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teco-kit / Jennisense

A modularized open hardware, sensor drivers based on contiki for the JN51xx µController. A detailed description and how-to can be found in the wiki (see link below).
http://github.com/teco-kit/Jennisense/wiki
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Is Rime Stack working? #2

Open tglaria opened 11 years ago

tglaria commented 11 years ago

A simple code does work in simulations (the examples actually), but can't make them work with the develpment boards.

Is something not implemented yet or it should be working out of the box?

Also, can the code be compiled WITHOUT the UIP CONF IPV6 flag?

pscholl commented 11 years ago

rime was never tested.

ipv4 (i.e. compiling without UIP_CONF_IPv6) needs some tweaking in contiki-main.c and on a network bridge. But should work in principle.

tglaria commented 11 years ago

On Mon, Feb 18, 2013 at 5:57 PM, Philipp M. Scholl <notifications@github.com

wrote:

ipv4 (i.e. compiling without UIP_CONF_IPv6) needs some tweaking in contiki-main.c and on a network bridge. But should work in principle.

I want to make use of the 'smaller' comunication stack, since I won't be using IP for now. Is there a noticeable difference between using one or the other? I need it make wireless synchronisation (with differences in the µs).

Atte. Tomás Ángel Glaría López

pscholl commented 11 years ago

rime supports more wireless-sensor network like comm primitives but you loose IP interoperability (kind of, you can also run it on top of UDP, which at least let's you use your PC's TCP/IP stack to some extent).

For time synchornization, you might wanna check out these repositories: https://github.com/hopfgarten/jnode-applications (the sync master and slave app, test apps for the syncing) and the modified contiki branch (look for changes in uip6.c, uip.c and clock.[hc]): https://github.com/hopfgarten/contiki-jn51xx

It implements time synchronization based on ICMP Timestamps, i.e. the slave just listens for ICMP Timestamp packets (with a uint64_t timestamp from hrclock_time()) and changes its local clock accordingly.