svpwm源程序.doc
- 文档编号:1224961
- 上传时间:2023-04-30
- 格式:DOC
- 页数:11
- 大小:48.50KB
svpwm源程序.doc
《svpwm源程序.doc》由会员分享,可在线阅读,更多相关《svpwm源程序.doc(11页珍藏版)》请在冰点文库上搜索。
/TIFile$Revision:
/main/8$
//Checkin$Date:
April21,200815:
41:
53$
//###########################################################################
//
//FILE:
Example_2833xEPwmUpDownAQ.c
//
//TITLE:
空间电压矢量产生程序SVPWM
//
//ASSUMPTIONS:
//
//ThisprogramrequirestheDSP2833xheaderfiles.
//
//MonitorePWM1-ePWM3pinsonanoscilloscopeasdescribed
//below.
//
//EPWM1AisonGPIO0-------5脚
//EPWM1BisonGPIO1-------6脚
//
//EPWM2AisonGPIO2-------7脚
//EPWM2BisonGPIO3-------10脚
//
//EPWM3AisonGPIO4-------11脚
//EPWM3BisonGPIO5-------12脚
//
//
//###########################################################################
//$TIRelease:
DSP2833x/DSP2823xHeaderFilesV1.20$
//$ReleaseDate:
August1,2008$
//###########################################################################
#include"DSP28x_Project.h"//DeviceHeaderfileandExamplesIncludeFile
//Prototypestatementsforfunctionsfoundwithinthisfile.
voidInitEPwm1Example(void);
voidInitEPwm2Example(void);
voidInitEPwm3Example(void);
voidsvpwmGen(void);
interruptvoidsvpwm_isr(void);
volatilefloatUalpha,Ubeta;
volatilefloatA,B,C;
volatilefloatT0,T1,T2,T3,T4,T5,T6;
volatilefloatTaon,Tbon,Tcon;
floatUa,Ub,Uc;
floatTs;
inta,b,c;
intN=0,sector=0;
#defineTPRD800
#defineUdc800
voidmain(void)
{
//Step1.InitializeSystemControl:
//PLL,WatchDog,enablePeripheralClocks
//ThisexamplefunctionisfoundintheDSP2833x_SysCtrl.cfile.
InitSysCtrl();
//Step2.InitalizeGPIO:
//ThisexamplefunctionisfoundintheDSP2833x_Gpio.cfileand
//illustrateshowtosettheGPIOtoit'sdefaultstate.
//InitGpio();//Skippedforthisexample
//ForthiscasejustinitGPIOpinsforePWM1,ePWM2,ePWM3
//ThesefunctionsareintheDSP2833x_EPwm.cfile
InitEPwm1Gpio();
InitEPwm2Gpio();
InitEPwm3Gpio();
//Step3.ClearallinterruptsandinitializePIEvectortable:
//DisableCPUinterrupts
DINT;
//InitializethePIEcontrolregisterstotheirdefaultstate.
//ThedefaultstateisallPIEinterruptsdisabledandflags
//arecleared.
//ThisfunctionisfoundintheDSP2833x_PieCtrl.cfile.
InitPieCtrl();
//DisableCPUinterruptsandclearallCPUinterruptflags:
IER=0x0000;
IFR=0x0000;
//InitializethePIEvectortablewithpointerstotheshellInterrupt
//ServiceRoutines(ISR).
//Thiswillpopulatetheentiretable,eveniftheinterrupt
//isnotusedinthisexample.Thisisusefulfordebugpurposes.
//TheshellISRroutinesarefoundinDSP2833x_DefaultIsr.c.
//ThisfunctionisfoundinDSP2833x_PieVect.c.
InitPieVectTable();
//Interruptsthatareusedinthisexamplearere-mappedto
//ISRfunctionsfoundwithinthisfile.
