STM32WBA65I Discovery kit
Overview
STM32WBA65I-DK1 is a Bluetooth® Low Energy, 802.15.4 and Zigbee® wireless and ultra-low-power board embedding a powerful and ultra-low-power radio compliant with the Bluetooth® Low Energy SIG specification v5.4 with IEEE 802.15.4-2015 and Zigbee® specifications.
The ARDUINO® Uno V3 connectivity support and the ST morpho headers allow the easy expansion of the functionality of the STM32 Discovery kit open development platform with a wide choice of specialized shields.
Ultra-low-power wireless STM32WBA65RI microcontroller based on the Arm® Cortex® ‑M33 core with TrustZone®, MPU, DSP, and FPU, that operates at a frequency of up to 100 MHz, featuring 2 Mbyte of flash memory and 512 Kbytes of SRAM in a VFQFPN68 package
MCU RF board (MB2130):
2.4 GHz RF transceiver supporting Bluetooth® specification v5.4
Arm® Cortex® M33 CPU with TrustZone®, MPU, DSP, and FPU
Integrated PCB antenna
Three user LEDs (incl. one default not connected)
One reset push-buttons
One Joystick
Board connectors:
2 USB Type-C
ARDUINO® Uno V3 expansion connector
ST morpho headers for full access to all STM32 I/Os
Flexible power-supply options: ST-LINK USB VBUS or external sources
On-board STLINK-V3MODS debugger/programmer with USB re-enumeration capability: mass storage, Virtual COM port, and debug port
Hardware
The STM32WBA65xx multiprotocol wireless and ultralow power devices embed a powerful and ultralow power radio compliant with the Bluetooth® SIG Low Energy specification 5.4.
Includes ST state-of-the-art patented technology
Ultra low power radio:
2.4 GHz radio
RF transceiver supporting Bluetooth® Low Energy 5.4 specification IEEE 802.15.4-2015 PHY and MAC, supporting Thread, Matter and Zigbee®
Proprietary protocols
RX sensitivity: -96 dBm (Bluetooth® Low Energy at 1 Mbps) and -100 dBm (IEEE 802.15.4 at 250 kbps)
Programmable output power, up to +10 dBm with 1 dB steps
Support for external PA
Integrated balun to reduce BOM
Suitable for systems requiring compliance with radio frequency regulations ETSI EN 300 328, EN 300 440, FCC CFR47 Part 15 and ARIB STD-T66
Ultra low power platform with FlexPowerControl:
1.71 to 3.6 V power supply
40 °C to 85 °C temperature range
Autonomous peripherals with DMA, functional down to Stop 1 mode
120 nA Standby mode (16 wake-up pins)
1.68 µA Standby mode with 64 KB SRAM with RTC
5.58 µA Stop 2 mode with 64 KB SRAM with RTC
28.75 µA/MHz Run mode at 3.3 V
Radio: Rx 4.26 mA / Tx at 0 dBm 5.94 mA
ART Accelerator™: 8-Kbyte instruction cache allowing 0-wait-state execution from flash memory (frequency up to 100 MHz, 150 DMIPS)
Power management: embedded regulator LDO and SMPS step-down converter
Supporting switch on-the-fly and voltage scaling
Benchmarks:
1.5 DMIPS/MHz (Drystone 2.1)
410 CoreMark® (4.10 CoreMark/MHz)
Clock sources:
32 MHz crystal oscillator
32 kHz crystal oscillator (LSE)
Internal low-power 32 kHz (±5%) RC
Internal 16 MHz factory trimmed RC (±1%)
PLL for system clock and ADC
Memories:
2 MB flash memory with ECC, including 256 Kbytes with 100 cycles
512 KB SRAM, including 64 KB with parity check
512-byte (32 rows) OTP
Rich analog peripherals (independent supply):
12-bit ADC 2.5 Msps with hardware oversampling
Communication peripherals:
Four UARTs (ISO 7816, IrDA, modem)
Three SPIs
Four I2C Fm+ (1 Mbit/s), SMBus/PMBus®
System peripherals:
- Touch sensing controller, up to 24 sensors, supporting touch key, linear,
rotary touch sensors
One 16-bit, advanced motor control timer
Three 16-bit timers
Two 32-bit timer
Two low-power 16-bit timers (available in Stop mode)
Two Systick timers
RTC with hardware calendar and calibration
Two watchdogs
8-channel DMA controller, functional in Stop mode
Security and cryptography:
Arm® TrustZone® and securable I/Os, memories, and peripherals
Flexible life cycle scheme with RDP and password protected debug
Root of trust thanks to unique boot entry and secure hide protection area (HDP)
SFI (secure firmware installation) thanks to embedded RSS (root secure services)
Secure data storage with root hardware unique key (RHUK)
Secure firmware upgrade support with TF-M
Two AES co-processors, including one with DPA resistance
Public key accelerator, DPA resistant
HASH hardware accelerator
True random number generator, NIST SP800-90B compliant
96-bit unique ID
Active tampers
CRC calculation unit
Up to 86 I/Os (most of them 5 V-tolerant) with interrupt capability
Development support:
Serial wire debug (SWD), JTAG, Embedded Trace Macrocell™
ECOPACK2 compliant package
More information about STM32WBA series can be found here:
Supported Features
The stm32wba65i_dk1 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.
