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[gpsd-users] gpsd exits on nmea-sentence with bad syntax

From: Victor Klein
Subject: [gpsd-users] gpsd exits on nmea-sentence with bad syntax
Date: Tue, 11 Jun 2013 17:52:55 +0200
User-agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:17.0) Gecko/20130509 Thunderbird/17.0.6


I found that gpsd exits without notice if if gets a sentence with a not wellformed syntax.

example: $IIVHW,,T,052,M,000.0,N,000.0,$*62, the $ sign is the problem, the correct sentence is

if there is another fault in the sentence , the gpsd produces rubish like:

$IIVHW,,T,053,MH000.0,N,000.0,K*63 --> 2449495648572c2c542c3035332c4d483030302e302c4e2c3030302e302c4b2a36330d0a $IIVHW,,T,054,M,000.0,N,00010,K*64 --> 2449495648572c2c542c3035342c4d2c3030302e302c4e2c30303031302c4b2a36340d0a $IIVHW,,T,054,M,000.0,N,000.00K*64 --> 2449495648572c2c542c3035342c4d2c3030302e302c4e2c3030302e30304b2a36340d0a
$IIMTW,020.4IC*25   -->   2449494d54572c3032302e3449432a32350d0a

I'm using gpsd on a TP-Link MR3020 with openwrt. The supported version is 3.7. I read the data from a Seatalk-to-NMEA-USB-Converter, which produces randomly some bad sentences.

Help appreciated.


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