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Standalone ESP2 development board? [message #108112] Fri, 14 February 2014 10:33 Go to next message
Doug Wellington is currently offline  Doug Wellington   UNITED STATES
Messages: 251
Registered: June 2005
Location: Tucson, AZ, USA
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I've been slowly reverse engineering the EDS-1000 card and I finally pulled the cover off of my DP/Pro to start figuring it out as well. (I have one of the ones with the digital I/O. Cool )

So, I'm starting to think that I should create a new PCB for the ESP2 so that I can play around with effects algorithms. If I can get things to work directly on the ESP2, then I think I'll have a better chance of figuring out the entire EDS card.

If I were to make a board, what form factor should I use though? Should I make a standalone unit like the Freescale Symphony Soundbite that has audio inputs and outputs on one PCB or should I create some kind of daughter card that would plug into something like a Beaglebone Black, Raspberry Pi, or something similar?

Anybody else twisted enough to want to work with me on something like this?


Re: Standalone ESP2 development board? [message #108113 is a reply to message #108112] Fri, 14 February 2014 11:04 Go to previous messageGo to next message
kerryg is currently offline  kerryg   CANADA
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Registered: February 2009
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Hmmm... if there's a possibility to do modular AD/DA so we can build our I/O up to the max a bit at a time, I'd find that interesting. I'm thinking of a small form-factor I/O like the RME daughter cards.

"... being bitter is like swallowing poison and waiting for the other guy to die..." - anon
Re: Standalone ESP2 development board? [message #108114 is a reply to message #108113] Fri, 14 February 2014 12:48 Go to previous messageGo to next message
Doug Wellington is currently offline  Doug Wellington   UNITED STATES
Messages: 251
Registered: June 2005
Location: Tucson, AZ, USA
Senior Member
I haven't actually worked with any RME stuff as of yet.

If I get a chance this weekend, I'll look at the various bus specifications to see if I can leverage one of the designs from the Papilio, the Mojo, or the BBB. The Ensoniq stuff uses the I2S protocol, but most of the recent stuff I've used is SPI-based. Worst case, I'll find some kind of converter or use a CPLD or small FPGA to make one...


Re: Standalone ESP2 development board? [message #108115 is a reply to message #108114] Fri, 14 February 2014 13:04 Go to previous messageGo to next message
kerryg is currently offline  kerryg   CANADA
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Registered: February 2009
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RME stuff is the bomb; it's some of the best gear you can get before jumping up to the Metric Halo/Apogee price points. I've had three of their products and they've all delivered exceptional performance (and their drivers kick ass).

"... being bitter is like swallowing poison and waiting for the other guy to die..." - anon
Re: Standalone ESP2 development board? [message #108116 is a reply to message #108115] Fri, 14 February 2014 14:09 Go to previous messageGo to next message
Doug Wellington is currently offline  Doug Wellington   UNITED STATES
Messages: 251
Registered: June 2005
Location: Tucson, AZ, USA
Senior Member
Very cool. I first heard of RME because they were Linux friendly. I was about to try the MADI stuff, but then the aliens took my daughter's brain and pretty much all non-parent and non-dayjob activities ceased. We're still trying to pay the ransom to get the brain back. She's only 22, so there's hope that might happen in the next year or two...

Re: Standalone ESP2 development board? [message #108117 is a reply to message #108116] Thu, 20 February 2014 22:24 Go to previous message
excelav is currently offline  excelav   UNITED STATES
Messages: 2130
Registered: July 2005
Location: Metro Detroit
Senior Member
Hey Doug! I have no idea what I am talking about, but I will point something out anyways. I was thinking about buying a TV box, and I stumbled across the newer Quad Android TV boxes on Amazon. They are basically the guts of a tablet/net PC with more optional connectors and no screen. There are quad processor versions for under $110.00 and they are coming down in price. I'm probably off on the wrong track, but I'm thinking maybe you could hack the right one of these and get more power. I think they have quad 1.8 and 2.0 Ghz versions with more memory that might give you the power to do even more???

Some of these have SP/DIF, USB, more memory, on board graphic processors etc. I also saw models with wireless keyboards that had a track pad and joy stick. You might want to do a search for quad core android TV box. I'm not sure what guts or DSPs they have inside of them... I know you are talking about DSP, so this may be the wrong track, but I thought I'd mention it.

James
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