8 Apr
2002
8 Apr
'02
10:58 p.m.
Hi,
For those of you following the saga of my attempts to resurrect my HP-IPC
here is the latest update.
I have managed to create diskettes that the IPC can read by using an
original 720kb PC compatible diskette drive and original double density
diskettes. I used OpenBSD (any Unix-like system should also work) and
the command dd if=IPC-IMAGE of=/dev/rfd0c to copy the images I downloaded
from the network to the floppy. Although some of the
images did not work
first time (and OpenBSD refuses to write to IPC formatted
diskettes) I
eventually managed to get most of the usefull files to IPC formatted
diskettes (by going through the IPC).
My next step is to see how to address HP-IB peripherals from the ROM BASIC.
I tried to use the following Series 80 program from the SERIES 80 HP-IB
Interface Owner's Manual
Original program:
10 S=7 @ ! Variabe S is select code
20 SET TIMEOUT S;500
30 ON TIMEOUT S GOTO 100
40 FOR I=0 TO 31
50 DISP "SPOLL DEVICE # ";I
60 S1=SPOLL(S*100+I)
70 PRINT "DEVICE ";I;" PRESENT"
* 80 NEXT I
90 STOP
* 100 ABORTIO 7
110 PRINT "DEVICE ";I;" NOT PRESENT"
120 GOTO 80
130 END
To get it to run on the IPC I added the following 2 lines
12 MASS STORAGE IS "/dev"
14 ASSIGN 7 TO "hpib"
Now the program runs but reports all 32 devices as present(!)
I only have an HP-9122D dual diskette drive at address 1 and
an external printer at address 5.
Any clues?
Thanks
**vp