Author Topic: CMU200 CF card problems  (Read 1675 times)

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Offline aijuTopic starter

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CMU200 CF card problems
« on: January 07, 2018, 12:17:37 pm »
I just bought a CMU-200 with FMR5 board and I'm trying to get it to read from CF cards with a CF-PCMCIA adapter. There are some bizarre corruption issues, files without too many null bytes in a row seem to read fine (I've tried a few hundred KB), but files that do have lots of null bytes in them end up with null bytes moved around in a random fashion. I've seen this problem with two CF adapters (Transcend and Spartechnik) and two CF cards (Platinum(?) and Transcend). Has anyone had any luck with CF-PCMCIA adapters?
 

Offline CJay

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Re: CMU200 CF card problems
« Reply #1 on: January 08, 2018, 12:56:13 pm »
Yes, mine works fine but with 256MB cards, I suspect it may have problems with larger cards?
 

Offline texaspyro

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Re: CMU200 CF card problems
« Reply #2 on: January 08, 2018, 08:31:27 pm »
A lot of older equipment can flake out with disks/cards over 2 GB due to the limits of the FAT16 file system.
 

Offline aijuTopic starter

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Re: CMU200 CF card problems
« Reply #3 on: January 09, 2018, 07:52:16 pm »
Yes, FAT16 is the obvious issue. I've been using a DOS virtual machine to make a 2GB FAT16 partition on these cards.

It seems to work fine with a much more expensive delkin devices 4GB card. I guess the cheap ones don't like the long wires in the adapter or something along these lines.
 

Offline ZL1CVD

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Re: CMU200 CF card problems
« Reply #4 on: April 24, 2018, 12:00:45 pm »
Must use 2GB or lower card with CMU or CRTU. Format is FAT16 only...

FWIW - For units with USB, I picked up a cheap USB DVD-ROM from eBay. It works fine and have used it to install Win98 and other stuff onto a CRTU.

ATAPI IDE Flash drives also work and speed booting up a bit. 
« Last Edit: April 24, 2018, 12:04:30 pm by ZL1CVD »
 

Offline CJay

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Re: CMU200 CF card problems
« Reply #5 on: April 24, 2018, 12:16:41 pm »
Must use 2GB or lower card with CMU or CRTU. Format is FAT16 only...

FWIW - For units with USB, I picked up a cheap USB DVD-ROM from eBay. It works fine and have used it to install Win98 and other stuff onto a CRTU.

ATAPI IDE Flash drives also work and speed booting up a bit.

Not true, the 8GB Lexar in my CMU200 is working perfectly well thank you.
 
The following users thanked this post: ZL1CVD, DavidAzulay5000


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