星期一, 24 08月 2020 08:18

Nordic Softdevice (Bluetooth Stack) S112,S113,S122,S132

S112,S113,S132:
 Bluetooth 5.1 compliant single-mode Bluetooth Low Energy protocol stack
 
S122
Bluetooth 5.2 compliant single-mode Bluetooth Low Energy protocol stack
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栏目 低功耗协议栈
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My opinion about Nordic bluetooth chip technology

My opinion about Nordic bluetooth chip technology

The nRF52 Series of System-on-Chip (SoC) devices embed a powerful yet low-power Arm® Cortex®-M4 processor with our industry leading 2.4 GHz RF transceivers. In combination with the very flexible orthogonal power management system, and a programmable peripheral interconnect (PPI) event system, the nRF52 Series enables you to make ultra-low power wireless solutions.

The nRF52 Series offers pin-compatible device options for Bluetooth® Low Energy, proprietary 2.4 GHz, and ANT™ solutions giving you the freedom to develop your wireless system using the technology that suits your application the best. Our unique memory and hardware resource protection system allows you to develop applications on devices with embedded protocol stacks running on the same processor without any need to link in the stack or strenuous testing to avoid application and stack from interfering with each other.

nRF52 Series IC comparison

FeaturesnRF52805nRF52810nRF52811nRF52820nRF52832nRF52833nRF52840
CPU Cortex-M4 Cortex-M4 Cortex-M4 Cortex-M4 Cortex-M4 with FPU Cortex-M4 with FPU Cortex-M4 with FPU
64 MHz 64 MHz 64 MHz 64 MHz 64 MHz 64 MHz 64 MHz
 
Memory 192 kB flash 192 kB flash 192 kB flash 256 kB flash 512/256 kB flash 512 kB flash 1 MB flash
- - - - Cache Cache Cache
24 kB RAM 24 kB RAM 24 kB RAM 32 kB RAM 64/32 kB RAM 128 kB RAM 256 kB RAM
 
EasyDMA MAXCNT bit length I2S - - - - 14 14 14
PDM - 15 15 - 15 15 15
PWM - 15 15 - 15 15 15
RADIO 8 8 8 8 8 8 8
SAADC - 15 15 - 15 15 15
SPIM 14 10 14 15 8 16 16
SPIS 14 10 14 15 8 16 16
TWIM 14 10 14 15 8 16 16
TWIS 14 10 14 15 8 16 16
UARTE 10 10 10 15 8 16 16
NFCT - - - - 9 9 9
USBD - - - 7 - 7 7
QSPI - - - - - - 20
 
Crypto AES engine AES engine AES engine AES engine AES engine AES engine AES engine
- - - - - - CryptoCell™310
 
Radio Protocols Bluetooth Low Energy/ANT/2.4 GHz Bluetooth Low Energy/ANT/2.4 GHz Bluetooth Low Energy/ANT/2.4 GHz/IEEE 802.15.4 Bluetooth Low Energy/Bluetooth mesh/Thread/ Zigbee/ANT/2.4 GHz/IEEE 802.15.4 Bluetooth Low Energy/Bluetooth mesh/ANT/2.4 GHz Bluetooth Low Energy/Bluetooth mesh/Thread/ Zigbee/ANT/2.4 GHz/IEEE 802.15.4 Bluetooth Low Energy/Bluetooth mesh/Thread/ Zigbee/ANT/2.4 GHz/IEEE 802.15.4
Bluetooth 5 PHYs 2 Mbps 2 Mbps 2 Mbps/Long range 2 Mbps/Long range 2 Mbps 2 Mbps/Long range 2 Mbps/Long range
Bluetooth 5.1 support - - Yes Yes - Yes -
Output power +4 dBm +4 dBm +4 dBm +8 dBm +4 dBm +8 dBm +8 dBm
Sensitivity -97 dBm (Bluetooth 1 Mbps) -96 dBm (Bluetooth 1 Mbps) -97 dBm (Bluetooth 1 Mbps) -95 dBm (Bluetooth Low Energy 1 Mbps) -96 dBm (Bluetooth Low Energy 1 Mbps) -95 dBm (Bluetooth Low Energy 1 Mbps) -95 dBm (Bluetooth Low Energy 1 Mbps)
 
