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mm1update0496.lzh
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1996-04-18
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3KB
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94 lines
MM/1 & MM/1a Driver Update
April 17, 1996
It's long overdue, but it's finally here! RBF and SCF driver updates
for the MM/1 and MM/1a computers! Thanks go to Carl Kreider (who did
a great deal of the work on these drivers) for letting me get a chance
to fix a few bugs and for his permission to release these to other MM/1
users.
This archive contains the following drivers:
MODS070 (for MM/1 68070 systems):
rb37c65 - floppy driver ed #7
sc68070 - 68070 serial driver ed #15
sc68681 - 68681 serial driver ed #40
sc68901 - 68901 serial driver ed #31
scsi_mm1d - Low-level SCSI driver ed #28
t0 - t0 descriptor for sc68070
t1 - t1 descriptor for sc68901
t2 - t2 descriptor for sc68901
t3 - t3 descriptor for sc68681
t4 - t4 descriptor for sc68681
term - term descriptor (same as t0)
MODS340 (for MM/1a 68340 systems):
rb37c65 - floppy driver ed #7
sc68340 - 68340 serial driver ed #37
sc68681 - 68681 serial driver ed #40
sc68901 - 68901 serial driver ed #31
scsi_mm1d - Low-level SCSI driver ed #28
t0 - t0 descriptor for sc68340
t1 - t1 descriptor for sc68901
t2 - t2 descriptor for sc68901
t3 - t3 descriptor for sc68681
t4 - t4 descriptor for sc68681
t5 - t5 descriptor for sc68340
term - term descriptor (same as t0)
All serial descriptors are 9600, 8-N-1, xon/xoff, no hardware handshaking.
To turn on hardware handshaking, you need to set the high bit of the
type byte in the descriptor. Using xmode like this:
xmode /t3 type=80
...will turn on hardware handshaking for /t3. NOTE: the device and its
driver must support hardware handshaking in order for it to work.
What's Changed...
rb37c65, sc68070 and sc68901 haven't been really touched, other than
reassembled.
sc68681
=======
This driver has gone through some major changes. Most notably, /t3 and
/t4 no longer get eachother's carrier detect confused. This will fix
problems of having two modems using CD on these ports. Other minor
bugs have been fixed.
Also, sc68681 deals with the problem of mismatched baud rates better.
This is necessary due to some baud rate combinations on /t3 and /t4 being
illegal (such as 19200 and 38400). An attempt to iniz either /t3 or /t4
at 19200 while the other is at 38400 (or vice versa) will result in an
error #203.
sc68340
=======
For MM/1a users, sc68340 had some problems where inizing /t0 and /t5
would mess up baud rates. These are now fixed. I've been using /t0 and
/t5 interchangably and simultaneously with no problems.
Note that I have included a term descriptor which is the same as the
corresponding t0 descriptor for each system. This is in case you want
to boot your MM/1 or MM/1a to the serial port instead of into
K-Windows.
scsi_mm1a/scsi_mm1d
===================
Both scsi_mm1a and scsi_mm1d have been recompiled with Ultra C 1.3,
resulting in smaller executables. I've been using scsi_mm1a ed #28
with NO problems.
Please let me know if you have any problems with these drivers.
Boisy G. Pitre
boisy@os9er.waukee.ia.us