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

[Christophe De Wagter]

Dear Marvin,

Could you specify if it is a Lisa-L or Lisa-M?

There is no difference between LPC and STM concerning the GPS. There might be some boards that have less clean power supply to your receiver though. 

-Christophe 

On Mon, Jun 25, 2012 at 8:17 AM, Marvin Wang <address@hidden> wrote:

hi all,

i have discovered that lisa is hard to get GPS 3Dfix than twog and umarim .
i have tested few times outdoor, with my 5H GPS. the lisa/m takes about 2~5min to get 3Dfix, however, towg and umarim takes less than 30s every time.  twog and umarim even can get fix indoor  (by the window).

i also find that when the ap get fix lisa has a less drift and the umarim has much more drift

so i wonder that if STM32 and LPC has different GPS interface?  and if so,  what can i do to get the lisa gps  faster? (waiting gps in the field is not fun at all)

any help is appreciate

Marvini

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