[CQ-Contest] Two DVP's in one computer?

[David A. Pruett]

I am not a DVP expert, however from what I understand about the operation 
of the hardware and the associated TSR, each DVP will almost certainly have 
to have it's own IRQ and instance of DVPTSR.


, but At 09:15 PM 1/27/04 -0500, Mark Bailey wrote:
>Good afternoon, all:
>
>Has anyone tried installing TWO DVP's in a single computer under DOS?
>This would be for use with TRLog and CT.  Only one DVP would be used
>at a time.  It looks like I can change the base address of one DVP from
>the default 0x308 to 0x300 by removing jumper JP2.  The DVP in use
>would be selected using the address as an argument when starting
>DVPTSR.
>
>Both DVP's would share IRQ7 with the parallel port.
>
>Any thoughts on whether this will work?  I don't have the computer and
>DVP's here.  I want to ask before making a rather long drive!  I don't
>see why it wouldn't work, though.  :-)
>
>Thanks in advance and 73,
>
>Mark, KD4D
>
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