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STM32F437xx和STM32F439xx系列MCU開發(fā)方案

文章來源：更新時間：2015/1/10 9:53:00

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ST公司的STM32F437xx和STM32F439xx系列是基于高性能ARM® Cortex®-M4 32位RISC內(nèi)核的MCU,集成了FPU,自適應實時(ART)加速度器,工作頻率高達180MHz, MPU, 225 DMIPS/1.25 DMIPS/MHz (Dhrystone 2.1)以及DSP指令,高達2MB閃存,256+4KB SRAM和32位數(shù)據(jù)總線,工作電壓1.7-3.6 V,工作溫度–40到+105 ℃.主要用在馬達驅(qū)動和工業(yè)控制,醫(yī)療設備,PLC,逆變器,電路斷路器,打印機和掃描儀,告警系統(tǒng),視頻連接,HVAC和家庭音響設備.本文介紹了STM32F437xx和STM32F439xx系列主要特性,框圖,以及評估板STM32439I-EVAL主要特性,框圖,電路圖,材料清單和PCB元件布局圖.
The STM32F437xx and STM32F439xx 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® singleprecision 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 STM32F437xx and STM32F439xx devices incorporate high-speed embedded memories (Flash memory up to 2 Mbyte, up to 256 kbytes 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. a true random number generator (RNG), and a cryptographic acceleration cell. They also feature standard and advanced communication interfaces.
Up to three I2Cs
Six SPIs, two I2Ss full duplex. 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 four UARTs
An USB OTG full-speed and a USB OTG high-speed with full-speed capability (with the ULPI),
Two CANs
One SAI serial audio interface
An SDIO/MMC interface
Ethernet and camera interface
LCD-TFT display controller
Chrom-ART Accelerator™.
Advanced peripherals include an SDIO, a flexible memory control (FMC) interface, acamera interface for CMOS sensors and a cryptographic acceleration cell.
The STM32F437xx and STM32F439xx devices operates in the–40 to +105 ℃ temperature range from a 1.7 to 3.6 V power supply.
The STM32F437xx and STM32F439xx devices offer devices in 8 packages ranging from　100 pins to 216 pins. The set of included peripherals changes with the device chosen.
STM32F437xx和STM32F439xx系列主要特性:
Core: ARM® 32-bit Cortex®-M4 CPU with FPU, Adaptive real-time accelerator (ART Accelerator™) allowing 0-wait state execution from Flash memory, frequency up to 180 MHz, MPU, 225 DMIPS/1.25 DMIPS/MHz (Dhrystone 2.1), and DSP instructions
Memories
– Up to 2 MB of Flash memory organized into two banks allowing read-while-write
– Up to 256+4 KB of SRAM including 64-KB of CCM (core coupled memory) data RAM
– Flexible external memory controller with up to 32-bit data bus:
SRAM,PSRAM,SDRAM/LPSDR SDRAM , Compact Flash/NOR/NAND memories
LCD parallel interface, 8080/6800 modes
LCD-TFT controller up to XGA resolution with dedicated Chrom-ART Accelerator™ for enhanced graphic content creation (DMA2D)
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: 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 and quadrature (incremental) encoder input
Debug mode
– SWD & JTAG interfaces
– Cortex-M4 Trace Macrocell™
Up to 168 I/O ports with interrupt capability
– Up to 164 fast I/Os up to 90 MHz
– Up to 166 5 V-tolerant I/Os
Up to 21 communication interfaces
– Up to 3 × I2C interfaces (SMBus/PMBus)
– Up to 4 USARTs/4 UARTs (11.25 Mbit/s, ISO7816 interface, LIN, IrDA, modem control)
– Up to 6 SPIs (45 Mbits/s), 2 with muxed full-duplex I2S for audio class accuracy via internal audio PLL or external clock
– 1 x SAI (serial audio interface)
– 2 × CAN (2.0B Active) and SDIO interface
 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
– 10/100 Ethernet MAC with dedicated DMA: supports IEEE 1588v2 hardware, MII/RMII
8- to 14-bit parallel camera interface up to 54 Mbytes/s
Cryptographic acceleration: hardware acceleration for AES 128, 192, 256, Triple DES, HASH (MD5, SHA-1, SHA-2), and HMAC
True random number generator
CRC calculation unit
RTC: subsecond accuracy, hardware calendar
96-bit unique ID
STM32F437xx和STM32F439xx系列主要應用:
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

圖1. STM32F437xx和STM32F439xx系列框圖

評估板STM32439I-EVAL
The STM32439I-EVAL evaluation board is a complete demonstration and development platform for the STMicroelectronics ARM^®Cortex™-M4 core-based STM32F439 line microcontrollers.
The integrated ST-LINK/V2 provides an embedded in-circuit debugger and programmer for the STM32 MCU. Extension headers make it possible to easily connect a daughterboard for your specific application.
The STM32439I-EVAL evaluation board includes everything required for beginners and experienced users to develop applications quickly.

圖2. 評估板STM32439I-EVAL外形圖

評估板STM32439I-EVAL主要特性:
STM32F439NIH6 microcontroller
Six 5 V power supply options:
– Power jack
– ST-LINK/V2 USB connector
– User USB HS connector
– User USB FS1 connector
– User USB FS2 connector
– Daughterboard
SAI Audio DAC, stereo audio jack which supports headset with microphone
Stereo digital microphone, audio terminal connector used to connect external speakers
2 GByte (or more) SDIO interface MicroSD Card
RF EEPROM on I2C compatible serial interface
RS-232 communication
IrDA transceiver
JTAG/SWD and ETM trace debug support, ST-LINK/V2 embedded
IEEE-802.3-2002 compliant Ethernet connector
Camera module
8 M x 32-bit SDRAM, 1 M x 16-bit SRAM & 8 M x 16-bit NOR Flash
5.7 inch 640 x 480 pixel TFT color LCD with capacitive touch panel
Joystick with 4-direction control and selector
Reset, WakeUp, Tamper or key button
4 user color LEDs
Extension connectors & memory connectors for daughterboard or wrapping board
USB OTG HS and FS with Micro-AB connectors
RTC with backup battery
CAN2.0A/B compliant connection
Potentiometer
Motor control connector