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Author Topic: PCMCIA<-->CF limit?  (Read 3367 times)

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Offline Doppie1200Topic starter

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PCMCIA<-->CF limit?
« on: July 22, 2006, 08:50:23 AM »
Hi,

I'd like to get me a 1GB Compact flash. Will it also work on my A600/1200. I use cfd and fat95 on my current compact flash. There is no limit described (or I have been looking poorly). But I'm sure there is a limit.

Anyone?

Thanks in advance.
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Offline systmcrsh

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Re: PCMCIA<-->CF limit?
« Reply #1 on: July 22, 2006, 09:16:46 AM »
i imagine it would be 4gb... just like ide limit. no reason to think otherwise, unless something in cfd or fat95 wont access data beyond a certain ammount. i use a 256mb sandisk card & sandisk reader no problems... i just know that some flashcards and cardreaders dont work. best to stick with the brand you currently use.
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Offline Chain

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Re: PCMCIA<-->CF limit?
« Reply #2 on: July 22, 2006, 09:18:30 AM »
im using 512mb sandisk, without any problems
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Offline jimbo100

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Re: PCMCIA<-->CF limit?
« Reply #3 on: July 22, 2006, 10:50:05 AM »
So you can plug a CF Card (with PCMCIA adaptor) larger than 4MB into the PCMCIA slot of an Amiga 600/1200 and it will work?
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Offline Thomas

Re: PCMCIA<-->CF limit?
« Reply #4 on: July 22, 2006, 12:58:49 PM »
Quote
So you can plug a CF Card (with PCMCIA adaptor) larger than 4MB into the PCMCIA slot of an Amiga 600/1200 and it will work?


Certainly. Why shouldn't you ? The PCMCIA port has an address space limit of 4MB, but a CF adapter does not need any address space except a few I/O registers.

The limit of CF cards depend on the implementation of the cfd.device or whatever it's called. If it implements NSD or TD64 commands, there is not even a 4GB limit.

Bye,
Thomas
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Offline jimbo100

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Re: PCMCIA<-->CF limit?
« Reply #5 on: July 22, 2006, 01:12:18 PM »
So does it get used as system memory or storage space.  Reason I ask if I am about to obtain a A600 and I have plenty of spare CF cards.

What is cfd.device, software?  Where does one obtain it?
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Offline Akiko

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Re: PCMCIA<-->CF limit?
« Reply #6 on: July 22, 2006, 01:42:09 PM »
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Offline jimbo100

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Re: PCMCIA<-->CF limit?
« Reply #7 on: July 22, 2006, 02:17:50 PM »
Yes I have one of them already...what I wanted to know was how the A600 would use it if I plugged a 32MB CF card into it?

Would it become system memory or storage space and would I need to have additional software in order to use it.

For the picture I'd assume its going to be storage space?
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Offline Chain

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Re: PCMCIA<-->CF limit?
« Reply #8 on: July 22, 2006, 02:32:50 PM »
yup, it will be like removable HDD
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Offline countzero

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Re: PCMCIA<-->CF limit?
« Reply #9 on: July 22, 2006, 02:51:02 PM »
Quote

jimbo100 wrote:
Would it become system memory or storage space and would I need to have additional software in order to use it.


you'll need the fat95 filesystem driver and cfd.device, both of which are available at aminet.
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Offline amigagr

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Re: PCMCIA<-->CF limit?
« Reply #10 on: July 22, 2006, 02:52:20 PM »
Quote

Doppie1200 wrote:
Hi,

I'd like to get me a 1GB Compact flash.



i'm using an 1gb kingston cf with pcmcia adaptor and fat95. it's fine  :-)
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Offline Doppie1200Topic starter

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Re: PCMCIA<-->CF limit?
« Reply #11 on: July 29, 2006, 01:17:34 PM »
Unfortunately the 'peak 1GB' I just bought does not work at all.  :-?  :getmad:  :madashell:  :angry: Now I have to think up an excuse to trade it in!
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Offline LoadWB

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Re: PCMCIA<-->CF limit?
« Reply #12 on: July 31, 2006, 06:37:55 PM »
I just received my PQI 4GB CF card today from Digi4Me (only $84.)  It came formatted FAT32 so I had to reformat it on the XP machine to FAT: I had to use the Disk Manager and I received a warning that the allocation units would be > 32k.  I also had to change the filesystem in the CF0 mountlist from l:CrossDOSFileSystem to l:fat95.  Now it recognizes the CF card as a 4GB drive.  I will be copying stuff over to it to make sure it really works, but right now c:info recognizes it as 4008MB, 561 used, 8209536 free, 0% used.

I could possibly format it with the proper cf0: to FAT as well.  I am going to try that, too, and see how the transfer between PC-Amiga works.

My next step is to put it inside the 1200 and get it rigged as a CF hard drive to replace my current 512MB card.
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Offline adolescent

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Re: PCMCIA<-->CF limit?
« Reply #13 on: July 31, 2006, 07:31:10 PM »
@LoadWB

Why did you do that?   Fat95 supports FAT32.
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Offline LoadWB

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Re: PCMCIA<-->CF limit?
« Reply #14 on: July 31, 2006, 08:25:32 PM »
Either I did not RTFM, or I did not see that far into the project.  Somehow (I don't recall doing it manually) the FileSystem in my CF0 mountlist was set to CrossDOSFileSystem, and I was operating under the assumption that I would keep that.  I later switched back to fat95 when CrossDOS wouldn't recognize the large FAT cluster size.

Does fat95 support writing to FAT32, or just reading?  And is it stable for doing so?
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