It would have to be option D for me too also, although I have only
unexpanded systems it would be a reliable way of testing software written
for unexpanded QLs and copying any existing software on microdrives across
on to the SD card before replacing the second drive with another SD module.
I would ask this question though, wouldn't the SD card adapter be configured
so that the SD memory such as Class 4 or Class 6 could be used as direct
access memory as apposed to external storage or isn't this feasible or still
not fast enough? Or even have one MD slot as dirext access and the other as
removable storage, how cool is that. Hmmmn maybe getting a little carried
away now.
Lee Privett
-------------------------------------------------------------
Sent from my Laptop running XP
but emulating the QL using QPC2
----- Original Message -----
From: "thorsten herbert" <thorsten_herb...@hotmail.com>
To: <ql-us...@q-v-d.com>
Sent: Tuesday, January 11, 2011 6:33 PM
Subject: Re: [Ql-Users] QL SD/MMC-Card interface survey (Peter)
Hi All,
I like Option D (internal replacement of a Microdrive). It's the best idea
in my opinion and the most practical to use.
I hope this will become reality!
Best,TH
De: "Peter" <pg...@q40.de>
?: ql-us...@q-v-d.com
Envoy?: Mardi 11 Janvier 2011 12h15:28 GMT +01:00 Amsterdam / Berlin /
Berne / Rome / Stockholm / Vienne
Objet: [Ql-Users] QL SD/MMC-Card interface survey
Hi all,
what would be your favorite style for an SD/MMC card "harddisk" for the
QL?
I can _not_ promise to really make a piece of hardware available, but it
would be nice to know, just in case...
A) External interface, plugs into parallel port of SuperGoldCard
Pro:
- Interface also works on Q40 and Q60
- QL Case doesn't need to be openened
- Easy reconnect from one machine to another
- Hot-plugging might work
- ROM-Port remains usable
Con:
- Slow data transfer through parallel port handshake lines
B) External interface, plugs into QL ROM port
Pro:
- QL Case doesn't need to be openened
- Faster data transfer
- Onboard Driver ROM
- Works on QL without GoldCard / SuperGoldCard
Con:
- ROM-Port occupied
- Complex hardware
C) Internal interface, plugs into CPU socket
Pro:
- Fastest data transfer
- ROM-Port remains usable
Con:
- QL Case needs to be openened
- Only GoldCard/SuperGoldCard machines
D) Internal interface, replacing a microdrive(!)
Can easily be bolted inside the case, after a microdrive was removed
Plugs into CPU socket or maybe other place
Pro:
- SD/MMC-card can be plugged in like a cartridge
- Looks cool
- Very "QL-style"
- ROM-Port remains usable
Con:
- QL Case needs to be openened
All the best,
Peter
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