NUCLEO-WB15CC

Affordable and flexible platform to ease prototyping using a STM32WB15CC microcontroller.

Overview¶

The NUCLEO-WB15CC STM32WB Nucleo-64 boards are Bluetooth® Low Energy (BLE) wireless and ultra-low-power devices embedding a powerful and ultra-low-power radio compliant with the Bluetooth® Low Energy (BLE) SIG specification v5.2.

Microcontroller features¶

https://www.st.com/en/microcontrollers-microprocessors/stm32wb15cc.html

• Includes ST state-of-the-art patented technology
• Radio
  • 2.4 GHz
  • RF transceiver supporting Bluetooth® 5.2 specification
  • RX sensitivity: -95.5 dBm (Bluetooth® Low Energy at 1 Mbps)
  • Programmable output power up to +5.5 dBm with 1 dB steps
• Integrated balun to reduce BOM
  • Support for 2 Mbps
  • Dedicated Arm® 32-bit Cortex® M0+ CPU for real-time Radio layer
  • Accurate RSSI to enable power control
  • Suitable for systems requiring compliance with radio frequency regulations ETSI EN 300 328, EN 300 440, FCC CFR47 Part 15 and ARIB STD-T66
  • Support for external PA
  • Available integrated passive device (IPD) companion chip for optimized matching solution (MLPF-WB-01E3)
• Ultra-low-power platform
  • 1.71 to 3.6 V power supply
  • – 40 °C to 85 / 105 °C temperature ranges
  • 12 nA shutdown mode
  • 610 nA Standby mode + RTC + 48 KB RAM
  • Active-mode MCU: 33 µA / MHz when RF and SMPS on
  • Radio: Rx 4.5 mA / Tx at 0 dBm 5.2 mA
• Core: Arm® 32-bit Cortex®-M4 CPU with FPU, adaptive real-time accelerator (ART Accelerator) allowing 0-wait-state execution from Flash memory, frequency up to 64 MHz, MPU, 80 DMIPS and DSP instructions
• Performance benchmark
  • 1.25 DMIPS/MHz (Drystone 2.1)
• Supply and reset management
  • High efficiency embedded SMPS step-down converter with intelligent bypass mode
  • Ultra-safe, low-power BOR (brownout reset) with five selectable thresholds
  • Ultra-low-power POR/PDR
  • Programmable voltage detector (PVD)
  • VBAT mode with RTC and backup registers
• Clock sources
  • 32 MHz crystal oscillator with integrated trimming capacitors (Radio and CPU clock)
  • 32 kHz crystal oscillator for RTC (LSE)
  • Internal low-power 32 kHz RC (LSI1)
  • Internal low-drift 32 kHz RC (LSI2)
  • Internal multispeed 100 kHz to 48 MHz oscillator, factory-trimmed
  • High speed internal 16 MHz factory trimmed RC
  • 1x PLL for system clock and ADC
• Memories
  • 320 KB Flash memory with sector protection (PCROP) against R/W operations, enabling radio stack and application
  • 48 KB SRAM, including 36 KB with hardware parity check
  • 20x32-bit backup register
  • Boot loader supporting USART, SPI, I2C interfaces
  • 1 Kbyte (128 double words) OTP
• Rich analog peripherals (down to 1.62 V)
  • 12-bit ADC 2.5 Msps, 190 µA/Msps
  • 1x ultra-low-power comparator
• System peripherals
  • Inter processor communication controller (IPCC) for communication with Bluetooth® Low Energy
  • HW semaphores for resources sharing between CPUs
  • 1x DMA controller (7x channels) supporting ADC, SPI, I2C, USART, AES, timers
  • 1x USART (ISO 7816, IrDA, SPI Master, Modbus and Smartcard mode)
  • 1x LPUART (low power)
  • 1x SPI 32 Mbit/s
  • 1x I2C (SMBus/PMBus)
  • Touch sensing controller, up to eight sensors
  • 1x 16-bit, four channels advanced timer
  • 1x 32-bit, four channels timer
  • 2x 16-bit ultra-low-power timer
  • 1x independent Systick
  • 1x independent watchdog
  • 1x window watchdog
• Security and ID
  • Secure firmware installation (SFI) for Bluetooth® Low Energy SW stack
  • 2x hardware encryption AES maximum 256-bit for the application and the Bluetooth® Low Energy
  • HW public key authority (PKA)
  • Cryptographic algorithms: RSA, Diffie-Helman, ECC over GF(p)
  • True random number generator (RNG)
  • Sector protection against R/W operation (PCROP)
  • CRC calculation unit
  • Die information: 96-bit unique ID
  • IEEE 64-bit unique ID. Possibility to derive Bluetooth® Low Energy 48-bit EUI
• Up to 37 fast I/Os, 35 of them 5 V-tolerant

Nucleo features¶

Nucleo pinout¶

Pins Legend¶

You can find more details on the available pins and labels in the PeripheralPins.c and PinNames.h files.

https://github.com/ARMmbed/mbed-os/tree/master/targets/TARGET_STM/TARGET_STM32WB/TARGET_STM32WB15xC/TARGET_NUCLEO_WB15CC

Arduino-compatible headers¶

Morpho headers¶

These headers give access to all STM32 pins.

BLE FW update¶

Complete information: https://github.com/ARMmbed/mbed-os/blob/master/targets/TARGET_STM/TARGET_STM32WB/README.md

Tips and Tricks¶

https://github.com/ARMmbed/mbed-os/blob/master/targets/TARGET_STM/README.md

https://github.com/ARMmbed/mbed-os/blob/master/targets/TARGET_STM/TARGET_STM32WB/README.md

Find more information in ST WIKI pages.

Technical references¶

Board : https://www.st.com/en/evaluation-tools/nucleo-wb15cc.html

STM32WB15CC : https://www.st.com/en/microcontrollers-microprocessors/stm32wb15cc.html

Examples¶

• mbed-os-example-blinky-baremetal

Known limitations¶

The following section describes known limitations of the platform. Note that general issues are tracked into the mbed-os repository available on GitHub.

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