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RIOT/boards/nrf51dk/doc.md
krzysztof-cabaj 6f6bd026e5 boards: rename doc.txt -> doc.md for nrf boards
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@defgroup boards_nrf51dk nRF51DK Development Kit @ingroup boards @brief Support for the Nordic nRF51DK Development Kit

Overview:

The nRF51 DK is a low-cost, versatile single-board development kit for Bluetooth low energy, ANT and 2.4GHz proprietary applications using the nRF51 Series SoC.

Flashing the Device:

The nRF51DK board is shipped with an on-board JLink debugger that doesn't work well with UART: the shell is only working on RX but not TX.

Thus, we recommend to update the flasher ship with DAPLink as described here:

  1. Download and extract this release package
  2. While holding down the boards reset button, connect the boards USB debug port to the computer. It should enumerate as BOOTLOADER
  3. Using a filesystem browser, drag-n-drop the firmware 0251_sam3u2c_mkit_dk_dongle_nrf5x_0x5000.bin file to the BOOTLOADER folder
  4. Power-cycle the board, a new DAPLink mount point should appear

The programmer used to flash this board is OpenOCD.

To flash the board, use the following command:

$ make BOARD=nrf51dk flash

from any application directory.