nRF52832-DK

Tags: chip:nrf52 chip:nrf52832

The NRF52832-DK (PCA10040) is a development board for the nRF52832 SoC from Nordic.

Serial Console

The PCA10040 default console is the UART0.

The PCA10040 does not have RS-232 drivers or serial connectors on board. UART0 is connected to the virtual COM port:

Signal	PIN
UART0-RX	P0.08
UART0-TX	P0.06

LEDs and Buttons

LEDs

The PCA10040 has 4 user-controllable LEDs:

LED	MCU
LED1	P0.17
LED2	P0.18
LED3	P0.19
LED4	P0.20

A low output illuminates the LED.

CONFIG_ARCH_LEDS

If CONFIG_ARCH_LEDS is not defined, then the LEDs are completely under control of the application. The following interfaces are then available for application control of the LEDs:

uint32_t board_userled_initialize(void);
void board_userled(int led, bool ledon);
void board_userled_all(uint32_t ledset);

Pushbuttons

BUTTON	MCU
BUTTON1	P0.13
BUTTON2	P0.14
BUTTON3	P0.15
BUTTON4	P0.16

Configurations

Each configuration is maintained in a sub-directory and can be selected as follow:

tools/configure.sh nrf52832-dk:<subdir>

Where <subdir> is one of the following:

jumbo

This configuration enables many Apache NuttX features. This is mostly to help provide additional code coverage in CI, but also allows for a users to see a wide range of features that are supported by the OS.

nsh

Basic NuttShell configuration (console enabled in UART0, exposed via J-Link VCOM connection, at 115200 bps).

ostest_tickless

This is a NSH configuration that includes apps/testing/ostest as a builtin and enable support for the tick-less OS.

sdc

Enables Nordic’s SoftDevice controller and uses NuttX BLE stack for the host-layer. The btsak application is included as a builtin.

sdc_nimble

Enables Nordic’s SoftDevice controller and uses nimBLE for the host-layer. The nimble test application can be used to enable a simple GATT server.

nxscope_rtt

Configuration demonstrating NxScope stream over Segger RTT interface.

A total of 3 RTT channels are configured:

RTT channel	Function	Up buffer size	Down buffer size
0	serial console	1024	16
1	SystemView	2048	0
2	NxScope interface	2048	128

See nxscope NxScope library example and NxScope Library for more details.

Device detection with nxscli client:

$ nxscli rtt nRF52832_XXAA 2 2048 pdevinfo
Auto-search for RTT block address
JLink interface is SWD
connecting to nRF52832_XXAA ...
connected, starting RTT...
RTT started, 3 up bufs, 3 down bufs.
INFO:nxscli:enable (0, <class 'nxscli.plugins.devinfo.PluginDevinfo'>, {})
INFO:nxscli:connecting to nxs device...
INFO:nxscli:connected!
INFO:nxscli:started <nxscli.plugins.devinfo.PluginDevinfo object at 0x7f4a3a4d2270>

Device Summary
  Channels:         32
  Divider support:  yes
  Ack support:      no
  Flags:            0x01
  RX padding:       0

Stream
  Connected:        yes
  Started:          no
  Overflow count:   0
  Bitrate:          0.0 B/s

Channel State
  Applied enabled:  none
  Buffered enabled: none

Channels
+----+--------+--------+-----+-------+----+-----+
| ID | Name   | Type   | Dim | Valid | En | Div |
+====+========+========+=====+=======+====+=====+
|  0 | chan0  | UINT8  |   1 | yes   | no |   0 |
|  1 | chan1  | INT8   |   1 | yes   | no |   0 |
|  2 | chan2  | UINT16 |   1 | yes   | no |   0 |
|  3 | chan3  | INT16  |   1 | yes   | no |   0 |
|  4 | chan4  | UINT32 |   1 | yes   | no |   0 |
|  5 | chan5  | INT32  |   1 | yes   | no |   0 |
|  6 | chan6  | UINT64 |   1 | yes   | no |   0 |
|  7 | chan7  | INT64  |   1 | yes   | no |   0 |
|  8 | chan8  | FLOAT  |   1 | yes   | no |   0 |
|  9 | chan9  | DOUBLE |   1 | yes   | no |   0 |
| 10 | chan10 | UB8    |   1 | yes   | no |   0 |
| 11 | chan11 | B8     |   1 | yes   | no |   0 |
| 12 | chan12 | UB16   |   1 | yes   | no |   0 |
| 13 | chan13 | B16    |   1 | yes   | no |   0 |
| 14 | chan14 | UB32   |   1 | yes   | no |   0 |
| 15 | chan15 | B32    |   1 | yes   | no |   0 |
| 16 | chan16 | FLOAT  |   3 | yes   | no |   0 |
| 17 | chan17 | FLOAT  |   3 | yes   | no |   0 |
| 18 | chan18 | NONE   |   0 | yes   | no |   0 |
| 19 | -      | UNDEF  |   0 | no    | no |   0 |
| 20 | -      | UNDEF  |   0 | no    | no |   0 |
| 21 | -      | UNDEF  |   0 | no    | no |   0 |
| 22 | -      | UNDEF  |   0 | no    | no |   0 |
| 23 | -      | UNDEF  |   0 | no    | no |   0 |
| 24 | -      | UNDEF  |   0 | no    | no |   0 |
| 25 | -      | UNDEF  |   0 | no    | no |   0 |
| 26 | -      | UNDEF  |   0 | no    | no |   0 |
| 27 | -      | UNDEF  |   0 | no    | no |   0 |
| 28 | -      | UNDEF  |   0 | no    | no |   0 |
| 29 | -      | UNDEF  |   0 | no    | no |   0 |
| 30 | -      | UNDEF  |   0 | no    | no |   0 |
| 31 | -      | UNDEF  |   0 | no    | no |   0 |
+----+--------+--------+-----+-------+----+-----+

closing...
INFO:nxscli:disconnecting from nxs device...
INFO:nxscli:disconnected!

nxscope_uart

Configuration demonstrating NxScope stream over USART interface. It uses UART0 connected to J-Link VCOM for NxScope, and 2 RTT channels for debug purposes are enabled:

RTT channel	Function	Up buffer size	Down buffer size
0	serial console	1024	16
1	SystemView	2048	0

See nxscope NxScope library example and NxScope Library for more details.