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| author | Eric S. Raymond <esr@thyrsus.com> | 2015-07-19 15:27:25 -0400 |
|---|---|---|
| committer | Eric S. Raymond <esr@thyrsus.com> | 2015-07-19 15:27:25 -0400 |
| commit | 478a7cc4ff40a6479af679f5e083c32ecc8f9992 (patch) | |
| tree | b624169ab2da81affafaa4c6dbc8ededba6f37fc /www | |
| parent | 65ae16608952d57404477073a568b411ed269a01 (diff) | |
| download | gpsd-478a7cc4ff40a6479af679f5e083c32ecc8f9992.tar.gz | |
Checksum is not a CRC.
Diffstat (limited to 'www')
| -rw-r--r-- | www/NMEA.txt | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/www/NMEA.txt b/www/NMEA.txt index 2772bf35..2783033c 100644 --- a/www/NMEA.txt +++ b/www/NMEA.txt @@ -139,7 +139,7 @@ actually ship this sentence. An NMEA sentence consists of a start delimiter, followed by a comma-separated sequence of fields, followed by the character '\*' -(ASCII 42), followed by a CRC32 checksum expressed as two hexadecimal +(ASCII 42), followed by a bitwise-xor checksum expressed as two hexadecimal digits, followed by an end-of-line marker. The start delimiter is normally '$' (ASCII 36). Packets of AIVDM/AIVDO @@ -1074,7 +1074,7 @@ Field Number: 10. Goeidal separation meters 11. Age of diferential data 12. Differential reference station ID -13. CRC +13. Checksum === GRS - GPS Range Residuals === |