nRF52 DK

Support for the nRF52 DK. More...

Detailed Description

Support for the nRF52 DK.

Overview:

There are some nameless simple development Boards with an nRF52832 available. These boards providing access to most SoC ports. There are two buttons (RST, KEY), two LED’s (Pin 30, 31), a voltage regulator and a current messurment shunt on board. A serial connection and flashing must be provided by external Hardware.

The nRF52832 is a SoC with a 32-bit ARM® Cortex™-M4F CPU with 512kB Flash and 64kB RAM. The embedded 2.4GHz transceiver supports Bluetooth low energy, ANT and proprietary 2.4 GHz protocol stack. It is on air compatible with the nRF51 Series, nRF24L and nRF24AP Series products from Nordic Semiconductor.

Hardware:

nRF52 minimal development
board
MCU NRF52832
Family ARM Cortex-M4F
Vendor Nordic Semiconductor
RAM 64Kb
Flash 512Kb
Frequency 64MHz
FPU yes
Timers 5 (32-bit)
RTC 3
ADCs 1x 12-bit (8 channels)
UARTs 1
SPIs 3
I2Cs 2
I2S 1
PWM 3*4 Channels
Radio 2.4GHz BLE compatiple, -20 dBm to +4 dBm output, -96 dBm RX sensitivity
Vcc 1.7V - 3.6V
Datasheet Datasheet
Reference Manual Reference Manual

Pin layout

MCU pinBoard pinFunction
P0.0n.c.
P0.1n.c.
P0.2D07
P0.3D08
P0.4D09 KEY
P0.5D10
P0.6D13
P0.7D14
P0.8D15
P0.9n.c.
P0.10n.c. NFC antenna 2 (unusable)
P0.11D18 RXD (software defined)
P0.12D19 TXD (software defined)
P0.13D20
P0.14D21
P0.15D22
P0.16D23
P0.17D24
P0.18D25
P0.19D26
P0.20D27
P0.21RST RESET
P0.22D28 near Radio! -> Low drive, low frequency I/O only.
P0.23D29 near Radio! -> Low drive, low frequency I/O only.
P0.24D30 near Radio! -> Low drive, low frequency I/O only.
P0.25D00 near Radio! -> Low drive, low frequency I/O only.
P0.26D01 near Radio! -> Low drive, low frequency I/O only.
P0.27D02 near Radio! -> Low drive, low frequency I/O only.
P0.28D03 near Radio! -> Low drive, low frequency I/O only.
P0.29D04 near Radio! -> Low drive, low frequency I/O only.
P0.30D05 LED0, near Radio! -> Low drive, low frequency I/O only.
P0.31D06 LED1, near Radio! -> Low drive, low frequency I/O only.
V33 3.3V for MCU
D16 ?
D17 ?
VBUS 5V input
GND
RXD n.c.
TXD n.c.
TD0 n.c.
TD1 n.c.
SWDIO TMS
SWCLK TCK

Caution**: NFC is not usable with this board.

Current measurement:

There are two pins for current measurement on board. Don't connect these pins to GND!. The left pin is at 3.3V level and the right pin is connected to V33. Divide the measured voltage between this pins by 22 to get the current.

Files

file  boards/nrf52dk/include/board.h
 Board specific configuration for the nRF52 DK.