The friendly Operating System for the Internet of Things
In order to clone the RIOT repository, you need the Git revision control system and run the following command:
Depending on the hardware you want to use, you need to first install a corresponding toolchain. The Wiki on RIOT's Github page contains a lot of information that can help you with your platform:
RIOT uses GNU make as build system. The simplest way to compile and link an application with RIOT, is to set up a Makefile providing at least the following variables:
APPLICATION: should contain the (unique) name of your application
BOARD: specifies the platform the application should be build for by default
RIOTBASE: specifies the path to your copy of the RIOT repository (note, that you may want to use
here, to give a relative path)
Additionally it has to include the
Makefile.include, located in RIOT's root directory:
You can use Make's
?= operator in order to allow overwriting variables from the command line. For example, you can easily specify the target platform, using the sample Makefile, by invoking make like this:
Besides typical targets like
doc, RIOT provides the special targets
term to invoke the configured flashing and terminal tools for the specified platform. These targets use the variable
PORT for the serial communication to the device. Neither this variable nor the targets
term are mandatory for the native port.
For the native port,
PORT has a special meaning: it is used to identify the tap interface if the
netdev_tap module is used. The target
debug can be used to invoke a debugger on some platforms. For the native port the additional targets such as
valgrind exist. Refer to
cpu/native/README.md for additional information
Some RIOT directories contain special Makefiles like
Makefile.dep. The first one can be included into other Makefiles to define some standard targets. The files called
Makefile.include are used in
cpu to append target specific information to variables like
INCLUDES, setting the include paths.
Makefile.dep serves to define dependencies.
Unless specified otherwise, make will create an elf-file as well as an Intel hex file in the
bin folder of your application directory.
Learn more about the build system in the Wiki
RIOT provides a number of examples in the
examples/ directory. Every example has a README that documents its usage and its purpose. You can build them by typing
into your shell.
To flash the application to a board just type
You can then access the board via the serial interface:
If you are using multiple boards you can use the
PORT macro to specify the serial interface:
Note that the
PORT macro has a slightly different semantic in
native. Here it is used to provide the name of the TAP interface you want to use for the virtualized networking capabilities of RIOT.
pyterm as the default terminal application. It is shipped with RIOT in the
dist/tools/pyterm/ directory. If you choose to use another terminal program you can set
TERMPROG (and if need be the