I have downloaded en-i-cube_lrwan for node to node communication, but Lora device is not responding to AT commands

[MJose.10]

i complied the keil code in the following path C:\Users\staff\Downloads\en.i-cube_lrwan\STM32CubeExpansion_LRWAN_V1.2.0\Projects\B-L072Z-LRWAN1\Applications\LoRa\AT_Slave\MDK-ARM\lora.uvprojx file and hex code was created.

C:\Users\staff\Downloads\en.i-cube_lrwan\STM32CubeExpansion_LRWAN_V1.2.0\Projects\B-L072Z-LRWAN1\Applications\LoRa\AT_Slave\MDK-ARM\mlm32l07x01\lora.hex was put into Lora device using flash loader demonstrator.

but the at commands don't work on the devices.

Any help is appreciated.

[Tesla DeLorean]

Use the debugger built onto the board, review the USART and baud rate settings. Watch also that the VCP and shield share some connectivity. Review the schematic. ​