SimpleLink video: [ Ссылка ]
BAW video: [ Ссылка ]
Product link: [ Ссылка ]
This week's EYE on NPI is a family of fresh wireless microcontrollers from TI that recently got a cute new update. The CC2652RB is the latest addition to the CC2652/CC1352 family, which a cool twist: there's no external crystals required for this 2.4GHz radio, the built in oscillator is temperature compensated and precise enough to keep the radio tuned! ([ Ссылка ]) While researching it, I ended up looking up the rest of the family, so let's introduce them.The CC2652RB is the latest iteration of the CC2652R ([ Ссылка ]), which is the little sister to the CC1352R ([ Ссылка ]). These are part of the TI SimpleLink wireless family of chips - combining a Cortex M4 main processor with a wireless radio subprocessor, in one chip, for ultra-small and ultra-integrated wireless devices. TI has been developing chips in the CC wireless family for years, and they have a substantial segment of the market for WiFi, BLE, ZigBee, sub-GHz, etc. SimpleLink wireless is TI's API/IDE that builds on the MSP43x series of microcontrollers with wireless hardware tacked on so you can reuse the main application code, while changing the underlying protocol and transport. This is handy for IoT products because its common to design a product for WiFi or ZigBee and then release a version that is BLE. We have a video all about IoT protocols and transports if you'd like to familiarize yourself with the design decisions and trade-offs you'll face ([ Ссылка ])Let's check out the deets on this microcontroller set:
Texas Instruments' CC2652RB SimpleLink multiprotocol 2.4 GHz wireless crystal-less MCU with integrated TI bulk acoustic wave (BAW) resonator technology supporting Thread, Zigbee®, Bluetooth® 5.1 low energy, IEEE 802.15.4, IPv6-enabled smart objects (6LoWPAN), proprietary systems including the TI 15.4-Stack (2.4 GHz), and concurrent multiprotocol operation through the dynamic multiprotocol manager (DMM) software driver. Integrated BAW resonator technology eliminates the need for external crystals without compromising latency or frequency stability. The CC2652RB device is optimized for low-power wireless communication and advanced sensing in building security systems, HVAC systems, medical, power tools, wired networking, portable electronics, home theater and entertainment, and connected peripheral markets.
Microcontroller
Powerful 48-MHz Arm® Cortex®-M4F processor
EEMBC CoreMark® score: 148
352KB of in-system Programmable Flash
256KB ROM for protocols and library functions
8KB Cache SRAM (Alternatively available as general-purpose RAM)
80KB of ultra-low leakage SRAM. The SRAM is protected by parity to ensure high reliability of operation.
2-Pin cJTAG and JTAG debugging
Supports Over-the-Air upgrade (OTA)
Ultra-low power sensor controller with 4KB of SRAM
Sample, store, and process sensor data
Operation independent from system CPU
Fast wake-up for low-power operation
TI-RTOS, drivers, Bootloader, Bluetooth® 5.1 Low Energy Controller, and IEEE 802.15.4 MAC in ROM for optimized application size
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
The CC2652RB Launchpad eval board is available at 296-LP-CC2652RB-ND ([ Ссылка ]) There's a great educational tutorial system called SimpleLink Academy that will take you through setting up the Launchpad as well as teaching you core wireless and BLE concepts!
You can pick up the CC2652RB chips themselves from Digi-Key using part number 296-CC2652RB1FRGZRCT-ND ([ Ссылка ])
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