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Re: [Paparazzi-devel] Umarim


From: Hector Garcia de Marina
Subject: Re: [Paparazzi-devel] Umarim
Date: Thu, 6 Oct 2011 17:18:28 +0200

Hi Gareth,

thank you very much for your explanation :P. Actually I wanted to know different opinions about the two boards.
Nowdays there are many boards available with similar performances and features, and I am interested in these little details that makes you to make a good choice.

Héctor.

On Thu, Oct 6, 2011 at 3:00 PM, Gareth Roberts <address@hidden> wrote:
Hi Héctor,

I'm with Marc on this.  I appreciate that Lisa/M or L are technically
more powerful, and have an IMU available as an external board.

I see the two as complimentary.

I like the tiny form factor of the Umarim, the fact that it is pretty
much backward compatible with all my airframe files, the onboard IMU and
the fact they are less of a hassle to get made up, the firmware is
stable and I don't like programming via JTAG.  I see it as the spiritual
successor of the Tiny.

Whilst the Lisa is more powerful, for this project I don't *need* the
power.  I need the plane to stay the right way up and carry out a
flightplan.  A standard Tiny/TWOG does everything I want already, I'd
just rather have some Umarim's because they are smaller, include IMU,
and they get rid of the dreaded 5V switchmode PSU.

The STM32 gives a bit more grunt, but if I need more processing grunt
I'll lift a beagleboard or gumstix anyway and have access to a proper
operating system, drivers, orders of magnitude more power & simpler
debugging.

My two pence,
--G


On Thu, 2011-10-06 at 14:21 +0200, Hector Garcia de Marina wrote:
> Hello all,
>
> I have been checking out the board and I really like the design and
> layout of the Umarim. On the other hand Lisa/L is based on CortexM3.
> In my opinion ARM7 (Umarim) is to step back for new designs, moreover
> when the new CortexM4 is currently available.
>
> Maybe I missing something, and I would like to know what are the
> reasons of prefeering Umarim over Lisa/L.
> Thanks in advance.
>
> Héctor.
>
>
> On Thu, Oct 6, 2011 at 2:06 PM, Gareth Roberts
> <address@hidden> wrote:
>         Hi all,
>
>         Nice to see the interest.  I'm currently waiting on getting a
>         quote back
>         from the manufacturer; when I do I'll have some prices.
>         I'm in discussions with our accounts department regarding
>         other people
>         purchasing boards from us.
>
>         Cheers,
>         Gareth
>
>
>         On Wed, 2011-10-05 at 20:18 +0000, Gareth Roberts wrote:
>         > Hi all,
>         >
>         > I'm planning on getting some Umarim boards made up for a
>         project we are working on.
>         > Obviously the bigger the volume the cheaper it's going to
>         be.
>         >
>         > Any UK dwellers interested?
>         >
>         > Cheers,
>         > Gareth
>         > _______________________________________________
>         > Paparazzi-devel mailing list
>         > address@hidden
>         > https://lists.nongnu.org/mailman/listinfo/paparazzi-devel
>
>
>
>         _______________________________________________
>         Paparazzi-devel mailing list
>         address@hidden
>         https://lists.nongnu.org/mailman/listinfo/paparazzi-devel
>
>
>
>
> --
> Héctor
>
>
> _______________________________________________
> Paparazzi-devel mailing list
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> https://lists.nongnu.org/mailman/listinfo/paparazzi-devel



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Héctor



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