ST BlueNRG-MS低功耗蓝牙(BLE)单模式网络处理方案.docx

ST BlueNRGMS低功耗蓝牙(BLE)单模式网络处理方案ST公司的BlueNRG-MS是低功耗蓝牙(BLE)单模式网络处理器,嵌入Cortex M0核,和蓝牙v4.1标准兼容,嵌入了低功耗蓝牙协议堆栈GAP, GATT, SM, L2CAP, LL和RF-PHY,工作电压1.7v-3.6v,最大发送电流8.2Ma(0 dBm, 3.0 V),主要用在手表,健身,健美和运动,消费类医疗设备,遥控,家庭和工业自动化,手机外设,PC外设,安防和资产管理.本文介绍了BlueNRG-MS主要特性,功能框图和多种应用电路,以及低功耗蓝牙评估板X-NUCLEO-IDB04A1主要特性,电路图和材料清单.The BlueNRG-MS is a very low power Bluetooth low energy (BLE) single-mode networkprocessor, compliant with Bluetooth specification v4.1. The BlueNRG-MS supports multipleroles simultaneously, and can act at the same time as Bluetooth Smart sensor and hubdevice.The entire Bluetooth low energy stack runs on the embedded Cortex M0 core. The nonvolatile Flash memory allows on-field stack upgrading. The BlueNRG-MS allowsapplications to meet of the tight advisable peak current requirements imposed with the useof standard coin cell batteries. The maximum peak current is only 10 mA at 1 dBm of outputpower. Ultra low-power sleep modes and very short transition times between operatingmodes allow very low average current consumption, resulting in longer battery life. TheBlueNRG-MS offers the option of interfacing with external microcontrollers using SPItransport layer.The BlueNRG-MS is a single-mode Bluetooth low energy master/slave network processor,compliant with the Bluetooth specification v4.1.It integrates a 2.4 GHz RF transceiver and a powerful Cortex-M0 microcontroller, on which a complete power-optimized stack for Bluetooth single mode protocol runs, providing: Master, slave role support GAP: central, peripheral, observer or broadcaster roles ATT/GATT: client and server SM: privacy, authentication and authorization L2CAP Link Layer: AES-128 encryption and decryptionAn on-chip non-volatile Flash memory allows on-field Bluetooth low energy stack upgrade.In addition, according the Bluetooth specification v4.1 the BlueNRG-MS provides: Multiple roles simultaneously support Support simultaneous advertising and scanning Support being Slave of up to two Masters simultaneously Privacy V1.1 Low Duty Cycle Directed Advertising Connection parameters request procedure LE Ping 32 bits UUIDs L2CAP Connection Oriented ChannelsThe BlueNRG-MS is equipped with Bluetooth low energy profiles in C source code.The device allows applications to meet of the tight advisable peak current requirementsimposed with the use of standard coin cell batteries. If the high efficiency embedded DC-DCstep-down converter is used, the maximum input current is only 15 mA at the highest outputpower (+8 dBm). Even if the DC-DC converter is not used, the maximum input current isonly 29 mA at the highest output power, still preserving battery life.Ultra low-power sleep modes and very short transition time between operating modes resultin very low average current consumption during real operating conditions, providing verylong battery life.Two different external matching networks are suggested: standard mode (TX output powerup to +5 dBm) and high power mode (TX output power up to +8 dBm).The external host application processor, where the application resides, is interfaced with the BlueNRG-MS through an application controller interface protocol which is based on astandard SPI interface.BlueNRG-MS主要特性: Bluetooth specification v4.1 compliant masterand slave single-mode Bluetooth low energynetwork processor Embedded Bluetooth low energy protocolstack: GAP,GATT,SM,L2CAP,LL,RF-PHY Bluetooth low energy profiles providedseparately Operating supply voltage: from 1.7 to 3.6 V 8.2 mA maximum TX current (0 dBm, 3.0 V) Down to 1.7 A current consumption withactive BLE stack Integrated linear regulator and DC-DC stepdownconverter Up to +8 dBm available output power (atantenna connector) Excellent RF link budget (up to 96 dB) Accurate RSSI to allow power control Proprietary application controller interface(ACI), SPI based, allows interfacing with anexternal host application microcontroller Full link controller and host security High performance, ultra-low power Cortex-M032-bit based architecture core On-chip non-volatile Flash memory AES security co-processor Low power modes 16 or 32 MHz crystal oscillator 12 MHz ring oscillator 32 kHz crystal oscillator 32 kHz ring oscillator Battery voltage monitor and temperaturesensor Compliant with the following radio frequencyregulations: ETSI EN300 328, EN 300 440,FCC CFR47 Part 15, ARIB STD-T66 Available in QFN32 (5 x 5 mm) and WLCSP34(2.66 x 2.56 mm) packages Operating temperature range: -40 to 85 BlueNRG-MS应用: Watches Fitness, wellness and sports Consumer medical Security/proximity Remote control Home and industrial automation Assisted living Mobile phone peripherals PC peripherals图1.BlueNRG-MS应用框图图2.BlueNRG-MS应用电路图:起作用DC/DC转换器,QFN32封装图3.BlueNRG-MS应用电路图:不起作用DC/DC转换器,QFN32封装图4.BlueNRG-MS应用电路图:起作用DC/DC转换器,WLCSP封装图5.BlueNRG-MS应用电路图:不起作用DC/DC转换器,WLCSP封装低功耗蓝牙评估板X-NUCLEO-IDB04A1The X-NUCLEO-IDB04A1 is a Bluetooth low energy evaluation board to allow expansion of the STM32 Nucleo boards. It is compatible with the Arduino UNO R3 connector layout, and is designed around BlueNRG, a Bluetooth low energy, low power network coprocessor compliant with BTLE 4.0 and the BALF-NRG-01D3, an ultra miniaturebalun optimized for ST BlueNRG RF IC, which integrates matching network and harmonics filter. The X-NUCLEO-IDB04A1 interfaces with the STM32 MCU via SPI pin, and the user can change the default SPI clock, the SPI chip select and SPI IRQ by changing one resistor on the evaluation board. The excellent performance of BlueNRGand the best matching between BlueNRG and BALF-NRG-01D3, X-NUCLEO-IDB04A1 passed the RF TEST for Japan Radio Law certification with higher margin above the specification values as well as it is FCC certified (FCC ID: S9NIDB04A1).图6.低功耗蓝牙评估板X-NUCLEO-IDB04A1外形图低功耗蓝牙评估板X-NUCLEO-IDB04A1主要特性:BlueNRG low power, low energy Bluetooth network coprocessorBALF-NRG-01D3 balun& harmonic filterFree comprehensive development firmware library and example for BlueNRG, compatible with STM32C