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  • wa2flq's Avatar
    May 21st, 2019, 08:33 PM
    The M0847 (MXV11-A) being a multifunction card provides including memory, 2 x serial ports, crystal clock and rom devices. Make sure you don't have...
    5 replies | 193 view(s)
  • wa2flq's Avatar
    May 20th, 2019, 08:57 AM
    wa2flq replied to a thread ODT copy and paste in DEC
    Short Answer: S L O W L Y Long Answer: Some terminal emulators allow you to specify the delay between characters and/or delay between lines....
    6 replies | 117 view(s)
  • wa2flq's Avatar
    May 19th, 2019, 12:17 PM
    This is not a code, but the PC address when the processor halted - in octal. Its low in the 28KW range that RT11SJ would use. Its a bit hard to...
    5 replies | 193 view(s)
  • wa2flq's Avatar
    May 7th, 2019, 06:34 PM
    wa2flq replied to a thread SCSI2SD on a MicroVAX 3100 in DEC
    My V5 cards work fine on my MV3100/90 and the 4.8 firmware, but fail the self test in a MV3100/96 with "Normal operation not possible". However I...
    9 replies | 200 view(s)
  • wa2flq's Avatar
    May 7th, 2019, 09:29 AM
    wa2flq replied to a thread SCSI2SD on a MicroVAX 3100 in DEC
    I use them on the MV 3100/90 with VMS 5.5-2 and 7.3. with the V5 board. This hardware version accepts larger disks. I've only migrated from MV ->...
    9 replies | 200 view(s)
  • wa2flq's Avatar
    May 6th, 2019, 11:39 AM
    The SCSI2SD V5 boards work fine with SQ739, UC07 in my MVII, MVIII and also MV 3100/9x's internal SCSI controller for VMS 5.5-2 and 7.3. The list of...
    6 replies | 232 view(s)
  • wa2flq's Avatar
    May 6th, 2019, 07:40 AM
    wa2flq replied to a thread Autobooting UC07 and KDF11 in DEC
    The UC07 apparently manipulates the BDCOK (DC OK) and/or BPOK (AC OK) signals. It needs to DMA the bootstrap code from its internal eprom into...
    4 replies | 132 view(s)
  • wa2flq's Avatar
    April 26th, 2019, 08:04 PM
    PDP11GUI is nice as it doesn't depending on a working OS on the other end. It will copy the entire disk as an single image. If you have a DEQNA or...
    6 replies | 293 view(s)
  • wa2flq's Avatar
    April 26th, 2019, 01:41 PM
    If you have a Windows machine available - Check out http://www.retrocmp.com/tools/pdp11gui . There is a Disk Image section see...
    6 replies | 293 view(s)
  • wa2flq's Avatar
    April 25th, 2019, 03:18 PM
    wa2flq replied to a thread TSX-Plus help needed! in DEC
    I believe this message means that TSX ran out of low (0-20KW) memory before it finished loading all handlers. Without seeing the customizable part...
    15 replies | 466 view(s)
  • wa2flq's Avatar
    April 25th, 2019, 08:13 AM
    wa2flq replied to a thread TSX-Plus help needed! in DEC
    A Control-E should pause SIMH and you can change the throttle, then "continue' to once RT11 or TSX+ boots. As far as learning EDIT, set the...
    15 replies | 466 view(s)
  • wa2flq's Avatar
    April 24th, 2019, 08:54 PM
    wa2flq replied to a thread TSX-Plus help needed! in DEC
    TSX+ on SIMH is a bit tricky. TSX.sav checks for a functional time clock, in part by using a cpu wait loop to ensure LTC is generating interrupts. ...
    15 replies | 466 view(s)
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About kenwickvs

Basic Information

About kenwickvs
Biography:
Incessant digital hardware designer since 1974. There's no known cure. I have dabbled in low level software as a necessity to support my hardware addiction.
Location:
Raleigh, North Carolina, USA
Interests:
Digital Design, Real-time systems, Complex mechanical systems. How things work.
Occupation:
Retired engineering and manufacuturing company owner.

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