electro-music.com   Dedicated to experimental electro-acoustic
and electronic music
 
    Front Page  |  Articles  |  Radio
 |  Media  |  Forum  |  Wiki  |  Links  |  Store
Forum with support of Syndicator RSS
 FAQFAQ   CalendarCalendar   SearchSearch   MemberlistMemberlist   UsergroupsUsergroups   LinksLinks
 RegisterRegister   ProfileProfile   Log in to check your private messagesLog in to check your private messages   Log inLog in  Chat RoomChat Room 
 Forum index » DIY Hardware and Software » Developers' Corner
Sony DPS-M7 and DPS-F7: same hardware, different OS
Post new topic   Reply to topic Moderators: DrJustice
Page 1 of 1 [7 Posts]
View unread posts
View new posts in the last week
Mark the topic unread :: View previous topic :: View next topic
Author Message
SerialSinger



Joined: Oct 25, 2013
Posts: 6
Location: Italy

PostPosted: Fri Jul 01, 2016 9:24 am    Post subject: Sony DPS-M7 and DPS-F7: same hardware, different OS
Subject description: A different OS EPROM makes two different devices!
Reply with quote  Mark this post and the followings unread

Hello all!

I own a Sony DPS-M7 unit and recently I was searching the whole web for any useful documents and various stuff related to it; I found no service manual for this model but just a "minimal" two-page service manual for the DPS-F7, and according to its contents it's clear that the only real difference between these two units (except for the front panel) is the EPROM chip containing their operating system: same memory size, different firmware.

I don't have an F7 (yet...) to verify this, but I would surely make a test if I could have a copy of the F7 EPROM: I would burn a test chip for a temporary replacement of my M7 one, and... reboot it and see.

I already have a binary backup of my M7 to swap, for offering the same chance to anyone who has an F7.

I can imagine/project a dual EPROM switching board to put directly into the socket of the original chip, with a switcher for choosing which OS to boot; it will be like having a "Jekyll & Hyde" audio processor! Obviously I will share any info about it, in GPL style.

Note that other units of the same family (DPS-D7 and DPS-R7) cannot be transformed in this way: they have more hardware differences than the other two.

To summarize: is there anybody who can give me a binary copy of the DPS-F7 OS EPROM of any version/release? Smile

Thanks for your attention!
SerialSinger
Back to top
View user's profile Send private message
SerialSinger



Joined: Oct 25, 2013
Posts: 6
Location: Italy

PostPosted: Sun Jul 10, 2016 5:04 am    Post subject: Reply with quote  Mark this post and the followings unread

Bump! Anyone?

Is there any Sony DPS* user in general here around? I have an M7 and a D7 bought for nuts and I'm very happy about these tools! I may go on with the collection if some other bargain will appear...
Back to top
View user's profile Send private message
MusicMan11712



Joined: Aug 08, 2009
Posts: 1003
Location: Out scouting . . .

PostPosted: Sun Jul 10, 2016 6:55 am    Post subject: Reply with quote  Mark this post and the followings unread

A few days ago or so, I looked on the internet to see if I could find any manuals or user websites related to these devices. I didn't find anything even remotely useful, so I didn't reply. Actually, I think I found a service manual for a remote for one of these or maybe a related device.
Steve
Back to top
View user's profile Send private message
SerialSinger



Joined: Oct 25, 2013
Posts: 6
Location: Italy

PostPosted: Sun Jul 10, 2016 7:17 am    Post subject: Reply with quote  Mark this post and the followings unread

MusicMan11712 wrote:
A few days ago or so, I looked on the internet to see if I could find any manuals or user websites related to these devices. I didn't find anything even remotely useful, so I didn't reply. Actually, I think I found a service manual for a remote for one of these or maybe a related device.
Steve


Yes, that remote controller works with all the DPS units.

I have already found all the PDF manuals for the DPS family that are/were available for free somewhere on the web: all the user manuals and a few service manuals. Some others are available under payment.

Now I don't need any other document or manual, but just the EPROM binary image file of a DPS-F7 unit. I may swap it with the binary file from my own DPS-M7.

I could also wait for a F7 for sale, but not at a "billionaire collector" price...
Back to top
View user's profile Send private message
Don Solaris



Joined: Oct 23, 2007
Posts: 14
Location: Jupiter8

PostPosted: Sun Dec 10, 2017 6:42 am    Post subject: Reply with quote  Mark this post and the followings unread

I got reverb R7 and can read it's EPROM content if anyone is interested in swap. I'm interested in M7 BIN file.

One important thing that i should point out: i've burned D7 ROMs, installed them into R7 and while it booted, the effects just didn't work right. They were all working in single channel.

Still interested in trying M7 ROM.
Back to top
View user's profile Send private message
SerialSinger



Joined: Oct 25, 2013
Posts: 6
Location: Italy

PostPosted: Sun Dec 10, 2017 7:07 am    Post subject: Reply with quote  Mark this post and the followings unread

Don Solaris wrote:
I got reverb R7 and can read it's EPROM content if anyone is interested in swap. I'm interested in M7 BIN file.

One important thing that i should point out: i've burned D7 ROMs, installed them into R7 and while it booted, the effects just didn't work right. They were all working in single channel.

Still interested in trying M7 ROM.


Hello Don! All the firmware binaries for the DPS-_7 series (and many many more!) are now available at this precious online archive:

http://www.dbwbp.com/forums.html/9-misc/37-synth-eprom-dumps

A few months ago I finally managed to create a switching M7+F7 unit. The whole story is (ehm... sorry for that) on another forum where I had more frequent replies... Smile

Your note about the D7 ROM on an R7 is interesting: I haven't collected yet enough information about doing the same trick for R7+D7, because I'm not sure they share exactly the same circuits, as is definitely the case for F7 and M7.

I believe that an M7 (or F7) EPROM won't work correctly on an R7, but I'd be glad to be proved wrong...

Let us know how it goes! Wink
Back to top
View user's profile Send private message
Don Solaris



Joined: Oct 23, 2007
Posts: 14
Location: Jupiter8

PostPosted: Sun Dec 10, 2017 7:09 am    Post subject: Reply with quote  Mark this post and the followings unread

Thank you! Yeah found your other topic. See you there. Wink
Back to top
View user's profile Send private message
Display posts from previous:   
Post new topic   Reply to topic Moderators: DrJustice
Page 1 of 1 [7 Posts]
View unread posts
View new posts in the last week
Mark the topic unread :: View previous topic :: View next topic
 Forum index » DIY Hardware and Software » Developers' Corner
Jump to:  

You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum
You cannot attach files in this forum
You can download files in this forum
e-m mkii

Please support our site. If you click through and buy from
our affiliate partners, we earn a small commission.


Forum with support of Syndicator RSS
Powered by phpBB © 2001, 2005 phpBB Group
Copyright © 2003 through 2009 by electro-music.com - Conditions Of Use