Thanks for the reply.
I wanted to put in a micro drive because of the better price to
storage ratio, but after you informed me that they won't last after a
month of being always on, I think i'll just wait for price of cf cards
to drop more.
--- In "Jesse Off" <> wrote:
> --- In "cppbasvb" <> wrote:
> > Can the compact flash slot support newer and faster compact flash
> > cards?
> > Will it be able to use the full speed of the newer cards?
> > And does it support microdrives?
> >
> > Basically are there any limitations to the cf slot?
>
> Our website http://www.embeddedARM.com runs on a single TS-7200 with
> a 4GB Sandisk compact flash card which is currently the largest CF
> out there. Even though some CF's are claimed as faster than others,
> they all still use regular IDE as the interface.
>
> The CF socket is wired in True-IDE mode and uses bus timing
> compatible with the slow PIO modes. By default, the CPU will be
> used in the Linux driver to suck data in from the 16bit data port
> when data is ready, but speed could be increased by using the
memory-
> to-memory copy features of the ep9302 DMA controller unit.
>
> Other limitations is that the CF is not hot-pluggable. The data-bus
> is unbuffered from the CF and insertion/removal could cause a glitch
> that could destroy an in-process SDRAM or flash access. However,
> you could prepare for hot-plugging/deplugging by halting the
> processer.
>
> Microdrives will not fit mechanically in the slot, though I have
> heard they will work if you have access to a file/dremel. We
> generally don't recommend microdrives for any embedded application
> due to their extremely high failure rate/low MTBF and high power.
> IIRC, In constant-on operation their MTBF lasts less than a month.
> Most applications of microdrives keep the devices powered-off and
> spun-down most of the time.
>
> //Jesse Off
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