Swordfish Module: NMEA2.bas

[Graham]

After running into several issues with the NMEA module by David Barker, I've started work on my own module. I'd love to expand on Davids original code, though I am unfamiliar with his approach (use of ring buffers etc).

It's no where near as fancy, but is effective. It's interrupt driven and will perform the appropriate validation for each NMEA sentence. edit: I've completed a publically stable release and made an article in the Swordfish User Module section.

[Graham]

Made a quick change.. CRC calculation is done at the end of parsing. Should validation fail, then the parser resets (validation was done manually in the first version).

Because I made the change within 5 minutes of posting the code, I am keeping it at version 1.0

[Graham]

Now its time to make full use of this module in the Big GPS Clock project..