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IEEE 802.15.4 subsystem, IEEE 802.15.4 Low-Rate Wireless Personal Area Network (WPAN) http://projects.qi-hardware.com/index.php/p/ben-wpan/
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Werner Almesberger 86e556ce92 First part of the board bringup: power and clock.
- atusd/ERRATA: variations of the circuit being debugged from the design
- tools/Makefile, tools/try.c, tools/lib/atusd.c: user-space tool to enable
  the board and (in the future) establish communication
- atusd/sim/clk.sch: simulation of CLK attenuation circuit with capacitative
  load from scope probe
2010-09-04 23:14:57 -03:00
atrf Disable CLKM in atspi-txrx, to reduce interferences. 2010-08-26 15:48:29 -03:00
atusd First part of the board bringup: power and clock. 2010-09-04 23:14:57 -03:00
cam Typo causing silent failure: forgot the semicolon, so "doit" thought these 2010-08-14 23:57:56 -03:00
cntr Picking time in the middle of the interval, not its edge, and reduce 2010-08-26 00:52:50 -03:00
components Added components (transistor and balun) for the uSD variant. 2010-09-02 18:15:28 -03:00
modules Assorted small layout improvements. 2010-09-03 08:02:07 -03:00
scripts Debugged and cleaned up schps2pdf. 2010-08-31 03:04:46 -03:00
AUTHORS Added components (transistor and balun) for the uSD variant. 2010-09-02 18:15:28 -03:00
BOOKSHELF Added components (transistor and balun) for the uSD variant. 2010-09-02 18:15:28 -03:00
COPYING Added COPYING (GPL 2/LGPL 2.1/CC-BY-SA 3.0) and AUTHORS. Put pointer 2010-08-12 09:44:48 -03:00
Makefile Moved hardware design files from top-level directory to atrf/ 2010-08-22 16:06:43 -03:00
Makefile.recurse Finished and tested TX/RX. (LQ doesn't work yet, the rest does.) 2010-08-24 06:16:48 -03:00
README Added COPYING (GPL 2/LGPL 2.1/CC-BY-SA 3.0) and AUTHORS. Put pointer 2010-08-12 09:44:48 -03:00
TODO Disable CLKM in atspi-txrx, to reduce interferences. 2010-08-26 15:48:29 -03:00

IEEE 802.15.4 Low-Rate Wireless Personal Area Network (WPAN)
============================================================


IEEE 802.15.4 defines physical layers and a media access control for
wireless networks. ZigBee and 6loWPAN are based on IEEE 802.15.4.

This project aims to add experimental WPAN functionality to the Ben
NanoNote, in order to permit evaluation of overall network performance
and to examine possible integration into future devices.

This work is licensed under the terms detailed in the file COPYING.


Hardware architecture
---------------------

IEEE 802.15.4 transceiver chips are available from several manufacturers,
including Atmel, Freescale, and Texas Instruments. These chips are similar
in size, functionality, and cost. The first prototype is based on the
Atmel AT86RF230.

The RF module will be physically placed on the left side of the LCD
module, replacing part of the display's PCB.

When installed in the Ben, the transceiver will connect directly via SPI
to the Jz4720. For development, a SiLabs C8051F326 microcontroller
implements a USB to SPI conversion.