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  1. u乐国际娱乐官网 >  解决方案 >  [原创] ST STM32F446物联网(IoT)应用方案

[原创] ST STM32F446物联网(IoT)应用方案

关键词:ARM Cortex-M4 MCU 物联网(IoT) 马达驱动 工业应用 医疗电子 时间:2018-01-24 10:35:55       作者:ST       来源:u乐国际娱乐官网

ST公司的STEVAL-BCNKT01V1是用于物联网(IoT)应用的增强声音和运动检测的开发和原型平台,采用高性能的STM32F446 180 MHz MCU可以实时非常先进的传感器融合算法如自适应波束成型和声源,而入门板BlueCoin则可实现先进的传感器融合和信号处理功能,可用于机器人和自动化应用,具有4个数字MEMS麦克风阵列,一个高性别能9轴惯性和环境传感器单元以及飞行时间测距传感器.本文介绍了STM32F446xC/E MCU主要特性和框图,评估板STEVAL-BCNKT01V1主要特性,BlueCoin功能框图,STEVAL-BCNST01V1主板电路图和STEVAL-BCNS01V1电路图,以及材料清单.

The STM32F446xC/E devices are based on the high-performance ARM® Cortex®-M4 32-bit RISC core operating at a frequency of up to 180 MHz. The Cortex-M4 core features a Floating point unit (FPU) single precision which supports all ARM® single-precision data-processing instructions and data types. It also implements a full set of DSP instructions and a memory protection unit (MPU) which enhances application security.

The STM32F446xC/E devices incorporate high-speed embedded memories (Flash memory up to 512 Kbyte, up to 128 Kbyte of SRAM), up to 4 Kbytes of backup SRAM, and an extensive range of enhanced I/Os and peripherals connected to two APB buses, two AHB buses and a 32-bit multi-AHB bus matrix.

All devices offer three 12-bit ADCs, two DACs, a low-power RTC, twelve general-purpose 16-bit timers including two PWM timers for motor control, two general-purpose 32-bit timers.

They also feature standard and advanced communication interfaces.

• Up to four I2Cs;
• Four SPIs, three I2Ss full simplex. To achieve audio class accuracy, the I2S peripherals can be clocked via a dedicated internal audio PLL or via an external clock to allow synchronization;
• Four USARTs plus two UARTs;
• An USB OTG full-speed and an USB OTG high-speed with full-speed capability (with the ULPI), both with dedicated power rails allowing to use them throughout the entire power range;
• Two CANs;
• Two SAIs serial audio interfaces. To achieve audio class accuracy, the SAIs can be clocked via a dedicated internal audio PLL;
• An SDIO/MMC interface;
• Camera interface;
• HDMI-CEC;
• SPDIF Receiver (SPDIFRx);
• QuadSPI.

Advanced peripherals include an SDIO, a flexible memory control (FMC) interface, a camera interface for CMOS sensors.

The STM32F446xC/E devices operates in the –40 to +105℃ temperature range from a 1.7 to 3.6 V power supply.

The STM32F446xC/E devices offer devices in 6 packages ranging from 64 pins to 144 pins. The set of included peripherals changes with the device chosen.

STM32F446主要特性:

• Core: ARM® 32-bit Cortex®-M4 CPU with FPU, Adaptive real-time accelerator (ART Accelerator™) allowing 0-wait state execution from Fl ash memory,frequency up to 180 MHz, MPU, 225 DMIPS/1.25 DMIPS/MHz (Dhrystone 2.1),and DSP instructions
• Memories
– 512 kB of Flash memory
– 128 KB of SRAM
– Flexible external memory controller with up to 16-bit data bus: SRAM,PSRAM,SDRAM/LPSDR SDRAM, Flash NOR/NAND memories
– Dual mode Quad SPI interface
• LCD parallel interface, 8080/6800 modes
• Clock, reset and supply management
– 1.7 V to 3.6 V application supply and I/Os
– POR, PDR, PVD and BOR
– 4-to-26 MHz crystal oscillator
– Internal 16 MHz factory-trimmed RC (1% accuracy)
– 32 kHz oscillator for RTC with calibration
– Internal 32 kHz RC with calibration
• Low power
– Sleep, Stop and Standby modes
– VBAT supply for RTC, 20×32 bit backup registers + optional 4 KB backup SRAM
• 3×12-bit, 2.4 MSPS ADC: up to 24 channels and 7.2 MSPS in triple interleaved mode
• 2×12-bit D/A converters
• General-purpose DMA: 16-stream DMA controller with FIFOs and burst support
• Up to 17 timers: 2x watchdog, 1x SysTick timer and up to twelve 16-bit and two 32-bit timers up to 180 MHz, each with up to 4 IC/OC/PWM or pulse counter
• Debug mode
– SWD & JTAG interfaces – Cortex® -M4 Trace Macrocell™
• Up to 114 I/O ports with interrupt capability
– Up to 111 fast I/Os up to 90 MHz
– Up to 112 5 V-tolerant I/Os
• Up to 20 communication interfaces
– SPDIF-Rx
– Up to 4 × I2C interfaces (SMBus/PMBus)
– Up to 4 USARTs/2 UARTs (11.25 Mbit/s, ISO7816 interface, LIN, IrDA, modem control)
– Up to 4 SPIs (45 Mbits/s), 3 with muxed I2S for audio class accuracy via internal audio PLL or external clock
– 2 x SAI (serial audio interface)
– 2 × CAN (2.0B Active)
– SDIO interface
– Consumer electronics control(CEC)I/F
• Advanced connectivity
– USB 2.0 full-speed device/host/OTG controller with on-chip PHY
– USB 2.0 high-speed/full-speed device/host/OTG controller with dedicated DMA,on-chip full-speed PHY and ULPI
– Dedicated USB power rail enabling on-chip PHYs operation throughout the entire MCU power supply range
• 8- to 14-bit parallel camera interface up to 54 Mbytes/s
• CRC calculation unit
• RTC: subsecond accuracy, hardware calendar
• 96-bit unique ID

