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Subject: Re: 2nd ATA Device on JB20 Recorder

Re: 2nd ATA Device on JB20 Recorder

From: Joaquim Carvalho <>
Date: 20 Jan 2003 13:01:28 +0000

The physical connection to a second ide/pccard/compactflash drive
is not an easy thing to - There are far too many pins to connect...

On Sat, 2003-01-18 at 17:59, roland wrote:
> Hi !
> Does anybody think, this (still fictional) hardware-mod is worth a try
> ? (also see attached pic)
> I`d like to use my Jukebox as a backup device for compact flash cards
> (digicam).
> Since CF cards are true IDE/ATA devices, perhaps this works. I already
> have some experience
> with passive CF2IDE adapters. (booting Linux from that)
> I`m also not shure, if could "see" 2nd. device from within rockbox
> without too much effort.
> If there is a chance, that a master/save combination can be handled
> with existing
> archos hardware, perhaps I will disassmble my JB and look onto PCD
> how HDD is being interfaced.
> Yes - we need to add code there - but maybe this is not too difficult.
> CF usually are formatted witch fat12 or fat16 - can existing fat32
> driver code handle that, or do I
> need addidtional driver code?
> I read the isd300 manuals and I`m quite optimistic, at least ISD300
> can handle 2 devices
> -----snipp---
> Master/Slave Selection
> Bit (5)
> Device number selection. This bit is valid only when "Skip ATA/ATAPI
> Device Initialization" is active. Under ISD-300A control ("Skip
> ATA/ATAPI Device Initialization = 0), the value is ignored.
> 0 Drive 0 (master)
> 1 Drive 1 (slave)
> ---snipp----
> But as i see - ISD300 is ONLY needed when interacing to usb!? So we
> don`t really need support for 2nd
> device of ISD300 - since what we get would be just "another" USB CF
> Card reader - and they are cheap today
> - anyway ;)
> Please tell me, what you think regarding chances for success on that.
> regards
> Roland
> PS:
> Shure , that "hack" won`t fit into the original JB case - but I will
> build a new case around my JB soon, anyway.
Received on 2003-01-20

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