it is possible to use thingy 52 firmware on nrf52832 Custom Board?

[sanbon871]

i made custom board refer to thingy 52 Circuit 

all fuction circuit is same so i want to use thingy 52 firmware 

when  i was erase all memory nrf52832 and  upload  thingy_v2.1.0.HW_1.0 file by use nrf52840-dk and  nrfgo studio

 

after upload file i didnt scan thingy.   it is not working.

so erase all memory and  upload bootloader(nrf52832_xxaa_s132.hex) ,  s132_nrf52_4.0.2_softdevice.hex  (except app_thingy_s132.hex)

after then i can scan thingydfu but dfu mode is not woking (not vaild)

and upload app_thingy_s132.hex file  i didnt scan thingy again

must upload thingy 52 defualt bootloader? how can i get default bootloader?

 Generating own packages => OTA-DFU   this way is correct?

If anyone know the solution, please help me

[tesc]

Hi,

If you want do do your own updates (with your own custom OTA DFU packets) then you must build the bootloader yourself. You need to make yourself your own key pair, and build the bootloader with the public key of that key pair. Then you use the private key (which you should keep for yourself) to sign the DFU packet.

See our blogpost, Getting started with Nordic's Secure DFU bootloader, a step by step guide, for an introduction to how to do DFU. The Thingy firmware is built on nRF5 SDK v12.1.0 and you find all firmware projects on the Nordic Thingy:52 downloads page.

Regards,
Terje