STM32F446xC/E应用:

• Motor drive and application control
• Medical equipment
• Industrial applications: PLC, inverters, circuit breakers
• Printers, and scanners
• Alarm systems, video intercom, and HVAC
• Home audio appliances

图1.STM32F446xC/E框图

评估板STEVAL-BCNKT01V1

The STEVAL-BCNKT01V1 integrated development and prototyping platform for augmented acoustic and motion sensing for IoT applications builds on the listening and balancing capabilities of the human ear.

With the expanded capabilities of its starter kit, BlueCoin lets you explore advanced sensor fusion and signal processing functions for robotics and automation applications with a 4 digital MEMS microphone array, a high-performance 9-axis inertial and environmental sensor unit and time-of-flight ranging sensors.

A high-performance STM32F446 180 MHz MCU enables real-time implementation of the very advanced sensor fusion algorithms like adaptive beamforming and sound source localization, with ready-to-use, royalty-free building blocks.

The BlueCoin can connect via the on-board BLE link to any IoT and smart industry wireless sensor network.

The kit includes two expansion boards for the BlueCoin Core System:

the CoinStation for software and system architecture design support, featuring two ranging sensors with time-of-flight technology and a low-power stereo DAC

a compact Cradle host featuring an SD card interface for on-field testing and data acquisition campaign.

It contains FCC ID: S9NBCOIN01 and module IC 8976C-BCOIN01 certified with PMN: STEVAL-BCNKT01V1; HVIN: STEVAL-BCNCS01V1; HMN: STEVAL-BCNCR01V1; FVIN: bluenrg_7_2_c_Mode_2-32MHz-XO32K_4M.img.

图2.BlueCoin功能框图

图3.BlueCoin套件外形图

图4.STEVAL-BCNST01V1主板元件图

图5.STM32 Nucleo板,托架和托架扩展SWD连接器外形图

图6.STEVAL-BCNST01V1电路图(1)

图7.STEVAL-BCNST01V1电路图(2):连接器和电源

图8.STEVAL-BCNST01V1电路图(3):STM32F446MEY6

图9.STEVAL-BCNST01V1电路图(4):MEMS

图10.STEVAL-BCNST01V1电路图(5):BlueNRG-MS/Balf/Antenna

图11.STEVAL-BCNCR01V1电路
STEVAL-BCNST01V1材料清单:


STEVAL-BCNS01V1材料清单:




STEVAL-BCNCR01V1材料清单:


详情请见:
http://www.st.com/content/ccc/resource/technical/document/datasheet/65
/cb/75/50/53/d6/48/24/DM00141306.pdf/files/DM00141306.pdf/jcr:content/translations/en.DM00141306.pdf

http://www.st.com/content/ccc/resource/technical/document/user_manual
/group0/f9/8c/89/08/9e/b6/42/ac/DM00405843/files/DM00405843.pdf/jcr:content/translations/en.DM00405843.pdf

以及http://www.st.com/content/ccc/resource/technical/layouts_and_diagrams/schematic_pack/group0/58/3d/7a/5a/7f/47/4b/50/STEVAL-BCNKT01V1_schematics/files/steval-bcnkt01v1_schematic.pdf/jcr:content/translations/en.steval-bcnkt01v1_schematic.pdf
http://www.st.com/content/ccc/resource/technical/document/bill_of_materials/group0/3a/0b/ec/34/4e/62/4c/6c/STEVAL-BCNKT01V1_BOM/files/steval-bcnkt01v1_bom.pdf/jcr:content/translations/en.steval-bcnkt01v1_bom.pdf
en.DM00141306.pdf
en.DM00405843.pdf
en.steval-bcnkt01v1_bom.pdf
en.steval-bcnkt01v1_schematic.pdf

 
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