mirror of
git://projects.qi-hardware.com/ben-wpan.git
synced 2025-02-16 22:04:43 +02:00
0d537612c3
images. - scripts/ppmdiff/ppmdiff.c (usage, main): ppmdiff now accepts the name of an output file as the last argument - scripts/ppmdiff/ppmdiff.c (shadow_diff, usage, main): a second set of images can be specified that will only be scanned for changes, without otherwise becoming part of the merged image - scripts/schhist2web (pngdiff): specify output name as last argument of ppmdiff - scripts/schhist2web: use shadow images to mark changes only visible in regular version also in thumbnails
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.