/pub/cbm/firmware/drives/old/9090/

The Commodore D9060 and D9090 can use the same firmware. The difference between these units is that the jumper J14 on the DOS board is open in the D9060, and closed in the D9090 to select a 4-head vs. 6-head drive. The jumper J13 seems to be unused.
According to Wolfgang Günther, the EPROM type may be 2564 or 2764, depending on the board version ("Assy No. 300012-001, Rev.B" or "Assy No. 300012-002, Rev.A"). This is the case of 300516/300517 rev.C.

Subdirectories

schematics@
Schematic diagrams

Files

300515-revA.bin 2009-08-18 2048
D9090 ROM image from 2716 at location 4C from D9090 s/n 2041
Uploaded by Ethan Dicks <erd@iname.com>. An EPROM of equal contents was in Bo Zimmerman's 9090. The chip was labelled "300515 Rev A".
300515-revB.bin 2009-08-18 2048
D9060 ROM image from 2716 at location 4C from D9060 s/n 1533
Uploaded by Ethan Dicks <erd@iname.com>. The chip was labelled "300515 Rev B". 2716 EPROMs with the same contents were in the D9060 and D9090 (s/n 3677) drives of Wolfgang Günther <woll@wolltronic.de>. Those chips were labelled "300515-001" or "300515 Rev B".
300516-revB.bin 2009-08-18 8192
A 2564 EPROM at location 7C. This firmware was encountered both in Bo Zimmerman's D9090 and in Ethan Dicks' D9060 (s/n 1470).
300516-revC.bin 2009-08-18 8192
A 2564/2764 EPROM at location 7C, labelled "300516 Rev. C". This firmware was encountered in Wolfgang Günther's all drives.
300517-revA.bin 2009-08-18 8192
D9090 ROM image from an EPROM of Bo Zimmerman's 9090.
300517-revB.bin 2009-08-18 8192
D9060 ROM image from 2564 at location 7D from D9060 s/n 1470 Uploaded by Ethan Dicks <erd@iname.com>.
300517-revC.bin 2009-08-18 8192
A 2564/2764 EPROM at location 7D, labelled "300517 Rev. C". This firmware was encountered in Wolfgang Günther's all drives.
44-1.BIN 2017-07-14 2048
Firmware @5B on 90x0 controller board. An N82s137N.
44-2.BIN 2017-07-14 2048
Firmware @6B on 90x0 controller board. An N82s137N.
44-3.BIN 2017-07-14 2048
Firmware @7B on 90x0 controller board. An N82s137N.
44-4.BIN 2017-07-14 2048
Firmware @8B on 90x0 controller board. An N82s137N.
44-5.BIN 2017-07-14 2048
Firmware @9B on 90x0 controller board. An N82s137N.
harddrives.zip 2009-08-18 66582
Source Code
versions.txt 2009-08-18 733
William Levak's note on the 9060/9090 ROM versions.

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