From 5b97a79b6d74fa99fe32246f20ce5f275e1279c4 Mon Sep 17 00:00:00 2001
From: ashelly <adam@keyme.net>
Date: Wed, 17 Sep 2014 23:41:52 -0400
Subject: [PATCH] No false alarm if other bits in port are set.

---
 motion_control.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/motion_control.c b/motion_control.c
index 3b0b171..2208a93 100644
--- a/motion_control.c
+++ b/motion_control.c
@@ -242,7 +242,7 @@ void mc_homing_cycle()
 {
   uint8_t limits_on;
   if (bit_istrue(settings.flags,BITFLAG_INVERT_LIMIT_PINS)) {
-    limits_on = (LIMIT_PIN ^ LIMIT_MASK);
+    limits_on = ((~LIMIT_PIN) & LIMIT_MASK);
   } else {
     limits_on =  (LIMIT_PIN & LIMIT_MASK);
   }