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STMCubeExansion_LRWAN_V2.1.0 > Projects > Type1SJ > Applications > LoRaWAN > LoRaWAN_End_Node > MDK-ARM > LoRaWAN_End_Node.uvprojx
After downloading and installing Keil, open the project with Keil and the following will appear. Click on Build target files or F7 to build the files in Keil. The Build Output Window shows the progress of building the files.
Once build is done, open the following files from the project window by double clicking the selected file as seen below on the left window.
main.h can be found in folder Application/Core > main.c lora_app.h and lorawan_conf.h can be found in folder Application/App > lora_app.c RegionAS923.c can be found in folder Middlewares/LoRaWAN/Mac/Region RegionAS923.h can be found in RegionAS923.c *Note: If RegionAS923.h or any of the files have a yellow key symbol as seen in the figure below, do the following steps below to make it editable.
Right click on the RegionAS923.h tab and click Open Containing Folder. Right click on the RegionAS923.h file inside File Explorer and click Properties. Uncheck the Read-only check box and click Apply to make it editable inside Keil.