15 Feb
2010
15 Feb
'10
8:14 p.m.
Dave McGuire wrote:
Shpuldn't this be the 'slowest' HPIB hard drive? THe point being that if
you are too slow then it's possible some hosts will time out and give
errors, but that performance is probably not too important for
enthusiasts running old HP machines, and provided it's not rediculously
slow, it will be useful.
IIRC many of the smaller HPIB drive units used standard ST412-interfaced
hard dreives with MFM controllers, and thus the standard data rate for
those. The next stup up used ESDI drives, again in the standard way.
There were a few larger units that used a HP's own HDA (8" platters?) and
electronics, presumably those were faster.
But I would think that any modern flash device would be comparable in
speed, if not faster.
-tony
SD and MMC can use what is more-or-less standard
SPI, or a 4-bit-wide
interface that's more difficult to use but much faster.
But as we are replacing disks which were on HP-IB, the normal few
MBytes/sec you get out of SPI whould be sufficient.
Or, what was the fastest HP-IB harddrive ?