Possible hardware configurations
These are some possible hardware scenarios where you could use this DOSPlus extender:
- You have no floppy controller. By using the extender you will be able to apply all of the DOS commands
to any VDK file in a Drivewire Server. Remember VDKs must be DW4 compatible (256 bytes length header).
All the extra hardware you will need is a converter to connect the parallel port to a server’s USB.
That way you can work with up to 4 units, each linked to a DW4 slot using DosPlus4.9b or DosPlus5.0.
See Tormod’s USB2Parallel adapter at:viewtopic.php?f=6&t=4270
- You have a floppy controller but no CoCo-SDC. In this case you can configure the 4 units to be floppy or
virtual VDK disks upon your needs. This will allow you to copy a VDK to a physical floppy or the other way round,
simply using the D.O.S. BACKUP command.
In order to communicate with the Drivewire server you will need an adapter (like Tormod’s one)
- You have no floppies but you own a CoCo-SDC module. Then you could do the same than with floppies
but using two units (1-2) linked to SDC drives, the other two being for DW4.
You could even flash any SDC bank with ROMs or whatever you know that could work from $C000 on.
The commands WRITE and SCOPY will be of help for that purpose. Drivewire will require the before mentioned adapter.
- You are the happy owner of a Tandy Multi-Pack Interface compatible with Dragon (I mean not updated to work with CoCo3),
then you can connect there the floppies and the SDC you’d have.
This allows the use of floppies, SDC and Drivewire VDKs at the same time.
You would be even able to copy between floppy and SDC files (DSK or SDF) despite the switching problems commented in Part I