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>> Forum: alt.sys.pdp11                                     Power Search               [Image]
   >> Thread: pdp11/34 Front Panel Useage.                                                [Deja.com is hiring!!]
     >> Message 2 of 2
                                                                                       [Image]
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Subject:  Re: pdp11/34 Front Panel Useage.    [Image]                                     [Deja.com is hiring!!]
Date:     03/14/1999                          [Previous in Thread][Image]              [Image]
                                              [Image]
Author:   Carl R. Friend                                                                Explore More:
          <carl.friend@stoneweb.com>
            Posting History
                                                                  [Image]
 Tim. Bluck. wrote:
 >
 > Hello.
 >        I wonder if anyone can help,  I'm trying to use the
 > Octal keypad on a pdp11/34, and I havn't got a clue how to use it.
 >
 > I  would  like  to  be  able  to  enter  addresses [...]

     With the machine halted (CNTRL and HLT simultaneously) type the
 address on the keypad and hit LAD (Load ADdress).

 > and examine locations [...]

   With the desired address loaded, press EXAM. Press again for the next
 sequential location, &c....

 > to look for boot proms etc. [...]

   Try looking in 773000 to see if anything is there. That's a
 common location for boot, or console emulator, code.

 > and then maybe to boot.

   CNTRL-BOOT should force a jump to the boot (or console emulator) code        [Image]
 if there is any. This is the quick-start method.

 > And Single-Step.

   With the machine halted (see above) the HLT/SS button should
 single-step the machine.

   Depositing is done by loading the desired address, typing the desired
 new contents on the keypad and hitting "DEP". Repeat for sequential
 locations.

   http://www.ultranet.com/~crfriend/museum/misc/1134Con.html

 --
  ______________________________________________________________________
 |                                                |                     |
 | Carl Richard Friend (UNIX Sysadmin)            | West Boylston       |
 | Minicomputer Collector / Enthusiast            | Massachusetts, USA  |
 | mailto:carl.friend@stoneweb.com                |                     |
 | http://www.ultranet.com/~crfriend/museum       | ICBM: N42:22 W71:47 |
 |________________________________________________|_____________________|
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