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3 - Amiga Extreme - 5 - Using Compact Flash as IDE Hardrive

on Thu 24 May 2007 by Zener/Ozone author listemail the content item print the content item create pdf file of the content item

in Diskmags > Jurassic Pack #17

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Using Compact Flash as IDE Hardrive
tutored by Zener/Ozone





After his JP16 tutorial on how to connect your electric girlfriend wirelessly to the web with little costs, Amiga-pimper Zener/Ozone continues in this issue with a review on the harddisk usage of compact flash adapters.

Using a Compact Flash Card as IDE HD


You can find them everywhere, well, in eBay mainly. The CF(Compact Flash) to IDE adaptors. As far I know the interface is very simple because CF system is based on the IDE interface. The adaptor can be found easily for less than 5 euros. Search "cf ide" on ebay to find some of them. But, why use CF instead of a hardrive?


Pros:

- Quiet, they don't make sound!
- They have low power consumption,
- No movile parts, perfect for party travels!
- No extra heat
- They're very small, they fit on A600/A1200.
- The adaptor is very cheap!
- If your CF adaptor has some lights on it, your amiga will look cool in the dark


Contras:

- Low capacity, now around 8GB
- Expensive, around 15-20 euros per GB
- Limited number of read/writes (on Amiga that's not a big problem)
- You can have some problems with certain CF cards


Putting the adaptor is very easy, open your amiga and locate the IDE connector. The CF adaptor tipically uses a floppy power connector, so you will need some skill to solve this problem. If you already have a power connector for an IDE 3.5" HD cable the best solution is to buy a splitter, it will convert the 3.5" power to an 3.5" power connector and a floppy power connector. Don't get wrong with the power cables. The power cables are the ones with four wires, not the thin one with a lot of wires (40/44). The big ones have connectors for 3.5" HD's and CD/DVD's. The smaller ones are for floppy drives.

Other option is to split the floppy power connector of your Amiga, this may need some soldering skills... or not. What I've done is cut the floppy power cable (4 wires), so I have one part with the amiga connector and the other part is the floppy power end. Getting another floppy power end, I can link the two ends to the one on the Amiga. Don't forget to insulate the links with insulating tape. You also can link the wires with other smarter methots.

Once the power subject is solved, then we have the data one. The CF IDE adapters usually use the 40 wire connector used for 3.5" HD's, so they are not directly compatible with the 2.5" HD connector found on A600/A1200.

The 2.5" to 3.5" adaptor is something we are used to, so I will not discuss about how to get it done. But I will tell you that in shops you can find "laptop HD to 3.5" adapters", for less than 7 Euros. Their use is to put an 2.5" HD in a desktop PC, but the inverse is possible. They can be used to put a 3.5" HD on a laptop(Amiga). Enough of this...







Connect the power and data connectors, be sure they are the right way. Then put your Compact Flash on the adaptor carefully. Secure the CF adaptor so it can't move doing a short circuit.

The next steps are the same as if you have a new hard drive. Switch on the Amiga and then insert workbench install disks, run HDToolBox, etc.

Well, maybe it's not all, there are some cards like Trascend CF, that are reported to not work very well with the Amiga. Now I have one of them and it's true they are hard to deal with. With OS3.9 and the CF as slave drive HDtoolbox doesn't recognize the drive, and if it does, you can't format it and gives read/write errors everytime. It you can avoid that type of Compact Flash cards.

That's what I have done with that card to make it work.

First, put the card on single card mode, then startup the Amiga with the OS3.9 emergency disk. Then run HDToolBox and detect the drive, make the partitions and edit the properties of them. MaxTransfer will be set to 0xffffff, set it to 0x000fff on all partitions and on drive. Save changes to drive.

Then reset and start with workbench disk but without startup-sequence. Run the "info" command to see if the CF drive is mounted. If it is format this command:

format drive hcf0: name system ffs intl quick

where hcf0: is the name of the partition you are formating. After formating all drives the Trascend card should work normally. You can install workbench on it of make it work with other drives (after running HDToolbox again).

Be very carefull if you do any modifications inside your Amiga! Putting the CF adaptor is easy but make sure the power wires are in correct position and insulated and the CF adapter is secure and it doesn't move when moving the Amiga.

If you have any problems you can write me an email (carlos.peris@gmail.com).

Greets!


Zener of Ozone - -email-


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