Messages in this thread | | | From | "Khimenko Victor" <> | Date | Sun, 23 Jul 2000 20:35:16 +0400 (MSD) | Subject | Re: VIA IDE driver, v1.5 (final) |
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In <20000723182343.A4271@suse.cz> Vojtech Pavlik (vojtech@suse.cz) wrote: >> If not so (which I assume), you cannot tell if you have the proper cable >> unless you transfer data and trash it. >> >> You might try to actively probe (like reading inquiry data at UDMA/16 >> and UDMA/66 and compare it), but this may succeed, while subsequent >> transfers fail. You never know.
> Fortunately all UDMA transfers are protected by safe enough CRC to see > if a transfer fails. This way you can know your cable won't do UDMA/66 > and switch to something slower. (UDMA/44 seems to work on most 40-wire > cables just fine). If that doesn't work, go even lower. Something like > modem autobauding ...
If it'll work like modem autobauding here (connect with speed limit=14400 and get 1.5Kbytes/second, connect with 33600 and spend 95% of time for retrains and thus transfer with 0.1Kbytes/second speed in the end) then better not...
P.S. Sorry, could not resist...
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