Ideas for daughter cards?

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Ideas for daughter cards?

Postby aolofsson » Fri Feb 15, 2013 4:33 am

What kind of daughter/expansion cards would you like to see for the Parallella?

Here are a few that have come up in discussions in the past.

-large breakout board
-samtec connector single connector breakout board
-samtec connector loopback board
-data acquisition board
-camera board
-sdr board
-audio
-secondary GigE port board
-sata board (PATA through FPGA logic, PEC_FPGA)
-adapter board to hook up to BeagleBone some of the capes? Feasible?

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Re: Ideas for daughter cards?

Postby anlumo » Fri Feb 15, 2013 5:22 am

  • USB 3
  • Bluetooth 4.0
  • PCIe/Thunderbolt
  • secondary SD card slot (or Compact Flash for better performance?)
  • An external RAM module (so you can swap out data temporarily)

I guess the breakout boards would already expose the I2C bus?
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Re: Ideas for daughter cards?

Postby tschaboo » Fri Feb 15, 2013 6:01 am

  • LCD/OLED + touchscreen
    and/or
  • simpler IO card with 8x2 char display + LEDs + pushbuttons + buzzer
  • level shifter board that gives 3.3V and 5V GPIO
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Re: Ideas for daughter cards?

Postby Folknology » Fri Feb 15, 2013 10:35 am

I am already working on a camera board (using camera link) and I also plan to get a template made for Eagle to make it easier for others to get started.

Ideas I am working on:
1) Breakout board (epibreakout) with simple buffered multiple modular IOs and serial interfaces 0.1 inch headers (might include some ADC also)
2) Prototyping board with 0.1 pitch holes and footprints for rapid prototyping
3) Hybrid Motor control board (epiFlux) for servos,steppers etc..

Other ideas I am thinking about
1) A Realtime Xmos intefacing board - Channel interfacing and maybe slices
2) Epiphany 16 add on board - Even more number crunching!
3) Coms board with industrial standard breakouts CAN.RS485/422 etc..

regards
Al
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Re: Ideas for daughter cards?

Postby tschaboo » Fri Feb 15, 2013 10:55 am

Folknology wrote:2) Epiphany 16 add on board - Even more number crunching!

Stackable please!
That sounds like the most important card yet ... why did nobody think of it yet? :D
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Re: Ideas for daughter cards?

Postby Folknology » Fri Feb 15, 2013 10:59 am

tschaboo wrote:
Folknology wrote:2) Epiphany 16 add on board - Even more number crunching!

Stackable please!
That sounds like the most important card yet ... why did nobody think of it yet? :D


Yeah I was wondering topologically the best way to do this, I figured maybe rotating the dual epi PECs 90 degrees with each board, or maybe going sideways and trying to avoid interfering with the FPGA IO somehow.
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Re: Ideas for daughter cards?

Postby whvholst » Fri Feb 15, 2013 12:23 pm

SATA would pretty much top my wish list, right now it will be rather difficult to configure a Parallella cluster with a sensible level of disk i/o performance.
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Re: Ideas for daughter cards?

Postby 9600 » Fri Feb 15, 2013 12:38 pm

whvholst wrote:SATA would pretty much top my wish list, right now it will be rather difficult to configure a Parallella cluster with a sensible level of disk i/o performance.


What about block level network storage? E.g. iSCSI. Direct attached storage isn't that common in the data center... And if building a cluster I would have thought that pooled storage would bring many other benefits.

Cheers,

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Re: Ideas for daughter cards?

Postby tschaboo » Fri Feb 15, 2013 1:23 pm

[offtopic]
@9600: iSCSI will be the workaround I'll use if SATA is not feasible.

In HPC applications you usually have local disk storage. Primary reason is of course cost, secondary reason is that it scales better. Very often the nodes work in lockstep (think MPI) and thus the traffic is very bursty. Supporting those bursts from a central storage needs very fast and expensive networking.

In the "normal" datacenter usage central storage brings a lot of benefits and the bandwith requirement is more evened out.
[/offtopic]
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Re: Ideas for daughter cards?

Postby Folknology » Fri Feb 15, 2013 2:19 pm

Hmm is there a more direct solidstate storage standard, I seem to remember folks talking about the idea as part of open compute, if so a card that could provide direct SS storage might also be a good idea for local processing.

Update : Just found open compute storage how about Fusion IO, this could work with a PCIe interface?
This would need to be taken on by someone with good FPGA/NAND/PCIe understanding (not my kind of expertise) but it would be very fast and provides some good Open Comptue features.

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