16 Jan
2013
16 Jan
'13
12:14 p.m.
Greetings,
The subject says it all. I recently had a tech replace the batteries in
two Yamaha DPM11 mixers. As expected, all presets were lost, but I was
able to restore them by a direct sysex transmission from one unit to the
other (before that one's battery replacement). Alas, the transmitted
data doesn't "keep", i.e. when the machine is turned off the battery
appears to be draining its charge, because the presets are gone when I
power up again. Grrrr.
Also, simplesysexxer seems to receive and transmit a bulk dump with no
problems, but the units do not respond correctly. The first preset gets
copied, then I receive an error code "cE". I could make good use of the
machine's error code definitions now, but the only service manual I
found available on the net is from a private dealer who wants too much
money for it. I'll try contacting a retired Yamaha tech in Toledo OH,
but does anyone on these lists have an idea what I should do ? Btw, the
units work fine now, they just don't keep their presets.
Any & all assistance greatly appreciated !
Best,
dp
17 Jan
17 Jan
2:34 p.m.
New subject: [LAD] [OT] digital mixer losing its presets after battery replacement
On 01/16/2013 06:14 AM, Dave Phillips wrote:
... simplesysexxer seems to receive and transmit a
bulk dump with no
problems, but the units do not respond correctly. The first preset
gets copied, then I receive an error code "cE". I could make good use
of the machine's error code definitions now...
From the owner's manual: cE indicates a checksum error.
Would that be an error on the part of simplesysexxer or the hardware ?
Best,
dp
3:01 p.m.
New subject: [LAD] [OT] digital mixer losing its presets after battery replacement
On Thu, 17 Jan 2013 14:34:41 +0100, Dave Phillips <dlphillips(a)woh.rr.com>
wrote:
On 01/16/2013 06:14 AM, Dave Phillips wrote:
When I wrote sound managing software for the DX7 the checksum always was
ok, but failed for one sound only. For this special sound I patched the
Assembler code, to not calculate the checksum, but to use a fixed
checksum. It wasn't a mistake in the code regarding to e.g. an overflow,
it was Voodoo. However, old devices, not only the DX7, were able to use
transmitted data with bad checksums. At least for old MIDI devices, it's a
seldom, but known issue.
--
FreeBSD 9.1-RELEASE amd64
... simplesysexxer seems to receive and transmit
a bulk dump with no
problems, but the units do not respond correctly. The first preset gets
copied, then I receive an error code "cE". I could make good use of the
machine's error code definitions now...
From the owner's manual: cE indicates a checksum error.
Would that be an error on the part of simplesysexxer or the hardware ? 
3:10 p.m.
New subject: [LAD] [OT] digital mixer losing its presets after battery replacement
[Dave Phillips]
From the owner's manual: cE indicates a checksum
error.
Would that be an error on the part of simplesysexxer or the hardware ?
I seem to remember some piece of MIDI equipment reporting a checksum
error when I was sending sysex bulks too quickly. After increasing
the interval between blocks everything was fine. (No idea what
device it was, certainly not a Yamaha mixer though.)
Cheers, Tim
3:21 p.m.
New subject: [LAD] [OT] digital mixer losing its presets after battery replacement
On Thu, 17 Jan 2013 15:10:39 +0100, Tim Goetze <tim(a)quitte.de> wrote:
[Dave Phillips]
IIRC for my Yamaha DX7 and the C64 software I've written, it was an issue,
when naming a sound with a special Japanese ASCII sign. AFAIR it was only
the combination of one sound + a special name including this sign, not an
issue when using this sign for other sounds. Voodoo ;). The old (first)
DX7 itself only provided capital letters, numbers and the dot, perhaps a
few additional signs, my sound bank manager enabled usage of other ASCII
signs.
--
FreeBSD 9.1-RELEASE amd64
From the owner's manual: cE indicates a
checksum error.
Would that be an error on the part of simplesysexxer or the hardware ?
I seem to remember some piece of MIDI equipment reporting a checksum
error when I was sending sysex bulks too quickly. After increasing
the interval between blocks everything was fine. (No idea what
device it was, certainly not a Yamaha mixer though.)
20 Jan
20 Jan
12:37 a.m.
New subject: [LAD] [OT] digital mixer losing its presets after battery replacement
On 01/17/2013 09:21 AM, Ralf Mardorf wrote:
On Thu, 17 Jan 2013 15:10:39 +0100, Tim Goetze
<tim(a)quitte.de> wrote:
Hey Ralf, hey Tim,
Thanks for both suggestions. Ralf, you may have the right of it here.
The DMP does have an extended character set that I've used in some patch
titles. Tim, I'll see what I can do to throttle the sysex transmission.
Again, thanks for the suggestions.
Btw, I contacted a retired Yamaha tech who has a service manual for the
unit and is willing to copy it for me. Maybe some help there too.
Hardwarily yours,
dp,
[Dave Phillips]
IIRC for my Yamaha DX7 and the C64 software I've written, it was an
issue, when naming a sound with a special Japanese ASCII sign. AFAIR
it was only the combination of one sound + a special name including
this sign, not an issue when using this sign for other sounds. Voodoo
;). The old (first) DX7 itself only provided capital letters, numbers
and the dot, perhaps a few additional signs, my sound bank manager
enabled usage of other ASCII signs.
From the owner's manual: cE indicates a
checksum error.
Would that be an error on the part of simplesysexxer or the hardware ?
I seem to remember some piece of MIDI equipment reporting a checksum
error when I was sending sysex bulks too quickly. After increasing
the interval between blocks everything was fine. (No idea what
device it was, certainly not a Yamaha mixer though.) 
22 Jan
22 Jan
2:03 a.m.
New subject: GMorgan v0.58 available from Sourceforge
Version 0.58 of GMorgan is available from Sourceforge.
* Reformatted the sequencer panel.
* Sequencer scrolls now.
* Added a folder with a
small program that
converts impro-visor imaginary book
to gmorgan format.
Revised the chord table to accommodate
impro-visor notation.
* A few converted songs are in the
data directory altered for my
preferences.
2:18 a.m.
New subject: GMorgan v0.58 available from Sourceforge
Cool...!
2013/1/21 Robert Vogel <vogel(a)ct.metrocast.net>
Version 0.58 of GMorgan is available from
Sourceforge.
* Reformatted the sequencer panel.
* Sequencer scrolls now.
* Added a folder with a
small program that
converts impro-visor imaginary book
to gmorgan format.
Revised the chord table to accommodate
impro-visor notation.
* A few converted songs are in the
data directory altered for my
preferences.
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http://expurgacao.art.br/
11:47 p.m.
New subject: GMorgan v0.58 available from Sourceforge
My Ubuntu 12.4 runs Gmorgan v0,58 very well, however Fedora does not.
Anyone else tried it with Fedora ?
Bob
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8 comments
5 participants
participants (5)
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Dave Phillips -
Esteban Viveros -
Ralf Mardorf -
Robert Vogel -
Tim Goetze