MSP-EXP430G2 LacunchPad口袋实验平台用户手册

MSP430-GBD development boardUsers ManualAll boards produced by Olimex are ROHS compliantRev.A, November 2009Copyright(c) 2009, OLIMEX Ltd, All rights reservedINTRODUCTIONMSP430-GBD development board is example how digital signal processing may bedone with low cost and low power MSP430 microcontrooler, the design is based onTI Application notes: SLAA351 Simple Glasbreak detector and SLAA389 RobustGlasbreak detectorApplication software make it like simple glass break detector. There is led andbuzzer indication when glass break is detected. The board can be used as sensorevaluation, introduction to digital filtering basis. The sources are available and canbemodified by the user for their own further development.BOARD FEATURES-CPU: MSP430F2274 mixed signal microcontroller-JTAG connector-UEXT connector-Microphone-Buzzer- 3 V lithium battery connector-Status LED-PCB: FR-4, 1.5 mm (0,062"), solder mask, silkscreen component print-Dimensions: 41.9x40.6 mm ( 1.650x 1.599")ELECTROSTATIC WARNINGThe MSP430-GBD board is shipped in protective anti-static packaging. The boardmust not be subject to high electrostatic potentials. General practice for workingwith static sensitive devices should be applied when working with this board. BOARD USE REQUIREMENTSCables: The cable you will need depends on the programmer/debugger you use. Ifyou use MSP430-JTAG, you will need LPT cable, if you use MSP430-JTAG-TINY orMSP-JTAG-ISO, you will need 1.8m A-B USB cable, if you use MSP430-JTAG-RF,you can connect it to the USB port of your computer, or via USB cable type A –female.Note: If you use MSP430-JTAG-RF – be sure that your battery gives power supply 3V,because if it is lower – MSP430-JTAG-RF may not work.Hardware:Programmer/Debugger–one of our Programmers–MSP430-JTAG,MSP430-JTAG-TINY, MSP430-JTAG-ISO, or MSP430-JTAG-RF.Software: MSP430 KickStart software.PROCESSOR FEATURESMSP430-GBD board use ultralow-power mixed signal microcontroller with twobuilt-in 16-bit timers, a universal serial communication interface, 10-bit A/Dconverter with integrated reference and data transfer controller (DTC), two general-purpose operational amplifiers, 32 GPIO with these features:–32KB + 256B Flash Memory–1KB RAM–Low Supply Voltage Range: 1.8 V to 3.6 V–Ultralow Power Consumption–Active Mode: 270 µA at 1 MHz, 2.2 V–Standby Mode: 0.7 µA–Off Mode (RAM Retention): 0.1 µA–Ultrafast Wake-Up From Standby Mode in Less Than 1 µs–16-Bit RISC Architecture, 62.5-ns Instruction Cycle Time–Basic Clock Module Configurations:–Internal Frequencies up to 16 MHz With Four Calibrated Frequencies to±1%–Internal Very-Low-Power Low-Frequency Oscillator–32-kHz Crystal–High-Frequency Crystal 16 MHz–Resonator–External Digital Clock Source–External Resistor–16-Bit Timer_A With Three Capture/Compare Registers–16-Bit Timer_B With Three Capture/Compare Registers–Universal Serial Communication Interface–Enhanced UART Supporting Auto-Baudrate Detection (LIN)–IrDA Encoder and Decoder–Synchronous SPI–I2C TM–10-Bit 200-ksps Analog-to-Digital (A/D) Converter With Internal Reference,Sample-and-Hold, Autoscan, and Data Transfer Controller–Two Configurable Operational Amplifiers–Brownout Detector–Serial Onboard Programming, No External Programming Voltage Needed Programmable Code Protection by Security Fuse–Bootstrap Loader–On Chip Emulation ModuleBLOCK DIAGRAM MEMORY ORGANIZATIONSCHEMATICVBOARD LAYOUTPOWER SUPPLY CIRCUITMSP430-GBD can take power from two sources:–Battery, when jumper BAT/JTAG is in position BAT.–JTAG, when jumper BAT/JTAG is in position JTAG.RESET CIRCUITMSP430-GBD reset circuit includes JTAG connector pin 11, EXT pin 3,MSP430F2274 pin 7 (#RST/NMI/SBWTDIO).CLOCK CIRCUITThere is XTAL option for the customer. You can connect quartz crystal toMSP430F2274 pin 5 (XOUT/P2.7) and pin 6 (XIN/P2.6).JUMPER DESCRIPTIONSDA/P1.2Give user choice to select UEXT SDA connection between P1.2 or MOSI/SDA.Default state is P1.2.SCL/P1.1Give user choice to select UEXT SCL connection between P1.1 or MISO/SCL.Default state is P1.1.BAT/JTAGGive user opportunity to select between battery power supply or JTAG power supply.Default state is JTAG.E_MICGive user opportunity to connect external microphone instead on-board microphone.Default state is not connected.INPUT/OUTPUTStatus LED (red) with name LED - light indication for recognizing glass breakage,connected to MSP430F2274 pin 31 (P1.0).BUZZER – audio indication for glass breakage, connected to MSP430F2274 pin 28(P3.7)MIC - on-board microphone – sensor for recognizing glass breakage, connected toMSP430F2274 pin 17 (P4.0) - VCC_MIC, through R7(4.7k) and pin 10 (DA0I1),through C(1uF).CONNECTOR DESCRIPTIONSJTAGPin #Signal Name Pin #Signal Name1TDO2VCC_JTAG3TDI4VCC5TMS6NC7TCK8TEST/SWBTCK9GND10NC11#RST/SWBTDIO12NC13NC14NCEXTPin #Signal Name Pin #Signal Name1VCC2GND3#RST/SWBTDIO4P2.55P1.36P4.77P4.58P4.39P4.210P4.111P3.612P2.313VCC14GNDUEXTMECHANICAL DIMENSIONSAll measures are in inches.AVAILABLE DEMO SOFTWARE–MSP430-GBD_Blinking_Led–MSP430-GBD_Buzzer_Beep–MSP430-GBD_Glass_BreakORDER CODEMSP430-GBD – assembled and testedHow to order?You can order to us directly or by any of our distributors.Check our web /dev for more info.Revision history:REV.A- create November 2009Disclaimer:© 2009 Olimex Ltd. All rights reserved. Olimex®, logo and combinations thereof, are registered trademarks of Olimex Ltd. Other terms and product names may be trademarks of others.The information in this document is provided in connection with Olimex products. No license, express or implied or otherwise, to any intellectual property right is granted by this document or in connection with the sale of Olimex products.Neither the whole nor any part of the information contained in or the product described in this document may be adapted or reproduced in any material from except with the prior written permission of the copyright holder. The product described in this document is subject to continuous development and improvements. All particulars of the product and its use contained in this document are given by OLIMEX in good faith. However all warranties implied or expressed including but not limited to implied warranties of merchantability or fitness for purpose are excluded.This document is intended only to assist the reader in the use of the product. OLIMEX Ltd. shall not be liable for any loss or damage arising from the use of any information in this document or any error or omission in such information or any incorrect use of the product.。

SMBus Library for MSP430G2xx3Devices User’s GuideDOCNUM-1.10.00.00Copyright©2015T exas Instruments Incorporated.1 CopyrightCopyright©2015Texas Instruments Incorporated.All rights reserved.MSP430and MSP430Ware are trademarks of Texas Instruments Instruments. ARM and Thumb are registered trademarks and Cortex is a trademark of ARM Limited.Other names and brands may be claimed as the property ofbe aware that an important notice concerning availability,standard warranty,and use in critical applications of Texas Instruments semi-conductor products and disclaimers thereto appears at the end of this document.Texas Instruments13532N.Central Expressway MS3810Dallas,TX75243/Revision InformationThis is version1.10.00.00of this document,last updated on Fri Feb13201511:59:44.Table of Contents2Table of ContentsCopyright (1)Revision Information (1)1Introduction (3)1.1Introduction (3)1.2SMBus (3)1.3The MSP430™SMBus Library Package (4)2Introduction to the MSP430™SMBus API (5)2.1Overview (5)2.2Supported Device Families (5)2.3Supported Development Environments (5)2.4Stack Organization (5)2.5Usage of MCU Peripheral Resources (6)2.6Release Notes and Migration from Previous Versions (6)3SMBus API Usage (7)3.1Introduction (7)3.2Usage (7)3.3Examples (8)IMPORTANT NOTICE (9)1Introduction1.1IntroductionThs SMBus(Sytem Management Bus)API(application programming interface)stack forMSP430™microcontrollers is a turnkey API.It includes support for applications where theMSP430™microcontroller is acting as the master or a slave.The API is designed to minimize the SMBus knowledge required to write an application:All SMBus protocol is handled automatically by the APIThe data interface presented to the application is simple to use,abstracting the applicationfrom SMBus protocolThe user should not need to modify the API source.However,for experienced developers,thesource is open and available for editing.Accessing the API’s source can also be useful for systemdebug.Application examples are included in the MSP430™SMBus Library Package.1.2SMBusThe System Management Bus(SMBus)is a lightweight