How to use the nRF Loader to do OTA

[Alice]

Hi all,

Now I'm using the nRF51822 DK and nRF Loader APP do the OTA.I can use the APP to complete the firmware update.However,the device cann't go back to bootloader mode when I press the button 7 while power up again.I try many times but still the same. I use the Master Control Pannel to do the OTA and I wouldn't meet the problem.

Besides,if I want to use iPhone and other .hex(not HRM or RSCS in APP) file to do the OTA,how to do it?

Thanks

[Ole Morten]

The nRF Loader can open files from other apps (e-mail, dropbox or similar) but only raw binary files, not hex files. To convert a hex or axf to binary, you can use for example the fromelf tool in C:\Keil\ARM\BIN40:

C:\Keil\ARM\BIN40\fromelf.exe ble_app_hrs.axf --output ble_app_hrs.bin --bin

After this, you can for example upload this binary file to your Dropbox or e-mail it to yourself, and then open the binary with nRF Loader to upload it to your development kit.

[steven]

At uVison 4.7 is C:\Keil\ARM\ARMCC\bin>fromelf.exe --bin --output=ble_rc.bin C:\Keil\ARM\Device\Nordic\nrf51822\Board\nrf6310\s110\ble_app_rc\arm_build\ble_app_template.axf