Another disk imaging project
frustum at pacbell.net
Wed Aug 3 10:51:01 CDT 2005
Al Kossow wrote:
> > Is there anything the WD chip won't handle versus a raw track approach?
> Any format not derived from the IBM SD and DD standards.
> - HP 300
> - DEC RX02
> - TI FD1000
> - INTEL M2FM DD
> - AED 2500 and 6200
> - AED WINC05 5"
> Eric and I built a sampling reader as you suggested a while back.
> I would suggest storing deltas between transitions, measured at a
> much higher rate (from memory, Catweasel can delta at up to 40MHz
From the catweasel 3 docs:
> Setting clock speed:
> To set the clockspeed with the CatOption register, reset the memory counter
> to 0 by writing 0 to the CatAbort register. Writing 0 to CatOption will set
> the clock rate to 14Mhz. Writing 128 (0x80) to CatOption will set the clock
> rate to 28Mhz, and writing 192 (0xc0) to CatOption will set the clock speed
> to 56Mhz (to be precise, 56.644Mhz).
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