我对Nordic蓝牙芯片的印象

星期六, 22 08月 2020 16:07

我对Nordic蓝牙芯片的印象 ^精

今天看了一下Nordic蓝牙芯片的技术和产品介绍，很受触动，有几个方面印象特别深刻：

1.一系列的协议栈（Nordic 称为：SoftDevices）：S112,S113,S122,S132,S140,S212,S312,S332,S340;

2.PPI事件系统：programmable peripheral interconnect (PPI) ；

3.柔性正交电源管理系统（flexible orthogonal power management system）；

4.EasyDMA;

5.内存缓存技术Memory Cache；

6.硬件保护；

7.丰富的接口；

8.参数归类比较，一目了然。

从中可感受到Nordic对于其产品和技术的用心和专心。

nRF52系列IC对比

Features		nRF52805	nRF52810	nRF52811	nRF52820	nRF52832	nRF52833	nRF52840
CPU		Cortex-M4	Cortex-M4	Cortex-M4	Cortex-M4	Cortex-M4 with FPU	Cortex-M4 with FPU	Cortex-M4 with FPU
CPU		64 MHz	64 MHz	64 MHz	64 MHz	64 MHz	64 MHz	64 MHz

Memory 内存		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 最大位长	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加密		AES engine	AES engine	AES engine	AES engine	AES engine	AES engine	AES engine
Crypto加密		-	-	-	-	-	-	CryptoCell™310

Radio 无线电	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)

时钟		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

电源管理		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

数字接口		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)

模拟接口		-	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

计数器		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)

其它接口		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

其它特性		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

电源失效保护		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
GPIO		8 × GPIOTEs channels	8 × GPIOTEs channels	8 × GPIOTEs channels	8 × GPIOTEs channels	8 × GPIOTEs channels	8 × GPIOTEs channels	8 × GPIOTEs channels

包装		-	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

工作温度		-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

查看 17618 次最后修改日期星期六, 19 09月 2020 23:41

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