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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 18eec557d0 Updated atusd driver for new hardware. Make use of the interrupt line.
- tools/lib/atusd.c (spi_send_partial, spi_send): removed the old spi_send
  and renamed spi_send_partial to spi_send
- tools/lib/atusd.c (atusd_cycle, spi_send, spi_recv, atusd_open): updated
  for removal of SLP_TR and split of MxSx into MOSI and MISO
- tools/lib/atusd.c (atusd_reset_rf, atusd_open): added delays to precharge
  the capacitors
- tools/lib/atusd.c (atusd_reset, spi_data_in, spi_data_out, spi_finish):
  removed functions for obsolete hardware features
- tools/lib/atusd.c (atusd_reg_read): removed calls to removed functions
- tools/lib/atusd.c (atusd_buf_write, atusd_buf_read, atusd_driver): new
  buffer read/write functions
- tools/atspi-txrx/atspi-txrx.c (init_txrx): set the internal osciallator
  trim only in the USB version. Switch to the external oscillator in the
  uSD version.
- tools/atspi-rssi/atspi-rssi.c (sweep), tools/atspi-txrx/atspi-txrx.c
  (set_channel): wait for the PLL to settle after setting the channel
- tools/include/atspi.h, tools/lib/atspi.c (atspi_interrupt),
  tools/lib/driver.h (struct atspi_driver), tools/lib/atusd.c
  (atusd_interrupt): new function to poll the interrupt line
- tools/atspi-txrx/atspi-txrx.c (receive): only read REG_IRQ_STATUS if
  there is a pending interrupt
- tools/atspi-id/atspi-id.c (usage): print "usage:" as well
- tools/Makefile (upload): upload the atspi tools to the Ben
2010-09-09 09:19:06 -03:00
atrf Moved tools/ out of atrf, in preparation of merge with atusd. 2010-09-05 17:37:35 -03:00
atusd atusd/atusd.brd: bumped the version to 100908 2010-09-08 22:54:44 -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 Moved schhist2web and friends over to project eda-tools. 2010-09-07 17:03:45 -03:00
tools Updated atusd driver for new hardware. Make use of the interrupt line. 2010-09-09 09:19:06 -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.