ST STM32F446物联网(IoT)应用方案

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. T...