The gr-pus OOT package incorporates the Packet Utilization Services ECSS-E-ST-70-41C interfaces and services into GNURadio.

Additional ad-hoc (application specific) services could easily be added later as OOT blocks.

The folder docs includes a document with the description and the user manual, in addition there is a sheet document with QA test cases tracking

This implementation is based in the AcubaSat one (https://github.com/AcubeSAT/ecss-services), but adapted to GNURadio and including full verification support, additional service types and message types.

Because this package is for GNURadio and Linux, it is not intented to be a "flight software" as so. The "Flight software", as any critical softare, has a set of specific requirements, but those requirements have a clear objetive, and knowing the risks you could deviate them.

I found out that for certain cases where the risk is very low, it is far better to use Linux as O/S in a SoC instead of "flight" O/S such as RTEMS (which, by the way, the v3.10+ is not a "flight software" neither!) or Vxworks. Linux will simplify (time, money, etc) the development and testing process (no special tools, simulators, knowledge will be required!).

gr-pus is aimed to such cases (ie: SDR instruments)!

GNURadio 3.10 is required for this installation

Install the Embed Template Library:

git clone https://github.com/ETLCPP/etl.git
cd etl
git checkout <targetVersion>
cmake -B build .
sudo cmake --install build/

Install pySerial for the serial port block helper

pip3 install pyserial

or

sudo apt-get update -y
sudo apt install python3-serial

Install nlohmann for json parsing:

sudo apt-get update –y
sudo apt-get install -y nlohmann-json-dev

Configure the gr-pus restrains and limitations according to your needs editing the file:

gr-pus/include/gnuradio/pus/Definitions/ECSS_Definitions.h

And then install gr-pus:

git clone https://github.com/gjg/gr-pus.git
cd gr-pus
mkdir build 
cd build
cmake ..
make
sudo make install
sudo ldconfig