Fanstel BluNor BT840XEE Manual de usuario
BLE 5 Modules, BT840XEE
Ver0.99Sep.2022
1
BluNor BT840XEE is a powerful, highly flexible, ultra low power Bluetooth Low Energy (BLE) using Nordic nRF52840 SoC. With
an ARM
Cortex
TM
M4F MCU, available 1MB flash, 256KB RAM, embedded 2.4GHz multi-protocol transceiver and a power
amplifier. An u.FL and an MCX connectors for external antenna connection. It allows faster time to
market with reduced development cost.
Bluetooth ranges are measured in environments with Low Multiple Path Interference (LMPI) and
antenna at 5 feet (1.52 meters), typical height of thermostat in the USA. Ranges for LMPI,
correlating to actual link budget, indicate the Bluetooth signal strength for penetrating walls in
buildings.
Specifications:
•
nRF52840 QIAA, ARM Cortex M4F, 64 MHz
•
ARM® TrustZone® Cryptocell-310 co-processor
•
Skyworks power amplifier SKY66112
•
Complete RF solution with integrated antenna
•
BLE 5 data rate: 2Mbps, 1Mbps, 500kbps,125kbps.
•
DC-DC converter, inductors on board.
•
Serial Wire Debug (SWD)
•
Nordic SoftDevice Ready
•
Over-the-Air (OTA) firmware update
•
Flash/RAM: 1MB/256KB.
•
45 General purpose I/O pins
•
USB 2.0 full speed (12 Mbps) controller
•
QSPI 32 MHz interface
•
High speed 32 MHz SPI
•
Type 2 NFC-A tag with wake-on field, Touch-to-pair support
•
Programmable peripheral interconnect (PPI)
•
12 bit/200 Ksps ADC, 8 configurable channels with
programmable gain
•
64 level comparator
•
15 level comparator with wake-up from OFF.
•
Temperature sensor
•
4x4-channel pulse width modulator (PWM)
•
Audio peripherals: I2S, digital microphone interface (PDM)
•
5 x 32 bit timers with counter mode
•
Up to 4x SPI masters/3x SPI slaves
•
Up to 2x I2C compatible 2-wire masters/slaves
•
2x UART (CTS/RTS)
•
Quadrature Demodulator (QDEC)
•
3x real time counters (RTC)
•
128-bit AES HW encryption
•
SoC Receiver Sensitivity: -96 dBm at 1Mbps
•
SoC TX power: programmable +8dBm to -20dBm. Up to +6
dBi antenna gain.
•
Hybrid pins: 16 castellated and 45 LGA.
•
1 u.FL connector and 1 MCX connector
•
Operation voltage: 1.7V to 5.5V
•
Operation temperature: - 4 0 ° C t o + 8 5 ° C
•
QDID: 108621,182626
Model Summaries
module
BT840XEE
SoC
nRF52840-QIAA
Size
15x28.0x1.9mm
BT Antenna
PA+u.FL+MCX
Max TX, radiated
32.768 sleep crystal
Integrated
BT range,1 Mbps, LMPI
>1170 meters
BT range, 1Mbps, 1.52m
>1170 meters
BT range, 125 Kbps, LMPI.
>4500 meters
BT range, 125 kBps, 1.52m
>1920 meters
FCC ID
Canada IC ID
Europe CE, Australia RCM
Japan TELEC
Korea KCC
Taiwan NCC
BLE 5 Modules, BT840XEE Ver0.99Sep.2022
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Brazil ANTEL
Availability Production
1. Introduction
BluNor BT840XEE module is powerful, highly flexible, ultra low power wireless modules using Nordic nRF52840 SoCs.
With an ARM CortexTM M4F MCU, 1MB flash, 256KB RAM, embedded 2.4GHz multi-protocol transceiver, and an
integrated antenna, it allows faster time to market with reduced development cost.
The following is a block diagram of BT840XEE. The main clock and the sleep clock are integrated. All 45 GPIOs of
nRF52840 can be accessed from main board. Connection to an external NFC (Near Field Communication) antenna is
provided.
BT840XEE
•Uses an nRF52840 QIAA with Cortex M4F MCU
•1MB flash, 256 KB RAM
•Supports NFC
•Integrated SKY66112 power amplifier.
•Integrated 32.768 KHz sleep crystal.
•An u.FL connector for external antenna, a second MCX connector for external antenna.
BLE 5 Modules, BT840XEE Ver0.99Sep.2022
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•Size: 15x28x1.9mm.
BLE 5 Modules, BT840XEE Ver0.99Sep.2022
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2. Codes Development Using Nordic Tools
Development tools by Nordic and other third party development tools recommended by Nordic should be used.
Nordic development environment for nRF52840 offers a clean separation between application code development and
embedded protocol stacks. This means compile, link and run time dependencies with the embedded stack and associated
debugging challenges are removed. The Bluetooth low energy and ANT stack is a pre-compiled binary, leaving
application code to be compiled stand-alone. The embedded stack interface uses an asynchronous and event driven model
removing the need for RTOS frameworks.
Over-The-Air DFU
The nRF52840 is supported by an Over-The-Air Device Firmware Upgrade (OTA DFU) feature. This allows for in the
field updates of application software and SoftDevice.
