30 Apr
2002
30 Apr
'02
8:32 a.m.
I have visited the site, but my question is apparently
not
frequent enough... from those who know, will "Hercules"
talk BISYNC or SNA down a sync serial pipe? I have some
toys here that emulate PU Type 2s (i.e., include a 3274
cluster controller emulator) and older HASP and 3780 workstations,
but they all expect a sync serial feed. I have the modem
eliminators, etc., so that's not a problem. The problem is
what to stick in a PeeCee that can be the Host end of the
conversation (i.e., the 37x5 end, from the viewpoint of my
peripherals). The Zilog 8530 SIO is smart enough to handle
the link-level protocol (we used it and the COM5025), but
outside of the classic Mac/Sun product line, you don't see
a ZSIO in every box.
I'd think you'd either need a PC serial card that uses a
USART instead of a UART, or a convert of some kind... but
I don't know how the converter would supply synch...
The Data General One notebook used the Intel 8251a USART
for serial I/O; it through me for a loop because writing
an interrupt handler for it is quite different from its
8250-based stablemates.
But it wouldn't be too hard to kludge up a design for a
single-port 8251a-based serial card...
-Douglas Hurst Quebbeman (DougQ at ixnayamspayIgLou.com) [Call me "Doug"]
Surgically excise the pig-latin from my e-mail address in order to reply
"The large print giveth, and the small print taketh away." -Tom Waits