stm32wba65i_dk1/stm32wba65xx target
Type |
Location |
Description |
Compatible |
|---|---|---|---|
CPU |
on-chip |
ARM Cortex-M33 CPU1 |
|
ADC |
on-chip |
STM32 ADC1 |
|
Bluetooth |
on-chip |
Bluetooth HCI driver for ST STM32WBA1 |
|
Clock control |
on-chip |
STM32WBA RCC (Reset and Clock controller)1 |
|
on-chip |
STM32WBA HSE Clock1 |
||
on-chip |
Generic fixed-rate clock provider2 |
||
on-chip |
STM32 LSE Clock1 |
||
on-chip |
STM32WBA PLL1 |
||
on-chip |
STM32 Microcontroller Clock Output (MCO)1 |
||
Counter |
on-chip |
STM32 counters6 |
|
DMA |
on-chip |
STM32U5 DMA controller1 |
|
Flash controller |
on-chip |
STM32 Family flash controller1 |
|
GPIO & Headers |
on-chip |
STM32 GPIO Controller7 |
|
on-chip |
Serial Wire - JTAG Connector1 |
||
on-board |
GPIO pins exposed on Arduino Uno (R3) headers1 |
||
I2C |
on-chip |
||
IEEE 802.15.4 |
on-chip |
ST STM32WBA IEEE 802.15.41 |
|
Input |
on-board |
Input driver for ADC attached resistor ladder buttons1 |
|
Interrupt controller |
on-chip |
ARMv8-M NVIC (Nested Vectored Interrupt Controller)1 |
|
on-chip |
STM32G0 External Interrupt Controller1 |
||
LED |
on-board |
Group of GPIO-controlled LEDs1 |
|
MMU / MPU |
on-chip |
ARMv8-M MPU (Memory Protection Unit)1 |
|
MTD |
on-chip |
STM32 flash memory1 |
|
on-board |
Fixed partitions of a flash (or other non-volatile storage) memory1 |
||
Pin control |
on-chip |
STM32 Pin controller1 |
|
Power management |
on-chip |
STM32 power controller1 |
|
PWM |
on-chip |
STM32 PWM6 |
|
Reset controller |
on-chip |
STM32 Reset and Clock Control (RCC) Controller1 |
|
RNG |
on-chip |
STM32 Random Number Generator1 |
|
RTC |
on-chip |
STM32 RTC1 |
|
Sensors |
on-chip |
STM32 family TEMP node for production calibrated sensors with two calibration temperatures1 |
|
Serial controller |
on-chip |
||
on-chip |
STM32 LPUART1 |
||
SMbus |
on-chip |
STM32 SMBus controller2 |
|
SPI |
on-chip |
||
SRAM |
on-chip |
Generic on-chip SRAM1 |
|
Timer |
on-chip |
ARMv8-M System Tick1 |
|
on-chip |
STM32 timers6 |
||
on-chip |
|||
Watchdog |
on-chip |
STM32 watchdog1 |
|
on-chip |
STM32 system window watchdog1 |
stm32wba65i_dk1/stm32wba65xx/ns target
Type |
Location |
Description |
Compatible |
|---|---|---|---|
CPU |
on-chip |
ARM Cortex-M33 CPU1 |
|
ADC |
on-chip |
STM32 ADC1 |
|
Bluetooth |
on-chip |
Bluetooth HCI driver for ST STM32WBA1 |
|
Clock control |
on-chip |
STM32WBA RCC (Reset and Clock controller)1 |
|
on-chip |
STM32WBA HSE Clock1 |
||
on-chip |
Generic fixed-rate clock provider2 |
||
on-chip |
STM32 LSE Clock1 |
||
on-chip |
STM32WBA PLL1 |
||
on-chip |
STM32 Microcontroller Clock Output (MCO)1 |
||
Counter |
on-chip |
STM32 counters6 |
|
DMA |
on-chip |
STM32U5 DMA controller1 |
|
Flash controller |
on-chip |
STM32 Family flash controller1 |
|
GPIO & Headers |
on-chip |
STM32 GPIO Controller7 |
|
on-chip |
Serial Wire - JTAG Connector1 |
||
on-board |
GPIO pins exposed on Arduino Uno (R3) headers1 |
||
I2C |
on-chip |
||
IEEE 802.15.4 |
on-chip |
ST STM32WBA IEEE 802.15.41 |
|
Input |
on-board |
Input driver for ADC attached resistor ladder buttons1 |
|
Interrupt controller |
on-chip |
ARMv8-M NVIC (Nested Vectored Interrupt Controller)1 |
|
on-chip |
STM32G0 External Interrupt Controller1 |
||
LED |
on-board |
Group of GPIO-controlled LEDs1 |
|
MMU / MPU |
on-chip |
ARMv8-M MPU (Memory Protection Unit)1 |
|
MTD |
on-chip |
STM32 flash memory1 |
|
on-board |
Fixed partitions of a flash (or other non-volatile storage) memory1 |
||
Pin control |
on-chip |
STM32 Pin controller1 |
|
Power management |
on-chip |
STM32 power controller1 |
|
PWM |
on-chip |
STM32 PWM6 |
|
