24 Feb
2007
24 Feb
'07
4:33 a.m.
Tony Duell wrote:
You _will_ lose the digitising functionality if you
use the HPIB
connector and set the machien to 'listen only' (if you can do that, most
HP HPIB plotters do have that feature). In that mode there is no way the
plotter can output data.
Of no relevance to me.
If the 9872 is like that, it should be very easily
possible to work out
what the 9815 interface is doing, since presumanbly it's also mostly
I had no qualms or questions about what it is doing, it appears quite
straightforward.
handled in hardware, possbily even much the same
hardware. From what
you've said, it must be more than just a listen-only (unaddressable) HPIB
interface, since the plotter can send data back to the 9815
Try re-reading my previous replies. You're making it more complex than it is.
The 9815 interface connection consists merely of:
- the 8 HPIB data lines (bidirectional)
- the 3 HPIB handshake lines (bidirectional)
- a reset/device-clear line
- a static 9815-mode assertion line
- common
In other words: un-addressed talk/listen HPIB-style data transfer.