hi andrea,
just adding the hooks for the gps module won't break the app, but before
you call its init, you must disable the sd stuff, and vice-versa.
-steve
On 05/16/2011 06:06 AM, Andrea Grante wrote:
Hello Steve,
thank you for your help.
I already tried to call the init() on the GPS, then getting the data,
disabling it by calling either disable() or disableBus(), without success.
Anyway, if you just add in JustFATLoggingC
{
...
components GpsC as GpsMod;
JustFATLoggingP.GpsInit -> GpsMod.Init;
JustFATLoggingP.Gps -> GpsMod.Gps;
...
}
and in JustFATLoggingP
{
...
interface Gps;
interface Init as GpsInit;
...
async event void Gps.NMEADataAvailable(char * data) {}
...
}
the app stops working. It's enough to add those lines, without
enabling/initializing the GPS module.
When the shimmer2r is undocked, the three leds turn on, and when docked
back, the control of the mote is lost and nothing is written on the SD card.
Is there something wrong in my code?
Thank you again, regards,
Andrea.
2011/5/12 steve ayer <[email protected] <mailto:[email protected]>>
hi andrea,
the sd card and the gps daughter card use the same usart bus on the
shimmer, so to use the two together, you'll have to cache gps data
while the sd card is disabled, then stop receiving data from the gps
(though i would not disable it), bring up the sd card, write your
data, then switch back. bus multiplexing...
i hope that this helps,
steve
On 05/12/2011 09:15 AM, Andrea Grante wrote:
Hello,
I'm a master student and I'm trying to write an application
which stores
data from the GPS expansion on the SD card.
Although I use applications which store data on the SD card
succesfully
(like JustFATLogging, for instance), I'm having problems using
the GPS
module in the same apps.
Even if I just list the GPS component in the configuration file (not
even calling its init() ), SD card storage stops working.
How could I make the GPS and SD modules work together?
Thank you so much for your help, regards,
Andrea Grante.
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