[Simh] Extended SimH on BeagleBone controls real blinkenlight panels

[Jörg Hoppe]

> Im just talking about the system console. Im simulating an HP2100 
> system using simh and for this the system console is on the simh 
> console. Consequently, if I attach to the host computer using serial 
> and then run up the HP2100 system, the system console is on the serial 
> port. All the user terminals via the multiplexer are indeed on 
> telenet, for which a terminal server, or something similar, would be 
> needed to give serial i/o, but an ASR33 system console would be possible.

A BeagleBone with our "BlinkenCape" serves well as "serial-to-telnet" 
converter.
BlinkenCape has 4 serial ports, over which you can log in to 
Angstrom-Linux on the BeagleBone.
So
1. You connect your historic equipment (VT100, ASR) to one of the 4 
serial UARTs,
2. get the Linux prompt
3. connect to one of SimHs user terminal via telnet
4. then you have your serial device connected over a telnet tunnel to 
one of SimH's user serial ports

Feeling is much the way a LAT server works.
But you can access any simulated machine this way, not LAT serving 
PDP-11's and VAXes.

You don't even need an BeagleBone for this: every PC with login over a 
serial port will do.
For example, you can take the serial port on your desktop PC (if you 
still have one) and allow your Ubuntu to accept login sessions on it.

Joerg
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