EALLOW;//ThisisneededtowritetoEALLOWprotectedregisters
PieVectTable.EPWM1_INT=&svpwm_isr;
//PieVectTable.EPWM2_INT=&epwm2_isr;
//PieVectTable.EPWM3_INT=&epwm3_isr;
EDIS;//ThisisneededtodisablewritetoEALLOWprotectedregisters
//Step4.InitializealltheDevicePeripherals:
//ThisfunctionisfoundinDSP2833x_InitPeripherals.c
//InitPeripherals();//Notrequiredforthisexample
//Forthisexample,onlyinitializetheePWM
EALLOW;
SysCtrlRegs.PCLKCR0.bit.TBCLKSYNC=0;
EDIS;
InitEPwm1Example();
InitEPwm2Example();
InitEPwm3Example();
EALLOW;
SysCtrlRegs.PCLKCR0.bit.TBCLKSYNC=1;
EDIS;
//Step5.Userspecificcode,enableinterrupts:
//EnableCPUINT3whichisconnectedtoEPWM1-3INT:
IER|=M_INT3;
//EnableEPWMINTninthePIE:
Group3interrupt1-3
PieCtrlRegs.PIEIER3.bit.INTx1=1;
//PieCtrlRegs.PIEIER3.bit.INTx2=1;
//PieCtrlRegs.PIEIER3.bit.INTx3=1;
//EnableglobalInterruptsandhigherpriorityreal-timedebugevents:
EINT;//EnableGlobalinterruptINTM
ERTM;//EnableGlobalrealtimeinterruptDBGM
//Step6.IDLEloop.Justsitandloopforever(optional):
for(;;)
{
asm("NOP");
}
}//main结束
//=======================================================================
interruptvoidsvpwm_isr(void)
{
svpwmGen();
//SetComparevalues
EPwm1Regs.CMPA.half.CMPA=Taon;//adjustdutyforoutputEPWM1A
EPwm2Regs.CMPA.half.CMPA=Tbon;//adjustdutyforoutputEPWM2A
EPwm3Regs.CMPA.half.CMPA=Tcon;//adjustdutyforoutputEPWM3A
//ClearINTflagforthistimer
EPwm1Regs.ETCLR.bit.INT=1;
//Acknowledgethisinterrupttoreceivemoreinterruptsfromgroup3
PieCtrlRegs.PIEACK.all=PIEACK_GROUP3;
}
voidInitEPwm1Example()
{
//SetupTBCLK
EPwm1Regs.TBPRD=TPRD;//TPRD=800,Period=1600TBCLKcounts
EPwm1Regs.TBPHS.half.TBPHS=0;//SetPhaseregistertozero
EPwm1Regs.TBCTR=0x0000;//Clearcounter
//Setupcountermode
EPwm1Regs.TBCTL.bit.CTRMODE=TB_COUNT_UPDOWN;//Symmetricalmode
EPwm1Regs.TBCTL.bit.PHSEN=TB_DISABLE;//////////////////////////Mastermodule
EPwm1Regs.TBCTL.bit.PRDLD=TB_SHADOW;
EPwm1Regs.TBCTL.bit.SYNCOSEL=TB_CTR_ZERO;/////////////////////Syncdown-streammodule
//SetupTpwm
EPwm1Regs.TBCTL.bit.HSPCLKDIV=TB_DIV2;//ClockratiotoSYSCLKOUT
EPwm1Regs.TBCTL.bit.CLKDIV=5;//原为TB_DIV1,对于上下计数:
Tpwm=2xTBPRDxTTBCLKFpwm=1/(Tpwm)
//Setupshadowing
EPwm1Regs.CMPCTL.bit.SHDWAMODE=CC_SHADOW;
EPwm1Regs.CMPCTL.bit.SHDWBMODE=CC_SHADOW;
EPwm1Regs.CMPCTL.bit.LOADAMODE=CC_CTR_ZERO;//loadonCTR=Zero
EPwm1Regs.CMPCTL.bit.LOADBMODE=CC_CTR_ZERO;//loadonCTR=Zero
//Setactions
EPwm1Regs.AQCTLA.bit.CAU=AQ_SET;//setactionsforEPWM1A
EPwm1Regs.AQCTLA.bit.CAD=AQ_CLEAR;
//SetDead-band
EPwm1Regs.DBCTL.bit.OUT_MODE=DB_FULL_ENABLE;//enableDead-bandmodule
