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Topic: Arduino Due Mini/Nano (Read 14 times) previous topic - next topic

pico

#30
Oct 31, 2012, 04:40 pm Last Edit: Oct 31, 2012, 04:45 pm by pico Reason: 1
And then there's this guy:

http://jkdevices.com/arduino-megamini

not particularly mini, tiny or teensy, but it does get the full sized TQFP chip on there and manages to get all the pins broken out, in a form factor that looks comparable in size to an Uno. Mini for a Mega, I guess!
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pico

Yet another interesting mini ARM dev board:

http://www.kickstarter.com/projects/kuy/galago-make-things-better

also:

http://outbreak.co/galago

The thing that sets this apart is the IDE hardware debugging using JTAG and gdb. (I'm intrigued enough that I've actually preordered one. Must. Stop. Buying. Dev. Boards. Just. Because. They. Look. Interesting.)

I was wondering if the DUE might not have JTAG based debugging with it. Are there any firm future plans for hardware debugging on an Arduino ARM based deg board? I seem to remember discussions where this was going to be on the agenda for the DUE (a NZ-based developer of a debugger product springs to mind), but I guess it got left out under time pressure to get it out the door. Or are the technical difficulties deeper than that?

Hardware debugging would be a very nice feature. Obviously.

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Palliser

Notice that the LFBGA144 package for the ATSAM3X8E is twice smaller than the actual  LQFP144 of the Arduino Due.

LFBGA144
10 x 10 x 1.4 mm

LQFP144
20 x 20 x 2.4 mm

Here a picture of both together with the Arduino DUE.




Graynomad

The trouble with BGAs is that you need about 10 layers to get the pins broken out. They are nice and small though.

______
Rob
Rob Gray aka the GRAYnomad www.robgray.com

giantsfan3

While it does indeed have a compact footprint, I don't see much advantage to the BGA version here.
Especially because if a nano version is of interest, the pinout would contribute far more to the total area of the board than the uC itself. That said, if a smaller chip AND fewer pins are the way taken, then SAM3A4C and SAM3X4C, which are 100-pin variants from the same family, might be options as someone mentioned earlier.

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