[hacknews] DH tinkering hits problems

henry@utzoo.UUCP (Henry Spencer) (05/30/84)

After the shutdown for the evening yesterday, we spent a little while
testing out the second Emulex DH.  It seems to have problems.  Mostly
it works, but there's something wrong with the receive and transmit
interrupts.  The actual data transfer seems to work, as nearly as we
can tell, and the modem-control interrupts seem to behave more or less
as they should, but odd things happen with the data-transfer interrupts.
Sending characters in produces complaints about spurious interrupts
through 0670 (the new DH is at 0570), and the transmit interrupts seem
to be getting lost completely.  We tinkered for a bit and couldn't get
anywhere with it; we'll have to call Micos about it.  Fortunately the
thing is still under warranty.
-- 
				Henry Spencer @ U of Toronto Zoology
				{allegra,ihnp4,linus,decvax}!utzoo!henry