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Re: [emax] Re: Emax II + E6400 + CF card reader = Awesome!

2009-07-30 by Ted Summers

I can't directly comment on the emax2, but if it uses the same 5380 SCSI
controller, the SCSI bus controller does not implement hot swap capability,
I believe that is done in software or in the SCSI BIOS.
 Floppy drives have a signal on the bus called the "change line" that
indicates that you removed the disk and inserted a new one.
SCSI implementation on this IC doesn't have any sort of "changeline"....
Even so, the Emax 1 firmware doesn't implement removable media.....

From my experience with my Emax 1, I could swap the cards successfully
sometimes for formatting purposes (not always).
But if I had a card with banks, and swapped it, my Emax 1 still thought the
old catalog banks were there from its initial read, not new ones.

My MicroTech DPAI-SCSI has 2 slots, so I have 71 banks at 1 time (including
the floppy)- for me that is enough.....

I am using 32MB Sandisk Transflash on the Emax 1 with a generic 5 in 1
adapter. I have also used the Dazzle SD adapter as well.

Regards,
Ted
On Thu, Jul 30, 2009 at 7:42 AM, thenewyorkcowboy <
thenewyorkcowboy@...> wrote:

>
>
> After reading up on their card reader I've come to the conclusion that as
> more of us install CF readers (either externally or internally) in our Emax
> IIs, a chart would be in order to confirm compatibility of the actual CF
> cards we have tried with each setup.
>
> Also, it would be nice to find the circuit or logic chip that determines
> any hot-swappability of the drives. If the floppy can be hot-swappable, I
> don't see why we couldn't find a way of at least tricking the samplers to
> allow us to change cards while the unit is on. The first idea that comes to
> mind for me is a momentary DPDT switch that kills the power to the reader,
> that you would hold down while you changed cards, and when released the
> reader would power back on. I would hope that we could leave the drive
> select on that drive, but maybe we would have to change drives momentarily,
> power the reader off, switch cards, and release the button, then change back
> to the CF drive with drive select.
>
> If something this simple were possible, then we could at least save a huge
> step of transferring the bank to a HDD or ZIP, having to power off the unit,
> change cards, and power back on to be able to shuffle samples between CF
> cards instead of always having to use EMXP.
>
> I was also thinking of having two CF readers, but the ultimate result would
> be the same, having to power down the units entirely to be able to change
> even the first CF card...
>
> Any ideas out there why a floppy (0) can hot swap and not SCSI 1-6?
>
> --- In emax@yahoogroups.com <emax%40yahoogroups.com>, "s*" <scartattack@...>
> wrote:
> >
> > I picked up a CF card reader from SCSIforSamplers.com:
> >
> > http://www.scsiforsamplers.com/cfcard.asp
> >
> > I own 2 Emax II's (1 x 8mb Rack and 1 x 1mb Keyboard) and an e6400
> (128mb).
> >
> > I couldn't afford 3 card readers at the moment but, I do have a few SCSI
> > enclosures that I wasn't using so, I decided I would buy one card reader
> and
> > install it in the enclosure myself. JD at SCSIforSamplers was very
> helpful
> > and answered all my questions very quickly. After the card reader was
> > installed, I had a few problems formatting the CF card on the Emax II
> but,
> > soon came to the conclusion that it must be the card itself. After
> digging
> > through the Emax archives a bit I noticed that a few of you mentioned
> that
> > the CF card needed to be somewhat specific. Since the original Emax II HD
> > is 540mb's, I figured I would need to find a smaller card (although
> finding
> > cards under 1GB is not that easy these days unless you go online to find
> > them). I ended up going to several computer stores in Toronto and was
> > laughed at by most computer store employees because they could not
> > understand why i would be searching for something so obsolete. I finally
> > found 1 place that had a 128MB Apacer CF card. The guy sold it to me for
> $5
> > tax in. Later that day I found a few 512MB generic cards for $5 a piece
> as
> > well (although I knew they probably would not work). All the cards I have
> > seem to work fine on the e6400 but not the Emax II. Only the Apacer 128mb
> > seems to format/read/write OK. I have a friend bringing me a 512mb
> SanDisk
> > to work tomorrow. My goal was to create Emax II format cards as the e6400
> > can also read this format. Now what I have done is connected the card
> > reader to a DB25 switch box and I can now create Emax II samples and flip
> > the switch and load them into either the e6400 or the other Emax II. I
> also
> > have HD's in each of the machines and a Zip drive in the mix (although I
> > have had my share of HD's and Zips die over the years so, I think the
> more
> > backup I can have the better (and the CF card is silent which is another
> > bonus!)). As well, I have card readers for both my Mac and PC so the next
> > step I guess is to dump some of my Emax archives onto the card using
> EMXP.
> >
> > So far my opinion of the Card Reader is that it is totally worth the
> money.
> > The real tricky part is finding the compatible media for them!
> >
> > -s*
> >
> >
> > [Non-text portions of this message have been removed]
> >
>
> 
>


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