two-wire interface based on the principlesof I2C,commonly used as a control bus and for power management tasks in computing,mobilecomputing and battery operated applications.A device performing data transfers on the bus canbe considered a master,which is the device which initiates a transaction and drives the clock,or aslave,which is the target of a SMBus transaction driven by the master.Both the master and theslave can act as transmitters or as receivers.SMBus2.0shares a lot of similarities with I2C,but some of the most relevant differences include:Time-out detection when a device stretches the clock for too longPacket Error Checking(PEC)can be optionally appended at the end of each transaction,allowing the bus to automatically validate packetsI2C only defines a PHY and Data-Link layers,but SMBus defines a network layer withdifferent SMBus protocols which can be used to exchange data between devicesOptional use of additional lines such as SMBAlert#and SMBSUS#.For more information about SMBus,please refer to the SMBus2.0specification:/specs/.For more information about I2C,please refer to/documents/user manual/UM10204.pdf1.2.1Supported FeaturesThe following table details the SMBus features supported in the MSP430™SMBus library.SMBus Feature MSP430FR5xx6xx MSP430G2xx3Applicable SMBus2.0 Master Slave Master Slave specification sectionClock Timeout detection1Y es Y es Y es1Y es1 3.1.1.2Manual NACK on invalid address/data N/A Y es2N/A No 4.2Arbitration Y es N/A Y es N/A 4.3.2Clock stretching Y es Y es Y es Y es 4.3.3Multiple Slave address N/A No N/A No 5.2General Call address N/A No N/A No 5.2PEC Y es Y es Y es Y es 5.4Quick Command Partial3Partial3Parial3Partial3 5.5.1Send Byte Y es Y es Y es Y es 5.5.2Receive Byte Y es Y es Y es Y es 5.5.3Write Byte/Word Y es Y es Y es Y es 5.5.4Read Byte/Word Y es Y es Y es Y es 5.5.5Process Call Y es Y es Y es Y es 5.5.6Block Write/Read Y es Y es Y es Y es 5.5.7Block write-block read process call Y es Y es Y es Y es 5.5.8Host notify protocol No No No No 5.5.9ARP No No No No 5.6SMBAlert#No No No No Appendix ASMBSUS#No No No No Appendix ANotes:1.MSP430G2xx3USCI doesn’t have integrated timeout detection and requires a timer2.MSP430FR5x/6xx can optionally-use DMA to stretch SCL while deciding to ACK/NACK thecurrent byte3.Only QuickCommand Write is supported,not QuickCommand Read1.3The MSP430™SMBus Library PackageThis User’s Guide documents the SMBus API and examples.The contents of the package isdescribed below:smbuslib:T op level directory.Contains release notes and the manifestfile related to licensing.•docs:Contains the API and User’s Guides for the supported MSP430™devices•driverlib:Contains the standard MSP430™driverlib which is used in the libraryimplementation for device families that support driverlib(for example,MSP430FR5xx6xx)•examples:Contains the example projects for each of the supported MSP430™devices•src:Contains the source code for the SMBus Library stack2Introduction to the MSP430™SMBus API 2.1OverviewThe MSP430™SMBus API stack allows easy creation of MSP430™applications thatcommunicate with other system components over a SMBus interface.This API supports using the MSP430™microcontroller as the SMBus master or as a SMBusslave.2.2Supported Device FamiliesThe SMBus API stack is supported on the following MSP430™device families:MSP430FR5xx6xxMSP430G2xx32.3Supported Development EnvironmentsThe SMBus API stack and examples build and run on both the IAR and CCS environments forMSP430™microcontrollers.See the Release Notes HTMLfile in the SMBus Library Package forspecific IAR/CCS version information.IAR and CCS are both available in free,code-size-limited versions(8K and16K,respectively,ofobject code).Applications thatfit under8K of memory can be run on both free versions.Applications that are greater than8K cannot be built using the free IAR Kickstart tool.Instead,thefree version of CCS can be used;or a licensed version of either environment.See the Release Notes within the SMBus Library Package zipfile for additional informationspecific to a given release.2.4Stack OrganizationThe software stack is organized into three layers:The public API layer defines the API’s that should be called by application programs.Thesefunctions are defined in smbus.h.The network layer manages the SMBus