Re: Freescale iMX53 Quick Start board
On Fri, Aug 05, 2011 at 04:07:06PM +0000, Phil Endecott wrote:
> Hi Steve,
> Steve McIntyre <steve.mcintyre <at> linaro.org> writes:
> > Hi folks,
> > We've got a number of discount vouchers for these
> Too late for me...
> > We're about to purchase a number
> > of these for buildds for the Debian armhf port
> Hmm. Are you sure it's the best choice? It has a single Cortex A8 (like
> the old Beagle Board). The Panda Board has a dual Coretex A9. I've not
> benchmarked them, but I would expect the Panda to be a lot faster for
> CPU-bound tasks. The iMX53 has the advantage of SATA if you expect to be
> I/O limited, but if I were building a "farm" I think I'd seriously consider
> NFS and negligible local storage.
make + NFS = nightmare in many cases.
> My choice of the iMX53 was based mainly on its video features (it has
> analogue VGA out, which the Panda doesn't) and more than a bit of
> prejudice because I seemed to be the interested only person at CELF last
> year who didn't get a free Panda.
> Anyway, if you do go with the iMX53, do keep us informed. I'm currently
> working on mechanical/electrical things e.g. a box and power supply. Note
> that the board seems to have very little capacitance on its 5V power input,
> so it can "brown out" if you connect something (via USB or otherwise) that
> has non-trivial inrush current. There is also the fact that it powers-on
> "off" until you press a button, which I imagine is probably not the behaviour
> that you'll want.
I was wondering how their power control is done. Obviously a SATA drive
would need external power.