bootloader ISSUE sdk 9

[MARTIN FR]

Hello,

I am trying to understand the basic working principle of the bootloader so i tried the DFU example in the SDK 9 it gets compiled and when i try to flash into the DK it is showing this error so could anyone please tell me what is this error and how to resolve this error and some detailed description about the bootlaoder functionality -- Error: failed to execute 'nrfjprog.exe --family NRF51 --program "C:\Nordic Semiconductor\examples\dfu\bootloader\pca10028\dual_bank_ble_s110\arm5_no_packs_build\nrf51422_xxac.HEX"'

Thankyou

[Vidar Berg]

Please try to add the absolute path to the nrfjprog executable in Keil->options for target -> utilities:

You can download nrfjprog here in case you don't have it installed. The other alternative to using the absolute path is to add the bin directory to your PATH variable.