protocol state machine and interfaces with thephysical layer.These functions are defined in smbus nwk.h and should not be called directlyfrom application programs.The physical layer contain all the device specific code to interact with the MSP430™microcontroller.These functions are defined in smbus phy.h and should not be called directlyfrom application programs.2.5Usage of MCU Peripheral ResourcesWithin the SMBus API,the resources shown below are considered owned by the API.If theapplication accesses them,it should be aware of how the API uses them.2.6Release Notes and Migration from Previous VersionsA Release Notes HTMLfile accompanies each release of the SMBus Library Package.Referencethisfile for any information specific to this release,including:All changes from the previous versionsInstructions for migration from previous versionsUpdated IDE configuration informationKnown issues3SMBus API Usage3.1IntroductionThis chapter contains the detailed documentation for the application API functions anddescriptions on using the API to create a SMBus master or slave application.3.2UsageThis section illustrates the basic application template for master and slave applications.See theexamples for complete applications,and the HTML API documentation for details on theindividual APIs.3.2.1Master Usage Outline//Declare master SMBus structureSMBus SMB;//Initialize GPIOs and clocks...//Initialize GPIO I2C pins...//Initialize SMBus Master always at100kbps per SMBus specSMBus masterInit(&SMB,NULL,(MCLK MHZ*1000000));//Initialize I2C and enable SMBus InterruptsSMBus masterEnableInt(&SMB);//Send SMBus Sendbyte command(0x33)uint8t ret=SMBus masterSendByte(&SMB,//SMB struct0x40,//Slave Addr0x33);//SMB Command...3.2.2Slave Usage Outlinemain(){//Declare slave SMBus structureSMBus SMB;//SMBus receive and transmit buffersuint8t au8RxBuff[SMB MAX PACKET SIZE];uint8t au8TxBuff[SMB MAX PACKET SIZE];//Initialize GPIOs and clocks...//Initialize GPIO I2C pins...//Initialize SMBus SlaveSMBus slaveInit(&SMB,NULL);//Set the slave’s addressSMBus slaveSetAddress(&SMB,0x40);//Set the RX and TX buffers for SMBusSMBus slaveSetRxBuffer(&SMB,au8RxBuff,sizeof(au8RxBuff));SMBus slaveSetTxBuffer(&SMB,au8TxBuff,sizeof(au8TxBuff));//Initialize I2C and enable SMBus InterruptsSMBus slaveEnableInt(&SMB);...while(1){disable interrupt();{BIS SR(LPM3bits+GIE);//Go to sleep}enable interrupt();}//While(1)}#pragma vector=USCIAB0TX VECTOR,USCIAB0RX VECTORinterrupt void USCI ISR(void){//Check the state of SMBusswitch(SMBus slaveProcessInt(&SMB)){case SMBus State Slave QCMD://If a Quick command was detected,execute function(if any)break;case SMBus State Slave CmdComplete://Get command using SMBus slaveGetCommand(&SMB)and process command//if command is not valid/supported//SMBus slaveReportError(&SMB,SMBUS ErrorCode Cmd);LPM3EXIT;//Exit to main loop if requiredbreak;default:break;}//Clear flags to be ready for next packetSMBus processDone(&SMB);}#pragma vector=TIMER1A0VECTORinterrupt void TIMER1A0ISR(void){//Call the SMBUS function to handle a timeout error and restart the SMBUSSMBus slaveProcessTimeoutInt(&SMB);}3.3ExamplesSeveral examples are provided with the release package that illustrate using the library toimplement both SMBus master and slave application.For each example,matching master and slave implementations are provided.ReadByte Echo-sends and echoes back a ReadByte commandWriteWord Dimmer-sends and echoes back a WriteWord commandAllProtocols-sequences through all the SMBus protocolsExamples are configured for the MSP-EXP430G2and MSP-EXP430FR5969launch pad boardsand CCS and IAR projects are provided.9 IMPORTANT NOTICET exas Instruments Incorporated and its subsidiaries(TI)reserve the right to make corrections,modifications,enhancements,improvements, and other changes to its products and services at any time and to discontinue any product or service without notice.Customers should obtain the latest relevant information before placing orders and should verify that such information is current and complete.All products are sold subject to TI’s terms and conditions of sale supplied at the time of order acknowledgment.TI warrants performance of its hardware products to the specifications applicable at the time of sale in accordance with TI’s standard warranty.T esting and