The release notes on bitsavers indicate that the RX33 was not supported until RT-11 V5.04.
John. > On May 6, 2019, at 6:20 PM, Charles via cctalk <cctalk@classiccmp.org> wrote: > > I have installed an RQDX3 and the M9058 distribution board in my 11/23+. > Since I don't have a 5.25" drive yet, I hooked up a 3.5" HD (1.44 MB) drive > from an old PC. > After a struggle (which I documented on VCFED's DEC forum), I managed to get > all the jumpers and cables set correctly, and now my XXDP diagnostics (ZRQA?? > ... ZRQF??) recognize the drive as an RX33 (DU0:, logical drive 0 since no > hard disks are attached). It passes all the tests, and I can INIT, DIR, and > copy files to it using the limited OS with the XXDP suite. The LED on the > RQDX3 blinks once when the drive is accessed. So far so good. > > But, when I boot the system (with RT-11SJ V5.01), it can't see the drive at > all. Attempts to access it result in the command hanging indefinitely, the > drive does not select, and the RQDX3 lamp flashes rapidly. SHOW DEV:DU does > say that the handler is installed for the correct 172150, 154 location. > However, SHOW DEV:DUn where n=[0..3] displays two blank lines then back to > the dot prompt. > > Is my version of RT-11 just too old to recognize an RX-33? If so, what do I > need to fix this? Presumably a later DU.SYS? > Thanks for any help. Most of my experience is with PDP-8's so this is slow > going... > -Charles >
