Prepare for GitHub.

README.md

@@ -1,2 +1,14 @@
-http://www.gpspassion.com/forumsen/topic.asp?TOPIC_ID=115804&whichpage=1
+GCD Parser
-http://www.gpspassion.com/forumsen/topic.asp?TOPIC_ID=137838&whichpage=50
+==========
+
+This is a parser for GCD files (firmware updates from a well-known manufacturer).
+
+It's in Python, so feel free to add cool new features and submit pull requests.
+
+Thanks to TurboCCC and kunix for your work.
+
+Most info from:
+
+* http://www.gpspassion.com/forumsen/topic.asp?TOPIC_ID=115804&whichpage=1
+* http://www.gpspassion.com/forumsen/topic.asp?TOPIC_ID=137838&whichpage=50
+* hours of looking at hex numbers

gcd.py

@@ -169,7 +169,7 @@ with open(FILE, "rb") as f:
             #print(hexlify(payload).decode("utf-8"))
             #print("  > " + repr(payloadshort))
         add_to_cksum(payload)
-        if ttype in [0x0505]:
+        if ttype in [0x0505, 0x02bd]:
             with open("fw_{:04x}.bin".format(ttype), "ab") as of:
                 of.write(payload)
         i = i + 1