msp430g2553基本程序实例Word格式.docx

msp430g2553基本程序实例Word格式.docx

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DCOCTL=CALDCO_1MHZ;

//SetDCOstep+modulation

BCSCTL3|=LFXT1S_2;

//SetLFXT1

P1DIR=BIT6;

//P1.6output（greenLED）

P1OUT=0;

//LEDoff

IFG1&

=~OFIFG;

//ClearOSCFaultflag

BCSCTL2|=SELM_1+DIVM_0;

//SetMCLK

for（;

;

）

P1OUT=BIT6;

//P1.6on（greenLED）

_delay_cycles（100）;

P1OUT=0;

//greenLEDoff

_delay_cycles（5000）;

}

2.

//LaunchPadLab3-SoftwarePortInterruptService

///|\||

//--o--|P1.3P1.0|-->

//\|/

P1DIR|=BIT0;

//SetP1.0tooutputdirection

P1IES|=BIT3;

//P1.3Hi/loedge

P1IFG&

=~BIT3;

//P1.3IFGcleared

P1IE|=BIT3;

//P1.3interruptenabled

_BIS_SR（LPM4_bits+GIE）;

//EnterLPM4w/interrupt

//Port1interruptserviceroutine

#pragmavector=PORT1_VECTOR

__interruptvoidPort_1（void）

if（P1IFG&

BIT3）

P1OUT^=BIT0;

//P1.0=toggle

P1IFG&

3.

//LaunchPadLab5-ADC10,SampleA10TempandConverttooCandoF

//MSP430G2452

//|A10|

#include"

msp430g2553.h"

longtemp;

longIntDegF;

longIntDegC;

//StopWDT

//ConfigureADC10

ADC10CTL1=INCH_10+ADC10DIV_3;

//ChooseADCChannelasTempSensor

ADC10CTL0=SREF_1+ADC10SHT_3+REFON+ADC10ON+ADC10IE;

//ChooseADCRefsource

__enable_interrupt（）;

//Enableinterrupts.

TACCR0=30;

//DelaytoallowReftosettle

TACCTL0|=CCIE;

//Compare-modeinterrupt.

TACTL=TASSEL_2|MC_1;

//TACLK=SMCLK,Upmode.

LPM0;

//Waitfordelay.

TACCTL0&

=~CCIE;

//DisabletimerInterrupt

__disable_interrupt（）;

while

（1）

ADC10CTL0|=ENC+ADC10SC;

//Samplingandconversionstart

__bis_SR_register（LPM0_bits+GIE）;

//LPM0withinterruptsenabled

//oF=（（A10/1024）*1500mV）-923mV）*1/1.97mV=A10*761/1024-468

temp=ADC10MEM;

IntDegF=（（temp-630）*761）/1024;

//oC=（（A10/1024）*1500mV）-986mV）*1/3.55mV=A10*423/1024-278

IntDegC=（（temp-673）*423）/1024;

__no_operation（）;

//SETBREAKPOINTHERE

//ADC10interruptserviceroutine

#pragmavector=ADC10_VECTOR

__interruptvoidADC10_ISR（void）

__bic_SR_register_on_exit（LPM0_bits）;

//ClearCPUOFFbitfrom0（SR）

#pragmavector=TIMER0_A0_VECTOR

__interruptvoidta0_isr（void）

TACTL=0;

4.

//MSP430F20xxDemo-BasicClock,OutputBufferedSMCLK,ACLKandMCLK/10

//Description:

BufferACLKonP2.0,defaultSMCLK（DCO）onP1.4andMCLK/10on

//P1.5.

//ACLK=LFXT1=VLO,MCLK=SMCLK=defaultDCO

////*ExternalwatchcrystalinstalledonXINXOUTisrequiredforACLK*//

//MSP430F20xx

//|||

//|P1.4/SMCLK|-->

SMCLK=DefaultDCO

//|P1.5|-->

MCLK/10=DCO/10

//|P1.0/ACLK|-->

ACLK=VLO

//M.Buccini/L.Westlund

//TexasInstrumentsInc.

//October2005

//BuiltwithIAREmbeddedWorkbenchVersion:

3.40A

msp430x20x3.h>

unsignedchars;

WDTCTL=WDTPW+WDTHOLD;

//StopWatchdogTimer

//LFXT1=VLO

//DCOCTL=0;

//BCSCTL1=CALBC1_16MHZ;

//DCOCTL=CALBC1_16MHZ;

P1DIR|=0x31;

//P1.0,5andP1.4outputs

P1SEL|=0x11;

//P1.0,4ACLK/VLO,SMCLK/DCOoutput

//SMCLKSub-SystemMainClk，ACLK和SMCLK可以通过复用引脚输出，MCLK不能直接输出体现,MCLK可以配置为VLO或者DCO

P1OUT|=0x20;

//P1.5=1,通过开关P1.5来体现MCLK，这两条指令的周期大概为SMCLK的1/10

P1OUT&

=~0x20;

//20;

5.

