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Stache as memory stick - USB portable memory — Parallax Forums

Stache as memory stick - USB portable memory

ArchiverArchiver Posts: 46,084
edited 2003-12-07 15:40 in General Discussion
In searching today's ad's for a new hard drive (you don't want to
know why I need one) it seems there are a lot of USB memory stick
with 256k memory and a USB port.

Seems that would put all the software on the Stamp and eleminate
external devices. Just the ticket for remote data loggers and
pulling the data.

Now, to figure out how to send the data to that and use a PALM to
read them on site......

Dave



--- In basicstamps@yahoogroups.com, Tracy Allen <tracy@e...> wrote:
> >Question: can the Stache be reprogrammed with an SX-key (voiding
warranty of
> >course)?
>
> Yes, it can. There is a programming header (4 holes labeled +, -,
> x1, x2) on the Stache circuit board. It programs just as would any
> other SX18. The schematic is included with the Stache
documentation
> and is also available on our web site
> <http://www.emesystems.com/stache.htm>. You are welcome to try.
> (And if you want to restore it as a Stache, we can help you with
> that, too.)
>
> We did consider turning it into a memory module for data. I think
to
> be a viable product, though, it would need to have a lot more
memory,
> 512k at least, in an AT45 chip. On one hand, how is it going to
> compete with memory media out there that offer 256 megabytes less
> than $100? On the other hand, the Stache memory module would offer
> the convenience of an RS232 interface compatible with Stamp and
with
> any terminal program on the PC, like hyper-terminal. Would that
> convenience be worth $100, for 1/2 megabyte?
>
> -- Tracy
>
>
>
>
> >Hi Dave,
> >
> >The problem with dataloggers is that they don't allow random
access to
> >stored data, at least
> >I don't know any that does.
> >The reason I thought of the Stache is that it is SX18 based.
> >
> >Question: can the Stache be reprogrammed with an SX-key (voiding
warranty of
> >course)?
> >
> >Having written a 16bit filesystem for ram/eeprom for the Javelin,
and
> >knowing the SX18,
> >I am sure the SX18 has enough program space and variable space to
port that
> >filesystem
> >to the SX18. It is a simple filesystem, supporting only 32KB
memory (as in
> >the Stache),
> >Filenames are single character (eg. 'A', 'B' etc.) and supports the
> >following functions
>
>OpenForRead,OpenForWrite,OpenForRandom,Seek,Tell,Read,Write,Close,Flu
sh,Size
> >,Dir,Delete.
> >Each of these functions could be called from the stamp with a
command byte
> >plus
> >required parameters. This would give a nice portable filesystem
for the
> >stamp.
> >You could denote a file as boot file. holding parameter settings
like
> >baudrates, timing values
> >etc, without the need for setup code (with readable text)
programmed in the
> >stamp and save valuable program space.
> >
> >What do you think? Would that be a useful device?
> >
> >regards peter
> >
> >
> >
> >
> >
Original Message
> >From: "Dave Mucha" <davemucha@j...>
> >To: <basicstamps@yahoogroups.com>
> >Sent: Saturday, December 06, 2003 3:27 PM
> >Subject: [noparse][[/noparse]basicstamps] Re: Stache as memory stick
> >
> >
> >> --- In basicstamps@yahoogroups.com, "Peter Verkaik"
<peterverkaik@b...>
> >wrote:
> >> > Hi,
> >> >
> >> > Writing my previous message it occured to me that the Stache
could be
> >used
> >> > as an RS232 memory stick.
> >> > It would require new firmware though.
> >> > When connected to the stamp/javelin (acting as DTE) two
commands are
> >> > to be recognized by the Stache: a STORE command that lets the
stamp
> >> > controller write bytes to the Stache eeprom,
> >> > and a READ command that lets it read bytes from the eeprom. No
meaning
> >> > whatsoever is placed on the bytes.
> >> > That should be handled by the stamp program.
> >> >
> >> > When connected to the PC (acting as DCE) there must be a
special program
> >> > that reads/writes the Stache eeprom.
> >> > This way we would have an easy to use removable storage device.
> >> >
> >> > Question to the developers of Stache: is the above doable (or
even
> >> > desireable)?
> >> >
> >>
> >> I think there are a lot of us who want some from of portable
memory so we
> >can
> >> download the data and carry it back to the PC at home.
> >>
> >> HOBO data loggers have a BackPack unit that automatically
connects to a
> >data logger in
> >> the field, and then pulls the data.
> >>
> >> You bring that back to your PC and connect it for downloading
into your
> >PC.
> >>
> >> I'm not exactly sure how it works, if it resets the logger after
it down
> >loads or any of
> >> that.
> >>
> >> But having a portable unit, with battery, memory, and a few
indicators
> >would be really
> >> neat.
> >>
> >> Of course, in my thinking, the next logical thing is a display,
then
> >inputs.... Then of
> >> course the Sunday papers have advertisements for PALM Pilots....
> > >
> >> And that gets me to wondering if anyone is going to do a
Nuts&Volts on
> >Palm Pilots and
> >> the Stamp ?
> >>
> >> But, in answer to your original question, I do believe there is
some need
> >for some
> >> portable device to download.
> >>
> >
> > > Dave
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