XBase

XCore Project reviews, ideas, videos and proposals.
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wibauxl
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XBase

Post by wibauxl »

I just wanted to present a project for community review.
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0058.jpg
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It is called XBase as a XMOS base for a lot of different applications.
xbase-legend.png
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xbase-legend.png
xbase-legend.png (128.6 KiB) Viewed 8227 times
The main features are:
  • Processing power can be increased by simple connection of another XBase, either above or in-line with the first XBase.
  • ADC, 8 channels, up to 1 000 000 samples/sec.
  • FT2232 for serial communications and serial bootloader.
  • Arduino shield footprint and functions to add one of the numerous shields available.
  • Alternate footprint exposing all ports of the XS1-L1 TQFP 128
I have done a quick and dirty YouTube video to illustrate the various possibilities of the board.
0Ms44E5B8Dg
Last edited by wibauxl on Tue May 04, 2010 5:15 pm, edited 1 time in total.


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wibauxl
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Post by wibauxl »

More images:
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0340.jpg
0340.jpg (38.78 KiB) Viewed 8225 times
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wibauxl
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Post by wibauxl »

And some more:
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0450.jpg
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wibauxl
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Post by wibauxl »

The schematics:
xbase_schematics.pdf
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xbase_schematics.pdf
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2 layer PCB routed in Eagle:
xbase-pcb.png
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xbase-pcb.png
xbase-pcb.png (41.86 KiB) Viewed 8218 times
And bill of material, with Digikey US prices:
xbase-partlist.pdf
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xbase-partlist.pdf
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Image
XBase by Laurent Wibaux is licensed under a Creative Commons Attribution-Noncommercial-Share Alike 3.0 United States License. Permissions beyond the scope of this license may be available at lm.wibaux@gmail.com.

Comments are welcome!!
I will listen to feedback and suggestions for 2 weeks. If none are coming or the design seems to be OK, I will go into production for a few boards for verification. I they are OK, we could go for a pooled production for those interested.
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TonyD
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Post by TonyD »

Laurent, thanks for posting :)

It looks a great design.
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jason
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Post by jason »

Great informative post! You should make a project for it too with a link in the description to this forum thread (may help you sell a few too as google loves our projects section if you use nice keywords in your text for the title/description etc)
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lilltroll
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Post by lilltroll »

Can you make some with 4 G4´s as well ? 8-)
Probably not the most confused programmer anymore on the XCORE forum.
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shawn
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Post by shawn »

Very nice ;) Very industrial design. I think you should have no problem finding buyers and or those interested in a group run. I think I want one, looks like Xbase shall be an excellent platform for a ton of options. Xbase for the G series would also be of great interest. Will be paying attention to this and hope to provide good feedback. Anyway the XBASE ideal is very cool...
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boeserbaer
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Post by boeserbaer »

Nice job! Thanks for sharing.

Did you look carefully at your power dissipation on your voltage regulators? The switchers are hardly more expensive. I am using the ON-semi form the xmso reference design, and I noticed that the newest xmos reference design for the L2 uses a 1.6A fairchild switcher. Also did you get the power sequencing errata? 3.3V up and stable before ramping the 1.0.

Regards,
Mike
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wibauxl
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Post by wibauxl »

boeserbaer wrote:Also did you get the power sequencing errata? 3.3V up and stable before ramping the 1.0.
I will review this point carrefully.
I will probably move to a switcher if I have to feed the 1V regulator from the 3.3V as the 1V can have an intake of 300mA.
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