//MSP430xG46xDemo-FLL+,RunsInternalDCOat8MHz

ThisprogramdemonstratessettingtheinternalDCOtorunat

//8MHzwithauto-calibrationbytheFLL+.

//ACLK=LFXT1=32768Hz,MCLK=SMCLK=DCO=（121+1）x2xACLK=7995392Hz

////*AnexternalwatchcrystalbetweenXIN&

XOUTisrequiredforACLK*//

//MSP430xG461x

//|||32kHz

//|P1.1|-->

MCLK=8MHz

ACLK=32kHz

//K.Quiring/M.Mitchell

//October2006

3.41A

//*****************************************************************************

msp430xG46x.h>

FLL_CTL0|=DCOPLUS+XCAP18PF;

//DCO+set,freq=xtalxDxN+1

SCFI0|=FN_4;

//x2DCOfreq,8MHznominalDCO

SCFQCTL=121;

//（121+1）x32768x2=7.99MHz

P1DIR=0x22;

//P1.1&

P1.5tooutputdirection

P1SEL=0x22;

P1.5tooutputMCLK&

ACLK

while

（1）;

//Loopinplace

6.

//****************************************************************************

//MSP430xG46xDemo-FlashIn-SystemProgramming,CopySegAtoSegB

ThisprogramfirsterasesflashsegA,thenitincrementsall

//valuesinsegA,theniterasessegB,thencopiessegAtosegB.

//AssumedMCLK550kHz-900kHz.

////*SetBreakpointonNOPintheMainlooptoavoidStressingFlash*//

//M.Mitchell

//Feb2005

3.21A

charvalue;

//8-bitvaluetowritetosegmentA

//Functionprototypes

voidwrite_SegA（charvalue）;

voidcopy_A2B（void）;

FCTL2=FWKEY+FSSEL0+FN0;

//MCLK/2forFlashTimingGenerator

value=0;

//Initializevalue

while

（1）//Repeatforever

write_SegA（value++）;

//WritesegmentA,incrementvalue

copy_A2B（）;

//CopysegmentAtoB

_NOP（）;

voidwrite_SegA（charvalue）

char*Flash_ptr;

//Flashpointer

unsignedinti;

Flash_ptr=（char*）0x1080;

//InitializeFlashpointer

FCTL1=FWKEY+ERASE;

//SetErasebit

FCTL3=FWKEY;

//ClearLockbit

*Flash_ptr=0;

//DummywritetoeraseFlashsegment

FCTL1=FWKEY+WRT;

//SetWRTbitforwriteoperation

for（i=0;

i<

128;

i++）

*Flash_ptr++=value;

//Writevaluetoflash

FCTL1=FWKEY;

//ClearWRTbit

FCTL3=FWKEY+LOCK;

//SetLOCKbit

voidcopy_A2B（void）

char*Flash_ptrA;

//SegmentApointer

char*Flash_ptrB;

//SegmentBpointer

Flash_ptrA=（char*）0x1080;

//InitializeFlashsegmentApointer

Flash_ptrB=（char*）0x1000;

//InitializeFlashsegmentBpointer

*Flash_ptrB=0;

//DummywritetoeraseFlashsegmentB

*Flash_ptrB++=*Flash_ptrA++;

//CopyvaluesegmentAtosegmentB

7.

//MSP430xG46xDemo-SoftwarePortInterruptonP1.0fromLPM4

Ahi/lowtransitiononP1.0willtriggerP1_ISRwhich,

//togglesP2.1.NormalmodeisLPM4~0.1uA.LPM4currentcanbemeasured

//withtheLEDremoved,allunusedP1.x/P2.xconfiguredasoutputorinputs

//pulledhighorlow,andensuretheP2.0interruptinputdoesnotfloat.

//ACLK=32.768kHz,MCLK=SMCLK=defaultDCO

///|\||

//--|RST|

//--o--|P1.0P2.1|-->

FLL_CTL0|=XCAP14PF;

//Configureloadcaps

P2DIR=BIT1;

//SetP2.1tooutputdirection

P1IES=BIT0;

//H-Ltransition

P1IE=BIT0;

//Enableinterrupt

//LPM4,enableinterrupts

__interruptvoidPort1_ISR（void）

unsignedvolatileinti;

for（i=10000;

i>

0;

i--）;

//Debouncedelay

=~BIT0;

//ClearP1IFG

if（（P1IN&

0x01）==0）

P2OUT^=0x02;

//ToggleP2.1usingexclusive-OR

8.

//************************