Hex file flashing using cli on to the NRF52840 target board.

RE: Hex file flashing using cli on to the NRF52840 target board.

Simonr — Wed, 14 Oct 2020 12:48:51 GMT

1. I just tested this myself by opening the command line in \<SDK_FOLDER>\examples\ble_peripheral\ble_app_hrs_freertos\hex, flashed the application onto the device and reset it with the same commands you did and I can see that it successfully built and starts advertise once reset.

C:\nordicsemi\SDK\nRF5_SDK_17.0.2_d674dde\examples\ble_peripheral\ble_app_hrs_freertos\hex
λ nrfjprog -f NRF52 --program ble_app_hrs_freertos_pca10056_s140.hex --chiperase
Parsing hex file.
Erasing user available code and UICR flash areas.
Applying system reset.
Checking that the area to write is not protected.
Programming device.

C:\nordicsemi\SDK\nRF5_SDK_17.0.2_d674dde\examples\ble_peripheral\ble_app_hrs_freertos\hex
λ nrfjprog -f NRF52 --reset
Applying system reset.
Run.

2. Seeing as you made your own .hex file, you have to merge your application .hex file with a SoftDevice. merge these by writing something like mergehex --merge <hex.file> <hex.file> [<hex.file>] (Hex files to be merged) --output <hex.file> (Hex file result of the merge). This is part of the nRF Command Line Tools, so you shouldn't have to download anything extra.

The SoftDevice.hex files can be found in \<SDK_FOLDER>\components\softdevice.

Best regards,

Simon

EDIT: I see Ivo beat me to it 🙂

RE: Hex file flashing using cli on to the NRF52840 target board.

manoj97 — Wed, 14 Oct 2020 12:32:18 GMT

ivo Thanks for your reply

RE: Hex file flashing using cli on to the NRF52840 target board.

manoj97 — Wed, 14 Oct 2020 12:30:54 GMT

I fixed the bug previously I have used following command

nrfjprog -f NRF52 --program nrf52840_xxaa.hex --chiperase

but instead of "--chiperase" use "--sectorerase"

nrfjprog -f NRF52 --program nrf52840_xxaa.hex --sectorerase

it worked!!!!!!!

https://infocenter.nordicsemi.com/index.jsp?topic=%2Fug_nrf5x_cltools%2FUG%2Fcltools%2Fnrf5x_nrfjprogexe_reference.html

RE: Hex file flashing using cli on to the NRF52840 target board.

Ivo — Wed, 14 Oct 2020 12:11:24 GMT

@manoj97 looks like you may also need to program a SoftDevice HEX file, as in:

nrfjprog -f nrf52 --program s132_nrf52_7.0.1_softdevice.hex