A4000 + Oktagon + Yamaha CDR 400

Computer:

A4000 Hardital Power Changer 040 at 28Mhz, 2MB chip, 16MB fast. 8088 bridgboard (No laughing, it was free ;-) ), Mitsumi FX002D + Tandem.

Hostadapter:

Oktagon 2008 0MB ram
SoftSCSI_OktagonC9XE9.device (oktagon.device) V6.8

CD writer:

YAMAHA CDR400t 1.0c (12/03/97)

Jumpers:

Termination: on (Jumper off)
Parity: off (Jumper on)
Unit: 3
Block Size: 2048 (Jumper off)

Driver:

MMC V7.8 (this driver is named now CDR_SCSI3_ATAPI)

Comments:

Took a while to get working due to lack of docs, i.e. transport info and nothing else! Thanx Yamaha! This drive is an excellent piece of kit. 646mb Data track at 4x speed in 17mins! No problems encountered. Seems to enjoy any writable CD's up till now, very easy to feed ;-).

CD-ROM drive:

PIONEER CD-ROM DR-U10X 1.07 ( 1996/08)

Jumpers:

Termination: off (Jumper on)
Unit: 2
Block Size: 2048 (Jumper off)

Driver:

PlextorCD V7.4

Comments:

Nice 10x CDROM, works perfectly but doesn't like CD's with sticky labels (low clearance in drive). Reads CDDA.

Hard disk:

Seagate ST3144A 130 MB HD as boot drive.

Comments:

Everything appears to run smoothly until the 2MB buffer in the CDR400 is full. The drive still shows that it is writing but MakeCD shows that the timers and buffers are all still. Nothing further happens. I presume it is a SCSI hang-up. Changing Reselection, Sync, Parity settings have no effect, neither does changing buffer size, chunk size or parallel/sequential writing. Also impossible to Abort without power cycling the CDR400. HELP!

Tips:

At the moment I am hoping that Oliver Kastl can come up with a patch for the oktagon.device, as a lot of people have this particular host adapter it would be nice to see it working properly.

Tested by Glenn Mrosek <Gremlin@I-Memory.dontpanic.sub.org>, +49 571 508316.

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