Re: [Gumstix-users] How to obtain a GPS data

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Okay well thats good news as it shows that your GPS module is working!
Basically at present you don't have a GPS lock hence why there aren't
that many characters. To get a lock you need to have the right GPS
antenna connected and its probably worth moving the antenna close to a
window or even better outside. Getting a lock might take a bit of time
so best to leave the gumstix running and leave the cat command
running.

You can use GPSD if you want however it is possible to extract data in
other ways. Once you get a gps lock you'll actually be able to see the
data when using the cat command. I personally use a perl script that
process the incoming sentences and spit out the information i want :
http://www.pegasushabproject.org.uk/pegasus3/software/gpsparser3 . To
use that you'll need to bitbake perl.

Hope that helps

James

2009/8/3 cruizbugs <cru...@ya...>:
>
>
> Yeah, I tried to use cat /dev/ttyS2
> and this is what i got:
> root@gumstix-custom-verdex:~$ stty -F /dev/ttyS2 && cat < /dev/ttyS2
> speed 9600 baud;
> -brkint -imaxbel
> $GPRMC,,V,,,,,,,,,,N*53
>
> $GPVTG,,,,,,,,,N*30
>
> $GPGGA,,,,,,0,00,99.99,,,,,,*48
>
> $GPGSA,A,1,,,,,,,,,,,,,99.99,99.99,99.99*30
>
> $GPGSV,1,1,00*79
>
> $GPGLL,,,,,,V,N*64
>
> $GPZDA,,,,,00,00*48
>
> $GPTXT,01,01,01,NMEA unknown msg*58
>
> $GPTXT,01,01,01,NMEA unknown msg*58
>
> $GPTXT,01,01,01,NMEA unknown msg*58
>
> $GPTXT,01,01,01,NMEA unknown msg*58
>
> $GPTXT,01,01,01,NMEA unknown msg*58
>
> $GPTXT,01,01,01,NMEA unknown msg*58
>
> $GPTXT,01,01,01,NMEA unknown msg*58
>
> $GPTXT,01,01,01,NMEA unknown msg*58
>
> $GPTXT,01,01,01,NMEA unknown msg*58
>
> $GPTXT,01,01,01,NMEA unknown msg*58
>
> $GPTXT,01,01,01,NMEA unknown msg*58
>
> $GPTXT,01,01,01,NMEA unknown msg*58
>
> $GPTXT,01,01,01,NMEA unknown msg*58
>
> but from this link
> http://docwiki.gumstix.org/Frequently_asked_questions/GPSstix_and_Audiostix2#What_can_I_do_with_the_GPS_data_on_the_gumstix.3F
> it says that I need to use gpsd to collect the data.
> I tried to follow few steps to bitbake the gpsd , but i got error during
> compilation.
>
> actually I just need to get the UTP time from GPS receiver.
> am I looking at the right thing?
> sorry, I'm confused at these.
>
>
> James Coxon wrote:
>>
>> Hi,
>>
>> Have you tried just using cat?
>>
>> cat /dev/ttyS2
>>
>> Data should start coming through - if it is garbled you'll need to
>> change the speed of the serial port, have a look here:
>>
>> http://www.pegasushabproject.org.uk/wiki/doku.php/missions:pegasus3#gps
>>
>> James
>>
>> 2009/8/3 cruizbugs <cru...@ya...>:
>>>
>>> I can't get them to run,
>>>
>>> This is what i faced:
>>>
>>> root@gumstix-custom-verdex:~$  gpsd -n /dev/ttyS2
>>> -sh: gpsd: not found
>>> root@gumstix-custom-verdex:~$ gpspipe -r
>>> -sh: gpspipe: not found
>>>
>>> Is there any  settings that i have to do?
>>>
>>>
>>> Don Shrum wrote:
>>>>
>>>> You should be able to get data using the command gpspipe.  I was
>>>> installed on our verdex with the factory flash.
>>>>
>>>> On Thu, Jul 30, 2009 at 10:28 AM, cruizbugs<cru...@ya...> wrote:
>>>>>
>>>>> Hi, I just got a GPSstix, i saw a u-blox NEO-4S-0-000 chip there. so i
>>>>> think
>>>>> this must be the GPSstix that use PCB00012 (version R791), am I right?
>>>>>
>>>>> I'm still new to this and I want to use this GPSstix to obtain UTS
>>>>> date-time.
>>>>> but, i dont understand how to get the GPS data.
>>>>>
>>>>> I noticed that I have to buy an Active Antenna and install it to my GPS
>>>>> stix.
>>>>> But how can I get those GPS string data like
>>>>> "Thu Jan  1 00:06:58 1970 :$GPGGA,,,,,,0,00,99.99,,,,,,*48"?
>>>>> I saw this data from
>>>>> http://www.nabble.com/GPSstix-not-acquiring-position-td23005102.html#a23050621
>>>>> here
>>>>>
>>>>> Is there any settings that i have to do? I cant find any manual on
>>>>> this.
>>>>> So far I've only found out that I have to set the GPIOpins for STUART
>>>>> to
>>>>> work as Tx Rx, am I right?
>>>>> I read it from this entry :
>>>>> http://www.nabble.com/Learning-how-to-use-GPIO-td22873709.html#a23289004
>>>>> but i don't understand what are the next steps that I must do.
>>>>> Or is the GPS antenna will be automatically output those string
>>>>> automatically on command prompt?
>>>>> Thanks in advance.
>>>>>
>>>>> --
>>>>> View this message in context:
>>>>> http://www.nabble.com/How-to-obtain-a-GPS-data-tp24739558p24739558.html
>>>>> Sent from the Gumstix mailing list archive at Nabble.com.
>>>>>
>>>>>
>>>>> ------------------------------------------------------------------------------
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>>>>>
>>>>
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>>>
>>> --
>>> View this message in context:
>>> http://www.nabble.com/How-to-obtain-a-GPS-data-tp24739558p24786082.html
>>> Sent from the Gumstix mailing list archive at Nabble.com.
>>>
>>>
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>
> --
> View this message in context: http://www.nabble.com/How-to-obtain-a-GPS-data-tp24739558p24786693.html
> Sent from the Gumstix mailing list archive at Nabble.com.
>
>
> ------------------------------------------------------------------------------
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> trial. Simplify your report design, integration and deployment - and focus on
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