SN10 USB connection

Is it possible to use a USB SD card reader with the new SN10 USB
port? Apparently, Winscore prefers SD-type media over USB thumbdrives
when it comes to fast downloading of .igc files, so in the interest of
keeping contest scorers happy, inquiring minds want to know.

Of course, I could just go out to the glider and try it, but that
can't happen till this weekend...

Woohoo, contest season is firing up!

Kirk
66

On Apr 13, 9:58*am, "kirk.stant" wrote:
Is it possible to use a USB SD card reader with the new SN10 USB
port? *Apparently, Winscore prefers SD-type media over USB thumbdrives
when it comes to fast downloading of .igc files, so in the interest of
keeping contest scorers happy, inquiring minds want to know.

Of course, I could just go out to the glider and try it, but that
can't happen till this weekend...

Woohoo, contest season is firing up!

Kirk
66 things to support removable storage.

There should be no difference in what the USB adapter would see with
an USB thumb drive vs. a USB to SD card adapter. Obviously test with
your SD card adapter.

I don't see why Winscore or a CD would care about a thumbdrive vs. an
SD card. Somebody has a really fast USB2 or Firewire SD card reader
and is comparign that to a USB memory stick (which differ in
performance like SD cards do) and the performance in copying a several
100 kbyte or so file to the computer hard drive is significant?


Darryl

On Apr 13, 12:58*pm, "kirk.stant" wrote:
Is it possible to use a USB SD card reader with the new SN10 USB
port? *Apparently, Winscore prefers SD-type media over USB thumbdrives
when it comes to fast downloading of .igc files, so in the interest of
keeping contest scorers happy, inquiring minds want to know.

Of course, I could just go out to the glider and try it, but that
can't happen till this weekend...

Woohoo, contest season is firing up!

Kirk
66

Two part answer:

(1) Winscore, or any scoring program, could care less what
kind of media used for the files. The scorer may however
complain if you show up with 5.25" floppy disks.

(2) There are adapters that take a uSD card and make it
look like a USB thumb-drive. The one I have takes too
much power and doesn't work with the ILEC-SN10-USB
adapter.

Hope that helps,
See ya, Dave

On Apr 13, 2:02*pm, Dave Nadler wrote:

(1) Winscore, or any scoring program, could care less what
kind of media used for the files. The scorer may however
complain if you show up with 5.25" floppy disks.


Winscore doesn't care. However the operating system does take a while
longer to recognize a USB drive. Experience shows that SD cards beat
any other option in the scoring shack by a country mile.

-T8

T8 wrote:
On Apr 13, 2:02 pm, Dave wrote:


(1) Winscore, or any scoring program, could care less what
kind of media used for the files. The scorer may however
complain if you show up with 5.25" floppy disks.


Winscore doesn't care. However the operating system does take a while
longer to recognize a USB drive. Experience shows that SD cards beat
any other option in the scoring shack by a country mile.

-T8

What are scorers using for the OS - Win 98? Me? My XP computers find and
display a USB drive in 5-6 seconds vs 4-5 seconds for an SD card, not
enough time to go that country mile, even with 50 entrants. Does the
problem come from having 50 different USB drives, instead just 5 or 6
different ones?

--
Eric Greenwell - Washington State, USA (netto to net to email me)

On Apr 13, 3:12*pm, Eric Greenwell wrote:
T8 wrote:
On Apr 13, 2:02 pm, Dave *wrote:

(1) Winscore, or any scoring program, could care less what
kind of media used for the files. The scorer may however
complain if you show up with 5.25" floppy disks.

Winscore doesn't care. *However the operating system does take a while
longer to recognize a USB drive. *Experience shows that SD cards beat
any other option in the scoring shack by a country mile.

-T8

What are scorers using for the OS - Win 98? Me? My XP computers find and
display a USB drive in 5-6 seconds vs 4-5 seconds for an SD card, not
enough time to go that country mile, even with 50 entrants. Does the
problem come from having 50 different USB drives, instead just 5 or 6
different ones?

