RE: Bootloader resets after switching to DFU

Edvin — Tue, 02 Feb 2021 15:11:54 GMT

Hello,

I don't know what SDK you are using, but have you tried to run the debug bootloader project? In SDK17.0.2 that would be:

SDK\examples\dfu\secure_bootloader\pca10040_s132_ble_debug\<your IDE>

Does the log say anything?

If not, try adding the this to the log, after nrf_dfu_req_handler_init(dfu_observer);

    ret_val = nrf_dfu_req_handler_init(dfu_observer);
    NRF_LOG_INFO("nrf_dfu_req_handler_init() returned %02x", ret_val);

What does it return? Are you able to debug and figure out where inside nrf_dfu_req_handler_init() this is returned?

Best regards,

Edvin