191 lines
6.5 KiB
Markdown
191 lines
6.5 KiB
Markdown
Contiki RPL Quickstart using Econotags
|
|
======================================
|
|
|
|
Contiki RPL implements the IETF ROLL working group's RPL: IPv6 Routing
|
|
Protocol for Low power and Lossy Networks. This routing standard
|
|
enables you to set up a route-over 6LowPAN network.
|
|
|
|
This tutorial will show you how to run Contiki's RPL demos on Redwire
|
|
Econotags.
|
|
|
|
1) Obtain Redwire Econotags, or other mc1322x hardware.
|
|
---------------------------------------------------------------
|
|
|
|
See [the mc1322x hardware](http://mc1322x.devl.org/hardware.html) for
|
|
an incomplete, but growing list of mc1322x hardware.
|
|
|
|
We recommend a few [Econotags](http://www.redwirellc.com/store/node/1)
|
|
to get started. In addition to the mc13224v, the Econotag also has the
|
|
FT2232H USB dual port controller. One port is connected to UART1 and
|
|
all the necessary pins to load, erase, and reset the mc13224v. The
|
|
other port is connected to the JTAG pins for run-time debugging. **No
|
|
other programming hardware is necessary. Just your computer!**
|
|
|
|
2) Get a toolchain, and Contiki source.
|
|
----------------------------------------
|
|
|
|
Everything you need is in [Instant Contiki
|
|
2.5](http://www.sics.se/contiki/news/contiki-2.5-release-candidate-1-avaliable.html). If
|
|
you are going to be working primarily with Contiki then this is the
|
|
way to go.
|
|
|
|
Instant Contiki contains the
|
|
[mc1322x-oe](http://git.devl.org/?p=malvira/mc1322x-oe.git;a=summary)
|
|
[[ubuntu]](http://mc1322x.devl.org/ubuntu.html)
|
|
[[mac]](http://mc1322x.devl.org/mac.html) toolchain.
|
|
|
|
Development of the mc1322x port occurs in a different branch from the
|
|
main Contiki CVS repository. The most current mc1322x contiki port can be found here:
|
|
[contik-mc1322x.git](http://git.devl.org/?p=malvira/contiki-mc1322x.git)
|
|
|
|
3) Build the border-router and rpl-udp
|
|
---------------------------------------
|
|
|
|
The RPL demo consists of a "Border router" and at least one other RPL
|
|
enabled node. For this tutorial, the border router creates a RPL DAG
|
|
and is the ROOT. The other node will be a RPL udp-client. It joins the
|
|
RPL network, acts as an RPL router, and sends a UDP datagram to a
|
|
hardcoded IPV6 address. This tutorial only handles a two node network,
|
|
but can be extended for any number of nodes.
|
|
|
|
The general command to make a Contiki binary for the Econotag is:
|
|
|
|
make TARGET=redbee-econotag
|
|
|
|
To build the border-router:
|
|
|
|
cd contiki-2.x/examples/ipv6/rpl-border-router
|
|
make TARGET=redbee-econotag
|
|
|
|
This will produce the binary image
|
|
'border-router_redbee-econotag.bin', which you can load directly on to
|
|
an mc1322x and execute.
|
|
|
|
To build the udp-client, do:
|
|
|
|
cd contiki-2.x/examples/ipv6/udp-client
|
|
make TARGET=redbee-econotag
|
|
|
|
which will build 'udp-client_redbee-econotag.bin'.
|
|
|
|
4) Load the binaries on the Econotags:
|
|
-------------------------------------------
|
|
|
|
### a) Run the econotags with randomized MAC addresses (random, but persistent)
|
|
|
|
After building border-router_redbee-econotag.bin, you load the code
|
|
with:
|
|
|
|
mc1322x-load.pl -f border-router_redbee-econotag.bin -t /dev/ttyUSB1 -c 'bbmc -l redbee-econotag reset'
|
|
|
|
The econotag will flash itself with a random Redwire MAC address if
|
|
you haven't programmed one in:
|
|
|
|
address in flash blank, setting to defined IAB with a random extention.
|
|
flashing blank address
|
|
Rime started with address 00:50:C2:FF:FE:A8:C2:66
|
|
CSMA sicslowmac, channel check rate 100 Hz, radio channel 26
|
|
Tentative link-local IPv6 address
|
|
fe80:0000:0000:0000:0250:c2ff:fea8:c266
|
|
Tentative global IPv6 address aaaa:0000:0000:0000:0250:c2ff:fea8:c266
|
|
|
|
This mac address is used to derive its IPv6 address. In this example,
|
|
it's aaaa::0250:c2ff:fea8:c266.
