From bd9488f1e4f4d34d3d6aadd07cb0736ea39ae2fe Mon Sep 17 00:00:00 2001
From: Andrew Tridgell <tridge@samba.org>
Date: Wed, 28 Dec 2011 15:50:20 +1100
Subject: [PATCH] DataFlash: fixed sense of card detect

---
 libraries/DataFlash/DataFlash_APM2.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/libraries/DataFlash/DataFlash_APM2.cpp b/libraries/DataFlash/DataFlash_APM2.cpp
index 45dfa510ac..8fd8b5eb38 100644
--- a/libraries/DataFlash/DataFlash_APM2.cpp
+++ b/libraries/DataFlash/DataFlash_APM2.cpp
@@ -153,7 +153,7 @@ void DataFlash_APM2::ReadManufacturerID()
 // This function return 1 if Card is inserted on SD slot
 bool DataFlash_APM2::CardInserted()
 {
-    return (digitalRead(DF_CARDDETECT) != 0);
+    return (digitalRead(DF_CARDDETECT) == 0);
 }
 
 // Read the status register