From 67ae7273655210a55b3a3fe8e72f27bd32911302 Mon Sep 17 00:00:00 2001
From: px4dev <px4@purgatory.org>
Date: Sat, 11 Aug 2012 19:42:24 -0700
Subject: Bootloader requires images be a multiple of 4 bytes; pad to comply.

---
 Tools/px_uploader.py | 4 ++++
 1 file changed, 4 insertions(+)

(limited to 'Tools/px_uploader.py')

diff --git a/Tools/px_uploader.py b/Tools/px_uploader.py
index 89ceda3d2..bc5d7b36b 100755
--- a/Tools/px_uploader.py
+++ b/Tools/px_uploader.py
@@ -77,6 +77,10 @@ class firmware(object):
 
 		self.image = zlib.decompress(base64.b64decode(self.desc['image']))
 
+		# pad image to 4-byte length
+		while ((len(self.image) % 4) != 0):
+			self.image += b'\x00'
+
 	def property(self, propname):
 		return self.desc[propname]
 
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