nRF51 DK board

[Aran r&d]

Hello I have connected the nrF51-DK board and it was recognized by the computer. I have managed to put in in a boot loader mode.

1. Since I switched it to boot loader mode the led, LD5 does not turn on any more, only when I putt the board into boot loader mode again it works. What I am supposed to do to bring it back to normal operation?
2. I have copied an example of ble_app_uart. I have built it with the µVision software. To boot load a program I need a .BIN file. How can I make a .BIN file with the µVision software?

[Hung Bui]

Hi Aran,

I assume the bootloader mode you mentioned is the mode you enter when holding IF BOOT/RESET button when power on the board. That mode is used to switch between Segger Jlink and Mbed interface of the board.

If you want to simply flash the application hex file you should not use this mode. Keep it in the Segger Jlink mode ( when the JLINK driver appear in My Computer as a hard driver). And you can either drag and drop the hex file to JLINK driver or use nRFGo Studio/Keil to program it. Please follow the getting started in the SDK documentation.

If you want to switch between JLINK and MBED, you should use the binary file provided here. Look for nRF51-DK-J-Link-IF and nRF51-DK-mbed-IF in Download tab.