[time-nuts] NMEA Checksums

Matthew Smith matt at smiffytech.com
Wed May 28 02:18:27 EDT 2008

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.


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

More information about the time-nuts mailing list