🚀 go-pugleaf

Does anyone know if it would be possible to connect a remote micro computer
to an ST through the DMA "port?"  I have a CP/M-68K machine with an RS232
and a PIO connection available and would like to use its 1024K RAM disk and
floppies as additional drives for the ST.  The RAM disk would be especially
useful.  I thought of using the DMA port because I was sure I could get the
other machine to imitate a diskdrive without the ST's knowing that there is
no disk there.  The software on the CP/M side should be easy if I just
treat the ST requests for directories as calls to user areas.  It would
need to translate sectors and directory requests from the ST format into
the CP/M format and back.

But I was wondering about signals from the ST ports and what would be
required to make them compatible with another machine.  If a DMA <-> RS232
were possible, it shouldn't be too hard to use any machine with an SIO as a
remote.  If the DMA plan would not work, what other ports, besides the
ST serial line, might be used?  I need the serial line for the modem.  Would
a RAM disk driver work as a model for an ST resident program to treat one of
the ST ports as a disk?  Then the program on the other end could handle the
sectoring and finding the files.