The official git repository for OSD-Contiki, the open source OS for the Internet of Things
Find a file
Andre Guedes e4ff61ff6c galileo: Support for rtimer library
This patch adds support for rtimer library on Galileo's platform.

We use the PIT to implement the rtimer platform dependent
functionalities. We chose the PIT for mainly two reason: I) its
configuration is very simple II) it has a high frequency which
provides us a good clock resolution (requirement from rtimer
library).

Since we keep track of the number of ticks in software, we define
rtimer_clock_t type as uint64_t. This gives us a good amount of time
til the variable overflows. For instance, a 32-bit type would overflow
in about one hour for high clock resolution (~ 1us).

The rtimer clock frequency (RTIMER_ARCH_SECOND) is setup to 1 kHz.
There is no technical matter regarding this value. It is just an
initial guess.

Just for the record, we might want to use HPET in future to
implement the rtimer library since it seems to be more appropriate.
The reason why we don't use it at this moment is that, in order to
configure it, we need support for ACPI 2.0 which we don't. Once we
have use-cases for the rtimer library we'll probably replace PIT
by HPET or any other timer more suitable for the job.
2015-12-21 08:06:14 -02:00
apps Adaptive time synchronization for TSCH 2015-12-07 11:51:41 +01:00
core Merge pull request #1285 from simonduq/pr/tsch 2015-12-07 14:29:10 +01:00
cpu galileo: Add PIT driver 2015-12-21 08:06:14 -02:00
dev Merge pull request #1168 from bthebaudeau/enc28j60-fixes-and-improvements 2015-12-15 00:14:02 +01:00
doc Merge pull request #1133 from bkozak-scanimetrics/cc-gcc 2015-12-05 00:39:59 +01:00
examples Added support for the RE-Mote on-board Real Time Clock Calendar (RTCC) 2015-12-16 18:43:33 +01:00
lib/newlib Implement generic Newlib syscalls 2015-12-16 19:50:49 +01:00
platform galileo: Support for rtimer library 2015-12-21 08:06:14 -02:00
regression-tests jn516x: remove temporary adjustements for compilation in a 802.15.4e-free Contiki 2015-12-07 11:51:50 +01:00
tools fixed make login for Zoul on MAC 2015-12-19 10:28:30 +01:00
.gitattributes Add binary files file extension 2015-10-22 16:19:39 +02:00
.gitignore gitignore: Add Vim swap files 2015-12-21 08:06:14 -02:00
.gitmodules Align to current master 2015-09-04 17:01:04 +02:00
.travis.yml Merge pull request #1219 from simonduq/jn516x-port 2015-09-25 12:09:52 +02:00
CONTRIBUTING.md Updated CONTRIBUTING.md to reflect Contiki's new merging policy 2015-08-18 22:06:56 +02:00
LICENSE Removed the explicit year 2012 to make it more generic 2012-10-25 23:08:54 +02:00
Makefile.include Makefile.include: Remove unused MODULESSUBST 2015-06-01 22:09:58 +02:00
README-BUILDING.md Rename to md 2013-03-26 23:15:37 +01:00
README-EXAMPLES.md Several minor consistency improvements. 2013-07-31 00:55:31 +02:00
README.md Travis icon in README.md: show build status of the current master rather than latest build status (can be any pull request) 2015-08-19 09:21:38 +02:00

The Contiki Operating System

Build Status

Contiki is an open source operating system that runs on tiny low-power microcontrollers and makes it possible to develop applications that make efficient use of the hardware while providing standardized low-power wireless communication for a range of hardware platforms.

Contiki is used in numerous commercial and non-commercial systems, such as city sound monitoring, street lights, networked electrical power meters, industrial monitoring, radiation monitoring, construction site monitoring, alarm systems, remote house monitoring, and so on.

For more information, see the Contiki website:

http://contiki-os.org