原标题：TI MSP430F5529超低功耗MCU开发方案

　　TI公司的MSP430F5529, MSP430F5527, MSP430F5525和MSP430F5521是超低功耗微控制器(MCU),具有适合各种应用的外设组合,具有功能强大的16位RISC CPU,16位寄存器, 数控振荡器(DCO)使MCU从低功耗模式到工作模式只有3.5us,最佳用于以电池为能源的手持测量设备.本文介绍了MSP430F5529系列产品主要特性,功能框图, 评估模块MSP-EXP430F5529LP LaunchPad主要特性,框图,电路图,PCB设计文件和材料清单.

　　The Texas Instruments MSP430 family of ultralow-power microcontrollers consists of several devices featuring different sets of peripherals targeted for various applications. The architecture, combined with extensive low-power modes, is optimized to achieve extended battery life in portable measurement applications. The device features a powerful 16-bit RISC CPU, 16-bit registers, and constant generators that contribute to maximum code efficiency. The digitally controlled oscillator (DCO) allows wake-up from low-power modes to active mode in 3.5 µs (typical).

　　The MSP430F5529, MSP430F5527, MSP430F5525, and MSP430F5521 are microcontroller configurations with integrated USB and PHY supporting USB 2.0, four 16-bit timers, a high-performance 12-bit analog-to-digital converter (ADC), two universal serial communication interfaces (USCI), hardware multiplier, DMA, real-time clock module with alarm capabilities, and 63 I/O pins. The MSP430F5528, MSP430F5526, MSP430F5524, and MSP430F5522 include all of these peripherals but have 47 I/O pins.

　　The MSP430F5519, MSP430F5517, and MSP430F5515 are microcontroller configurations with integrated USB and PHY supporting USB 2.0, four 16-bit timers, two universal serial communication interfaces (USCI), hardware multiplier, DMA, real time clock module with alarm capabilities, and 63 I/O pins. The MSP430F5514 and MSP430FF5513 include all of these peripherals but have 47 I/O pins.

　　Typical applications include analog and digital sensor systems, data loggers, and others that require connectivity to various USB hosts.

　　MSP430F5529主要特性:

　　Low Supply-Voltage Range: 3.6 V Down to 1.8 V

　　Ultralow Power Consumption

　　Active Mode (AM):

　　All System Clocks Active

　　290 µA/MHz at 8 MHz, 3.0 V, Flash Program Execution (Typical)

　　150 µA/MHz at 8 MHz, 3.0 V, RAM Program Execution (Typical)

　　Standby Mode (LPM3):

　　Real-Time Clock With Crystal, Watchdog, and Supply Supervisor Operational, Full RAM Retention, Fast Wake-Up:

　　1.9 µA at 2.2 V, 2.1 µA at 3.0 V (Typical)

　　Low-Power Oscillator (VLO), General-Purpose Counter, Watchdog, and Supply Supervisor Operational, Full RAM Retention, Fast Wake-Up:

　　1.4 µA at 3.0 V (Typical)

　　Off Mode (LPM4):

　　Full RAM Retention, Supply Supervisor Operational, Fast Wake-Up:

　　1.1 µA at 3.0 V (Typical)

　　Shutdown Mode (LPM4.5):

　　0.18 µA at 3.0 V (Typical)

　　Wake-Up From Standby Mode in 3.5 µs (Typical)

　　16-Bit RISC Architecture, Extended Memory, up to 25-MHz System Clock

　　Flexible Power Management System

　　Fully Integrated LDO With Programmable Regulated Core Supply Voltage

　　Supply Voltage Supervision, Monitoring, and Brownout

　　Unified Clock System

　　FLL Control Loop for Frequency Stabilization

　　Low-Power Low-Frequency Internal Clock Source (VLO)

　　Low-Frequency Trimmed Internal Reference Source (REFO)

　　32-kHz Watch Crystals (XT1)

　　High-Frequency Crystals up to 32 MHz (XT2)

