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G8NTJ > APPLE 11.10.99 01:56l 70 Lines 2130 Bytes #-9851 (0) @ WW
BID : AD0026G8NTJ
Read: DL6KCF DB9SH GUEST DK3EL
Subj: Problems with IIe serial I/O
Path: DB0AAB<DB0ZKA<DB0LX<DB0RBS<DB0SWR<DB0FP<DB0SRS<DB0SIF<DB0HSK<PI8DRS<
PI8DAZ<PI8GCB<PI8WNO<PI8HGL<PE1NMB<EA7URC<PE0MAR<GB7MBB<GB7CRV<GB7FYL<
GB7BOB<GB7OAR<GB7DEE<GB7WXM<GB7PMB<GB7MAX
Sent: 991010/1532Z @:GB7MAX.#28.GBR.EU #:15639 [Wolves] $:AD0026G8NTJ
From: G8NTJ@GB7MAX.#28.GBR.EU
To : APPLE@WW
The background.
About 15 years ago, a major European manufacturer of PMR
equipt decided to use a IIe as the programming tool for
one of the option modules on their equipt.
I now wish to set up a couple of these modules to 'play'
with the facilities available, in particular the 5 tone
signalling system.
Action
I have obtained a IIe, fitted with D1 and D2. CPU is
R6502-40, main board part no B 607 0264.
The only serial card I have been able to source is one
(in fact I've now got two!) made by California Computer
Systems, model 7710, built early 1983.
I also have of course a copy of the now obsolete genuine
software PMR utilities.
The problem.
The serial card resides in slot#2.
For the purposes of investigation I have a PC running
Procomm monitoring the serial port.
LOAD any apple basic program.
Issue PR#2
Issue LIST
As you may expect, the prog is listed to the PC.
No problems so far.
If I now issue IN#2 you would expect the PC terminal
emulation to have control over the IIe.
It doesn't.
Just in case I have missed somthing in the set-up,
I tried the PMR utilities. At the point where the
routine expects two characters as input( from what
would have originally been a Data I/O EPROM programmer
the whole thing hangs until ^reset.
The line in question is
430 GET AA$: GET PT$
Problems identified so far.
The I/O type 7710 was originally issued as -01,
(one of these cards is, the other had custom routines)
-01 doThe manual contains object code foron the IIe).
IN#2 hangs the whole caboodle.
BAD 7710 CARD I hear you cry!
So I tried the other one.
Same symptoms.
So I removed the ACIA and put a wire link from the ic
socket 2 to 6 (Tx-Rx), to prove the cables and flying leads.
The PC can send characters round the loop no problems.
Conclusion.
The IIe may have a system monitor other than that expected
by the 7710 firmware versions 01 and 03.
I might have two duff ACIAs'.
I favour option 1.
Can anyone help?-is this a known problem? Whats the fix?
For those who need to confirm some more details of
my system
The colour / mono switch is about half
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