Laird Connectivity BL652 DVK¶
Overview¶
The BL652 Development Kit hardware provides support for the Laird Connectivity BL652 module powered by a Nordic Semiconductor nRF52832 ARM Cortex-M4F CPU.
This development kit has the following features:
ADC
CLOCK
FLASH
GPIO
I2C
MPU
NVIC
PWM
RADIO (Bluetooth Low Energy)
RTC
Segger RTT (RTT Console)
SPI
UART
WDT
Available BL652 DVK part numbers:
DVK-BL652-SA
DVK-BL652-SC
BL652 DVK Board¶
BL652-SA DVK Box Contents¶
More information about the board can be found at the BL652 Module Website 1.
Hardware¶
Supported Features¶
The BL652 DVK board configuration supports the following hardware features:
Interface |
Controller |
Driver/Component |
|---|---|---|
ADC |
on-chip |
adc |
CLOCK |
on-chip |
clock_control |
FLASH |
on-chip |
flash |
GPIO |
on-chip |
gpio |
I2C(M) |
on-chip |
i2c |
MPU |
on-chip |
arch/arm |
NVIC |
on-chip |
arch/arm |
PWM |
on-chip |
pwm |
RADIO |
on-chip |
Bluetooth |
RTC |
on-chip |
system clock |
RTT |
Segger |
console |
SPI(M/S) |
on-chip |
spi |
UART |
on-chip |
serial |
WDT |
on-chip |
watchdog |
Other hardware features are not supported by the Zephyr kernel. See BL652 Module Website 1.
Connections and IOs¶
LED¶
LED1 (blue) = P0.17
LED2 (blue) = P0.19
Push buttons¶
BUTTON1 = SW1 = P0.11
BUTTON2 = SW2 = P0.15
Reset = SW3 = boot/reset
External Connectors¶
Arduino Headers¶
J33/J23 Power
PIN # |
Signal Name |
NRF52832 Functions |
|---|---|---|
1 |
NC |
N/A |
2 |
IOREF (3v3) |
N/A |
3 |
RESET |
P0.21 / RESET |
4 |
3v3 |
N/A |
5 |
5V |
N/A |
6 |
GND |
N/A |
7 |
GND |
N/A |
8 |
VIN (12V) |
N/A |
J31/J16 Analog in
PIN # |
Signal Name |
NRF52832 Functions |
|---|---|---|
1 |
A0 |
P0.03 / AIN1 |
2 |
A1 |
P0.04 / AIN2 |
3 |
A2 |
P0.28 / AIN4 |
4 |
A3 |
P0.29 / AIN5 |
5 |
A4 |
P0.30 / AIN6 |
6 |
A5 |
P0.31 / AIN7 |
J30/J15 Digital I/O
PIN # |
Signal Name |
NRF52832 Functions |
|---|---|---|
1 |
D0 (RX) |
P0.11 |
2 |
D1 (TX) |
P0.12 |
3 |
D2 |
P0.13 |
4 |
D3 |
P0.14 / TRACEDATA[3] |
5 |
D4 |
P0.15 / TRACEDATA[2] |
6 |
D5 |
P0.16 / TRACEDATA[1] |
7 |
D6 |
P0.17 |
8 |
D7 |
P0.18 / TRACEDATA[3] / SWO |
J32/J22 Digital I/O
PIN # |
Signal Name |
NRF52832 Functions |
|---|---|---|
1 |
D8 |
P0.19 |
2 |
D9 |
P0.20 / TRACECLK |
3 |
D10 (SS) |
P0.22 |
4 |
D11 (MOSI) |
P0.23 |
5 |
D12 (MISO) |
P0.24 |
6 |
D13 (SCK) |
P0.25 |
7 |
GND |
N/A |
8 |
AREF |
P0.02 / AIN0 |
9 |
SDA |
P0.26 |
10 |
SCL |
P0.27 |
Programming and Debugging¶
Flashing¶
Follow the instructions in the Nordic nRF5x Segger J-Link page to install and configure all the necessary software. Further information can be found in Flashing. Then build and flash applications as usual (see Building an Application and Run an Application for more details).
Here is an example for the Hello World application.
First, run your favorite terminal program to listen for output.
NOTE: On the BL652 DVK, the FTDI USB should be used to access the UART console.
$ minicom -D <tty_device> -b 115200
Replace <tty_device> with the port where the BL652 DVK
can be found. For example, under Linux, /dev/ttyUSB0.
Then build and flash the application in the usual way.
# From the root of the zephyr repository
west build -b bl652_dvk samples/hello_world
west flash
Debugging¶
Refer to the Nordic nRF5x Segger J-Link page to learn about debugging Nordic based boards with a Segger IC.
Testing Bluetooth on the BL652 DVK¶
Many of the Bluetooth examples will work on the BL652 DVK. Try them out:
Testing the LEDs and buttons in the BL652 DVK¶
There are 2 samples that allow you to test that the buttons (switches) and LEDs on the board are working properly with Zephyr:
You can build and flash the examples to make sure Zephyr is running correctly on your board. The button and LED definitions can be found in boards/arm/bl652_dvk/bl652_dvk.dts.