Reset controller |
on-chip |
STM32 Reset and Clock Control (RCC) Controller1 |
|
RNG |
on-chip |
STM32 Random Number Generator1 |
|
RTC |
on-chip |
STM32 RTC1 |
|
Sensors |
on-chip |
STM32 family TEMP node for production calibrated sensors with two calibration temperatures1 |
|
Serial controller |
on-chip |
||
on-chip |
STM32 LPUART1 |
||
SMbus |
on-chip |
STM32 SMBus controller2 |
|
SPI |
on-chip |
||
Timer |
on-chip |
ARMv8-M System Tick1 |
|
on-chip |
STM32 timers6 |
||
on-chip |
|||
Watchdog |
on-chip |
STM32 watchdog1 |
|
on-chip |
STM32 system window watchdog1 |
Zephyr board options
Zephyr supports building both Secure and Non-Secure firmware for STM32WBA65I-DK1 board where TF-M is the embedded Secure firmware and Zephyr the Non-Secure firmware.
The BOARD options are summarized below:
BOARD |
Description |
|---|---|
stm32wba65i_dk1 |
For building TrustZone Disabled firmware |
stm32wba65i_dk1/stm32wba65xx/ns |
For building Non-Secure firmware |
Here are the instructions to build Zephyr with a non-secure configuration, using TF-M IPC sample:
# From the root of the zephyr repository
west build -b stm32wba65i_dk1/stm32wba65xx/ns samples/tfm_integration/tfm_ipc
Once done, before flashing, you need to first run a generated script that will set platform Option Bytes config and erase internal flash (among others, Option Bit TZEN will be set).
$ ./build/tfm/api_ns/regression.sh
$ west flash
Please note that, after having programmed the board for a TrustZone enabled system
(e.g. with ./build/tfm/api_ns/regression.sh), the SoC TZEN Option Byte is enabled
and you will need to operate specific sequence to disable this TZEN Option Byte
configuration to get your board back in normal state for booting with a TrustZone
disabled system (e.g. without TF-M support).
You can use STM32CubeProgrammer to disable the SoC TZEN Option Byte config. Refer
to How to disable STM32WBA65 TZEN Option Byte.
Connections and IOs
STM32WBA65I-DK1 board has 4 GPIO controllers. These controllers are responsible for pin muxing, input/output, pull-up, etc.
Default Zephyr Peripheral Mapping:
USART_1 TX/RX : PB12/PA8
I2C_1_SCL : PB2
I2C_1_SDA : PB1
LD6 : PD8
SPI_1_NSS : PA12 (arduino_spi)
SPI_1_SCK : PB4 (arduino_spi)
SPI_1_MISO : PB3 (arduino_spi)
SPI_1_MOSI : PA15 (arduino_spi)
System Clock
STM32WBA65I-DK1 System Clock could be driven by internal or external oscillator, as well as main PLL clock. By default System clock is driven by HSE+PLL clock at 100MHz.
Serial Port
STM32WBA65I-DK1 board has 3 U(S)ARTs. The Zephyr console output is assigned to USART1. Default settings are 115200 8N1.
Programming and Debugging
The stm32wba65i_dk1 board supports the runners and associated west commands listed below.
| flash | debug | rtt | debugserver | attach | |
|---|---|---|---|---|---|
| openocd | ✅ | ✅ (default) | ✅ | ✅ | ✅ |
| stm32cubeprogrammer | ✅ (default) |
STM32WBA65I-DK1 board includes an ST-LINK/V3 embedded debug tool interface. It could be used for flash and debug using STM32Cube ecosystem tools.
Flashing
The board is configured to be flashed using west STM32CubeProgrammer runner, so its installation is required.
Flashing an application to a STM32WBA65I-DK1
Here is an example for the Blinky application.
# From the root of the zephyr repository
west build -b stm32wba65i_dk1 samples/basic/blinky
west flash
You will see the LED blinking every second.
Debugging
Debugging using OpenOCD
You can debug an application in the usual way using OpenOCD. Here is an example for the Blinky application.
# From the root of the zephyr repository
west build -b stm32wba65i_dk1 samples/basic/blinky
west debug