[Simh] Configuring DMC11 Devices

[Mark Pizzolato]

On Sunday, January 3, 2016 at 2:17 PM, Paul Koning wrote:
> > On Jan 3, 2016, at 1:46 PM, Christian Gauger-Cosgrove
> <captainkirk359 at gmail.com> wrote:
> >
> > Well, I was attempting it with RSTS/E since the "XM0: is missing
> > ECO's, but will still function." error implies that the DMC11 device
> > would still function. I turned on debug for the DMC device using "SET
> > DMC DEBUG" and nothing seems to be getting printed even though the
> DMC
> > device is being "used" by RSTS/E.
> 
> You need to specify a debug output file, for example "set debug stdout".
> 
> With that, I see the following:
> 
> DBG(4762921805)> DMC REG: dmc_rd(DMC0), addr=0x003fe038, SEL0,
> data=0x8000
[...]
> 
> 
> Event type 4.11, Circuit initialization failure - circuit fault
> Occurred 20-Dec-28 17:13:27.0 on node 1.43 (SIMH43)
> Circuit DMC-1
> Reason = Circuit synchronization lost
> Adjacent node address = 0
> 
> 
> 
> Event type 4.11, Circuit initialization failure - circuit fault
> Occurred 20-Dec-28 17:13:27.0 on node 1.43 (SIMH43)
> Circuit DMC-0
> Reason = Circuit synchronization lost
> Adjacent node address = 0
> 
>   DBG(5118754449)> DMC TRACE: dmc_poll_svc()
> 
> 
> 
> That is with two DMCs pointing at each other:
> 
> sim> show dmc
> DMC	lines=2, connectpoll=2, address=17760070-17760107*
> 	vector=300*, 2 units
>   DMC0	attached to 10143, peer=127.0.0.1:11043, speed=0 (unrestricted)
> 	MicroDiag=enabled, type=DMC
>   DMC1	attached to 11043, peer=127.0.0.1:10143, speed=0 (unrestricted)
> 	MicroDiag=enabled, type=DMC

This configuration is very odd.  You've got DMC0 connecting to itself AND you've got DMC1 also connecting to itself using the exact same ports as DMC0.  I wouldn't expect this to ever work...

- Mark