Re: Typical flash-based storage features and performance



Un bel giorno Spoon digitò:

The data *** also mentions a pair of DMA signals

DMACK and DMARDY, they are missing in some CF adapters too. Make sure they
are connected to the IDE controller.

but I can't figure out how to enable DMA.

You should. In my experience with CompactFlashes used with PC104 systems,
enabling the DMA mode had a tremendous impact on performances (either T/R
and CPU occupation).

Do modern flash-based IDE-compatible storage solutions offer more
features, like DMA bus mastering, multi-word DMA, Ultra DMA, higher PIO
modes and better throughput (both interface and sustained)?

Almost every CompactFlash (some are UDMA, some are multiword DMA). I don't
know if this is true also for DOMs.

--
emboliaschizoide.splinder.com
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