Re: DEC ll/03 in 22 bit backplane

2017-08-30 Thread Paul Anderson via cctalk
If you want a different box or boards, feel free to contact me off list. Where are you located? On Wed, Aug 30, 2017 at 11:02 AM, Douglas Taylor via cctalk < cctalk@classiccmp.org> wrote: > On 8/30/2017 5:53 AM, Pete Turnbull via cctech wrote: > >> On 30/08/2017 05:29, Douglas Taylor via cctalk

Re: DEC ll/03 in 22 bit backplane

2017-08-30 Thread Jerry Weiss via cctalk
> On Aug 30, 2017, at 9:52 AM, Noel Chiappa via cctalk > wrote: > >> From: Jerry Weiss > >> The processor will probably halt due to non-existent memory address. > > No, it'll take a NXM trap (through 4); what happens then depends on what the > trap handler is set to -

Re: DEC ll/03 in 22 bit backplane

2017-08-30 Thread Pete Turnbull via cctalk
On 30/08/2017 17:02, Douglas Taylor via cctalk wrote: On 8/30/2017 5:53 AM, Pete Turnbull via cctech wrote: Hope this helps... Yes, it does help. There are 3 issues that I am trying to resolve: 1. Running in 32kb of memory. If I use the 32kb MXV11 can I run RT11 V5.3? If it works in

Re: DEC ll/03 in 22 bit backplane

2017-08-30 Thread Douglas Taylor via cctalk
On 8/30/2017 5:53 AM, Pete Turnbull via cctech wrote: On 30/08/2017 05:29, Douglas Taylor via cctalk wrote: I'll send along a picture of the rear of the back plane.  I'm getting  the impression I can't do what I want with the old cpu cards, M7270 and M7264. I had really hoped to be able to put

Re: DEC ll/03 in 22 bit backplane

2017-08-30 Thread Noel Chiappa via cctalk
> From: Jerry Weiss > The processor will probably halt due to non-existent memory address. No, it'll take a NXM trap (through 4); what happens then depends on what the trap handler is set to - if anything. > However, a P entered in ODT will attempt to continue the bootstrap. See

Re: DEC ll/03 in 22 bit backplane

2017-08-30 Thread Jerry Weiss via cctalk
> On Aug 30, 2017, at 8:04 AM, Jerry Weiss wrote: > >> >> Next you'd need some sort of bootstrap. What's in the custom EPROMs on you >> MXV11-AC might do. Or might not, depending on whether it uses any 11/23 >> (KDF-11) specific instructions or diagnostics, and includes an

Re: DEC ll/03 in 22 bit backplane

2017-08-30 Thread Jerry Weiss via cctalk
> On Aug 30, 2017, at 4:53 AM, Pete Turnbull via cctalk > wrote: > > On 30/08/2017 05:29, Douglas Taylor via cctalk wrote: >> I'll send along a picture of the rear of the back plane. I'm getting >> the impression I can't do what I want with the old cpu cards, M7270 >>

Re: DEC ll/03 in 22 bit backplane

2017-08-30 Thread Pete Turnbull via cctalk
On 30/08/2017 05:29, Douglas Taylor via cctalk wrote: I'll send along a picture of the rear of the back plane. I'm getting the impression I can't do what I want with the old cpu cards, M7270 and M7264. I had really hoped to be able to put together a simple system to demonstrate the

Re: DEC ll/03 in 22 bit backplane

2017-08-29 Thread Douglas Taylor via cctalk
On 8/30/2017 12:10 AM, Ethan Dicks wrote: On Tue, Aug 29, 2017 at 10:52 PM, Douglas Taylor via cctalk wrote: I have a BA11-M box with a backplane that I am sure has been upgraded to be 22 bit addressing. If you send me a picture of the backplane part of the box (without

Re: DEC ll/03 in 22 bit backplane

2017-08-29 Thread Douglas Taylor via cctalk
On 8/29/2017 11:43 PM, Jerry Weiss via cctalk wrote: On Aug 29, 2017, at 9:52 PM, Douglas Taylor via cctalk wrote: I have a BA11-M box with a backplane that I am sure has been upgraded to be 22 bit addressing. When I got this box it had an 11/23 Dual width Cpu,

Re: DEC ll/03 in 22 bit backplane

2017-08-29 Thread Ethan Dicks via cctalk
On Tue, Aug 29, 2017 at 10:52 PM, Douglas Taylor via cctalk wrote: > I have a BA11-M box with a backplane that I am sure has been upgraded to be > 22 bit addressing. If you send me a picture of the backplane part of the box (without the outer shroud), I might be able to

Re: DEC ll/03 in 22 bit backplane

2017-08-29 Thread Jerry Weiss via cctalk
> On Aug 29, 2017, at 9:52 PM, Douglas Taylor via cctalk > wrote: > > I have a BA11-M box with a backplane that I am sure has been upgraded to be > 22 bit addressing. > > When I got this box it had an 11/23 Dual width Cpu, MXV11-AC with custom boot > ROMs and a 256KB

Re: DEC ll/03 in 22 bit backplane

2017-08-29 Thread Paul Anderson via cctalk
I have the DEC cards, but I think that box had a 4 x 4 backplane and came with 16 bit addressing (M7264) and could be upgraded to 18. I'm out of town so I can't really check. You might need a BA11-N, S, or BA23 box to support the Emulex controller. The Q-bus backplanes can be confusing and I

DEC ll/03 in 22 bit backplane

2017-08-29 Thread Douglas Taylor via cctalk
I have a BA11-M box with a backplane that I am sure has been upgraded to be 22 bit addressing. When I got this box it had an 11/23 Dual width Cpu, MXV11-AC with custom boot ROMs and a 256KB MSV11-P memory board.  The memory in the MXV11 had been disabled so I suspect the backplane was