CC2642RSimpleLink Bluetooth 5低功耗无线MCU开发方案

TI公司的CC2642R是SimpleLink™ Bluetooth® 5低功耗无线MCU，具有成本效率超低功耗，2.4GHz和亚GHz RF器件，具有非常低的工作RF和微处理器（MCU）电流，以及亚μA睡眠电流和高达80KB奇偶保护的RAM，具有极好电池寿命，允许用小型钮扣电池工作，可在能量收获中应用.CC2642R组合了灵活非常低的RF收发器和功能强大的48MHz Arm® Cortex®-M4F CPU，支持多种物理层和RF标准。专用的无线电控制器（Arm® Cortex®-M0）处理存储在ROM或RAM的低级射频（RF）协议指令，因此保证了超低功耗，并具有极大灵活性.CC2642R是包含了完整的RF系统和片上DC/DC转换器的高度集成的真正单片解决方案，具有极好的灵敏度和鲁棒性能（灵敏度和阻塞度）。工作电压1.8 V 到 3.8 V，主要用在消费类电子，手机附件，运动和健美设备，HID应用，医疗设备，智能电网和自动化仪表，家庭和建筑物自动化，无线告警和安全系统，工业监测和控制，无线健康应用，无线传感器网络，有源RFID，能量收集应用，长距离传感器应用和电子货架标签（ESL）。本文介绍了CC2642R主要特性，功能框图，以及SimpleLink™ CC26x2R无线MCU LaunchPad™开发板主要特性，电路图和材料清单与PCB设计图。

The CC2642R device is a member of the SimpleLink™ MCU platform of cost-effective， ultra-low power，2.4-GHz and Sub-1 GHz RF devices. Very low active RF and microcontroller （MCU） currents， in additionto sub-μA sleep current with up to 80KB of parity protected RAM retention， provide excellent batterylifetime and allow operation on small coin-cell batteries and in energy-harvesting applications.

The CC2642R device combines a flexible， very low-power RF transceiver with a powerful 48 MHz Arm®Cortex®-M4F CPU in a platform supporting multiple physical layers and RF standards. A dedicated RadioController （Arm® Cortex®-M0） handles low-level RF protocol commands that are stored in ROM or RAM，thus ensuring ultra-low power and great flexibility. The low power consumption of the CC2642R devicedoes not come at the expense of RF performance; the CC2642R device has excellent sensitivity androbustness （selectivity and blocking） performance.

The CC2642R device is a highly integrated， true single-chip solution incorporating a complete RF systemand an on-chip DC/DC converter.

Sensors can be handled in a very low-power manner by a programmable， autonomous ultra-low powerSensor Controller CPU with 4KB of SRAM for program and data. The Sensor Controller， with its fastwake-up and ultra-low-power 2 MHz mode is designed for sampling， buffering， and processing bothanalog and digital sensor data; thus the MCU system can maximize sleep time and reduce active power.

The CC2642R device is part of the SimpleLink™ microcontroller （MCU） platform， which consists ofWi-Fi®， Bluetooth® Low Energy， Thread， Zigbee， Sub-1 GHz MCUs， and host MCUs， which all share acommon， easy-to-use development environment with a single core software development kit （SDK） andrich tool set. A one-time integration of the SimpleLink platform enables you to add any combination of theportfolio’s devices into your design， allowing 100 percent code reuse when your design requirementschange.

CC2642R主要特性：

• Microcontroller

– Powerful 48-MHz Arm® Cortex®-M4F Processor

– EEMBC CoreMark® score： 148

– 352KB of in-system Programmable Flash

– 256KB of ROM for protocols and libraryfunctions

– 8KB of Cache SRAM （Alternatively available asgeneral-purpose RAM）

– 80KB of ultra-low leakage SRAM with parity

– 2-Pin cJTAG and JTAG debugging

– Supports Over-the-Air upgrade （OTA）

• Ultra-Low Power Sensor Controller with 4KB ofSRAM

– Sample， store， and process sensor data

– Operation independent from system CPU

– Fast wake-up for low-power operation

• TI-RTOS， drivers， Bootloader， Bluetooth® 5 LowEnergy Controller in ROM for optimized applicationsize

