1.. zephyr:board:: nucleo_wba55cg
2
3Overview
4********
5
6NUCLEO-WBA55CG is a Bluetooth® Low Energy wireless and ultra-low-power board
7embedding a powerful and ultra-low-power radio compliant with the Bluetooth®
8Low Energy SIG specification v5.3.
9
10The ARDUINO® Uno V3 connectivity support and the ST morpho headers allow the
11easy expansion of the functionality of the STM32 Nucleo open development
12platform with a wide choice of specialized shields.
13
14- Ultra-low-power wireless STM32WBA55CG microcontroller based on the Arm®
15  Cortex®‑M33 core, featuring 1 Mbyte of flash memory and 128 Kbytes of SRAM in
16  a UFQFPN48 package
17
18- MCU RF board (MB1863):
19
20  - 2.4 GHz RF transceiver supporting Bluetooth® specification v5.3
21  - Arm® Cortex® M33 CPU with TrustZone®, MPU, DSP, and FPU
22  - Integrated PCB antenna
23
24- Three user LEDs
25- Three user and one reset push-buttons
26
27- Board connectors:
28
29  - USB Micro-B
30  - ARDUINO® Uno V3 expansion connector
31  - ST morpho headers for full access to all STM32 I/Os
32
33- Flexible power-supply options: ST-LINK USB VBUS or external sources
34- On-board STLINK-V3MODS debugger/programmer with USB re-enumeration capability:
35  mass storage, Virtual COM port, and debug port
36
37Hardware
38********
39
40The STM32WBA55xx multiprotocol wireless and ultralow power devices embed a
41powerful and ultralow power radio compliant with the Bluetooth® SIG Low Energy
42specification 5.3. They contain a high-performance Arm Cortex-M33 32-bit RISC
43core. They operate at a frequency of up to 100 MHz.
44
45- Includes ST state-of-the-art patented technology
46
47- Ultra low power radio:
48
49  - 2.4 GHz radio
50  - RF transceiver supporting Bluetooth® Low Energy 5.3 specification
51  - Proprietary protocols
52  - RX sensitivity: -96 dBm (Bluetooth® Low Energy at 1 Mbps)
53  - Programmable output power, up to +10 dBm with 1 dB steps
54  - Integrated balun to reduce BOM
55  - Suitable for systems requiring compliance with radio frequency regulations
56    ETSI EN 300 328, EN 300 440, FCC CFR47 Part 15 and ARIB STD-T66
57
58- Ultra low power platform with FlexPowerControl:
59
60  - 1.71 to 3.6 V power supply
61  - - 40 °C to 85 °C temperature range
62  - Autonomous peripherals with DMA, functional down to Stop 1 mode
63  - 140 nA Standby mode (16 wake-up pins)
64  - 200 nA Standby mode with RTC
65  - 2.4 µA Standby mode with 64 KB SRAM
66  - 16.3 µA Stop mode with 64 KB SRAM
67  - 45 µA/MHz Run mode at 3.3 V
68  - Radio: Rx 7.4 mA / Tx at 0 dBm 10.6 mA
69
70- Core: Arm® 32-bit Cortex®-M33 CPU with TrustZone®, MPU, DSP, and FPU
71- ART Accelerator™: 8-Kbyte instruction cache allowing 0-wait-state execution
72  from flash memory (frequency up to 100 MHz, 150 DMIPS)
73- Power management: embedded regulator LDO supporting voltage scaling
74
75- Benchmarks:
76
77  - 1.5 DMIPS/MHz (Drystone 2.1)
78  - 407 CoreMark® (4.07 CoreMark/MHz)
79
80- Clock sources:
81
82  - 32 MHz crystal oscillator
83  - 32 kHz crystal oscillator (LSE)
84  - Internal low-power 32 kHz (±5%) RC
85  - Internal 16 MHz factory trimmed RC (±1%)
86  - PLL for system clock and ADC
87
88- Memories:
89
90  - 1 MB flash memory with ECC, including 256 Kbytes with 100 cycles
91  - 128 KB SRAM, including 64 KB with parity check
92  - 512-byte (32 rows) OTP
93
94- Rich analog peripherals (independent supply):
95
96  - 12-bit ADC 2.5 Msps with hardware oversampling
97
98- Communication peripherals:
99
100  - Three UARTs (ISO 7816, IrDA, modem)
101  - Two SPIs
102  - Two I2C Fm+ (1 Mbit/s), SMBus/PMBus®
103
104- System peripherals:
105
106  - Touch sensing controller, up to 20 sensors, supporting touch key, linear,
107     rotary touch sensors
108  - One 16-bit, advanced motor control timer
109  - Three 16-bit timers
110  - One 32-bit timer
111  - Two low-power 16-bit timers (available in Stop mode)
112  - Two Systick timers
113  - Two watchdogs
114  - 8-channel DMA controller, functional in Stop mode
115
116- Security and cryptography:
117
118  - Arm® TrustZone® and securable I/Os, memories, and peripherals
119  - Flexible life cycle scheme with RDP and password protected debug
120  - Root of trust thanks to unique boot entry and secure hide protection area (HDP)
121  - SFI (secure firmware installation) thanks to embedded RSS (root secure services)
122  - Secure data storage with root hardware unique key (RHUK)
123  - Secure firmware upgrade support with TF-M
124  - Two AES co-processors, including one with DPA resistance
125  - Public key accelerator, DPA resistant
126  - HASH hardware accelerator
127  - True random number generator, NIST SP800-90B compliant
128  - 96-bit unique ID
129  - Active tampers
130  - CRC calculation unit
131
132- Up to 35 I/Os (most of them 5 V-tolerant) with interrupt capability
133
134- Development support:
135
136  - Serial wire debug (SWD), JTAG
137
138- ECOPACK2 compliant package
139
140More information about STM32WBA series can be found here:
141
142- `STM32WBA Series on www.st.com`_
143
144Supported Features
145==================
146
147The Zephyr nucleo_wba55cg board configuration supports the following hardware features:
148
149+-----------+------------+-------------------------------------+
150| Interface | Controller | Driver/Component                    |
151+===========+============+=====================================+
152| NVIC      | on-chip    | nested vector interrupt controller  |
153+-----------+------------+-------------------------------------+
154| UART      | on-chip    | serial port-polling;                |
155|           |            | serial port-interrupt               |
156+-----------+------------+-------------------------------------+
157| PINMUX    | on-chip    | pinmux                              |
158+-----------+------------+-------------------------------------+
159| GPIO      | on-chip    | gpio                                |
160+-----------+------------+-------------------------------------+
161| I2C       | on-chip    | i2c                                 |
162+-----------+------------+-------------------------------------+
163| SPI       | on-chip    | spi                                 |
164+-----------+------------+-------------------------------------+
165| ADC       | on-chip    | adc                                 |
166+-----------+------------+-------------------------------------+
167| WATCHDOG  | on-chip    | independent watchdog                |
168+-----------+------------+-------------------------------------+
169| RNG       | on-chip    | True Random number generator        |
170+-----------+------------+-------------------------------------+
171| RADIO     | on-chip    | Bluetooth Low Energy                |
172+-----------+------------+-------------------------------------+
173| RTC       | on-chip    | rtc                                 |
174+-----------+------------+-------------------------------------+
175
176Other hardware features are not yet supported on this Zephyr port.
