What you want can be found in MPR-MIB Series Users Manual from Crossbow
Technology.
2010/2/5 Sourabh Sankule sank...@gmail.com
Hi,
I am designing a new hardware platform in which I am using ATmega-128 and
CC2420.
I need to know the connection/interface between CC2420 and Atmega (apart
Hi,
I got the connection details from *HplCC2420PinsC.nc* file in the folder
tinyos-2.x\tos\platforms\
micaz\chips\cc2420\
It is not given in the manual from Crossbow.
Appreciate the help.
Regards
Sourabh Sankule
www.sourabh.sankule.com
On Sat, Feb 6, 2010 at 3:31 PM, Wei Liu
Hi,
I am designing a new hardware platform in which I am using ATmega-128 and
CC2420.
I need to know the connection/interface between CC2420 and Atmega (apart
from SPI few more pins are involved). I have tried searching the schematic
but no results. Also Mica-2 uses CC1000 and its interfacing is
I believe the Xbow User Manuals have micaz addenda that
show what is different from the mica2. But I've never
seen a full micaz schematic.
MS
Sourabh Sankule wrote:
Hi,
I am designing a new hardware platform in which I am using ATmega-128
and CC2420.
I need to know the
Not bad English, just didn't know to what you were referring...
I would place a small wager that you are seeing the MAC protocol
backoff, although 20 micro-sec seems a little short...
Search this list for MAC related stuff, I think there is an
approved way to change the behavior.
MS
Carlos Gil
Hi Michael,
You're right regarding to SPI problems. I don't expect to find problems with
SPI in micaz. I've been testing continuous sending in cc2420 in micaz and,
after carefully read data sheet and all code (line by line), there's one
spare variable timing. The value of this timing moves from
I'm not sure what spare variable timing means, but the protocol
does have a random backoff 'feature' for CDMA (or whatever the
correct Multi-Letter-Acronym is). Another delay might be due
to something sampling the SPI bus for other activity. Can you
verify that no other SPI access is being
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
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
___
Tinyos-help
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:
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