Peter Krefting wrote: > the linked SASI spec also lists [cmd 12] as "standard", not "optional" We should not forget this hard drive is an integrated solution which consists of an CBM DOS IEEE board, a SASI MFM controller board and a hard disk unit. Thus I suppose the communication between the DOS and MFM controller boards didn't need to implement more parts of the spec than absolutely required. Commodore probably didn't sell the IEEE boards separately to other manufacturers to integrate with their SASI hard drives. By the way, I wonder if the units Ruud is working with are the ones that came from me. I had four 90x0 units of which I managed to get two working and two broken ones that I donated for the costs of shipping. I remember Jan wrote to me that even the once working unit stopped working after a while, so likely they all are from the same batch and place which even Ruud himself got to visit. :-D The fact that a former Commodore reseller once got the drives in return from customers could be of two reasons: the drives had failed or the customer had upgraded to e.g. IBM PC equipment. I'm afraid the former cause was more common for returning stuff to your reseller. Best regards -- Anders Carlsson Message was sent through the cbm-hackers mailing listReceived on 2011-01-27 15:00:05
Archive generated by hypermail 2.2.0.