other quality control techniques are used to the extent TI deems necessary to support this warranty.Except where mandated by government requirements,testing of all parameters of each product is not necessarily performed.TI assumes no liability for applications assistance or customer product design.Customers are responsible for their products and applications using TI components.T o minimize the risks associated with customer products and applications,customers should provide adequate design and operating safeguards.TI does not warrant or represent that any license,either express or implied,is granted under any TI patent right,copyright,mask work right,or other TI intellectual property right relating to any combination,machine,or process in which TI products or services are used. Information published by TI regarding third-party products or services does not constitute a license from TI to use such products or services or a warranty or endorsement e of such information may require a license from a third party under the patents or other intellectual property of the third party,or a license from TI under the patents or other intellectual property of TI.Reproduction of TI information in TI data books or data sheets is permissible only if reproduction is without alteration and is accom-panied by all associated warranties,conditions,limitations,and notices.Reproduction of this information with alteration is an unfair and deceptive business practice.TI is not responsible or liable for such altered rmation of third parties may be subject to additional restrictions.Resale of TI products or services with statements different from or beyond the parameters stated by TI for that product or service voids all express and any implied warranties for the associated TI product or service and is an unfair and deceptive business practice.TI is not responsible or liable for any such statements.TI products are not authorized for use in safety-critical applications(such as life support)where a failure of the TI product would reasonably be expected to cause severe personal injury or death,unless officers of the parties have executed an agreement specifically governing such use.Buyers represent that they have all necessary expertise in the safety and regulatory ramifications of their applications, and acknowledge and agree that they are solely responsible for all legal,regulatory and safety-related requirements concerning their products and any use of TI products in such safety-critical applications,notwithstanding any applications-related information or support that may be provided by TI.Further,Buyers must fully indemnify TI and its representatives against any damages arising out of the use of TI products in such safety-critical applications.TI products are neither designed nor intended for use in military/aerospace applications or environments unless the TI products are specifically designated by TI as military-grade or“enhanced plastic.”Only products designated by TI as military-grade meet military spec-ifications.Buyers acknowledge and agree that any such use of TI products which TI has not designated as military-grade is solely at the Buyer’s risk,and that they are solely responsible for compliance with all legal and regulatory requirements in connection with such use.TI products are neither designed nor intended for use in automotive applications or environments unless the specific TI products are designated by TI as compliant with ISO/TS16949requirements.Buyers acknowledge and agree that,if they use any non-designated products in automotive applications,TI will not be responsible for any failure to meet such requirements.Following are URLs where you can obtain information on other Texas Instruments products and application solutions:ProductsAmplifiersData ConvertersDLP®ProductsDSPClocks and TimersInterfaceLogicPower Mgmt MicrocontrollersRFIDRF/IF and ZigBee®Solutions amplifi/clockswww.ti-rfi/lprfApplicationsAudioAutomotiveBroadbandDigital ControlMedicalMilitaryOptical NetworkingSecurityT elephonyVideo&ImagingWireless/audio/automotive/broadband/digitalcontrol/medical/military/opticalnetwork/security/telephony/video/wirelessMailing Address:T exas Instruments,Post Office Box655303,Dallas,T exas75265 Copyright©2015,T exas Instruments Incorporated。