Fwd: Cell_log > gsmmap

Sébastien Lorquet squalyl at gmail.com
Mon Jan 31 16:08:39 UTC 2011


I don't see a huge problem here.

Why not just parse whatever message with interesting info we get?

if (!strcmp("$GPGLL") {
   // extract coordinates and update buffer
} else if(!strcmp("$GPGGA)) {
   // extract coordinates and update buffer
} else if(!strcmp("$GPRMC)) {
   // extract coordinates and update buffer
} else if(!strcmp("$GPSuperProprietaryMessageWithAwesomePrecisionData")) {
   // extract coordinates and update buffer
} else {
   // no luck with this message
   return;
}

Sebastien

On Mon, Jan 31, 2011 at 4:28 PM,  <mad at auth.se> wrote:
> On Mon, 31 Jan 2011 13:34:16 +0100, Dario Lombardo wrote:
>>
>> Good, but why did you change the old code? Why don't you put something
>> like
>>
>> if (strcmp("$GPGLL") {
>>    // run the old code
>> } else if(strcmp("$GPGGA)) {
>>    // run your new code
>> } else {
>>    return;
>> }
>>
>> That could support both the devices.
>
> BTW, best practice would be to implement parsing of the "GPRMC"-sentence as
> it
> is the "Recommended Minimal Sentence" for every NMEA-capable gps receiver.
> It contains time, date, latitude, longitude, validity, speed and heading, so
> everything needed is delivered and should work with all receivers out there.
>
> Regards,
>  Mad
>
>
>




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