ST STM32WB55无线微控制器开发方案.docx

1、ST STM32WB55无线微控制器开发方案ST STM32WB55 Zigbee 30无线微控制器开发方案ST公司的stm32WB55xx系列和STM32WB35xx系列是多协议和超低功耗32位MCU,嵌入了功能强大和与Bluetooth低功耗SIG指标v5.0和IEEE 802.15.4-2011兼容的超低功耗无线电.器件还包含了专门用途的Arm Cortex -M0+核,用来进行所有实时低层操作.器件的工作频率高达64MHz,器件的Cortex-M4核具有浮点单元(FPU)单精度,支持所有Arm单精度数据处理指令和数据类型,还能实现全套DSP指令和存储器保护单元(MPU),从而增强了应用

2、的安全性.器件嵌入了高速存储器(STM32WB55xx:高达1MB闪存和256KB SRAM, STM32WB35xx:高达512MB闪存和96KB SRAM),所有封装的器件具有Quad-SPI接口和扩展增强I/O和外设.器件支持存储器和外设间以及存储器到存储器的直接数据传输.器件的无线电为2.4GHz,RF收发器支持Bluetooth 5, IEEE 802.15.4-2011 PHY和MCU,支持线程和Zigbee 3.0.接收RX灵敏度为-96dBM(Bluetooth低功耗1 Mbps), -100 dBm (802.15.4),可编程输出功率+6 dBm,每步为1dB,集成了平衡/

3、不平衡变换器以降低BOM,支持2 Mbps,工作电压1.71-3.6V,关断模式电流13nA,工作温度 40 C 到 85 / 105 C.主要用在家庭自动化,智能照明,智能建筑物和各种IoT连接.本文介绍了STM32WB55主要特性, STM32WB55xx系列框图和STM32WB35xx系列框图, RF前端框图,电源图,时钟树,以及Nucleo包(P-NUCLEO-WB55)主要特性, Nucleo-68硬件框图,电路图和材料清单.The STM32WB55xx and STM32WB35xx multiprotocol wireless and ultra-low-power devic

4、es embed a powerful and ultra-low-power radio compliant with the Bluetooth Low Energy SIG specification v5.0 and with IEEE 802.15.4-2011. They contain a dedicated Arm Cortex -M0+ for performing all the real-time low layer operation.The devices are designed to be extremely low-power and are based on

5、the high-performance Arm Cortex-M4 32-bit RISC core operating at afrequencyof up to 64 MHz. The Cortex-M4 core features a Floating point unit (FPU) single precision that supports all Arm single-precision data-processing instructions and data types. It also implements a full set of DSP instructions a

6、nd a memory protection unit (MPU) that enhances application security.Enhanced inter-processor communication is provided by the IPCC with six bidirectional channels. The HSEM provides hardware semaphores used to share common resources between the two processors.The devices embed high-speed memories (

7、up to 1 Mbyte of Flash memory for STM32WB55xx, up to 512 Kbytes for STM32WB35xx, up to 256 Kbytes of SRAM for STM32WB55xx, 96 Kbytes for STM32WB35xx), a Quad-SPI Flash memory interface (available on all packages) and an extensive range of enhanced I/Os and peripherals.Direct data transfer between me

8、mory and peripherals and from memory to memory is supported by fourteen DMA channels with a full flexible channel mapping by the DMAMUX peripheral.The devices feature several mechanisms for embedded Flash memory and SRAM: readout protection, write protection and proprietary code readout protection.

9、Portions of the memory can be secured for Cortex -M0+ exclusive access.The two AES encryption engines, PKA and RNG enable lower layer MAC and upper layer cryptography. A customer key storage feature may be used to keep the keys hidden.The devices offer a fast 12-bit ADC and two ultra-low-power compa

10、rators associated with a high accuracy reference voltage generator.These devices embed a low-power RTC, one advanced 16-bit timer, one general-purpose32-bit timer, two general-purpose 16-bit timers, and two 16-bit low-power timers.In addition, up to 18 capacitive sensing channels are available for S

11、TM32WB55xx (not on UFQFPN48 package). The STM32WB55xx also embed an integrated LCD driver up to 8x40 or 4x44, with internal step-up converter.The STM32WB55xx and STM32WB35xx also feature standard and advanced communication interfaces, namely one USART (ISO 7816, IrDA, Modbus and Smartcard mode), one

12、 low- power UART (LPUART), two I2Cs (SMBus/PMBus), two SPIs (one for STM32WB35xx) up to 32 MHz, one serial audio interface (SAI) with two channels and three PDMs, one USB 2.0 FS device with embedded crystal-less oscillator, supporting BCD and LPM and one Quad-SPI with execute-in-place (XIP) capabili

13、ty.The STM32WB55xx and STM32WB35xx operate in the -40 to +105 C (+125 C junction) and -40 to +85 C (+105 C junction) temperature ranges from a 1.71 to 3.6 V power supply. A comprehensive set of power-saving modes enables the design of low-power applications.The devices include independent power supp

14、lies for analog input for ADC.The STM32WB55xx and STM32WB35xx integrate a high efficiency SMPS step-down converter with automatic bypass mode capability when the VDD falls below VBORx (x=1, 2, 3, 4) voltage level (default is 2.0 V). It includes independent power supplies for analog input for ADC and

