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MIcrochip公司的PIC32系列是高性能通用和USB的閃存微控制器,其中的32位RISCCPU采用5級流水線的MIPS M4K 32位內(nèi)核,CPU最大工作頻率80MHz,具有1.56 DMIPS/MHz (Dhrystone 2.1),而MCU工作電壓2.3V-3.6V,32KB-512KB閃存(另加12KB引導(dǎo)閃存)以及8K-32K SRAM存儲器.器件具有豐富外設(shè)和模擬特性,主要用在消費類電子,工業(yè),醫(yī)療電子和汽車電子.本文介紹了PIC32 MCU主要特性,方框圖,以及PIC32 MCU入門開發(fā)套件主要特性,方框圖,電路圖和材料廠清單. Microchip’s 32-bit portfolio with the MIPS® M4K® offers high performance microcontrollers, and all the tools needed to develop your embedded project. With free software, low cost development tools, and pin/peripheral compatibility from 16-bit product lines, PIC32 MCUs shorten time to market and allow your designs to grow. PIC32 gives your application the processing power, memory and peripherals your design needs! PIC32 MCU主要特性: High-Performance 32-bit RISC CPU: • MIPS32® M4K® 32-bit core with 5-stage pipeline • 80 MHz maximum frequency • 1.56 DMIPS/MHz (Dhrystone 2.1) performance at 0 wait state Flash access • Single-cycle multiply and high-performance divide unit • MIPS16e® mode for up to 40% smaller code size • Two sets of 32 core register files (32-bit) to reduce interrupt latency • Prefetch Cache module to speed execution from Flash Microcontroller Features: • Operating temperature range of -40ºC to +105ºC • Operating voltage range of 2.3V to 3.6V • 32K to 512K Flash memory (plus an additional 12 KB of boot Flash) • 8K to 32K SRAM memory • Pin-compatible with most PIC24/dsPIC® DSC devices • Multiple power management modes • Multiple interrupt vectors with individually programmable priority • Fail-Safe Clock Monitor Mode • Configurable Watchdog Timer with on-chip Low-Power RC Oscillator for reliable operation Peripheral Features: • Atomic SET, CLEAR and INVERT operation on select peripheral registers • Up to 4-channel hardware DMA with automatic data size detection • USB 2.0-compliant full-speed device and On-The-Go (OTG) controller • USB has a dedicated DMA channel • 3 MHz to 25 MHz crystal oscillator • Internal 8 MHz and 32 kHz oscillators • Separate PLLs for CPU and USB clocks • Two I2C™ modules • Two UART modules with: - RS-232, RS-485 and LIN support - IrDA® with on-chip hardware encoder and decoder • Up to two SPI modules • Parallel Master and Slave Port (PMP/PSP) with 8-bit and 16-bit data and up to 16 address lines • Hardware Real-Time Clock and Calendar (RTCC) • Five 16-bit Timers/Counters (two 16-bit pairs combine to create two 32-bit timers) • Five capture inputs • Five compare/PWM outputs • Five external interrupt pins • High-Speed I/O pins capable of toggling at up to 80 MHz • High-current sink/source (18 mA/18 mA) on all I/O pins • Configurable open-drain output on digital I/O pins Debug Features: • Two programming and debugging Interfaces: - 2-wire interface with unintrusive access and real-time data exchange with application - 4-wire MIPS® standard enhanced JTAG interface • Unintrusive hardware-based instruction trace • IEEE Standard 1149.2-compatible (JTAG) boundary scan Analog Features: • Up to 16-channel 10-bit Analog-to-Digital Converter: - 1000 ksps conversion rate - Conversion available during Sleep, Idle • Two Analog Comparators PIC32 MCU主要應(yīng)用: These new MCUs include a host of additional useful features that make them suitable for applications in the consumer, industrial, medical and automotive markets. 
圖1.PIC32 MCU方框圖 PIC32 MCU入門開發(fā)套件 PIC32 Starter Kit provides a low-cost, modular development system for Microchip’s line of 32-bit microcontrollers (MCUs). The starter kit comes preloaded with demonstration software for the user to explore the new features of the PIC32. It is also expandable through a modular expansion interface, which allows the user to extend its functionality. The starter kit also supplies on-board circuitry for full debug and programming capabilities. The PIC32 Starter Kit contains the following items: • PIC32 Starter Kit Board • USB Mini-B cable
圖2.PIC32 MCU入門開發(fā)套件外形圖 PIC32 MCU入門開發(fā)套件主要特性: The board includes these key features, as indicated in the diagram: 1. PIC32MX360F512L 32-bit microcontroller. 2. Green power indicator LED. 3. Regulated +3.3V power supply for powering the starter kit board via USB or expansion board. 4. On-board crystal for precision microcontroller clocking (8 MHz). 5. USB connectivity for on-board debugger communications. 6. PIC18LF4550 USB microcontroller for on-board debugging. 7. Orange Debug indicator LED. 8. Three push-button switches for user-defined inputs. 9. Three user-defined indicator LEDs. 10. Connector for connecting various expansion boards (on the underside of board).
圖3.PIC32 MCU入門開發(fā)板元件布局圖
圖4.PIC32 MCU入門開發(fā)板方框圖
圖5.PIC32 MCU入門開發(fā)板電路圖: PIC32MX CPU
圖6.PIC32 MCU入門開發(fā)板電路圖: PIC18LF4550調(diào)試CPU
圖7.PIC32 MCU入門開發(fā)板電路圖:應(yīng)用板連接器
圖8.PIC32 MCU入門開發(fā)板電路圖:開關(guān)和LED
圖9.PIC32 MCU入門開發(fā)板電路圖:電源 PIC32 MCU入門開發(fā)板材料清單:
詳情請見: 
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