I would also like to see a SD card interface for the QL. We are in 2011 after
all.
Another thing I like about an SD card I/F is that it would be possible to
develop a simple accelerator for the unexpended QL without the need for it to
support floppy interface or hard drive. A bit like the
Hi,
data transfer from an SD card takes 0.4 microsecond per Byte in the most
simple mode, while the minimum cycle of the QL bus is 1.0 microsecond. So
both IDE and SD card are faster than the QL bus.
SD cards are smaller and cheaper than IDE drives. Both offer more size
than a QL filesystem
On Fri, Feb 4, 2011 at 5:02 AM, Peter pg...@q40.de wrote:
Hi,
data transfer from an SD card takes 0.4 microsecond per Byte in the most
simple mode, while the minimum cycle of the QL bus is 1.0 microsecond. So
both IDE and SD card are faster than the QL bus.
SD cards are smaller and cheaper
data transfer from an SD card takes 0.4 microsecond per Byte in the
most
simple mode, while the minimum cycle of the QL bus is 1.0
microsecond. So
both IDE and SD card are faster than the QL bus.
SD cards are smaller and cheaper than IDE drives. Both offer more
size
than a QL filesystem can
--- On Fri, 4/2/11, Peter pg...@q40.de wrote:
From: Peter pg...@q40.de
Subject: [Ql-Users] IDE versus SD card
To: ql-us...@q-v-d.com
Date: Friday, 4 February, 2011, 11:02
Hi,
data transfer from an SD card takes 0.4 microsecond per
Byte in the most
simple mode, while the minimum cycle
Plastic wrote, on 4/Feb/11 11:31 | Feb4:
snip
Everything you say is true. Common sense.
The main problem you have to overcome is 25 years of inertia. People are
familiar with hard drives. Also, people seem to think SD cars are dinky
like microdrives.
Oh what a *brilliant* misprint. Dinky
Lee Privett wrote, on 4/Feb/11 13:19 | Feb4:
Plastic wrote, on 4/Feb/11 11:31 | Feb4:
snip
Everything you say is true. Common sense.
The main problem you have to overcome is 25 years of inertia. People are
familiar with hard drives. Also, people seem to think SD cars are
dinky
like
Yes apparently, but dont you think this looks even better?
http://www.qlforum.co.uk/download/file.php?id=33mode=view
Lee Privett
-
Sent from my Laptop running XP
but emulating the QL using QPC2
Have you no *real* work to get on
Plastic wrote, on 4/Feb/11 11:31 | Feb4:
snip
Everything you say is true. Common sense.
The main problem you have to overcome is 25 years of inertia.
People are
familiar with hard drives. Also, people seem to think SD cars are
dinky
like microdrives.
Oh what a *brilliant* misprint. Dinky
- Original Message -
From: Dilwyn Jones dil...@evans1511.fsnet.co.uk
To: ql-us...@q-v-d.com
Sent: Friday, February 04, 2011 11:55 AM
Subject: Re: [Ql-Users] IDE versus SD card
data transfer from an SD card takes 0.4 microsecond per Byte in the most
simple mode, while the minimum
Ian,
How many erase/re-write cycles is each bit in modern flash memory good
for nowadays? SD cards would be great for storing libraries of programs
and data that don't change frequently, but what about using them, for
example, for frequently changing temporary files generated by running
A lot of them nowadays have load balancing code in the hardware.
If it
notices a hot spot, it reorganises the data to avoid that hot spot.
Cheaper ones, probably done.
I vaguely remember that Tony Tebby's drivers for RomDisq from TF
Services might have had something like this. Tony?
(Guess
Also, Tony, how feasible is it to repurpose the RomDisq work for use with
removable flash-type storage like CompactFlash or SDHC?
Dave
On Fri, Feb 4, 2011 at 10:05 AM, Dilwyn Jones
dil...@evans1511.fsnet.co.ukwrote:
A lot of them nowadays have load balancing code in the hardware. If it
Norman Dunbar wrote, on 4/Feb/11 15:46 | Feb4:
Ian,
How many erase/re-write cycles is each bit in modern flash memory good
for nowadays? SD cards would be great for storing libraries of programs
and data that don't change frequently, but what about using them, for
example, for frequently
Dilwyn Jones wrote, on 4/Feb/11 16:05 | Feb4:
A lot of them nowadays have load balancing code in the hardware. If it
notices a hot spot, it reorganises the data to avoid that hot spot.
Cheaper ones, probably done.
I vaguely remember that Tony Tebby's drivers for RomDisq from TF
Services might
Plastic wrote, on 4/Feb/11 16:50 | Feb4:
Also, Tony, how feasible is it to repurpose the RomDisq work for use with
removable flash-type storage like CompactFlash or SDHC?
I have no documentation on Tony Tebby's driver.
Of course anyone is welcome to contact him.
Stuart Honeyball wrote the
Dilwyn Jones wrote:
I vaguely remember that Tony Tebby's drivers for RomDisq from TF
Services might have had something like this. Tony?
I am willing to spend an amount for TT, if he is willing to derive the
ROMdisque driver for the SD Cards. I'll hope, others are also willing to do
so. I am
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