From f356f64bdb85c62c35f9dfea62ca9b7954fc5db6 Mon Sep 17 00:00:00 2001
From: David Forrest <drf@vims.edu>
Date: Sun, 18 May 2014 10:47:20 -0400
Subject: [PATCH] config.default.h: Add DEBUG_LED_PIN to the pinout section.

---
 config.default.h | 12 +++++++++++-
 1 file changed, 11 insertions(+), 1 deletion(-)

diff --git a/config.default.h b/config.default.h
index 014c38e..c6185ca 100644
--- a/config.default.h
+++ b/config.default.h
@@ -292,7 +292,17 @@
 //#define	STEPPER_ENABLE_PIN		xxxx
 //#define	STEPPER_INVERT_ENABLE
 
-//#define DEBUG_LED_PIN         DIO0
+/** \def DEBUG_LED_PIN
+
+  Enable flashing of a LED during motor stepping.
+
+  Disabled by default. Uncommenting this makes the binary a few bytes larger
+  and adds a few cycles to the step timing interrrupt in timer.c. Also used
+  for precision profiling (profiling works even without actually having such
+  a LED in hardware), see
+  http://reprap.org/wiki/Teacup_Firmware#Doing_precision_profiling
+*/
+// #define DEBUG_LED_PIN DIO13