168 lines
5.4 KiB
Markdown
168 lines
5.4 KiB
Markdown
Getting Started with Contiki using avr-rss2
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===========================================
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This guide's aim is to help you start using Contiki for RSS2 boards
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The platform supports different AtMega-RF boards:
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* Based on MCU AtMega128RFR2
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* Based on MCU AtMega256RFR2
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* Based on MCU AtMega128RFA1
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Boards all looks the same. AtMega256RFR2 boards are labeled with "Made in EU".
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The platform and CPU code, are common for both boards, can be found under
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`$(CONTIKI)/platfrom/avr-rssa`. The port was developed and tested with RSS2.
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This guide assumes that you have basic understanding of how to use the
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command line and perform basic admin tasks on UNIX family OSs. You should
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also have understanding about the Contiki OS design as well have C
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programming skills.
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Board Features
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----------------
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* Chip Antenna. Supercardiod.
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* Robust radio performance. Up to 300 meter line-of-sight.
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* Unique EUI64 address via chip combined with EEPROM
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* Onboard temp sensor DS18B20,
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* Light Sensor.
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* 32kHz RTC xtal
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* Comparator chip and input.
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* SW FET, (relay) for power on/off of sensors.
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* DC input via LDO up to 25V.
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* Standard. 6-pin TTL-USB header for FTDI cable for UART.
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* PCB formfactor for cheap project box G.40X IP54
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* Power/current:
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* RX ~10mA (Full RPC AtMegaXXRFR2).
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* Sleep ~45uA @ 16MHz XTAL
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* Sleep ~15uA @ 8MHz using internal oscillator
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* Preprogammed bootloader.
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* CE certified by test institute.
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UART
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----
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The board has one UART via the 6-pin TTL-USB adapter, The recommended
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baudrate is 38400 bps. This speed gives the lowest error with respect
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of the used clock frequency used internally. A possible hi-speed is
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250000 bps wich gives 0% Error with 16MHz clock.
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Port Features
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--------------
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The platform has the following key features:
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* Standard, E64 address from built-in chip.
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* First hooks for RPC (Reduced Power Consumption) for AtMegaXXXRFR2.
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Toolchain needs
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---------------
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The Atmel toolcahin is available in most operating system.
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Note. The native OS packages does not yet support the new
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AtMega256RfR2 MCU.
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We'll use toolchain from Atmels web-site. You might also consider
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Instant Contiki.
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###### For Linux
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1. See http://www.atmel.com/tools/ATMELAVRTOOLCHAINFORLINUX.aspx
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2. Download the proper 8-bit platform 32 or 64 bit.
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3. Unpack under `/usr/local`
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4. Add to your search PATH. For example add to `.bashrc`: `export PATH=$PATH:/usr/local/avr8-gnu-toolchain-linux_x86_64/bin` (for 64 bit systems) or `export PATH=$PATH:/usr/local/avr8-gnu-toolchain-linux_x86/bin` (for 32 birt systems).
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5. For flash programming you'll need `avrdude`. It can be installed with the command
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`apt-get install avrdude`
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###### For Windows
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Goes here
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Contiki build TARGET
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--------------------
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make TARGET=avr-rss2
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For AtMega128RFR2 boards:
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make TARGET=avr-rss2 MCU=atmega128rfr2
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For AtMega128RFA1 boards:
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make TARGET=avr-rss2 MCU=atmega128rfa1
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Flashing
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--------
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Programming using avrdude using serial bootloader. (TTL-USB cable)
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Press the RESET button. The bootloader with wait for boot commands
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for 3 seconds.
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Flashing commnad line example 256k MCU:
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avrdude -p m256rfr2 -c stk500v2 -P /dev/ttyUSB0 -b 38400 -e -U flash:w:hello-world.avr-rss2
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Flashing commnad line example 128k MCU:
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avrdude -p m128rfa1 -c avr109 -P /dev/ttyUSB0 -b 38400 -e -U flash:w:hello-world.avr-rss2
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Older boards may use the avr109 boot loader. The `stk500v2` uses the yellow
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lED while the avr109 uses the red LED.
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Tested applications and examples
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---------------------------------
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* `hello-world`
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* `ipv6/rpl-udp`
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* `ipv6/simple-udp-rpl`
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* `rime`
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* `ipv6/multicast`
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* `examples/powertrace`
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* `examples/sensniff` use 500kBAUD
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* `example-shell`
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Platform tutorial applications
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-----------------------------
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Example to read out various sensors, leds, serial numbers, and so on:
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[platform/avr-rss2/examples/hello-sensors/](examples/hello-sensors/).
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The previous example uses the `sensd` data encoding. An example that uses UDP through 6lowpan is here:
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[platform/avr-rss2/examples/ipv6/rpl-udp-report](examples/ipv6/rpl-udp-report).
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An Ethernet gateway with ip64 NAT, based on Contiki `core/net/ip64` code:
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[platform/avr-rss2/examples/ipv6/rpl-border-router/](examples/ipv6/rpl-border-router/).
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Regressions tests
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-----------------
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Travis compile regression test for the platform:
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[regression-tests/23-compile-avr](../../regression-tests/23-compile-avr).
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This port adds newer version of `avr-gcc` compiler (4.9.2), to support
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testing of newer Atmel MCU as Atmega256RFR2.
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Board approvals
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---------------
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Summary:
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* R&TTE 73/23/EEC, 89/336/EEC and 99/5/EC
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* Safety: EN 60950-1:2006 + A12: 2011
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* RF: ETSI EN 300 328 V1.7.1 (2006-10)
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* EMC: ETSI EN 301 489-1 V1.9.2 (2011-09), ETSI EN 301 489-17 V2.2.1 (2012-09)
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* EMF: EN 62479:2010
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* Human exposure to electromagnetic fields: EN 62479:2010
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Commercial availability
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------------------------
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Through vendor and though resellers. Note board is will only available
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were CE approval is covered. This may be further restricted by WEEE.
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Contact vendor. For research legislation is more relaxed in most
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countries.
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References
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----------
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AtMega64/128/256/RFR2 chip documentation available via Atmel.
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Schematics and boards description. Available via Radio-Senors
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Smart Reduced Power Consumption Techniques. AT02594 available via Atmel.
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ToDo
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-----
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API for radio power saving settings introduced Atmels app note AT02594.
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Also function for the desensitizing RPC resister.
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Vendor info
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-----------
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http://radio-sensors.com/
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Maintainer
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Robert Olsson <robert@radio-sensors.com>
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