• RoHS-compliant package

– 7-mm × 7-mm RGZ VQFN48 （31 GPIOs）

• Peripherals

– Digital peripherals can be routed to any GPIO

– 4× 32-bit or 8× 16-bit general-purpose timers

– 12-Bit ADC， 200 kSamples/s， 8 channels

– 2× comparators with internal reference DAC（1× continuous time， 1× ultra-low power）

– Programmable current source

– 2× UART

– 2× SSI （SPI， MICROWIRE， TI）

– I2C

– I2S

– Real-Time Clock （RTC）

– AES 128- and 256-bit Crypto Accelerator

– ECC and RSA Public Key Hardware Accelerator

– SHA2 Accelerator （Full suite up to SHA-512）

– True Random Number Generator （TRNG）

– Capacitive sensing， up to 8 channels

– Integrated temperature and battery monitor

• External system

– On-chip Buck DC/DC Converter

• Low Power

– Wide supply voltage range： 1.8 V to 3.8 V

– Active-Mode RX： 6.9 mA

– Active-Mode TX 0 dBm： 7.3 mA

– Active-Mode TX 5 dBm： 9.6 mA

– Active-Mode MCU 48 MHz （CoreMark）：

3.4 mA （71 μA/MHz）

– Sensor Controller， Low Power-Mode， 2 MHz，running infinite loop： 30.8 μA

– Sensor Controller， Active-Mode， 24 MHz，running infinite loop： 808 μA

– Standby： 0.94 μA （RTC on， 80KB RAM andCPU retention）

– Shutdown： 150 nA （wakeup on external events）

• Radio section

– 2.4-GHz RF transceiver compatible withBluetooth 5 Low Energy

– Excellent receiver sensitivity：

–105 dBm for Bluetooth 125-kbps （LE CodedPHY）

–97 dBm for 1-Mbps PHY

– Output power up to +5 dBm with temperaturecompensation

– Suitable for systems targeting compliance withworldwide radio frequency regulations

– EN 300 328， （Europe）

– EN 300 440 Category 2

– FCC CFR47 Part 15

– ARIB STD-T66 （Japan）

• Development Tools and Software

– CC26x2 LaunchPad™ Development Kit

– SimpleLink™ CC13X2-CC26X2 SoftwareDevelopment Kit

– SmartRF™ Studio for simple radio configuration

– Sensor Controller Studio for building low-powersensing applications

CC2642R应用：

• Consumer electronics

• Mobile phone accessories

• Sports and fitness equipment

• HID applications

• Medical

• Smart grid and automatic meter reading

• Home and building automation

• Wireless alarm and security systems

• Industrial monitoring and control

• Wireless healthcare applications

• Wireless sensor networks

• Active RFID

• Energy harvesting applications

• Electronic Shelf Label （ESL）

• Long-range sensor applications

图1.CC2642R功能框图

图2.SimpleLink™ CC26x2R无线MCU LaunchPad™开发板外形图

图3.LaunchPad™开发板电路图（1）

图4.LaunchPad™开发板电路图（2）

图5.LaunchPad™开发板电路图（3）

图6.LaunchPad™开发板电路图（4）

图7.LaunchPad™开发板电路图（5）

图8.LaunchPad™开发板电路图（6）

图9.LaunchPad™开发板电路图（7）

图10.LaunchPad™开发板PCB设计图（1）

图11.LaunchPad™开发板PCB设计图（2）

图12.LaunchPad™开发板PCB设计图（3）

图13.LaunchPad™开发板PCB设计图（4）

图14.LaunchPad™开发板PCB设计图（5）

图15.LaunchPad™开发板PCB设计图（6）

图16.LaunchPad™开发板PCB设计图（7）

图17.LaunchPad™开发板PCB设计图（8）

图18.LaunchPad™开发板PCB设计图（9）

图19.LaunchPad™开发板PCB设计图（10）