Fix sign related issues.
authorbatt <batt@38d2e660-2303-0410-9eaa-f027e97ec537>
Mon, 7 Jun 2010 17:44:45 +0000 (17:44 +0000)
committerbatt <batt@38d2e660-2303-0410-9eaa-f027e97ec537>
Mon, 7 Jun 2010 17:44:45 +0000 (17:44 +0000)
commit52d65db7c052108ba5d004dc4687f938d6f3dc90
treed9566f2d9d66288bbc50a7c2d1c336b2a4dc3f78
parent3b747287f13850aabb9f92e66a21017dcc156b19
Fix sign related issues.

Altitude and decimal degrees positions can be negative!
Without this patch, dangerous overflows can happen.
Also fix some minor documentation issues.

git-svn-id: https://src.develer.com/svnoss/bertos/trunk@3896 38d2e660-2303-0410-9eaa-f027e97ec537
bertos/net/nmea.c
bertos/net/nmea.h