From codemechanic Sent Wed, Nov 7th 2018, 00:33
From codemechanic Sent Wed, Nov 7th 2018, 00:33
Hi Brian, I own an Xpander which I believe has v1.2 Main board ROMs and v1.4 Voice board ROMs, but unfortunately I can't confirm that as I'm out of the country at the moment. In searching around it seems like there's more information out there on the Xpander than there is on the Matrix 12. I couldn't track down Matrix 12 main board ROMs anywhere. The only way I can come close to confirming the latest revision numbers for the Matrix 12 ROMs was via a page on sequencer.de: https://www.sequencer.de/blog/oberheim-xpander-oberheim-matrix-12/2547 "Softwareversionen/most recent software version: Processor: 1.2 (Matrix12: 1.1) Voice version: 1.4 (Matrix12: 1.6)" From the information found there it sounds like the latest revs are 1.2/1.4 for the Xpander, and 1.1/1.6 for the Matrix 12. Further information on the Xpander revisions comes via the software update operational instructions released 4/5/85 (http://www.synthzone.com/midi/oberheim/obxp/xpandros.zip): "If the main processor version reads 1.2, the Xpander already contains the most recent main processor version. The voice processor version will be displayed as 1.0, 1.1, 1.2, or 1.4. Again, if the version displayed is below 1.4, the software should be updated." I was also able to find documentation regarding the Midi specification, software updates etc. for the Xpander that I can send your way if you're interested. There sure is some interesting information found in the Xpansions newsletter archives: http://www.synthzone.com/midi/oberheim/obxp/xpansion.zip -Ben On Wed, Nov 7, 2018 at 4:13 AM Brian Willoughby <xxxxxx@xxxxxxxxxxxx.xxx> w= rote: > > Here are some more details: > > The Matrix-12 Processor Board has five 8KB ROMs > The Xpander Processor Board has four 8KB ROMs > Voice Boards have two 8KB ROMs, and appear to be universal for Xpander & = Matrix-12 (not confirmed). > > I have an incomplete set of Matrix-12 Processor Board v1.2 ROMs, (0, 1, 4= ), and I need the two missing ROMs (2, 3). > I am still looking for a complete set of M12 PB v1.1 ROMs, but I might ju= st buy a ROM reader and pull the chips from my Matrix-12. > > My Matrix-12 has v1.6 on the Voice Boards. > > > Meanwhile, I recall a resource that listed the latest ROM versions for bo= th Xpander and Matrix-12, for both Main and Voice firmware. Can anyone poin= t me to that? I have a friend who is interested in upgrading his Xpander to= the latest, if we can find out what the latest is. I=E2=80=99ll probably u= pdate my Matrix-12, too, since Main PB v1.1 seems to be old. > > I have a complete set of Xpander Processor Board v1.2 ROMs > I have a complete set of Voice Board v1.4 ROMs > I have a complete set of Voice Board v1.6 ROMs > > Brian Willoughby > > > On Nov 4, 2018, at 5:56 PM, Brian Willoughby <xxxxxx@xxxxxxxxxxxx.xxx> wr= ote: > > I have several copies of the Xpander ROM files, and at least one of the= m is valid. > > > > I=E2=80=99m looking for Matrix-12 ROM files. At the very least, I would= like the Processor Board ROM data. It would be nice to have the Voice Boar= d ROM data as well. > > > > I=E2=80=99m working on a patch librarian for macOS, and need the ROM da= ta to scan for undocumented MIDI System Exclusive details. > > Brian Willoughby > Sound Consulting > --=20 benjamin allen xxxxxxxxxxxx@xxxxx.xxx 415.624.9111 http://www.codemechanic.com