fabio kzovisk | 21 Oct 15:22 2014
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Delay and Packet delivery ratio

Hi all,

I'm looking for an example of  delay and Packet Delivery Ratio measurement with RPL protocol,
someone could help
Thanks
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Muhammed Rafi | 21 Oct 10:53 2014
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Quality of Service

Hi all,
Is  Qos supported in contiki?

thanks
Rafi

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Muhammet KAYA | 21 Oct 09:44 2014
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Re: [CC2538][SPI] Slave mode

Hi, 
Are you sure that the cc2538 can communicate as a slave via SPI.
CDT,
Muhammet K.

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Luís Marques | 21 Oct 02:27 2014
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Rime dependencies, clocks...

Hi,

What are the requirements to use rime? It builds successfully for TARGET=sky, but not for cooja motes (e.g., `cd contiki-2.7/examples && make TARGET=cooja' fails). If I want to use cooja motes and I can't use rime, what would you recommend I replace rime with?

I'm experimenting with some things that are very sensitive to timings. Is there a clock which has both good resolution and infrequent wrapping? I'm only seeing clocks either based on 16-bit integers or with second resolution.

BTW, the timesynch documentation says...

"The time synchronization is implicit in that no explicit time synchronization messages are sent: the module relies on the underlying network device driver to timestamp all radio messages, both outgoing and incoming."

...but in my experience that wasn't the case; I had to disable timesync support to not see extraneous network messages in the simulator. Any comment on that? (perhaps I made some mistake?)

Best regards,
Luís
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fabio kzovisk | 21 Oct 01:31 2014
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Delay and Packet delivery ratio

Hi all,

I'm looking for an example of  delay and Packet Delivery Ratio measurement with RPL protocol,
someone could help
Thanks
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James J Solderitsch | 20 Oct 22:47 2014

Firmware built in Contiki VM works on SmartRF06/cc2538 but not with latest gcc-arm-none-eabi natively on Mac OS X

I am working with an http_socket_get example and I needed to increase the size of some string declarations
in http-socket.c and http-socket.h in order to pass some long URL strings through.

I am actually using a source directory tree from ThingSquare from mid February or so rather than the current
git clone for historical reasons.

I can build ok using the tool chain onside of the Contiki 2.7 VM and can flash the firmware to the device with
the TI Flasher. Thing work on the device.

But I wanted to see if I could get the same compilation natively on my Mac running OS X Mavericks.

So I got the gcc-arm-none-eabi-4_8-2014q3 release and adjusted my path to use the gcc bits within. Make
works and I get a .bin image as before -- a few more compilation warnings, but no errors.

>From the same source as used on Contiki, I build the same .bin result to flash to the board. But when I flash it
and restart the device I get it into a non-booting state -- it starts to boot, then keeps trying again -- over
and over.

The firmware is actually smaller in this non-working bin image than what I have in the Contiki VM produced version.

Could it be that this is due my Mac having a case insensitive file system? Or is there some other cause that
people might be able to point me to.

Thanks for any suggestions.

Jim

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Nikos Ves | 20 Oct 15:59 2014
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Broadcast restful calls

Hello to all,
Based on the rest-example, i am trying to implement an alteration. I want to create a simulation involving two servers and one client in cooja, where the client broadcasts the coap message for a resource and receives the answer by one or both the servers using udp. I am having trouble though, in utilizing the broadcast functionality with coap. I used the broadcast example code found here:

http://sourceforge.net/p/contiki/mailman/contiki-developers/thread/4D11D880.5080007 <at> sics.se/

and i) added the send_broadcast() calls into the send_data() function of coap-client-example.c , ii) called send_data in the while loop and iii) exchanged all &client_conn to &broadcast_conn. Nevertheless the request does not seem to reach the servers. I would really appreciate any guidance or ideas. Thank you in advance for your time.




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Remy 'Sieben' Leone | 20 Oct 15:28 2014
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Free SSL certificate for contiki-os

Hello,


I've stumbled upon an offer of free ssl certificate for open source projects. I think contiki os could qualify to get one :-)

Everybody loves to see a nice green lock next to the URL.


Best

Rémy
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Pei Zhang | 19 Oct 22:42 2014
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MobiQuitous 2014: CALL FOR PARTICIPATION

Dear Colleagues,
I would like to bring your attention to the Call for participation of MobiQuitous 2014 bellow. Please note the early registration deadline of:

November 2nd, 2014.

