Sequential circuits samplers

Hi All,

I want to be able to use my P2002 with static voice assignment. It seems that's called "forced 
output mode"?  I have rom version 3.0 and I see that wine country has the latest roms for 
about $24 and that it is needed to use individual outs. I have no problem doing the individual 
out mod myself as it can't be anything more than jacks wired to the individual voices. But, 
what exactly does the final rom do that version 3.0 does not?

I have to ask, since I can burn roms, is the image online somewhere? 

thanks, 
daryl

I don't know offhand what OS my 2002+ has, but it does have 
the individual outputs, so assuming it has the latest 
version, I could pull the chips, read them and post the 
binary file(s). But first I have to assemble my EPROM 
programmer kit, and it'll be a week or two before I get 
around to that (very busy with work blah blah).

I've already promised to read the ROMs from my Wavestation 
A/D and send them to someone called Tom, so you'll be number 
two in the queue. ;)

What do people think of the ethics of "ripping" 20-year-old 
synth firmware & posting/sending it (without charging 
anything, of course)? In this case Wine Country might 
actually have a license to the code, but I suspect that 
other places I've seen don't (e.g. Route 66 Studios selling 
the final JX-10 firmware). Maybe I'll ask this question on AH...

Cheers,

John :^P

djhohum wrote:
> Hi All,
> 
> I want to be able to use my P2002 with static voice
> assignment. It seems that's called "forced output mode"? I
> have rom version 3.0 and I see that wine country has the
> latest roms for about $24 and that it is needed to use
> individual outs. I have no problem doing the individual out
> mod myself as it can't be anything more than jacks wired to
> the individual voices. But, what exactly does the final rom
> do that version 3.0 does not?
 >
> I have to ask, since I can burn roms, is the image online
 > somewhere?
> 
> thanks, 
> daryl

-- 
John Pallister
john@...

--- In prophet2000@yahoogroups.com, John Pallister <john@...> wrote:
>
> I don't know offhand what OS my 2002+ has, but it does have 
> the individual outputs, so assuming it has the latest 
> version, I could pull the chips, read them and post the 
> binary file(s). But first I have to assemble my EPROM 
> programmer kit, and it'll be a week or two before I get 
> around to that (very busy with work blah blah).
> 
> I've already promised to read the ROMs from my Wavestation 
> A/D and send them to someone called Tom, so you'll be number 
> two in the queue. ;)

Great! I appreciate it. Let me know if I can return the favor.

> What do people think of the ethics of "ripping" 20-year-old 
> synth firmware & posting/sending it (without charging 
> anything, of course)? 

I almost don't want to answer that because I'm pretty opinionated on 
the matter. 

> In this case Wine Country might 
> actually have a license to the code, but I suspect that 
> other places I've seen don't (e.g. Route 66 Studios selling 
> the final JX-10 firmware). 

From a more practical perspective, however, he number of people with 
eprom programmers is pretty small so I suspect that unless you're 
selling the chips you aren't really cutting into wine country's 
business by sharing the images. 

tnx,
daryl

djhohum wrote:
>> I've already promised to read the ROMs from my Wavestation 
>> A/D and send them to someone called Tom, so you'll be number 
>> two in the queue. ;)
> 
> Great! I appreciate it. Let me know if I can return the favor.

No problem... I am keen to get these done reasonably soon, 
but obviously the day job has to take priority. Send me an 
email if you haven't heard anything in a week or two.

>> What do people think of the ethics of "ripping" 20-year-old 
>> synth firmware & posting/sending it (without charging 
>> anything, of course)? 
> 
> I almost don't want to answer that because I'm pretty opinionated on 
> the matter. 

You, opinionated? Inconceivable... ;) Feel free to email me 
off-list if you want to get it off your chest.