SoftDevices
The Nordic protocol stacks are known as SoftDevices and complement the nRF52 Series SoCs. All nRF52 Series are
programmable with software stacks from Nordic. This bring maximum flexibility to application development and allows
the latest stack version to be programmed into the SoC.
SoftDevices available from Nordic:
S140: Bluetooth low energy concurrent central/peripheral/observer/broadcaster stack.
Development Tools
Nordic Semiconductor provides a complete range of hardware and software development tools for the nRF52 Series
devices. nRF52 DK board is recommended for firmware development.
Nordic software development tools can be downloaded from the following webpage.
http://infocenter.nordicsemi.com/index.jsp?topic=/com.nordic.infocenter.nrf52/dita/nrf52/development/nrf52_dev_kit.htm
l&cp=1_1
BLE 5 Modules, BT840XEE Ver0.99Sep.2022
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3. Product Descriptions
Brief description of nRF52840 SoC is provided. For full description of the SoC, please download from Nordic
Semiconductor website.
https://www.nordicsemi.com/eng/Products/Bluetooth-low-energy
Block Diagram of nRF52840
The following is a block diagram of Nordic nRF52840 Bluetooth Low Energy (BLE) SoC. Arrows with white heads
indicate signals that share physical pins with other signals.
BLE 5 Modules, BT840XEE Ver0.99Sep.2022
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The 32 bit ARM Cortex M4F MCU with hardware supports for DSP instructions and floating point operations, code
density and execution speed are higher than other Cortex M MCU. The Programmable Peripheral Interconnect (PPI)
system provides a 20-channel bus for direct and autonomous system peripheral communication without CPU intervention.
This brings predictable latency times for peripheral to peripheral interaction and power saving benefits associated with
leaving CPU idle. The device has 2 global power modes ON/OFF, but all system blocks and peripherals have individual
power management control which allows for an automatic switching RUN/IDLE for system blocks based only on those
required/not required to achieve particular tasks.
The radio supports Bluetooth low energy and ANT. Output power is scalable from a maximum of +8dBm down to -20
dBm in 4dB steps. Sensitivity is increased to -96 dBm to -89 dBm, depending on data rate. Sensitivity for BLE is -96
dBm, and -92.5 dBm for ANT.
The NFC block supports NFC-A tags with proximity detection and Wake-on-field from low power mode. The NFC
enables Out-Of-Band (OOB) Bluetooth pairing of devices and thus greatly simplifying deployment.
BLE 5 Modules, BT840XEE Ver0.99Sep.2022
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ARM Trustzone CryptoCell 310
ARM® TrustZone® CryptoCell-310 co-processor is a security subsystem which provides Root of Trust (RoT) and cryptographic
services for a device. CryptoCell services are available to the application through a software library API, not a hardware register
interface.
The following cryptographic features are provided.
•FIPS-140-2 certified True Random Number Generator (TRNG)
•RSA asymmetric encryption
Up to 2048 bit key size
PKCS#1 v2.1/v1.5
Optional CRT support
•Elliptic curve cryptography (ECC)
NIST FIPS 186-4 recommended curves using pseudo-random parameters, up to 521 bits:
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➢Prime field: P-192, P-224, P-256, P-384, P-521
SEC 2 recommended curves using pseudo-random parameters, up to 521 bits:
➢Prime field: P-160, P-192, P-224, P-256, P-384, P-521
Koblitz curves using fixed parameters, up to 256 bits:
➢Prime field: P-160, P-192, P-224, P-256
Edwards/Montgomery curves:
➢Ed25519, Curve 25519
ECDH/ECDSA support
•Secure remote password protocol (SRP)
Up to 3072 bit operations
•Hashing functions
SHA-1, SHA-2 up to 256 bit size
keyed-hash message authentication code (HMAC)
•AES symmetric encryption
General purpose AES engine (encrypt/decrypt, sign/verify)
128 bit key size
Supported encryption modes: ECB, CBC, CMAC/CBC-MAC, CTR, CCM/CCM*.
•ChaCha20/Poly1305 symmetric encryption
Supported keyed size: 128 and 256 bits
Authenticated encryption with associated data (AEAD) mode
BLE 5 Modules, BT840XEE Ver0.99Sep.2022
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Mechanical Drawings
BT840XEE mechanical drawings
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Pin Assignments of BT840
The followings are BT840 pin assignment. Pin functions are in a table in next section. Please refer to Nordic nRF52840
Product Specifications for detailed descriptions and features supported.
https://www.nordicsemi.com/eng/Products/nRF52840
BT840XEE pin assignments
BT840XEE 52840
pin# pin# pin name Descriptions
1G1 P0.26/SDA GPIO, configured as I2C SDA on EV-BT840
2H2 P0.27/SCL GPIO, configured as I2C SCL on EV-BT840
3D2 P0.00/XL1 GPIO, connection for 32.768kHz crystal
4F2 P0.01/XL2 GPIO, connection for 32.768kHz crystal
5A12 P0.02/AIN0 GPIO, Analog input
6B13 P0.03/AIN1 GPIO, Analog input
7L24 P0.09/NFC1 GPIO, NFC antenna connection
8J24 P0.10/NFC2 GPIO, NFC antenna connection
9B1 VDD DC supply 1.7V to 3.6V
10 B7 GND Ground
11 T2 P0.11 GPIO
12 AD22 P1.00 GPIO
13 AD8 P0.13 GPIO
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