15、 comparators, as well as a 3.3 V dedicated supply input for USB.A VBAT dedicated supply allows the devices to back up the LSE 32.768 KHz oscillator, the RTC and the backup registers, thus enabling the STM32WB55xx and STM32WB35xx to supply these functions even if the main VDD is not present through a

16、 CR2032-like battery, a Supercap or a small rechargeable battery.The STM32WB55xx offer four packages, from 48 to 129 pins. The STM32WB35xx offer one package, 48 pins.STM32WB55主要特性:Includes ST state-of-the-art patented technology Radio 2.4 GHz RF transceiver supporting Bluetooth 5 specification, IEEE

17、 802.15.4-2011 PHY and MAC, supporting Thread and Zigbee 3.0 RX sensitivity:-96 dBm (Bluetooth Low Energy at 1 Mbps),-100 dBm (802.15.4) Programmable output power up to +6 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 l

18、ayer 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

19、-WB55-01E3 orMLPF-WB55-02E3) Ultra-low-power platform 1.71 to 3.6 V power supply 40 C to 85 / 105 C temperature ranges 13 nA shutdown mode 600 nA Standby mode + RTC + 32 KB RAM 2.1 A Stop mode + RTC + 256 KB RAM Active-mode MCU: 53 A / MHz when RF and SMPS on Radio: Rx 4.5 mA / Tx at 0 dBm 5.2 mA Co

20、re: 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) 219.48 CoreMark (3.43 CoreMark/MHz at 64 MHz) Ener

21、gy benckmark 303 ULPMark CP score Supply and reset management High efficiency embedded SMPSstep-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 ba

22、ckup 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 (5%) RC (LSI1) Internal low-power 32 kHz (stability 500 ppm) RC (LSI2) Internal multispeed 100 kHz to 48 MHz oscillator,

23、auto-trimmed by LSE (better than 0.25% accuracy) High speed internal 16 MHz factory trimmed RC (1%) 2x PLL for system clock, USB, SAI and ADC Memories Up to 1 MB Flash memory with sector protection (PCROP) against R/W operations, enabling authentic Bluetooth Low Energy and 802.15.4 SW stack Up to 25

24、6 KB SRAM, including 64 KB with hardware parity check 20x32-bit backup register Boot loader supporting USART, SPI, I2C and USB interfaces OTA (over the air) Bluetooth Low Energy and 802.15.4 update Quad SPI memory interface with XIP Rich analog peripherals (down to 1.62 V) 12-bit ADC 4.26 Msps, up t

25、o 16-bit with hardware oversampling, 200 A/Msps 2x ultra-low-power comparator Accurate 2.5 V or 2.048 V reference voltage buffered output System peripherals Inter processor communication controller (IPCC) for communication with Bluetooth Low Energy and 802.15.4 HW semaphores for resources sharing be

26、tween CPUs 2x DMA controllers (7x channels each) supporting ADC, SPI, I2C, USART, QSPI, SAI, AES, timers 1x USART (ISO 7816, IrDA, SPI Master, Modbus and Smartcard mode) 1x LPUART (low power) 2x SPI 32 Mbit/s 2x I2C (SMBus/PMBus) 1x SAI (dual channel high quality audio) 1x USB 2.0 FS device, crystal

27、-less, BCD and LPM Touch sensing controller, up to 18 sensors LCD 8x40 with step-up converter 1x 16-bit, four channels advanced timer 2x 16-bits, two channels timer 1x 32-bits, four channels timer 2x 16-bits ultra-low-power timer 1x independent Systick 1x independent watchdog 1x window watchdog Secu

28、rity and ID Secure firmware installation (SFI) for Bluetooth Low Energy and 802.15.4 SW stack 3x hardware encryption AES maximum 256-bit for the application, the Bluetooth Low Energy and IEEE802.15.4 Customer key storage / key manager services HW public key authority (PKA) Cryptographic algorithms:

29、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 802.15.4 64-bit and Bluetooth Low Energy 48-bit EUI Up to 72 fast I/Os, 70 of them

30、5 V-tolerant Development support Serial wire debug (SWD), JTAG for the Application processor Application cross trigger with input / output Embedded Trace Macrocell for application All packages are ECOPACK2 compliant图1, STM32WB55xx系列框图图2, STM32WB35xx系列框图图3, STM32WB55xx和STM32WB35xx系列 RF前端框图图4.STM32WB5

31、5xx系列电源概述图图5.STM32WB35xx系列电源概述图图6.时钟树图Nucleo包(P-NUCLEO-WB55)The Nucleo pack (P-NUCLEO-WB55) with a Nucleo-68 board and a USB dongle provides an affordable and flexible way for users to try out new concepts and build prototypes using STM32WB microcontrollers with a 2.4 GHz radio interface.This circuit block provides various combinations of performance, power consumption and features. A 2.4 GHz RF transceiver supporting Bluetooth specification v5.0 and IEEE 802.15.4-2011 PHY and MAC is supported.Arduino Uno V3 connectivity and ST morpho headers allow the user to easily expand the fun