Ethan Dicks wrote: > Nice. > I mainly wanted one so I can see how CBM planned HDD storage (I have noticed an addition ',1' on the end of error strings, but maybe that's just BASIC 4.0's ?ds$ doing that.) If there is anything of interest in the drive ROM/functionality that can be added to uIEC, I'd like to find out. > Given that you don't know about the state of the Tandon drive, I'd > grab an ST225 or ST251 and drop that in there (checking the drive > Anyone have one I can borrow :-) I don't have (never did) much in the way of vintage HDDs > Be sure to check the state of the J13/J14 jumper - it goes in D9060 > mode for a 4-head drive and D9090 mode for a 6-head drive (or you can > just leave it at 4 heads for either drive). One unit I "repaired" had > a 4-head drive but was set for 6 heads. As expected, the low-level > format was unsuccessful until I matched up the board setting with the > capabilities of the hardware. > I'll check that, but I would think the drive would give 00,OK,00,00 for commands like reading the drive channel. I always get a 74. > You should also check the ROMs on your boards against the versions > dumped on zimmers.net - > http://www.zimmers.net/anonftp/pub/cbm/firmware/drives/old/9090/index.html > I will check. > I have an old CBM document that mentions that the newer version of the > ROMs takes substantially longer than the older version (like 2 hrs vs > 45 minutes), so I thought I should mention it if you get impatient. > Yeah, I was reading the manual on Zimmers last night and noticed the 2 hours 45 minute formatting timeframe :-) If I had to guess, I'd wager the SASI board is bad, as it was getting 12V but not 5V for a number of power cycles. I have not looked at the schematic in depth, but I would assume they did not bring 12V to the board for nothing, and operating with only half a supply might not be good for it. Jim Message was sent through the cbm-hackers mailing listReceived on 2009-11-30 19:00:04
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