validation/build_as6/test.atsuo differ
diff --git a/cores/arduino/validation/test.cpp b/cores/arduino/validation/test.cpp
index 68968f1e9623a3a1e8edc6d63728300568931c68..3c7e0b2e6a4eff37beef1ac11bd8ab7f08cd3b8c 100644
--- a/cores/arduino/validation/test.cpp
+++ b/cores/arduino/validation/test.cpp
@@ -22,13 +22,26 @@ void setup( void )
 {
   // Initialize the digital pin as an output.
   // Pin PIN_LED has a LED connected on most Arduino boards:
-  pinMode( PIN_LED, OUTPUT ) ;
-  digitalWrite( PIN_LED, LOW ) ;
+  //pinMode( PIN_LED, OUTPUT ) ;
+  //digitalWrite( PIN_LED, LOW ) ;
 
   // Initialize the PIN_LED2 digital pin as an output.
   pinMode( PIN_LED2, OUTPUT ) ;
   digitalWrite( PIN_LED2, HIGH ) ;
 
+  // Initialize the PIN_LED2 digital pin as an output.
+  pinMode( PIN_LED3, OUTPUT ) ;
+  digitalWrite( PIN_LED3, LOW ) ;
+
+//**********************************************
+// Clock output on pin 4 for measure
+
+  pinPeripheral( 4, PIO_AC_CLK ) ; // Clock Gen 0
+  pinPeripheral( 5, PIO_AC_CLK ) ; // Clock Gen 1
+  pinPeripheral( 13, PIO_AC_CLK ) ; // Clock Gen 3
+
+//**********************************************
+
 /*
   Serial1.begin( 115200 ) ;
 */
@@ -36,14 +49,16 @@ void setup( void )
 
 static void led_step1( void )
 {
-  digitalWrite( PIN_LED, LOW ) ;  // set the LED on
+//  digitalWrite( PIN_LED, LOW ) ;  // set the LED on
   digitalWrite( PIN_LED2, LOW ) ;   // set the red LED off
+  digitalWrite( PIN_LED3, HIGH ) ;   // set the red LED off
 }
 
 static void led_step2( void )
 {
-  digitalWrite( PIN_LED, HIGH ) ;   // set the LED off
+//  digitalWrite( PIN_LED, HIGH ) ;   // set the LED off
   digitalWrite( PIN_LED2, HIGH ) ;  // set the red LED on
+  digitalWrite( PIN_LED3, LOW ) ;  // set the red LED on
 }
 
 void loop( void )