1 files changed, 9 insertions, 14 deletions
diff --git a/examples/debug-dtrrts.cpp b/examples/debug-dtrrts.cpp
index f9f8b96..61c061a 100644
--- a/examples/debug-dtrrts.cpp
+++ b/examples/debug-dtrrts.cpp
@@ -1,14 +1,12 @@
-// Sample main.cpp file. Blinks an LED, sends a message out USART2
-// and turns on PWM on pin 2
+// Test sketch for figuring out DTR/RTS behavior on different platforms.
 
 #include "wirish.h"
 #include "usb.h"
 
-#define LED_PIN 13
-#define PWM_PIN  2
+#define LED_PIN BOARD_LED_PIN
+#define PWM_PIN 2
 
-void setup()
-{
+void setup() {
     /* Set up the LED to blink  */
     pinMode(LED_PIN, OUTPUT);
 
@@ -18,12 +16,10 @@ void setup()
 
 }
 
-int toggle = 0;
-
 void loop() {
-    toggle ^= 1;
-    digitalWrite(LED_PIN, toggle);
+    toggleLED();
     delay(100);
+
     Serial2.print("DTR: ");
     Serial2.print(usbGetDTR(), DEC);
     Serial2.print("\tRTS: ");
@@ -31,13 +27,12 @@ void loop() {
 }
 
 // Force init to be called *first*, i.e. before static object allocation.
-// Otherwise, statically allocated object that need libmaple may fail.
- __attribute__(( constructor )) void premain() {
+// Otherwise, statically allocated objects that need libmaple may fail.
+__attribute__((constructor)) void premain() {
     init();
 }
 
-int main(void)
-{
+int main(void) {
     setup();
 
     while (1) {