　　16-Bit Timer TA0, Timer_A With Five Capture/Compare Registers

　　16-Bit Timer TA1, Timer_A With Three Capture/Compare Registers

　　16-Bit Timer TA2, Timer_A With Three Capture/Compare Registers

　　16-Bit Timer TB0, Timer_B With Seven Capture/Compare Shadow Registers

　　Two Universal Serial Communication Interfaces

　　USCI_A0 and USCI_A1 Each Support: Enhanced UART Supports Auto-Baudrate Detection, IrDA Encoder and Decoder, Synchronous SPI

　　USCI_B0 and USCI_B1 Each Support: I2CTM, Synchronous SPI

　　Full-Speed Universal Serial Bus (USB)

　　Integrated USB-PHY

　　Integrated 3.3-V and 1.8-V USB Power System

　　Integrated USB-PLL

　　Eight Input, Eight Output Endpoints

　　12-Bit Analog-to-Digital (A/D) Converter (MSP430F552x Only) With Internal Reference, Sample-and-Hold, and Autoscan Feature

　　Comparator

　　Hardware Multiplier Supporting 32-Bit Operations

　　Serial Onboard Programming, No External Programming Voltage Needed

　　Three Channel Internal DMA

Basic Timer With Real-Time Clock Feature

　　图1. MSP430F5529IPN, MSP430F5527IPN, MSP430F5525IPN,MSP430F5521IPN功能框图

　　评估模块MSP-EXP430F5529LP LaunchPad

　　The MSP430 LaunchPad now has USB! The MSP-EXP430F5529LP LaunchPad (or the “F5529 LaunchPad”) is an inexpensive, simple evaluation module for the MSP430F5529 USB microcontroller. It’s an easy way to start developing on the MSP430, with an on-board emulation for programming and debugging, as well as buttons and LEDs for simple user interface.

　　Rapid prototyping is a snap, thanks to 40-pin BoosterPack expansion headers, as well as a wide range of available BoosterPack plug-in modules. You can quickly add features like wireless, displays, sensors, and much more. You can either design your own BoosterPack, or choose among many already available from TI and elsewhere. The 40-pin interface is compatible with any 20-pin BoosterPack that is compliant with the standard.

　　The MSP-EXP430F5529LP LaunchPad includes the MSP430F5529 16-bit MCU with 128KB Flash, 8KB RAM, up to 25MHz CPU speed, integrated USB 2.0 PHY, 12-bit analog-to-digital converter (ADC), timers, serial communication (UART, I2C, SPI) and more! Free and Open Source USB API stacks and the MSP430 USB Descriptor Tool, available through the MSP430 USB Developers Package allowing for quick configuration of USB applications.Free software development tools are also available, such as TI’s Eclipse-based Code Composer Studio and IAR Embedded Workbench.

　　More information about the LaunchPad , the supported BoosterPacks and available resources can be found at TI’s LaunchPad portal and the MSP430 LaunchPad wiki for design resources and example projects.

　　评估模块MSP-EXP430F5529LP LaunchPad主要特性:

　　USB 2.0-enabled MSP430F5529 16-bit MCU

　　Up to 25 MHz

　　128KB Flash and 8KB RAM

　　12 Bit SAR ADC

　　Various USB device class examples and libraries available (CDC, HID, MSC)

　　eZ-FET lite: Open source onboard debugger with application UART

　　One USB connection for emulator and target via the use of an onboard USB hub

　　USB as power source: 5V and 3.3V through a high efficiency DC/DC converter

　　40 pin LaunchPad standard leveraging the BoosterPack ecosystem

　　评估模块MSP-EXP430F5529LP LaunchPad包括:

　　MSP-EXP430F5529LP LaunchPad

　　Micro USB cable

　　Quick Start Guide

　　图2. 评估模块MSP-EXP430F5529LP LaunchPad外形图

　　图3. 评估模块MSP-EXP430F5529LP LaunchPad框图