I have recently discovered what look like very flexible programmable
microcontrollers from XMOS (www.xmos.com). I plan to use their XC-2
Ethernet versions to emulate a DEC DR(V)11-C interface to an Analogic
digitizer subsystem we have running off a MicroVAX (for over 20
years!). These devices look to be very easy to program, for example,
to adjust the timing of the data and control signal pulse widths. I
recommend anyone that wants to implement either a USB or Ethernet
emulator of a DEC DR11-type parallel interface (PIO or DMA) device for
SIMH take a look at these products.
Larry Baker
US Geological Survey
650-329-5608
[email protected]
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