Hi all,
i am trying to update the nrf5340 firmware using STM32 as the master controller via UART. i initially tried to upload the .bin file of my project to nrf5340 using MCUmgr tool and it was successful. so i tried to incorporate the SMP (simple Management Protocol) using STM32 as a client, which is used in sending the commands to nrf3540 ( which acts as the SMP server) to upload the firmware. however, i failed to implement it since i could not get proper data packeting and encoding format. can anyone say if there is any other approach to upload the firmware into nrf5340 from a master controller using UART rather than SMP protocol.