[time-nuts] NMEA Checksums

Chris Kuethe chris.kuethe at gmail.com
Wed May 28 02:24:35 EDT 2008


Commas matter. The checksum runs over every character between the
leading '$' and the '*' delimiter.

On Tue, May 27, 2008 at 11:18 PM, Matthew Smith <matt at smiffytech.com> wrote:
>
> Re-sending, now that febo.com appears to have risen from the dead.
> Please accept my apologies if this should arrive in duplicate.
>
>  >>>>>>>
>
>
>
> Hi Folks
>
> When calculating the checksum for an NMEA message, are the commas taken
> into account or ignored?
>
> Just trying to work out whether I can get away with a minor modification
> to the Oncore checksum (but ignoring the $ and the *) or whether I need
> to sort out the relevant bits into a new buffer first.
>
> Cheers
>
> M
> --
> Matthew Smith
> Smiffytech - Technology Consulting & Web Application Development
> Business: http://www.smiffytech.com/
> Personal: http://www.smiffysplace.com/
> LinkedIn: http://www.linkedin.com/in/smiffy
>
>
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-- 
GDB has a 'break' feature; why doesn't it have 'fix' too?



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