Custom-built multi-bank Roland M-256/M-512 memory cards

The place for parts & services: Modifications, Spare Parts and Repair Services, Sample Packs, Accessories.
Forum rules
This forum follows the same rules outlined in Gear For Sale Rules and Guidelines

Moderators have the right to edit your posts to keep them within the framework of these rules.
Post Reply
aladan
Newbie
Newbie
Posts: 6
Joined: Thu Feb 12, 2015 4:52 am

Re: Custom-built multi-bank Roland M-256/M-512 memory cards

Post by aladan » Fri Feb 27, 2015 1:21 am

ʝɵʝɵ wrote:aladan: I don't think the U-220 qualifies here. It has two ROM card slots for samples, I confirmed that the card fits these slots but of course it will be unreadable, and cannot be written to.
You're quite correct. I was working from the list posted previously, and while the U-20 has RAM card slots, the rackmount versions (U-220, and the related U-110) do not. I think this is a case of an incorrect assumption by someone, somewhere on the internet, that has been replicated.

On the plus side, this has reminded me that I think I have a U-20 hidden away somewhere as well... I'll have to go dig around in the store-room!

Cheers,
A.

Anarkand
Newbie
Newbie
Posts: 26
Joined: Mon Apr 30, 2012 11:22 pm

Re: Custom-built multi-bank Roland M-256/M-512 memory cards

Post by Anarkand » Sun Mar 01, 2015 9:46 am

Well then i guess I need two of those cards :)

All the best.

Un Linked
Newbie
Newbie
Posts: 2
Joined: Mon Mar 02, 2015 11:20 am

Re: Custom-built multi-bank Roland M-256/M-512 memory cards

Post by Un Linked » Mon Mar 02, 2015 11:29 am

Hi guys anyone know someting news about this cards or were i can contact jojo for buying ?

dojoe
Junior Member
Junior Member
Posts: 107
Joined: Wed Sep 10, 2014 3:26 pm
Location: Germany

Re: Custom-built multi-bank Roland M-256/M-512 memory cards

Post by dojoe » Mon Mar 02, 2015 11:53 am

Un Linked wrote:Hi guys anyone know someting news about this cards or were i can contact jojo for buying ?
You're no fan of actually _reading_ the thread, are you? ;) It's not that long yet, and you'll see that there's plenty of recent updates in here.

Anarkand
Newbie
Newbie
Posts: 26
Joined: Mon Apr 30, 2012 11:22 pm

Re: Custom-built multi-bank Roland M-256/M-512 memory cards

Post by Anarkand » Mon Mar 09, 2015 10:32 pm

So how is everything progressing :D - :ugeek:

ʝɵʝɵ
Junior Member
Junior Member
Posts: 139
Joined: Sat Jun 11, 2011 11:50 am
Gear: Roland D-50, U-220, XV-5080, Yamaha AN1x, CS1x, CS6R, TG77, Korg X5DR, Kawai K4, Kurzweil K2500
Location: Germany
Contact:

Re: Custom-built multi-bank Roland M-256/M-512 memory cards

Post by ʝɵʝɵ » Mon Mar 09, 2015 11:46 pm

Oh come on, you have to be a bit more patient. We are already posting as many relevant news as we can here. Do not fear, you will get a card once we got that far, but it won't happen that quickly. Dojoe already explained when the beta batch will arrive at the earliest.

Anarkand
Newbie
Newbie
Posts: 26
Joined: Mon Apr 30, 2012 11:22 pm

Re: Custom-built multi-bank Roland M-256/M-512 memory cards

Post by Anarkand » Tue Mar 10, 2015 6:44 am

Just giving some love and attention to your project <3 I'm patient like a dog in front of a hotdogshop

marcand
Newbie
Newbie
Posts: 1
Joined: Fri Mar 20, 2015 7:10 pm

Re: Custom-built multi-bank Roland M-256/M-512 memory cards

Post by marcand » Fri Mar 20, 2015 7:27 pm

put me on the list for one card. great project. thanks from Montreal

User avatar
Percivale
Junior Member
Junior Member
Posts: 227
Joined: Mon Sep 09, 2013 1:56 am
Gear: Blofeld, Juno-106, AN1X, MB-6582/SEQ V4, etc
Location: SG Synthesizers Group
Contact:

Re: Custom-built multi-bank Roland M-256/M-512 memory cards

Post by Percivale » Sun Mar 29, 2015 1:21 am

Watching this space!

