I've really no idea. �The fact that you can burn custom chips from the E5000 series sampler is a good sign though. �I imagine there must be a unique rom id, a read location within the chip and an offset into that initial location.
The actual OS seems to be done via XILINX FPGA's, using relatively old chips. �I'm going to look into getting a
spare XL7 to work with. �Perhaps getting an E5000 and a burnable rom to check as well.�
Most of the newer sampling oscilloscopes can pull the data bits, mine can do two channels at a time. �
Key questions are:
- What voltage are the sample roms running at
- What's the clock rate of the chips
- How many layers on a sample rom PCB
- Documenting traces
- Are they using a known bus protocol, if so what?
- What voltage is the mainboard
- Where could we siphon electricity to run the SDCard
I don't think an SDCard has fast enough transfer rates, we would probably need to load it into local ram and emulate the ROM. �Luckily ram is cheap now, and the atmel chips should clock high enough to deal with the transfer rates.
On Friday, July 11, 2014 12:37 PM, "George G pluto_ro@... [xl7]" wrote:
�
Sent from my iPhone
I can help, I have a very well prepared team for electronics,�we just need a plan.
Where I am a little bit sceptic is the data formats read and producing.
The EMU route is out of the question for sure...
Sent from my iPhone
�Actually this has been on my list of things to do for some time. �I want to reverse engineer the sound rom electrical and data formats and then create a custom 'card' that would dynamically load a soundset in from SD cards.I'm partially equipped for this, but I'd be thrilled if anyone else out there could help.I don't think we could get EMU to open source the OS, or perhaps we could? �I don't see Creative actually doing anything with the Synth Engines any time soon, and there are a lot of things that could be improved for current owners...Andre
�Doesn't seem like it.
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