NMEA error correction? <- XOR

Archiver

The last two bytes (after the '*') are the checksum, which is obtained by an
XOR operation. You can download an explanation and sample code from Garmin's
web site, in the FAQ area.

www.garmin.com

All the best,

Mike



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Mensaje original

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> De: orthner@s... [noparse]/noparse]mailto:[url=http://forums.parallaxinc.com/group/basicstamps/post?postID=FIOORDC3pKv-NOtX34eCfSE64n2-MRo13bfHwFpzVTDlw-M-HTTNyVYR-od1tg2sDOiFI99dlWWtomFcI2Q]orthner@s...[/url
> Enviado el: sabado, 13 de enero de 2001 5:28
> Para: basicstamps@egroups.com
> Asunto: [noparse][[/noparse]basicstamps] NMEA error correction?
>
>
>
> Hello everyone,
>
> I know this isn't strictly stamp related (although it will be hooked
> up to a stamp) but does anyone know if native NMEA contains *any* error
> correction at all? I can't seem to find a clear answer on this. . . It
> doesn't seem sensible to me that the strings are supposed to go
> out (to any
> number of myriad devices) with out any form of error correction. Are there
> checksums on the individual strings, or something?
>
> Duncan
>
>
>
>