Re: [Paparazzi-devel] lisa has a different GPS interface?

[Marvin Wang]

hi Chris,

i had tried that use ublox center in windows and it get lock within 1
minute,(first time), but when it goes on my lisa/m2.0, it is another
story. the GPS is very hard to get locked,  up to 10~20 minutes to get
locked on my balcony.  in the field it takes more than 2 minutes. i
dont know what causes this.



2012/6/25 Chris Wozny <address@hidden>:
> Marvin,
>
> We've used both a uBlox LEA-5H and uBlox MAX-6Q GPS and both have
> started within 30 seconds. The LEA-5H used the 5V input since it had
> the 3.3V regulator on it, however, the MAX-6Q didn't so we changed the
> jumper configuration to give UART3 3.3V. Either way, the only time it
> took longer than a minute was on first (cold) start. I'd recommend
> taking your GPS and connecting to a USB-to-UART device and checking
> with some terminal application (screen command in Linux or CoolTerm
> for Mac OSX.) If you're on Windows, you could just use UBXCenter to
> see how long it takes to get a lock.
>
> - Chris
>
> On Mon, Jun 25, 2012 at 10:25 AM, Marvin Wang <address@hidden> wrote:
>> anyone that have also faced the slow GPS issues on lisa/m?
>
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