Clock 32 MHz crystal 32 MHz crystal 32 MHz crystal 32 MHz crystal 32 MHz crystal 32 MHz crystal 32 MHz crystal
64 MHz on chip (PLL) 64 MHz on chip (PLL) 64 MHz on chip (PLL) 64 MHz on chip (PLL) 64 MHz on chip (PLL) 64 MHz on chip (PLL) 64 MHz on chip (PLL)
32.768 kHz crystal (optional) 32.768 kHz crystal (optional) 32.768 kHz crystal (optional) 32.768 kHz crystal (optional) 32.768 kHz crystal (optional) 32.768 kHz crystal (optional) 32.768 kHz crystal (optional)
32.768 kHz on-chip RC 32.768 kHz on-chip RC 32.768 kHz on-chip RC 32.768 kHz on-chip RC 32.768 kHz on-chip RC 32.768 kHz on-chip RC 32.768 kHz on-chip RC
External 32.768 kHz clock External 32.768 kHz clock External 32.768 kHz clock External 32.768 kHz clock External 32.768 kHz clock External 32.768 kHz clock External 32.768 kHz clock
 
Power management 1.7 V to 3.6 V supply voltage 1.7 V to 3.6 V supply voltage 1.7 V to 3.6 V supply voltage 1.7 V to 5.5 V supply voltage
  • 1.7 V to 3.6 V (VDD)
  • 2.5 V to 5.5 V (VDDH)
 1.7 V to 3.6 V supply voltage 1.7 V to 5.5 V supply voltage
  • 1.7 V to 3.6 V (VDD)
  • 2.5 V to 5.5 V (VDDH)
 1.7 V to 5.5 V supply voltage
  • 1.7 V to 3.6 V (VDD)
  • 2.5 V to 5.5 V (VDDH)
1 stage LDO and DC/DC 1 stage LDO and DC/DC 1 stage LDO and DC/DC 2 stage regulator LDO for high voltage and DC/DC or LDO for low voltage 1 stage LDO and DC/DC 2 stage regulator LDO for high voltage and DC/DC or LDO for low voltage 2 stage LDO and DC/DC
- - - On-chip VBUS 3.3 V reg - On-chip VBUS 3.3 V reg On-chip VBUS 3.3 V reg
- - - - - - Regulated supply for external components
 
Digital interfaces 1 × SPI master and slave 1 × SPI master and slave 2 × SPI master and slave 2 × SPI master and slave 3 × SPI master and slave 4 × SPI master and 3 × SPI slave 4 × SPI master and 3 × SPI slave
1 × TWI master and slave 1 × TWI master and slave 1 × TWI master and slave 2 × TWI master and slave 2 × TWI master and slave 2 × TWI master and slave 2 × TWI master and slave
1 × UARTE 1 × UARTE 1 × UARTE 1 × UARTE 1 × UARTE or UART 2 × UARTE 2 × UARTE
- 1 × PWM 1 × PWM - 3 × PWM 4 × PWM 4 × PWM
- QDEC QDEC QDEC QDEC QDEC QDEC
- PDM PDM - PDM PDM PDM
- - - - I2S I2S I2S
- - - 1 × USB Full-speed device - 1 × USB Full-speed device 1 × USB Full-speed device
- - - - - 1 × high-speed SPI master 1 × high-speed SPI master
- - - - - - 1 × Quad SPI (w.XIP)
 
Analog interfaces - 64-level analog comp 64-level analog comp 64-level analog comp 64-level analog comp 64-level analog comp 64-level analog comp
- - - - 15-level low-power comp 15-level low-power comp 15-level low-power comp
2-channel 12-bit ADC 8-channel 12-bit ADC 8-channel 12-bit ADC - 8-channel 12-bit ADC 8-channel 12-bit ADC 8-channel 12-bit ADC
- - - - NFC Tag NFC Tag NFC Tag
True Random Number Generator True Random Number Generator True Random Number Generator True Random Number Generator True Random Number Generator True Random Number Generator True Random Number Generator
Temperature sensor Temperature sensor Temperature sensor Temperature sensor Temperature sensor Temperature sensor Temperature sensor
 
Timers 3 × 32-bit 16 MHz timers 3 × 32-bit 16 MHz timers 3 × 32-bit 16 MHz timers 4 × 32-bit 16 MHz timers 5 × 32-bit 16 MHz timers 5 × 32-bit 16 MHz timers 5 × 32-bit 16 MHz timers
2 × 32.768 kHz RTC 2 × 32.768 kHz RTC 2 × 32.768 kHz RTC 2 × 32.768 kHz RTC 3 × 32.768 kHz RTC 3 × 32.768 kHz RTC 3 × 32.768 kHz RTC
Watchdog timer (32.768 kHz) Watchdog timer (32.768 kHz) Watchdog timer (32.768 kHz) Watchdog timer (32.768 kHz) Watchdog timer (32.768 kHz) Watchdog timer (32.768 kHz) Watchdog timer (32.768 kHz)
 
