On Wed, Nov 9, 2016 at 12:59 AM, Christian Corti < c...@informatik.uni-stuttgart.de> wrote:
> On Tue, 8 Nov 2016, Josh Dersch wrote: > >> with the TC11 system," and I haven't managed to find it. I *have* found >> this: >> http://mirrors.pdp-11.ru/inf.informatik.uni-stuttgart.de/pdp11/dtf.mac >> > > ... which is simply a mirror of our FTP server at > ftp://ftp.informatik.uni-stuttgart.de/pub/cm/... > > I enhanced DTF with some useful messages and error/status output. IIRC the > "original" version produced no messages at all. > > (1) above, I'm not averse to thinking there may be more than meets the eye >> with this issue. >> >> So in a nutshell: Anyone used a TC11 on a later PDP-11 (like the 11/44)? >> Anyone have any thoughts on the diagnostics and formatter issues? >> > > I have a TC11 with TU56 on our 11/34. Did you check the WRTM/WALL switches? Yep, even ran DTF with them flipped the other way around out of superstition :). Now that I've gotten the full suite of diagnostics to run, the problem seems to be that the TC11 isn't reading properly in reverse -- Tests 15,16,21,22,26,27 and 34 of ZTCD fail, all others pass (modulo a marginal block on the tape causing a failure here and there). This would probably explain why DTF fails immediately after writing T&M, since it works in reverse from that point... Time to sit down with the schematics and figure out where the problem may lie. Thanks, all, - Josh > > > Christian >