177
178The default configuration can be found in the defconfig file:
179:zephyr_file:`boards/st/nucleo_wba55cg/nucleo_wba55cg_defconfig`
180
181Bluetooh support
182----------------
183
184BLE support is enabled on nucleo_wba55cg. To build a zephyr sample using this board
185you first need to install Bluetooth Controller libraries available in Zephyr as binary
186blobs.
187
188To fetch Binary Blobs:
189
190.. code-block:: console
191
192   west blobs fetch hal_stm32
193
194Connections and IOs
195===================
196
197Nucleo WBA55CG Board has 4 GPIO controllers. These controllers are responsible for pin muxing,
198input/output, pull-up, etc.
199
200Default Zephyr Peripheral Mapping:
201----------------------------------
202
203.. rst-class:: rst-columns
204
205- USART_1 TX/RX : PB12/PA8
206- I2C_1_SCL : PB2
207- I2C_1_SDA : PB1
208- USER_PB : PC13
209- LD1 : PB4
210- SPI_1_NSS : PA12 (arduino_spi)
211- SPI_1_SCK : PB4 (arduino_spi)
212- SPI_1_MISO : PB3 (arduino_spi)
213- SPI_1_MOSI : PA15 (arduino_spi)
214
215System Clock
216------------
217
218Nucleo WBA55CG System Clock could be driven by internal or external oscillator,
219as well as main PLL clock. By default System clock is driven by HSE+PLL clock at 100MHz.
220
221Serial Port
222-----------
223
224Nucleo WBA55CG board has 1 U(S)ARTs. The Zephyr console output is assigned to USART1.
225Default settings are 115500 8N1.
226
227
228Programming and Debugging
229*************************
230
231Nucleo WBA55CG board includes an ST-LINK/V3 embedded debug tool interface.
232It could be used for flash and debug using either OpenOCD or STM32Cube ecosystem tools.
233
234Flashing
235========
236
237The board is configured to be flashed using west `STM32CubeProgrammer`_ runner,
238so its :ref:`installation <stm32cubeprog-flash-host-tools>` is required.
239
240Alternatively, openocd can also be used to flash the board using
241the ``--runner`` (or ``-r``) option:
242
243.. code-block:: console
244
245   $ west flash --runner openocd
246
247Flashing an application to Nucleo WBA55CG
248-----------------------------------------
249
250Here is an example for the :zephyr:code-sample:`blinky` application.
251
252.. zephyr-app-commands::
253   :zephyr-app: samples/basic/blinky
254   :board: nucleo_wba55cg
255   :goals: build flash
256
257You will see the LED blinking every second.
258
259Debugging
260=========
261
262Debugging using OpenOCD
263-----------------------
264
265You can debug an application in the usual way using OpenOCD. Here is an example for the
266:zephyr:code-sample:`blinky` application.
267
268.. zephyr-app-commands::
269   :zephyr-app: samples/basic/blinky
270   :board: nucleo_wba55cg
271   :maybe-skip-config:
272   :goals: debug
273
274Debugging using STM32CubeIDE
275----------------------------
276
277You can debug an application using a STM32WBA compatible version of STM32CubeIDE.
278
279For that:
280
281- Create an empty STM32WBA project by going to File > New > STM32 project
282- Select your MCU, click Next, and select an Empty project.
283- Right click on your project name, select Debug as > Debug configurations
284- In the new window, create a new target in STM32 Cortex-M C/C++ Application
285- Select the new target and enter the path to zephyr.elf file in the C/C++ Application field
286- Check Disable auto build
287- Run debug
288
289.. _STM32WBA Series on www.st.com:
290   https://www.st.com/en/microcontrollers-microprocessors/stm32wba-series.html
291
292.. _OpenOCD official Github mirror:
293   https://github.com/openocd-org/openocd/commit/870769b0ba9f4dae6ada9d8b1a40d75bd83aaa06
294
295.. _STM32CubeProgrammer:
296   https://www.st.com/en/development-tools/stm32cubeprog.html
297