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基于ST公司的STM32F401高性能32位MCU开发方案

来源：中电网

2019-01-10

类别：工业控制

398

拍明

原标题：ST STM32F401高性能32位MCU开发方案

　　ST公司的STM32F401XB/STM32F401XC是基于ARM® Cortex® -M4 32位RISC核的高性别能MCU,工作频率高达84MHz,内核局有浮点单元(FPU),支持所有ARM单精度数据指令和数据类型,还能执行DSP指令和存储器保护单元(MPU)指令,多达256KB闪存和64KB SRAM,主要用在马达驱动和应用控制,医疗设备,工业应用如PLC,逆变器和电路中断器,打印机和扫描仪,告警系统,视频连接和HVAC,家庭音响设备和移动手机传感器集线器.本文介绍了STM32F401主要特性,框图,STM32 Nucleo-64开发板NUCLEO-F401RE主要特性,框图,电路图和材料清单,元器件布局图.

　　The STM32F401XB/STM32F401XC devices are based on the high-performanceARM® Cortex® -M4 32-bit RISC core operating at a frequency of up to 84 MHz. Its Cortex®-M4 core features a Floating point unit (FPU) single precision which supports all ARM singleprecisiondata-processing instructions and data types. It also implements a full set of DSPinstructions and a memory protection unit (MPU) which enhances application security.

　　The STM32F401xB/STM32F401xC incorporate high-speed embedded memories (up to 256 Kbytes of Flash memory, up to 64 Kbytes of 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 one 12-bit ADC, a low-power RTC, six general-purpose 16-bit timers including one PWM timer for motor control, two general-purpose 32-bit timers. They also feature standard and advanced communication interfaces.

　　• Up to three I2Cs

　　• Up to four SPIs

　　• Two full duplex I2Ss. To achieve audio class accuracy, the I2S peripherals can beclocked via a dedicated internal audio PLL or via an external clock to allowsynchronization.

　　• Three USARTs

　　• SDIO interface

　　• USB 2.0 OTG full speed interface

　　The STM32F401xB/STM32F401xC operate in the–40 to +105 ℃ temperature range from a1.7 (PDR OFF) to 3.6 V power supply. A comprehensive set of power-saving mode allowsthe design of low-power applications.

　　These features make the STM32F401xB/STM32F401xC microcontrollers suitable for a wide range of applications:

　　• 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

　　• Mobile phone sensor hub

　　STM32F401主要特性:

　　• Core:ARM® 32-bit Cortex®-M4 CPU with FPU,Adaptive real-time accelerator(ART Accelerator™)allowing 0-wait state executionfrom Flash memory,frequency up to 84 MHz,memory protection unit, 105 DMIPS/1.25 DMIPS/MHz (Dhrystone 2.1),and DSP instructions

　　• Memories

　　– Up to 256 Kbytes of Flash memory

　　– Up to 64 Kbytes of SRAM

　　• Clock, reset and supply management

　　– 1.7 V (PDR OFF) or 1.8 V (PDR ON) to3.6 V application supply and I/Os

　　– POR, PDR, PVD and BOR

　　– 4-to-26 MHz crystal oscillator

　　– Internal 16 MHz factory-trimmed RC

　　– 32 kHz oscillator for RTC with calibration

　　– Internal 32 kHz RC with calibration

　　• Power consumption

　　– Run: 128 μA/MHz (peripheral off)

　　– Stop (Flash in Stop mode, fast wakeuptime): 42 μAtyp @ 25 ℃;65 μA max @25 ℃

　　– Stop (Flash in Deep power down mode,slow wakeup time): down to 10 μAtyp@25 ℃; 28 μA max @25 ℃

　　– Standby: 2.4 μA @25 ℃ / 1.7 V withoutRTC; 12 μA @85 ℃ @1.7 V

　　– VBAT supply for RTC: 1 μA @25 ℃

　　• 1×12-bit, 2.4 MSPS A/D converter: up to 16channels

　　• General-purpose DMA: 16-stream DMAcontrollers with FIFOs and burst support

　　• Up to 11 timers: up to six 16-bit, two 32-bittimers up to 84 MHz, each with up to 4 IC/OC/PWM or pulse counter and quadrature(incremental) encoder input,two watchdog timers (independent and window) and aSysTick timer

　　• Debug mode

　　– Serial wire debug (SWD) & JTAGinterfaces

　　– Cortex-M4 Embedded Trace Macrocell™

　　• Up to 81 I/O ports with interrupt capability

　　– All IO ports 5 V tolerant

　　– Up to 78 fast I/Os up to 42 MHz

　　• Up to 11 communication interfaces

　　– Up to 3 × I2C interfaces (1Mbit/s,SMBus/PMBus)

　　– Up to 3 USARTs (2 x 10.5 Mbit/s, 1 x5.25 Mbit/s), ISO 7816 interface, LIN, IrDA,modem control)

　　– Up to 4 SPIs (up to 42 Mbits/s at fCPU= 84MHz), SPI2 and SPI3 with muxedfullduplex I2S to achieve audio class accuracyvia internal audio PLL or external clock

　　– SDIO interface

　　• Advanced connectivity

　　– USB 2.0 full-speed device/host/OTGcontroller with on-chip PHY

　　• CRC calculation unit

　　• 96-bit unique ID

　　• RTC: subsecond accuracy, hardware calendar

　　图1.STM32F401xB/STM32F401xC框图

　　STM32 Nucleo-64开发板NUCLEO-F401RE

　　STM32 Nucleo-64 development board with STM32F401RET6 MCU, supports Arduino and ST morpho connectivity. The STM32 Nucleo board is a low-cost and easy-to-use development platform used to quickly evaluate and start a development with an STM32 microcontroller in LQFP64 package.

　　The STM32 Nucleo-64 board (NUCLEO-F030R8,NUCLEO-F070RB,NUCLEO-F072RB,NUCLEO-F091RC,NUCLEO-F103RB,NUCLEO-F302R8,NUCLEO-F303RE,NUCLEO-F334R8,NUCLEO-F401RE,NUCLEO-F410RB,NUCLEO-F411RE,NUCLEO-F446RE,NUCLEO-L053R8,NUCLEO-L073RZ,NUCLEO-L152RE,NUCLEO-L476RG)provides an affordable and flexible way for users to try out new ideas and build prototypes with the STM32 microcontrollers in LQFP64 package, choosing from the various combinations of performance, power consumption and features. The Arduino™ connectivity support and ST Morpho headers make it easy to expand the functionality of the Nucleo open development platform with a wide choice of specialized shields. The STM32 Nucleo board does not require any separate probe as it integrates the ST-LINK/V2-1 debugger/programmer. The STM32 Nucleo board comes with the STM32 comprehensive software HAL library together with various packaged software examples, as well as direct access to mbed online resources at http://mbed.org/.