|
|
|
|
The border router connects to your computer over a SLIP tunnel formed
|
|
by `tunslip6` --- a tool included in Contiki.
|
|
|
|
To make tunslip6:
|
|
|
|
cd contiki-2.x/tools
|
|
make tunslip6
|
|
|
|
You need to run tunslip6 to create this tunnel and SLIP connection:
|
|
|
|
tunslip6 -s /dev/ttyUSB1 aaaa::1/64
|
|
|
|
### b) Program the MAC addresses on the Econotag
|
|
|
|
To erase the econotag (and the MAC address), first make sure you've
|
|
built BBMC:
|
|
|
|
cd contiki-2.x/cpu/mc1322x/tool/ftditools
|
|
make
|
|
|
|
If you have trouble, see the [BBMC
|
|
page](http://mc1322x.devl.org/bbmc.html) for details. BBMC controls
|
|
the FT2232H over USB through libftdi. It can reset or erase an
|
|
mc13224v. To erase:
|
|
|
|
bbmc -l redbee-econotag erase
|
|
|
|
Then to flash just the MAC address you need to build flasher from
|
|
libmc1322x. See:
|
|
|
|
http://mc1322x.devl.org/libmc1322x.html
|
|
|
|
Then to flash the MAC address you can do:
|
|
|
|
mc1322x-load.pl -e -f flasher_redbee-econotag.bin -z -t /dev/ttyUSB1 -c 'bbmc -l redbee-econotag reset' 0x1e000,0xABC25000,0x010000C0
|
|
|
|
+ -z to indicate you are sending a zero length binary to flasher.
|
|
+ -e causes mc1322x-load.pl to exit when it's done, instead of
|
|
dropping to a terminal
|
|
|
|
The next time you run Contiki you'll get:
|
|
|
|
loading rime address from flash.
|
|
Rime started with address 00:50:C2:AB:C0:00:00:01
|
|
CSMA sicslowmac, channel check rate 100 Hz, radio channel 26
|
|
Tentative link-local IPv6 address
|
|
fe80:0000:0000:0000:0250:c2ab:c000:0001
|
|
Tentative global IPv6 address aaaa:0000:0000:0000:0250:c2ab:c000:0001
|
|
|
|
N.B. for all of the bbmc commands, you'll need to use -i if you have
|
|
more than one econotag plugged in. On most systems the indexes are
|
|
enumerated backwards from the terminals. E.g. if you have 23 nodes
|
|
connected, then /dev/ttyUSB1 will be on ftdi index 22 and the load
|
|
command would be:
|
|
|
|
mc1322x-load.pl -f foo.bin -t /dev/ttyUSB1 -c 'bbmc -l redbee-econotag -i 22 reset'
|
|
|
|
5) Start the udp-client
|
|
-----------------------
|
|
|
|
Use mc1322x-load.pl to run `udp-client_redbee-econotag.bin` on the
|
|
second econotag:
|
|
|
|
mc1322x-load.pl -f udp-client_redbee-econotag.bin -t /dev/ttyUSB3
|
|
'bbmc -l redbee-econotag -i 0'
|
|
|
|
6) Check the border router's webpage for status
|
|
------------------------------------------------
|
|
|
|
The RPL border-router serves a webpage that displays the known
|
|
neighbors and the known routes to all the node on the DAG. In firefox,
|
|
you can type in the following to go to a IPv6 address:
|
|
|
|
http://[aaaa:0000:0000:0000:0250:c2ff:fea8:c266]
|
|
|
|
#### Neighbors
|
|
fe80::250:c2ff:fea8:cbf4
|
|
#### Routes
|
|
aaaa::250:c2ff:fea8:cbf4/128 (via fe80::250:c2ff:fea8:cbf4)
|
|
|
|
7) Ping6 all the nodes
|
|
----------------------
|
|
|
|
After a short time, once the DAG forms to a node, you should see a
|
|
route appear on the border-router's status page. You can ping this
|
|
node from the computer running 'tunslip6'
|
|
|
|
ping6 aaaa::250:c2ff:fea8:cbf4
|
|
|
|
A successful ping shows that both a downward and upward route has
|
|
formed.
|
|
|
|
8) That's it!
|
|
-------------
|
|
|
|
Now go mesh and stuff.
|
|
|