SCSI SD Card reader [Large picture warning]


slaeshjag

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As soon as Axel's in stockholm again, we'll finnish up for the next prototype and order that stuff. Not sure when that is, but hopefully soon. I'll probably start writing on more optimized code to bring the speed up, maybe within the next few days.
 

jasonjanssen

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This is a wonderful project you have come up with. I have reverse-engineered my own cf readers for my Ensoniq units but the parts are beginning to be cost-prohibitive. This would be a creative and effective solution. From what I gather, this could be utilized as a stand-alone device or, if paired with a scsi-pin adapter, could be utilized in an existing multi-scsi device setup. My only bit of "advice" would be to keep it simple. The simplicity is what makes this project exciting. I'm looking forward to seeing your progress.
 

jasonjanssen

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Going to correct myself briefly... Your unit would work as long as it would act as the "termination" at the end of the chain. This would go a long way in bringing a multitude of old scsi-based units "back from the dead". It would make sharing libraries and sounds very easy via disk images as well. Once again, impressive work.
 
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slaeshjag

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Yes, the plan is to have built in termination resistors.

I have also drawn up an adapter board, might need some tweaks though.

scsi_adapter.png
 

ross3117

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Just discovered this thread/project.


I'm VERY interested in this.


I have 2 Korg Triton Rack samplers and an EMU E5000 Ultra, all with 25 pin SCSI interfaces.


Please let me know if/when this project is available and whether it will work with my gear (or if I can help test in any way).


Thanks!


Truly awesome project. KUDOS for the passion and progress of bridging the old with the new!!!!
 

slaeshjag

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It is not something we will do for a first model. Though we will consider supplying an adapter that enables it to be used internally.
 

d2a

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just to chime in with a 'me too' - specifically i'm looking to replace a 200MB 50pin SCSI HD which is installed inside my Yamaha SU700 sampler, so an adapter board would be very useful. Presumably this board uses very little current compared to an HD? The power supply within this sampler struggles to deliver high current...

Can't wait to give this a whirl!
 
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slaeshjag

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The reader itself uses almost nothing, maybe 20 mA during read/write. The terminator on the other hand will easily eat a couple hundreds of mA.
 

d2a

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sure - but not the 900-1500mA the HD draws. plus nowhere near the heat and zero noise - ideal
 

slaeshjag

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Using internally? Not really. Price-wise this will be cheaper, but both are using simlar technology. Since SCSI2SD popped up during the slow development of this board, we've decided to stick to the DB25 dongle design to differentiate us.
 

Bjarne

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Apr 18, 2014
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I'd prefer this solution over scsi2sd as this is cheaper and a more perfect fit for plugging into my ASR-10. Also, it's being developed in my hometown Stockholm :)


Cheers
 

slaeshjag

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It has not stalled. A new PCB revision was ordered a week ago, and I got the solderpaste stencil for it a day or so ago. Will post a more in-depth update when the new PCBs are here and we got one soldered up.
 

jasonjanssen

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That is wonderful news. I was afraid you had hit a wall. I have built some of my own scsi related items for old hardware but finding the correct scsi parts these days is cost-prohibitive and sometimes feels like the search for the holy grail. Your work on this is greatly appreciated.
 

Bjarne

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Any chance of buying this, or a preproduction unit, any time soon?


Cheers
 
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