-----------------------------------------------------------------------------------

CALL FOR PARTICIPATION

MOBIQUITOUS 2014

11th International Conference on Mobile and Ubiquitous Systems: Computing, Networking and Services

December 2 - 5 2014 London, UK

KEYNOTE SPEAKERS

Nigel Davies, Lancaster University

Konstantina Papagiannaki, Telefonica Research and Innovation

SCOPE

The Eleventh Annual International Conference on Mobile and Ubiquitous Systems: Computing, Networking and Services (MobiQuitous 2014) will provide a forum for practitioners and researchers from diverse backgrounds to interact and exchange experiences about the design and implementation of mobile and ubiquitous systems. Areas addressed by the conference include systems, applications, social networks, middleware, networking, data management and services, all with special focus on mobility and ubiquitous computing.

TOPICS

Topics include, but are not limited to, the following:

Wireless Access Technologies Networked Sensing, and Applications Mobile Device Architectures Mobile Systems and Applications Mobile Data Management and Analytics Mobile Multimedia Mobile User Interfaces and Interaction Technologies Mobile User Experience Toolkit, and Languages for Mobile Computing Energy Aware Mobile Computing Mobile Cloud Computing Semantic Web Technologies Localization and Tracking Internet of Things – Systems, Data Analytics, and Applications Crowdsourcing: - Platforms and Applications Participatory Sensing Social Network Applications to Mobile Computing Context and Location Aware Applications and Services Wearable Computing Body Area Networks Security and Privacy

Preliminary Program

Registration is Open

The conference will be held in newly built Heston Hyde Hotel which is the latest luxury premier hotel in London offering a comfortable adobe suitable for both the business and recreational travelers.

CO-LOCATED WORKSHOPS

i-locate 2014 The 1st Workshop on Indoor/Outdoor Location Based Services

CSSWEARABLE 2014 The 1st Workshop on Cloud and Server Support for Wearable Computing

IoT ECOSYSTEMS Workshop on Internet of Things Ecosystems: Computing, Networking and Services

ORGANIZING COMMITTEE

General Chair
Moustafa Youssef, Egypt-Japan University of Science and Technology (E-JUST)

TPC Co-Chairs
Cecilia Mascolo, University of Cambridge, UK Fahim Kawsar, Bell Labs, Belgium

Workshop Co-Chairs
Iqbal Mohomed. IBM Research
Stephan Sigg. Georg-August-University of Goettingen, Germany

Local Arrangements Chair
Sarah Gallacher, University College London, UK Nicolai Marquardt, University College London, UK

Publicity Co-Chair
Pei Zhang, Carnegie Mellon University, USA

Web Chair
Basem Shihada, KAUST, KSA

Poster
Arjuna Sathiaseelan, University of Cambridge, UK Souvik Sen, HP Research, USA

Demo
Paolo Bellavista, Università di Bologna, Italy Khaled Harras, Carnegie Mellon University, Qatar

Publication Chair
Tamer ElBatt, Cairo University and Nile University, Egypt Xiumei Yang, Chinese Academy of Sciences

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juan jesus pinuaga | 19 Oct 18:33 2014
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CC2531 Reduce power consumption

Hello.

I'm using a CC2531 Dongle USB as a node of a WSN, i need it because its reduced size. I use it with a small battery.

The problem is that in normal operation it consumes around 30mA and this is much for a small battery. I tried to use LPM or RDC but it seems that nothing works.

The node have to wait until some other node communicates with it and then it have to answer.

I tried using RDC like contikimac (i read that it is not possible on cc2530/31), lpp or x-mac but without results. The only one that works is nullrdc.

I need to know how to reduce the power consumption of the module, it's very important for my project (grade final project), please help me, and sorry for my english.

Thanks.
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Andreas Dröscher | 19 Oct 04:21 2014
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CC2538 ARM CortexM3 Multi-threading

Hi

I'm using tinyDTLS for one of my projects. Some of the long running functions > 100ms have a depth of approx. 7 function calls. I came to the conclusion that it is easier to implement Multi-threading support for ARM then to patch all functions with the PT-Defines.
Before I get my hands dirty. Does anyone already have an implementation he is willing to share?

Best Wishes
Andreas


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Gmane