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</o:shapelayout></xml><![endif]--></head><body lang=EN-AU link="#0563C1" vlink="#954F72"><div class=WordSection1><p class=MsoNormal>Hi All,<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>I have just raised an Issue in simh #731 where when recent testing with a simh PDP11/94 Unibus system with 2 DEUNA interfaces it was found that device XUB did not initialize. Device XU worked normally. I have not yet been able have XUB start fully – no matter what CSR/VEC combination I have tried. I believe the current CSR & VEC are correct as they have been assigned – just that there appears some internal disconnect within the XU driver where XUB channel just does not do anything.<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>In the equivalent simh PDP11/93 Qbus system with 2 DEQNA both XQ, XQB worked normally.<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>The details of the actual system configuration is in the Issues log. With the absence of any messages from XUB it appears to be dead in the water – although when running the simh environment with DEBUG enabled in both XU, XUB I found that XUB stayed in xu_process_local() while the XU device had a lot of activity – which was expected since XU was working normally whereas XUB was not.<o:p></o:p></p><p class=MsoNormal>Unfortunately as I am not familiar with the XU driver code I have not been able to determine why the xub interface is not initializing correctly.<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Regards<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Geoff<o:p></o:p></p></div></body></html>