BL653 DVK
Overview
The BL653 Development Kit (453-00039-K1, 453-00041-K1) hardware provides support for the Ezurio BL653 module powered by a Nordic Semiconductor nRF52833 ARM Cortex-M4F CPU.
This development kit has the following features:
ADC
CLOCK
FLASH
GPIO
I2C
MPU
NVIC
PWM
RADIO (Bluetooth Low Energy and 802.15.4)
RTC
Segger RTT (RTT Console)
SPI
UART
USB
WDT
More information about the board can be found at the BL653 website [1].
Hardware
Supported Features
The bl653_dvk board supports the hardware features listed below.
- on-chip / on-board
- Feature integrated in the SoC / present on the board.
- 2 / 2
-
Number of instances that are enabled / disabled.
Click on the label to see the first instance of this feature in the board/SoC DTS files. -
vnd,foo -
Compatible string for the Devicetree binding matching the feature.
Click on the link to view the binding documentation.
bl653_dvk/nrf52833 target
Type |
Location |
Description |
Compatible |
|---|---|---|---|
CPU |
on-chip |
ARM Cortex-M4F CPU1 |
|
ADC |
on-chip |
Nordic Semiconductor nRF family SAADC node1 |
|
ARM architecture |
on-chip |
Nordic UICR (User Information Configuration Registers)1 |
|
on-chip |
Nordic EGU (Event Generator Unit)6 |
||
on-chip |
Nordic nRF family ACL (Access Control List)1 |
||
on-chip |
Nordic nRF family MWU (Memory Watch Unit)1 |
||
Audio |
on-chip |
Nordic PDM (Pulse Density Modulation interface)1 |
|
Clock control |
on-chip |
Nordic nRF clock control node1 |
|
Comparator |
on-chip |
Nordic nRF COMP (analog COMParator)1 |
|
Counter |
on-chip |
Nordic nRF timer node5 |
|
Cryptographic accelerator |
on-chip |
Nordic ECB (AES electronic codebook mode encryption)1 |
|
on-chip |
Nordic nRF family CCM (AES CCM mode encryption)1 |
||
DAC |
on-board |
Microchip MCP4725 12-bit DAC1 |
|
Debug |
on-chip |
ARMv7 instrumentation trace macrocell1 |
|
Flash controller |
on-chip |
Nordic NVMC (Non-Volatile Memory Controller)1 |
|
GPIO & Headers |
on-chip |
NRF5 GPIOTE1 |
|
on-chip |
NRF5 GPIO2 |
||
I2C |
on-chip |
Nordic nRF family TWI (TWI master)1 |
|
on-chip |
Nordic nRF family TWIM (TWI master with EasyDMA)1 |
||
I2S |
on-chip |
Nordic I2S (Inter-IC sound interface)1 |
|
IEEE 802.15.4 |
on-chip |
Nordic nRF IEEE 802.15.4 node1 |
|
Input |
on-board |
Group of GPIO-bound input keys1 |
|
Interrupt controller |
on-chip |
ARMv7-M NVIC (Nested Vectored Interrupt Controller)1 |
|
LED |
on-board |
Group of GPIO-controlled LEDs1 |
|
Miscellaneous |
on-chip |
Nordic FICR (Factory Information Configuration Registers)1 |
|
on-chip |
Nordic nRF family PPI (Programmable Peripheral Interconnect)1 |
||
MTD |
on-chip |
Flash node1 |
|
on-board |
Fixed partitions of a flash (or other non-volatile storage) memory1 |
||
Networking |
on-chip |
Nordic nRF family RADIO peripheral1 |
|
on-chip |
Nordic nRF family NFCT (Near Field Communication Tag)1 |
||
Pin control |
on-chip |
The nRF pin controller is a singleton node responsible for controlling pin function selection and pin properties1 |
|
Power management |
on-chip |
Nordic nRF power control node1 |
|
PWM |
on-chip |
||
on-chip |
nRFx S/W PWM1 |
||
Regulator |
on-chip |
Nordic nRF5X regulator (fixed stage of the core supply)1 |
|
on-chip |
Nordic nRF52X regulator (high voltage stage of the main supply)1 |
||
Retained memory |
on-chip |
Nordic GPREGRET (General Purpose Register Retention) device2 |
|
RNG |
on-chip |
Nordic nRF family RNG (Random Number Generator)1 |
|
RTC |
on-board |
Microchip MCP7940N I2C RTC with battery-backed SRAM1 |
|
on-chip |
Nordic nRF RTC (Real-Time Counter)3 |
||
Sensors |
on-chip |
Nordic nRF family TEMP node1 |
|
on-chip |
Nordic nRF quadrature decoder (QDEC) node1 |
||
Serial controller |
on-chip |
Nordic nRF family UART1 |
|
on-chip |
Nordic nRF family UARTE (UART with EasyDMA)1 |
||
SPI |
on-chip |
Nordic nRF family SPIM (SPI master with EasyDMA)3 |
|
on-chip |
Nordic nRF family SPI (SPI master)1 |
||
SRAM |
on-chip |
Generic on-chip SRAM description1 |
|
Timer |
on-chip |
ARMv7-M System Tick1 |
|
USB |
on-chip |
Nordic nRF52 USB device controller1 |
|
Watchdog |
on-chip |
Nordic nRF family WDT (Watchdog Timer)1 |
See BL653 website [1] for a complete list of BL653 Development Kit board hardware features.
Connections and IOs
LED
LED1 (blue) = P0.13
LED2 (blue) = P0.14
LED3 (blue) = P0.15
LED4 (blue) = P0.16
Programming and Debugging
Applications for the bl653_dvk board configuration can be built, flashed,
and debugged in the usual way. See Building an Application and
Run an Application for more details on building and running.
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 BL653 development board, 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 BL653 development kit
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 bl653_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 BL653 DVK
Many of the Bluetooth examples will work on the BL653 DVK. Try them out:
Using UART1
The following approach can be used when an application needs to use more than one UART for connecting peripheral devices:
Add devicetree overlay file to the main directory of your application:
&pinctrl { uart1_default: uart1_default { group1 { psels = <NRF_PSEL(UART_TX, 0, 14)>, <NRF_PSEL(UART_RX, 0, 16)>; }; }; /* required if CONFIG_PM_DEVICE=y */ uart1_sleep: uart1_sleep { group1 { psels = <NRF_PSEL(UART_TX, 0, 14)>, <NRF_PSEL(UART_RX, 0, 16)>; low-power-enable; }; }; }; &uart1 { compatible = "nordic,nrf-uarte"; current-speed = <115200>; status = "okay"; pinctrl-0 = <&uart1_default>; pinctrl-1 = <&uart1_sleep>; pinctrl-names = "default", "sleep"; };
In the overlay file above, pin P0.16 is used for RX and P0.14 is used for TX
Use the UART1 as
DEVICE_DT_GET(DT_NODELABEL(uart1))
See Set devicetree overlays for further details.
Selecting the pins
Pins can be configured in the board pinctrl file. To see the available mappings, open the nRF52833 Product Specification [2], chapter 7 ‘Hardware and Layout’. In the table 7.1.1 ‘aQFN73 ball assignments’ select the pins marked ‘General purpose I/O’. Note that pins marked as ‘low frequency I/O only’ can only be used in under-10KHz applications. They are not suitable for 115200 speed of UART.