========================== Sparkfun nRF52832 Breakout ========================== The `Sparkfun nRF52832 Breakout `_ is basic board providing access to all I/O pins, a 32kHz crystal and LED. .. figure:: board.jpg :align: center :width: 50% Sparkfun nRF52832 Breakout Features ======== - nRF52832 MCU (QFAAB0), 512K FLASH and 64 SRAM - Reset and user button - Power LED (blue) and user LED (red) - 32768 Hz crystal - NFC antenna connection pads - Cortex Debug connector - UART + SWD header Pin Mapping =========== ===== =========== ========== Pin Signal Notes ===== =========== ========== P0.06 User Button Active LOW P0.07 User LED Active LOW P0.26 UART TXO P0.27 UART RXI ===== =========== ========== Configurations ============== nsh --- Basic NuttShell configuration (console enabled in UART0, at 115200 bps). Flash & Debug ============= An external debugger is required, so the procedure to flash/debug depends on the chosen interface. Using an ST-Link V2 you can flash using OpenOCD with:: openocd -f interface/stlink-v2.cfg -f target/nrf52.cfg -c "program nuttx/nuttx.bin 0x0000000 verify reset; shutdown"