>> In this case Wine Country might 
>> actually have a license to the code, but I suspect that 
>> other places I've seen don't (e.g. Route 66 Studios selling 
>> the final JX-10 firmware). 
> 
> From a more practical perspective, however, he number of people with 
> eprom programmers is pretty small so I suspect that unless you're 
> selling the chips you aren't really cutting into wine country's 
> business by sharing the images. 

Indeed. It's that whole "necessary" vs. "contingent" thing: 
is it actually OK, or just not really that bad?

Cheers,

John :^P
-- 
John Pallister
john@...

leaving aside the ethics or the practical matter of how you might get
y'rself a version 4 rom, you are right that it is needed for the
individual outs support ("FO" in the dynamic allocation menu).

adding the official separate outs kit was not trivial on my 2002; it
involves cutting track on the main voice card to isolate the voices
from each other (they are passive-mixed onto the main output amps) &
buffer them onto both the separate output jacks & back into the
passive mix arrangement.
you may be able to dispense with this if you know what you're doing &
use (say) switching jack sockets so that an isolated voice
"disappears" from the passive mixer. have you got schemos?

the other thing that appeared in v4 was the crossfade looping. you can
read all about this in my annotated chapter 13 in the files section. :-)

duncan.

Hi Duncan,

--- In prophet2000@yahoogroups.com, "duncan" <ferrograph@...> wrote:
>
> leaving aside the ethics or the practical matter of how you might 
get
> y'rself a version 4 rom, 

Good idea, me thinks :)

>you are right that it is needed for the
> individual outs support ("FO" in the dynamic allocation menu).

Ok, that's what I thought.
 
> adding the official separate outs kit was not trivial on my 2002; 
it
> involves cutting track on the main voice card to isolate the 
voices
> from each other (they are passive-mixed onto the main output amps) 
&
> buffer them onto both the separate output jacks & back into the
> passive mix arrangement.
> you may be able to dispense with this if you know what you're 
doing &
> use (say) switching jack sockets so that an isolated voice
> "disappears" from the passive mixer. have you got schemos?

I have schemos for the 2000 and what you've described would be 
pretty easy (trivial) for me. I used the schemos that I have to 
repair the dead voice on my 2002. 

I don't like cutting traces if I can avoid it. I would do that mod 
by using another socket with a bent out leg. 

> the other thing that appeared in v4 was the crossfade looping. you 
can
> read all about this in my annotated chapter 13 in the files 
section. :-)

Cool, thanks.

daryl

Hi,

Well, it has only taken me a year or so, but I've finally 
ripped my P2002+ firmware for you, all 32kB of it. The chip 
in mine is an Atmel AT27256-25DC1. Unfortunately the sticker 
had come off the little quartz window, so I can't say 
exactly what version it is, but as I said, mine definitely 
has the memory expansion and the multiple outputs, so it 
should do the job for you.

Cheers,

John :^P

djhohum wrote:
> --- In prophet2000@yahoogroups.com, John Pallister <john@...> wrote:
>> I don't know offhand what OS my 2002+ has, but it does have 
>> the individual outputs, so assuming it has the latest 
>> version, I could pull the chips, read them and post the 
>> binary file(s). But first I have to assemble my EPROM 
>> programmer kit, and it'll be a week or two before I get 
>> around to that (very busy with work blah blah).
>>
>> I've already promised to read the ROMs from my Wavestation 
>> A/D and send them to someone called Tom, so you'll be number 
>> two in the queue. ;)
> 
> Great! I appreciate it. Let me know if I can return the favor.
> 
>> What do people think of the ethics of "ripping" 20-year-old 
>> synth firmware & posting/sending it (without charging 
>> anything, of course)? 
> 
> I almost don't want to answer that because I'm pretty opinionated on 
> the matter. 
> 
>> In this case Wine Country might 
>> actually have a license to the code, but I suspect that 
>> other places I've seen don't (e.g. Route 66 Studios selling 
>> the final JX-10 firmware). 
> 
> From a more practical perspective, however, he number of people with 
> eprom programmers is pretty small so I suspect that unless you're 
> selling the chips you aren't really cutting into wine country's 
> business by sharing the images. 
> 
> tnx,
> daryl
> 
> 
> 
>  
> Yahoo! Groups Links
> 
> 
> 

-- 
John Pallister
john@...

