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Fix reversed sense of Track Angle / Heading bit in surface opstatus messages.

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This commit is contained in:
Oliver Jowett 2019-06-06 14:14:46 +08:00
parent a0bd957274
commit e444d2eb5c
1 changed files with 8 additions and 2 deletions
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10
mode_s.c
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@ -1280,7 +1280,10 @@ static void decodeESOperationalStatus(struct modesMessage *mm, int check_imf)
mm->accuracy.nic_baro_valid = 1; mm->accuracy.nic_baro_valid = 1;
mm->accuracy.nic_baro = getbit(me, 53); mm->accuracy.nic_baro = getbit(me, 53);
} else { } else {
mm->opstatus.tah = getbit(me, 53) ? HEADING_GROUND_TRACK : mm->opstatus.hrd; // see DO=260B §2.2.3.2.7.2.12
// TAH=0 : surface movement reports ground track
// TAH=1 : surface movement reports aircraft heading
mm->opstatus.tah = getbit(me, 53) ? mm->opstatus.hrd : HEADING_GROUND_TRACK;
} }
break; break;
@ -1330,7 +1333,10 @@ static void decodeESOperationalStatus(struct modesMessage *mm, int check_imf)
mm->accuracy.nic_baro_valid = 1; mm->accuracy.nic_baro_valid = 1;
mm->accuracy.nic_baro = getbit(me, 53); mm->accuracy.nic_baro = getbit(me, 53);
} else { } else {
mm->opstatus.tah = getbit(me, 53) ? HEADING_GROUND_TRACK : mm->opstatus.hrd; // see DO=260B §2.2.3.2.7.2.12
// TAH=0 : surface movement reports ground track
// TAH=1 : surface movement reports aircraft heading
mm->opstatus.tah = getbit(me, 53) ? mm->opstatus.hrd : HEADING_GROUND_TRACK;
} }
break; break;
} }