[Tinyos-help] MICAz schematics

[Michael Schippling]

I think it's one of those little lapses that makes TOS so intriguing.
Xbow seems to have chosen not to publish a full schematic, only the
bits that changed from the mica2 when they added the different radio.
So what's on that 2420 radio page is probably the best you'll find.
I do remember something about the SPI lines needing to have pull-ups
added in order to work correctly with external devices...

I'm just about to embark on my SPI learning curve so I can't pontificate,
but I'd be surprised if there were timing problems due to hardware that
behaves according to spec.

MS


Carlos Gil Soriano wrote:
> Thank you very much Michael,
> 
> what I am looking for it is the way in which all the SPI modules are 
> interconnected. I am studying timings in CC2420 architectures and I have 
> found one timing that should be caused by SPI factors.
> 
> Before starting to read carefully all the code which involves SPI bus I 
> would like to know micaz schematic to clear up my mind. I would like 
> something similar to the mica schematics found at 
> http://www.tinyos.net/scoop/special/hardware.
> 
> Thanks for your help,
> Carlos
> 
> 2009/6/2 Michael Schippling <schip at santafe.edu <mailto:schip at santafe.edu>>
> 
>     I thought it was in the User's Manual:
>     http://www.xbow.com/Support/Support_pdf_files/MPR-MIB_Series_Users_Manual.pdf
>     but you need to piece it together using the mica2 bits as well. I have a
>     nice mica2 schematic here:
>     http://www.etantdonnes.com/Motes/mica2_sch.pdf
>     which I can't find at: http://www.tinyos.net/scoop/special/hardware
>     anymore. Maybe that will help a bit.
> 
>     MS
> 
>     Carlos Gil Soriano wrote:
> 
>         Hi everyone,
> 
>         I was looking for the schematics of MICAz but I've found
>         nothing. Do you know where I can find them? I've taken a look to
>         xbow site but it only appears a few parts of the schematic, not
>         the whole one.
> 
>         Regards,
>         Carlos
> 
> 
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