What SCSI controller are you using - MVME320, 327 or 328 ? Do you reset the MVME177 board using RESET command from 177bug> along with SCSI bus reset option?
Best regards, Plamen On Tue, Jan 23, 2018 at 6:33 PM, Jack Harper via cctalk < cctalk@classiccmp.org> wrote: > > Greetings to the List from the Snowy Rocky Mountains. > > Beautiful clear sunny day here at +9F :) > > The SCSI controller on the 68K development system (VMEbus) that I have > cobbled together occasionally hangs after I reset one of the processor > boards (there are four MVME177-005 68060 boards in the VME rack). > > The hang then happens when my software touches the SCSI drives via the > ROM'd 68K/Bug I/O primitives and the hang will not go away even after > another reset until I cycle power. > > I have never before dealt with SCSI as a programmer - does this sound like > something is configured incorrectly? > > There is not much to configure. > > I point out that I am not certain that I have the termination resistors > correct. > > > Thoughts? > > I appreciate any advice. > > > Regards, > > Jack > Evergreen Colorado > > > > > > ------------------------------------------------------------ > ---------------------- > Jack Harper, President > Secure Outcomes Inc > 2942 Evergreen Parkway, Suite 300 > Evergreen, Colorado 80439 USA > > 303.670.8375 > 303.670.3750 (fax) > > http://www.secureoutcomes.net for Product Info. >