EEL7415/7515 - IoT LoRa

This branch contains the firmware for EEL7415/7515 courses, which is based on I-CUBE-LRWAN project. The LoRaWAN stack version is 1.0.3. The build system is composed by GNU ARM-Toolchain.

Folders structure

├── Bin                   # Binary files.
├── Docs                  # Boards usefull files.
├── Drivers               # Sensors and HAL drivers.
├── Middlewares           # LoRaWAN stack.
├── Projects              # Main source code and Makefile
└── ...

Prerequisites

It is highly recommended to use Linux Ubuntu version 18+ to compile the project.

• GNU ARM-Toolchain (tested with versions 6.3.1 and 7.3.1)

$ sudo apt-get install gcc-arm-none-eabi

• Make

$ sudo apt-get install make

Compiling the code

Go to the folder that contains the Makefile file:

$ cd Projects/B-L072Z-LRWAN1/Applications/LoRa/End_Node/gcc/B-L072Z-LRWAN1/

To compile:

$ make

The binary file will be located in the same folder. To clean the build files, use: make clean.

Flashing the binary

To upload the firmware to the board, just copy the binary file to the USB device created when the B-L072Z-LRWAN1 is connected to the computer.

Using the command line, this can be performed as:

$ cp end_node.bin /media/$your_user_name$/DIS_L072Z

Visualizing the messages through Serial

The UART interface is used to debug with prints. To access this interface, install the Cutecom program:

$ sudo apt-get install cutecom

To open the software:

$ sudo cutecom

The baudrate should be configured as 115200 bps.

Updating the code

The most relevant files are:

• Projects/B-L072Z-LRWAN1/Applications/LoRa/End_Node/LoRaWAN/App/src/main.c: project main application. This file contains #define that can be used to change some device configurations. It also has the functions of LoRaWAN parameters configuration, payload creation, stack callbacks and a FSM to handle the project routines.

• Projects/B-L072Z-LRWAN1/Applications/LoRa/End_Node/LoRaWAN/App/inc/Commissioning.h: file where the device keys, address and activation mode (ABP or OTAA) can be configured.