u-blox EVK-BMD-330: BMD-330-EVAL¶
Overview¶
The BMD-330-EVAL hardware provides support for the u-blox BMD-330 Bluetooth 5 module, based on The Nordic Semiconductor nRF52810 ARM Cortex-M4 CPU and the following devices:
ADC
CLOCK
FLASH
GPIO
I2C
MPU
NVIC
PWM
RADIO (Bluetooth Low Energy)
RTC
Segger RTT (RTT Console)
SPI
UART
WDT
BMD-300-EVAL (Credit: u-blox AG)¶
Note
The BMD-330-EVAL shares the same pin headers and assignments as the BMD-300-EVAL. The BMD-300-EVAL is shown here.
More information about the BMD-330-EVAL and the BMD-330 module can be found at the u-blox website 1. All of the Nordic Semiconductor examples for the nRF52 DK (nrf52dk_nrf52810) may be used without modification.
Hardware¶
The BMD-330 on the BMD-330-EVAL contains an internal high-frequency oscillator at 32MHz. There is also a low frequency (slow) oscillator of 32.768kHz. The BMD-330 itself does not include the slow crystal; however, the BMD-330-EVAL does.
Note
When targeting a custom design without a slow crystal, be sure to modify code to utilize the internal RC oscillator for the slow clock.
Supported Features¶
The BMD-330-EVAL 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 the u-blox website 1 for a complete list of BMD-330-EVAL hardware features.
Connections and IOs¶
LED¶
LED1 (red) = P0.17
LED2 (red) = P0.18
LED3 (green) = P0.19
LED4 (green) = P0.20
D5 (red) = OB LED 1
D6 (green) = OB LED 2
Push buttons¶
BUTTON1 = SW1 = P0.13
BUTTON2 = SW2 = P0.14
BUTTON3 = SW3 = P0.15
BUTTON4 = SW4 = P0.16
BOOT = SW5 = boot/reset
External Connectors¶
BMD-300-EVAL pin-out (Credit: u-blox AG)¶
Note
The BMD-330-EVAL shares the same pin headers and assignments as the BMD-300-EVAL. The BMD-300-EVAL is shown here.
Note
The pin numbers noted below are referenced to the pin 1 markings on the BMD-330-EVAL for each header
J-Link Prog Connector (J2)
PIN # |
Signal Name |
|---|---|
1 |
VDD |
2 |
IMCU_TMSS |
3 |
GND |
4 |
IMCU_TCKS |
5 |
V5V |
6 |
IMCU_TDOS |
7 |
Cut off |
8 |
IMCU_TDIS |
9 |
Cut off |
10 |
IMCU_RESET |
Debug OUT (J3)
PIN # |
Signal Name |
|---|---|
1 |
EXT_VTG |
2 |
EXT_SWDIO |
3 |
GND |
4 |
EXT_SWDCLK |
5 |
GND |
6 |
EXT_SWO |
7 |
N/C |
8 |
N/C |
9 |
EXT_GND_DETECT |
10 |
EXT_RESET |
Auxiliary (J9)
PIN # |
Signal Name |
|---|---|
1 |
P0.10 |
2 |
P0.09 |
3 |
P0.08 |
4 |
P0.07 |
5 |
P0.06 |
6 |
P0.05 / AIN3 |
7 |
P0.21 / RESET |
8 |
P0.01 / XL2 |
9 |
P0.00 / XL1 |
10 |
GND |
Arduino Headers¶
Power (J5)
PIN # |
Signal Name |
BMD-330 Functions |
|---|---|---|
1 |
VSHLD |
N/A |
2 |
VSHLD |
N/A |
3 |
RESET |
P0.21 / RESET |
4 |
VSHLD |
N/A |
5 |
V5V |
N/A |
6 |
GND |
N/A |
7 |
GND |
N/A |
8 |
N/C |
N/A |
Analog in (J8)
PIN # |
Signal Name |
BMD-330 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 |
Digital I/O (J7)
PIN # |
Signal Name |
BMD-330 Functions |
|---|---|---|
1 |
D7 |
P0.18 |
2 |
D6 |
P0.17 |
3 |
D5 |
P0.16 |
4 |
D4 |
P0.15 |
5 |
D3 |
P0.14 |
6 |
D2 |
P0.13 |
7 |
D1 (TX) |
P0.12 |
8 |
D0 (RX) |
P0.11 |
Digital I/O (J6)
PIN # |
Signal Name |
BMD-330 Functions |
|---|---|---|
1 |
SCL |
P0.27 |
2 |
SDA |
P0.26 |
3 |
AREF |
P0.02 / AIN0 |
4 |
GND |
N/A |
5 |
D13 (SCK) |
P0.25 |
6 |
D12 (MISO) |
P0.24 |
7 |
D11 (MOSI) |
P0.23 |
8 |
D10 (SS) |
P0.22 |
9 |
D9 |
P0.20 |
10 |
D8 |
P0.19 |
J11
PIN # |
Signal Name |
BMD-330 Functions |
|---|---|---|
1 |
D12 (MISO) |
P0.24 |
2 |
V5V |
N/A |
3 |
D13 (SCK) |
P0.25 |
4 |
D11 (MOSI) |
P0.23 |
5 |
RESET |
N/A |
6 |
N/A |
N/A |
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.
$ minicom -D <tty_device> -b 115200
Replace <tty_device> with the port where the
BMD-330-EVAL can be found. For example, under Linux,
/dev/ttyACM0.
Then build and flash the application in the usual way.
# From the root of the zephyr repository
west build -b ubx_bmd330eval_nrf52810 samples/hello_world
west flash
Debugging¶
Refer to the Nordic nRF5x Segger J-Link page to learn about debugging u-blox boards with a Segger J-LINK-OB IC.
Testing the LEDs and buttons in the BMD-330-EVAL¶
There are 2 samples that allow you to test that the buttons (switches) and LEDs on the board are working properly with Zephyr:
samples/basic/blinky
samples/basic/button
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/ubx_bmd330eval_nrf52810/ubx_bmd330eval_nrf52810.dts.