ST STM32F37x 32位Cortex－M4F MCU开发方案 开发

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关键词： ST , STM32F37x , 32位Cortex－M4F , MCU

ST公司的STM32F37x系列产品是高性能ARM Cortex-M4F 32位RISC MCU,工作频率高达72MHz,嵌入浮点单元(FPU),存储器保护单元(MPU)和嵌入式跟踪宏单元(ETM),嵌入式闪存高达256KB,SRAM高达32KB,工作电压2.0 到3.6 V,主要用在移动游戏,增强现实感,光学图像稳定性,手持导航,机器人和工业自动化系统.本文介绍了STM32F37x系列主要特性,框图,STM32F3DISCOVERY开发板主要特性,硬件框图,电路图和开发板布局图. The STM32F37x family is based on the high-performance ARM® Cortex™-M4F 32-bit RISC core operating at a frequency of up to 72 MHz, and embedding a floating point unit(FPU), a memory protection unit (MPU) and an embedded trace macrocell (ETM). The family incorporates high-speed embedded memories (up to 256 Kbyte of Flash memory, up to 32 Kbytes of SRAM), and an extensive range of enhanced I/Os and peripherals connected to two APB buses. The STM32F37x devices offer one fast 12-bit ADC (1 Msps), up to three 16-bit Sigma delta ADCs, up to two Comparators, up to two DACs (DAC1 with 2 channels and DAC2 with 1 channel), a low-power RTC, 9 general-purpose 16-bit timers, two general-purpose 32-bit timers, three basic timers. They also feature standard and advanced communication interfaces: up to two I2Cs, three SPIs, all with muxed I2Ss, three USARTs, CAN and USB. The STM32F37x family operates in the -40 to +85 °C and -40 to +105 °C temperature ranges from a 2.0 to 3.6 V power supply. A comprehensive set of power-saving mode allows the design of low-power applications. The STM32F37x family offers devices in five packages ranging from 48 pins to 100 pins. The set of included peripherals changes with the device chosen. STM32F37x系列主要特性: ■ Core: ARM 32-bit Cortex.-M4F CPU (72 MHz max), single-cycle multiplication and HW division, DSPinstruction with FPU (floatingpoint unit) and MPU (memory protection unit) ■ Memories – 64 to 256 Kbytes of Flash memory – 32 Kbytes of SRAM with HW parity check ■ CRC calculation unit ■ Reset and power management – Voltage range: 2.0 to 3.6 V – Power-on/Power down reset (POR/PDR) – Programmable voltage detector (PVD) – Low power modes: Sleep, Stop, Standby – VBAT supply for RTC and backup registers ■ Clock management – 4 to 32 MHz crystal oscillator – 32 kHz oscillator for RTC with calibration – Internal 8 MHz RC with x16 PLL option – Internal 40 kHz oscillator ■ Up to 84 fast I/Os – All mappable on external interrupt vectors – Up to 45 I/Os with 5 V tolerant capability ■ 12-channel DMA controller ■ One 12-bit, 1.0 μs ADC (up to 16 channels) – Conversion range: 0 to 3.6 V – Separate analog supply from 2.4 up to 3.6 ■ Up to three 16-bit Sigma Delta ADC – Separate analog supply from 2.2 to 3.6 V, up to 21 single/ 11 diff channels ■ Up to three 12-bit DAC channels ■ Two fast rail-to-rail analog comparators with programmable input and output ■ Up to 24 capacitive sensing channels supporting touchkey, linear and rotary Touchsensors ■ 17 timers – Two 32-bit timer and three 16-bit timers with up to 4 IC/OC/PWM or pulse counter – Two 16-bit timers with up to 2 IC/OC/PWM or pulse counter – Four 16-bit timers with up to 1 IC/OC/PWM or pulse counter – Independent and system watchdog timers – SysTick timer: 24-bit downcounter – Three 16-bit basic timers to drive the DAC ■ Calendar RTC with Alarm and periodic wakeup from Stop/Standby ■ Communication interfaces – CAN interface (2.0B Active) – Two I2C interfaces; one supporting Fast Mode Plus (1 Mbit/s) with 20 mA current sink, SMBus/PMBus, wakeup from STOP – Three USARTs supporting master synchronous SPI and modem control; with ISO7816 interface, LIN, IrDA capability, auto baud rate detection, wakeup feature – Three SPIs (18 Mbit/s) with 4 to 16 programmable bit frame, muxed I2S – HDMI-CEC bus interface – USB 2.0 full speed interface ■ Serial wire devices, JTAG, Cortex-M4F ETM ■ 96-bit unique ID 图1.STM32F37x系列框图 STM32F3DISCOVERY开发板 The STM32F3DISCOVERY is a low-cost and easy-to-use development kit to quickly evaluate and start development with an STM32 F3 series microcontroller. The STM32F3DISCOVERY is designed to help you explore the features of the STM32 F3 32-bit ARM® Cortex™-M4 mixed-signal MCU, and develop your applications. It is based on an STM32F303VCT6 and includes an ST-LINK/V2 embedded debug tool interface,Gyroscope ST MEMS, E-compass with accelerometer ST MEMS, LEDs, pushbuttons and a USB mini-B connector. 图2.STM32F3DISCOVERY开发板外形图 STM32F3DISCOVERY开发板主要特性: ● STM32F303VCT6 microcontroller featuring 256 KB of Flash memory, 48 KB of RAM in an LQFP100 package. ● On-board ST-LINK/V2 with selection mode switch to use the kit as a standalone ST-LINK/V2 (with SWD connector for programming and debugging). ● Board power supply: through the USB bus or from an external 3 V or 5 V supply voltage. ● External application power supply: 3 V and 5 V. ● L3GD20, ST MEMS motion sensor, 3-axis digital output gyroscope. ● LSM303DLHC, ST MEMS system-in-package featuring a 3D digital linear acceleration sensor and a 3D digital magnetic sensor. ● Ten LEDs: – LD1 (red) for 3.3 V power-on. – LD2 (red/green) for USB communication. – Eight user LEDs, LD3/10 (red), LD4/9 (blue), LD5/8 (orange) and LD6/7 (green). ● Two pushbuttons (user and reset). ● USB USER with Mini-B connector. ● Extension header for LQFP100 I/Os for quick connection to prototyping board and easy Probing. 图3.STM32F3DISCOVERY开发板硬件框图 图4.STM32F3DISCOVERY开发板电路图(1) 图5.STM32F3DISCOVERY开发板电路图(2) 图6.STM32F3DISCOVERY开发板电路图(3) 图7.STM32F3DISCOVERY开发板电路图(4) 图8.STM32F3DISCOVERY开发板布局图(顶层) 图9.STM32F3DISCOVERY开发板布局图(底层) 详情请见: DM00046749[1].pdf (1.89 MB, 下载次数: 1) 和 DM00063382[1].pdf (1.36 MB, 下载次数: 1)