Anarkand
Newbie
Newbie
Posts: 26
Joined: Mon Apr 30, 2012 11:22 pm

Re: Custom-built multi-bank Roland M-256/M-512 memory cards

Post by Anarkand » Mon Mar 30, 2015 10:23 am

Just wondering about the R-8 and the card. Have anyone tried if it works? The r-8 uses two cards, one for storing our songs, patterns and the like and another one is a rom card with the instruments. Could the card work as either cards, any knowledge testing on this?

All the best

dojoe
Junior Member
Junior Member
Posts: 107
Joined: Wed Sep 10, 2014 3:26 pm
Location: Germany

Re: Custom-built multi-bank Roland M-256/M-512 memory cards

Post by dojoe » Mon Mar 30, 2015 1:52 pm

Anarkand wrote:Just wondering about the R-8 and the card. Have anyone tried if it works? The r-8 uses two cards, one for storing our songs, patterns and the like and another one is a rom card with the instruments. Could the card work as either cards, any knowledge testing on this?
No idea -- my wild guess would be that the ROM cards have a similar, if not the same, interface as the RAM cards. But why bother? There are no ROM dumps that I'm aware of anyway.

Frome a technical point of view, the problem will be capacity. I'm pretty sure there's more than 64K of ROM data on the cards, and the MRAM card is wired to emulate 16x32KB or 8x64KB. 1x512KB is not supported, and I don't plan on changing that.

(Oh, and for a quick status non-update: Still waiting for those PCBs to arrive, and pretty swamped with other projects, so no time anyway. Bear with me ;) )

Anarkand
Newbie
Newbie
Posts: 26
Joined: Mon Apr 30, 2012 11:22 pm

Re: Custom-built multi-bank Roland M-256/M-512 memory cards

Post by Anarkand » Tue Mar 31, 2015 8:09 am

Im lost in technical lingo :D - so the pcb cards are not functional as soundcards or is it the other way around? Or both? :?: :geek:

Good to hear of the progress.

ʝɵʝɵ
Junior Member
Junior Member
Posts: 139
Joined: Sat Jun 11, 2011 11:50 am
Gear: Roland D-50, U-220, XV-5080, Yamaha AN1x, CS1x, CS6R, TG77, Korg X5DR, Kawai K4, Kurzweil K2500
Location: Germany
Contact:

Re: Custom-built multi-bank Roland M-256/M-512 memory cards

Post by ʝɵʝɵ » Tue Mar 31, 2015 8:13 am

The thing is that
1) PCM cards are usually much bigger than the cards that are used for patch data.
2) PCM cards were never meant to be custom-made by people, so first off their data structure is (most likely) not known, making it impossible to create new cards. The only way to generate a custom PCM card would be to somehow read out an existing PCM card using a custom-made card reader and then write it back to a new card. But as dojoe said, even this won't work with the card design because the card exposes 64KB of memory to the synth, which is not an awful lot for samples.

Anarkand
Newbie
Newbie
Posts: 26
Joined: Mon Apr 30, 2012 11:22 pm

Re: Custom-built multi-bank Roland M-256/M-512 memory cards

Post by Anarkand » Tue Mar 31, 2015 11:27 am

So it wont work as storage or instrument card srry for being a brick...?

ʝɵʝɵ
Junior Member
Junior Member
Posts: 139
Joined: Sat Jun 11, 2011 11:50 am
Gear: Roland D-50, U-220, XV-5080, Yamaha AN1x, CS1x, CS6R, TG77, Korg X5DR, Kawai K4, Kurzweil K2500
Location: Germany
Contact:

Re: Custom-built multi-bank Roland M-256/M-512 memory cards

Post by ʝɵʝɵ » Tue Mar 31, 2015 12:48 pm

I don't own an R8 so I don't know for sure how cards are being used with it, but simply put: If the device manual says that you can use M128, M256 or M512 cards for storing system data, then you can use our custom RAM card for that. You can not use a RAM card for custom sounds, though. Those cards are referred to by Roland as "sound cards", and RAM cards are not compatible with sound cards. It's the same as with the Roland U-220, it only takes sound cards, not RAM cards.

Post Reply