View source for How to build a LoRaWAN gateway

== Building the software image ==
First set up the LoRaWAN gateway build environment:
 {{PC$}} cd <Distribution Package installation directory>
Different OpenSTLinux expansion packages are available to target different use cases. The following commands need to be executed in the build environment.<br>
'''You can choose between two different machines:'''
* {{highlight|stm32mp1-lorawan-a7}} to use only the Arm Cortex-A7 core for the whole application process:
 {{PC$}} DISTRO=openstlinux-weston MACHINE='''stm32mp1-lorawan-a7''' source layers/meta-st/scripts/envsetup.sh
 {{PC$}} bitbake st-image-lorawan
* {{highlight|stm32mp1-lorawan-m4}} to use both the Arm Cortex-A7 and Cortex-M4 cores, the Arm Cortex-A7 managing the communications with TheThingsNetwork server and the Arm Cortex-M4 the real-time communications with the concentrator:
 {{PC$}} DISTRO=openstlinux-weston MACHINE='''stm32mp1-lorawan-m4''' source layers/meta-st/scripts/envsetup.sh
 {{PC$}} bitbake st-image-lorawan
{{Info|Note that building the image can take more than two hours depending on your host computer performance. }}