--
Eric Greenwell - Washington State, USA (netto to net to email me)

I also had trouble seeing a significant delay, and I was running
Windows 2000 under VMWare Fusion on a MacBook Pro (so some additional
overhead for device I/O though the virtualization software). There was
no noticeable difference in device detection speeds.

The internal operation of just about every internal SD card reader is
actually a USB interface, same with ExpressCard SD card readers.
PCMCIA is a bit different, but I'm surprised there would be a big
overhead just for USB device discovery. Is something strange going on
with autoplay?

I assume Dave's earlier comment about power consumption of USB to SD
card adapters referred to some of the larger desktop style ones, the
typical small SD to USB small adapters like my SanDisk MicroMate or
SimpleTech Bonzai draw very low currents. I don't have my USB breakout
cable handy or I'd measure the currents but I know it is low.

Darryl

On Apr 13, 7:40*pm, Darryl Ramm wrote:
I assume Dave's earlier comment about power consumption of USB to SD
card adapters referred to some of the larger desktop style ones, the
typical small SD to USB small adapters like my SanDisk MicroMate or
SimpleTech Bonzai draw very low currents. I don't have my USB breakout
cable handy or I'd measure the currents but I know it is low.

Darryl

I have a small converter that looks like a normal USB memory
stick, with a tiny slot in the end for a uSD card (I use this for
turning in FLARM log files). The combo (adapter plus uSD card)
draws 100ma, which is the max our adapter sources.

What it needs all that power for I have no idea...
Your mileage may vary !

Best Regards, Dave

PS: In windows device manager, switch to connection view,
and you can see the USB current for each connected device.
No need for breakout cables...

On Apr 13, 6:12*pm, Eric Greenwell wrote:
T8 wrote:
On Apr 13, 2:02 pm, Dave *wrote:

(1) Winscore, or any scoring program, could care less what
kind of media used for the files. The scorer may however
complain if you show up with 5.25" floppy disks.

Winscore doesn't care. *However the operating system does take a while
longer to recognize a USB drive. *Experience shows that SD cards beat
any other option in the scoring shack by a country mile.

-T8

What are scorers using for the OS - Win 98? Me? My XP computers find and
display a USB drive in 5-6 seconds vs 4-5 seconds for an SD card, not
enough time to go that country mile, even with 50 entrants. Does the
problem come from having 50 different USB drives, instead just 5 or 6
different ones?

--
Eric Greenwell - Washington State, USA (netto to net to email me)

Leo (Buckley) could tell you more, but afaik he doesn't read r.a.s.
On his system -- I've watched this -- SD cards are recognized much
faster than USB drives. If we all used USB drives with identical
drivers it would probably be a non-issue.

-T8

On Apr 13, 4:56*pm, T8 wrote:
On Apr 13, 6:12*pm, Eric Greenwell wrote:





T8 wrote:
On Apr 13, 2:02 pm, Dave *wrote:

(1) Winscore, or any scoring program, could care less what
kind of media used for the files. The scorer may however
complain if you show up with 5.25" floppy disks.

Winscore doesn't care. *However the operating system does take a while
longer to recognize a USB drive. *Experience shows that SD cards beat
any other option in the scoring shack by a country mile.

-T8

What are scorers using for the OS - Win 98? Me? My XP computers find and
display a USB drive in 5-6 seconds vs 4-5 seconds for an SD card, not
enough time to go that country mile, even with 50 entrants. Does the
problem come from having 50 different USB drives, instead just 5 or 6
different ones?

--
Eric Greenwell - Washington State, USA (netto to net to email me)

Leo (Buckley) could tell you more, but afaik he doesn't read r.a.s.
On his system -- I've watched this -- SD cards are recognized much
faster than USB drives. *If we all used USB drives with identical
drivers it would probably be a non-issue.

-T8

Could it be that the scorer usually has the SD card reader plugged in
and recognized by the computer and that somehow speeds the mounting of
individual contestants' SD cards whereas the USB drives need to get
recognized independently for each contestant?

9B