DQ614 and other Q-Bus questions

From: Megan <mbg_at_world.std.com>
Date: Mon Aug 10 14:34:17 1998

>Hmmmm, now this sounds ponentially very cool! According to the Field
>Guide this is a "Dilog ST-506 emulation of four RL01/02". Any one have
>info on this, and will it work in a system that has actually RL02 drives
>attached? It would make it a lot easier to get data on to the Hard Drive
>if I can just copy it from a RL02 to a fake RL02.

They should work, but only if you set them up to run at an address
different from the standard address for RLseries disks.

>How well do Boards with Boot ROMs co-exist with systems with another set
>of Boot ROMs? I'm threatening to throw the DQ606 in the 11/23 that I'm
>working on, so I can access the rack of drives that go with the
>controller.

Depending on the boot rom, a standard address is 773000. You can't have
two sets of boards which respond the this address (and there isn't a
standard I am aware of for assigning alternate boot code to an address).
On systems which I have configured which had boot code on the controller
card, the standard boot code had to be disabled.

                                        Megan Gentry
                                        Former RT-11 Developer

+--------------------------------+-------------------------------------+
| Megan Gentry, EMT/B, PP-ASEL | Internet (work): gentry zk3.dec.com |
| Unix Support Engineering Group | (home): mbg world.std.com |
| Compaq Computer Corporation | addresses need '_at_' in place of ' ' |
| 110 Spitbrook Rd. ZK03-2/T43 | URL: http://world.std.com/~mbg/ |
| Nashua, NH 03062 | "pdp-11 programmer - some assembler |
| (603) 884 1055 | required." - mbg |
+--------------------------------+-------------------------------------+
Received on Mon Aug 10 1998 - 14:34:17 BST

This archive was generated by hypermail 2.3.0 : Fri Oct 10 2014 - 23:30:43 BST