Differences between .hex files nRF52

[Butu]

Hi All,

I have a problem with .hex file. I use example ble_app_uart from nRF5_SDK. In examples\ble_peripheral\ble_app_uart\pca10056\s140\armgcc I executed: make all and _build folder was created. Unfortunately when I load nrf52840_xxaa.hex from _build folder, this example do not run. On the other hand when I load ble_app_uart_pca10056_s140.hex from ble_peripheral\ble_app_uart\hex, everything is good. During compilation I get an incomplete hex file.

Someone had such a problem? What could be the reason?

[Daniel Wang]

Sounds like you have forgot to flash the S140 softdevice. You have only built and flashed/loaded the application, but you also need to flash the S140 softdevice(the BLE stack) to the chip

[Butu]

Could you tell me how can I do it ? I am compiling example using MakeFile

[Daniel Wang]

Use nRFGo Studio if you want a GUI: www.nordicsemi.com/.../nRFgo-Studio

Commandline: use nrfjprog

infocenter.nordicsemi.com/.../nrf5x_nrfjprogexe.html

[Butu]

I did this: https://ibb.co/m8dEu5 also: https://ibb.co/nHFcE5 It stil does not run. Any suggestions?

But for example "blinky" everthing is good. Only for examples from ble_peripherial I have problems.

[Daniel Wang]

Did you flash the softdevice hex? its located in sdkfolder\components\softdevice\s140\hex

[Daniel Wang]

Try nrfgo studio, and see if the softdevice is on the chip