Remote DFU: Operation Failed Error in Secure OTA

[Nilesh Bhavsar]

Hi,

I am trying to secure OTA in nrf51822 board.

For that trying to build bootloader file available in SDK 12.2.0 version at location nRF5_SDK_12.2.0_f012efa\examples\dfu\bootloader_secure\pca10028_debug\arm5_no_packs. But it is building perfectly and give me error of micro_ecc_lib_nrf51.lib file not found error.

i have already installed 4.9-2015-q3-update of the GCC compiler toolchain for ARM and put uECC.h file in external/micro-ecc/micro-ecc file.

[Hung Bui]

What do you mean by "add external flash for programming" ?