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IDE to USB

T

Tydog

n00b
Joined
Mar 19, 2002
Messages
37
//Moved to Storage

Alright so i"ve been thinking alot about this lately.
How exactly a IDE to USB cable work?
Does it just essentially connect all 40 pins from the IDE
cable to the 4 pins of the USB cable??

If this is true than I should be able to construct my own.
Unfortunately I have been unable to find ANY type of
tutorial what so ever for this using google. All I can
find is pinouts of the IDE interface and that of the USB
interface. This doesn't really help because I have no
clue which pins on the IDE interface go to those of the
USB interface.

Any help would be greatly appreciated!!
 
there faily complicated since you taking about 30 lines for datd and putting them into 2. by the time your done building it the cost of parts and time prob aren't worth it.
 
They don't directly go from IDE pins to USB pins, you have to have some sort of a chip interpretting the signals from USB and IDE cables and translating the data/requests being sent back and forth... It's not just a cable adapter!
 
IDE is a parallel interface, USB is a serial interface. There's no way to translate between the two in real-time with a zero-cycle delay. You'd need a buffer and a shift register just to do this conversion. Next, IDE can communicate at up to 100 MB/sec for ATA100 (800 Mbit) whereas USB 2.0 is 480 Mbit. Thus, you'll need a flow control protocol as well. Flow control over IDE is very simple. IIRC, the receiver can deassert one of the pins to signal a pause in the data stream, and the sender can stop sending strobes (no more transitions to latch data on).

Still sound fun? :)
 
Just go and buy one, people with alot more electronic engineering degrees than you spent a good amount of time developing the circuitry to convert IDE signals into USB signals....so why bother making your own? If you're wanting to make a special enclosure, just buy one of those enclosure kits and rob the guts from it.
 
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