.BIN implies a raw, unadorned stream of byte values; no 
headers, checksums or other formatting. The fact that it is 
32768 bytes long means it fits exactly into a 
15-bit-wide/256kbit EPROM chip (via an EPROM programmer).

For more information about EPROMs, see 
http://www.qsl.net/yo5ofh/doc/how_eprom_works.htm

Putting it in a .zip file means that you can test the 
integrity of the file (since the .zip format contains a 
checksum) to make sure there aren't any errors.

Note that I haven't tested this data (i.e. burned it back 
into a chip and tried it in my Prophet 2002+) so I can't 
make any promises that it'll work.

If anyone is brave enough to try this firmware in their 
2002, can they please let us know how it goes... ;)

Cheers,

John :^P

charles midi gfa pascal wrote:
> what exactually is this , i never used a .bin before , how do i utilize 
> such a file?
>  
> charles
> 
>     ----- Original Message -----
>     *From:* M. Toscarelli <mailto:toscarelli@...>
>     *To:* prophet2000@yahoogroups.com <mailto:prophet2000@yahoogroups.com>
>     *Sent:* Monday, September 01, 2008 3:42 PM
>     *Subject:* Re: [prophet2000] Prophet 2002+ firmware
> 
>     this is a great resource for hoarders like me to keep on the back
>     burner, thanks!!!!
>      
>     MIke
> 
>         ----- Original Message -----
>         *From:* John Pallister <mailto:john@...>
>         *To:* prophet2000@yahoogroups.com
>         <mailto:prophet2000@yahoogroups.com>
>         *Sent:* Monday, September 01, 2008 6:50 AM
>         *Subject:* [prophet2000] Prophet 2002+ firmware
> 
>         Hi,
> 
>         Well, it has only taken me a year or so, but I've finally
>         ripped my P2002+ firmware for you, all 32kB of it. The chip
>         in mine is an Atmel AT27256-25DC1. Unfortunately the sticker
>         had come off the little quartz window, so I can't say
>         exactly what version it is, but as I said, mine definitely
>         has the memory expansion and the multiple outputs, so it
>         should do the job for you.
> 
>         Cheers,
> 
>         John :^P
> 
>         djhohum wrote:
>          > --- In prophet2000@yahoogroups.com
>         <mailto:prophet2000%40yahoogroups.com>, John Pallister
>         <john@...> wrote:
>          >> I don't know offhand what OS my 2002+ has, but it does have
>          >> the individual outputs, so assuming it has the latest
>          >> version, I could pull the chips, read them and post the
>          >> binary file(s). But first I have to assemble my EPROM
>          >> programmer kit, and it'll be a week or two before I get
>          >> around to that (very busy with work blah blah).
>          >>
>          >> I've already promised to read the ROMs from my Wavestation
>          >> A/D and send them to someone called Tom, so you'll be number
>          >> two in the queue. ;)
>          >
>          > Great! I appreciate it. Let me know if I can return the favor.
>          >
>          >> What do people think of the ethics of "ripping" 20-year-old
>          >> synth firmware & posting/sending it (without charging
>          >> anything, of course)?
>          >
>          > I almost don't want to answer that because I'm pretty
>         opinionated on
>          > the matter.
>          >
>          >> In this case Wine Country might
>          >> actually have a license to the code, but I suspect that
>          >> other places I've seen don't (e.g. Route 66 Studios selling
>          >> the final JX-10 firmware).
>          >
>          > From a more practical perspective, however, he number of
>         people with
>          > eprom programmers is pretty small so I suspect that unless
>         you're
>          > selling the chips you aren't really cutting into wine country's
>          > business by sharing the images.
>          >
>          > tnx,
>          > daryl
-- 
John Pallister
john@...