Other interfaces SWI debug interface SWI debug interface SWI debug interface SWI debug interface SWI debug interface SWI debug interface SWI debug interface
 
PPI 10 programmable channels 20 programmable channels 20 programmable channels 20 programmable channels 20 programmable channels 20 programmable channels 20 programmable channels
12 fixed channels 12 fixed channels 12 fixed channels 12 fixed channels 12 fixed channels 12 fixed channels 12 fixed channels
6 channel groups 6 channel groups 6 channel groups 6 channel groups 6 channel groups 6 channel groups 6 channel groups
 
Other features BPROT BPROT BPROT BPROT BPROT ACL ACL
6 × SWI 6 × SWI 6 × SWI 6 × SWI 6 × SWI 6 × SWI 6 × SWI
2 × EGU 2 × EGU 2 × EGU 6 × EGU 6 × EGU 6 × EGU 6 × EGU
- - - - MWU MWU MWU
 
Power fail Power fail comparator and brownout Power fail comparator and brownout Power fail comparator and brownout Power fail comparator and brownout Power fail comparator and brownout Power fail comparator and brownout Power fail comparator and brownout
 
GPIO Up to 10 pins Up to 32 pins Up to 32 pins Up to 18 pins Up to 32 pins Up to 42 pins Up to 48 pins
8 × GPIOTEs channels 8 × GPIOTEs channels 8 × GPIOTEs channels 8 × GPIOTEs channels 8 × GPIOTEs channels 8 × GPIOTEs channels 8 × GPIOTEs channels
 
Packages - 6 × 6 QFN48 w/32 GPIOs 6 × 6 QFN48 w/32 GPIOs - 6 × 6 QFN48 w/32 GPIOs 7 × 7 AQFN73 w/42 GPIOs 7 × 7 AQFN73 w/48 GPIOs
- 5 × 5 QFN32 w/17 GPIOs 5 × 5 QFN32 w/17 GPIOs 5 × 5 QFN40 w/18 GPIOs and USB - 5 × 5 QFN40 w/18 GPIOs & USB -
2.5 × 2.5 WLCSP w/10 GPIOs 2.5 × 2.5 WLCSP w/15 GPIOs 2.5 × 2.5 WLCSP w/15 GPIOs - 3.0 × 3.2 WLCSP w/32 GPIOs & USB 3.2 × 3.2 WLCSP w/42 GPIOs & USB 3.5 × 3.5 WLCSP w/48 GPIOs
 
Temperature -40 to 85°C -40 to 85°C -40 to 85°C -40 to 105°C -40 to 85°C -40 to 105°C -40 to 85°C
栏目 技术文章
星期五, 21 08月 2020 21:27

Nordic S113 SoftDevice

Memory-optimized Peripheral-only Bluetooth Low Energy protocol stack
The S113 SoftDevice is a Bluetooth® Low Energy peripheral protocol stack solution. It supports up to four peripheral connections with an additional broadcaster role running concurrently. The S113 SoftDevice integrates a Bluetooth Low Energy Controller and Host, and provides a full and flexible API for building Bluetooth Low Energy Nordic nRF52 System on Chip solutions.
SoftDevice S113 is a memory-optimized Bluetooth® Low Energy protocol stack for the Nordic nRF52805, nRF52810, nRF52811, nRF52820, nRF52832, nRF52833 and nRF52840 System-on-Chips (SoCs). It is Bluetooth 5.1 qualified and supports the following Bluetooth features: high-throughput 2 Mbps and channel selection algorithm 2 (CSA #2). The number of connections and bandwidth per connection are configurable, offering memory and performance optimization.
It is a complete stack with GAP, GATT, ATT, SM and Link Layer. Both GATT Server and Client are supported. The broad feature set also includes Privacy 1.2, LE Data Packet Length Extension, L2CAP connection-oriented channels, configurable ATT MTU and LE Secure Connections.
 
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蓝牙为啥叫“蓝”牙？就不能叫白牙吗？

蓝牙为啥叫“蓝”牙？就不能叫白牙吗？

整天说蓝牙、用蓝牙，那蓝牙究竟是个啥呢？这事得从一位丹麦国王说起。

栏目 科普知识
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传统蓝牙HCI流控（HCI flow control）

传统蓝牙HCI流控（HCI flow control）

流控制用于在主机和主机控制器之间，避免传送到主机控制器的未应答远程设备的 ACL 数据溢出主机控制器数据缓冲区。主机（蓝牙协议栈）负责管理主机控制器（蓝牙芯片）的数据缓冲区。流控分为两种：

1）蓝牙协议栈到蓝牙芯片的流控

2）蓝牙芯片到蓝牙协议栈的流控

栏目 技术文章
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