EPwm1Regs.DBCTL.bit.POLSEL=DB_ACTV_HIC;//ActiveHicomplementary
EPwm1Regs.DBFED=50;//FED=50TBCLKs
EPwm1Regs.DBRED=50;//RED=50TBCLKs
//InterruptwherewewillchangetheCompareValues
EPwm1Regs.ETSEL.bit.INTSEL=ET_CTR_ZERO;//SelectINTonZeroevent
EPwm1Regs.ETSEL.bit.INTEN=1;//EnableINT
EPwm1Regs.ETPS.bit.INTPRD=ET_3RD;//GenerateINTon3rdevent
/*
//SetComparevalues
//==============================================================
EPwm1Regs.CMPA.half.CMPA=500;//adjustdutyforoutputEPWM1A
EPwm2Regs.CMPA.half.CMPA=600;//adjustdutyforoutputEPWM2A
EPwm3Regs.CMPA.half.CMPA=700;//adjustdutyforoutputEPWM3A
*/
}
voidInitEPwm2Example()
{
//SetupTBCLK
EPwm2Regs.TBPRD=TPRD;//TPRD=800,Period=1600TBCLKcounts
EPwm2Regs.TBPHS.half.TBPHS=0;//SetPhaseregistertozero
EPwm2Regs.TBCTR=0x0000;//Clearcounter
//Setupcountermode
EPwm2Regs.TBCTL.bit.CTRMODE=TB_COUNT_UPDOWN;//Symmetricalmode
EPwm2Regs.TBCTL.bit.PHSEN=TB_ENABLE;//////////////////////////////Slavemodule
EPwm2Regs.TBCTL.bit.PRDLD=TB_SHADOW;
EPwm2Regs.TBCTL.bit.SYNCOSEL=TB_SYNC_IN;///////////////////////////syncflow-through
//SetupTpwm
EPwm2Regs.TBCTL.bit.HSPCLKDIV=TB_DIV2;//ClockratiotoSYSCLKOUT
EPwm2Regs.TBCTL.bit.CLKDIV=5;//ForUpandDownCount--Tpwm=2xTBPRDxTTBCLK;Fpwm=1/(Tpwm)
//Setupshadowing
EPwm2Regs.CMPCTL.bit.SHDWAMODE=CC_SHADOW;
EPwm2Regs.CMPCTL.bit.SHDWBMODE=CC_SHADOW;
EPwm2Regs.CMPCTL.bit.LOADAMODE=CC_CTR_ZERO;//loadonCTR=Zero
EPwm2Regs.CMPCTL.bit.LOADBMODE=CC_CTR_ZERO;//loadonCTR=Zero
//Setactions
EPwm2Regs.AQCTLA.bit.CAU=AQ_SET;//setactionsforEPWM2A
EPwm2Regs.AQCTLA.bit.CAD=AQ_CLEAR;
//SetDead-band
EPwm2Regs.DBCTL.bit.OUT_MODE=DB_FULL_ENABLE;//enableDead-bandmodule
EPwm2Regs.DBCTL.bit.POLSEL=DB_ACTV_HIC;//ActiveHicomplementary
EPwm2Regs.DBFED=50;//FED=50TBCLKs
EPwm2Regs.DBRED=50;//RED=50TBCLKs
//InterruptwherewewillchangetheCompareValues
EPwm2Regs.ETSEL.bit.INTSEL=ET_CTR_ZERO;//SelectINTonZeroevent
EPwm2Regs.ETSEL.bit.INTEN=1;//EnableINT
EPwm2Regs.ETPS.bit.INTPRD=ET_3RD;//GenerateINTon3rdevent
//SetComparevalues
}
voidInitEPwm3Example()
{
//SetupTBCLK
EPwm3Regs.TBPRD=TPRD;//TPRD=800,Period=1600TBCLKcounts
EPwm3Regs.TBPHS.half.TBPHS=0;//SetPhaseregistertozero
EPwm1Regs.TBCTR=0x0000;//Clearcounter
//Setupcountermode
EPwm3Regs.TBCTL.bit.CTRMODE=TB_COUNT_UPDOWN;//Symmetricalmode
EPwm3Regs.TBCTL.bit.PHSEN=TB_ENABLE;////////////////////////////////Slavemodule
EPwm3Regs.TBCTL.bit.PRDLD=TB_SHADOW;
EPwm3Regs.TBCTL.bit.SYNCOSEL=TB_SYNC_IN;//////////////////////////////syncflow-through
//SetupTpwm
EPwm3Regs.TBCTL.bit.HSPCLKDIV=TB_DIV2;//ClockratiotoSYSCLKOUT
EPwm3Regs.TBCTL.bit.CLKDIV=5;//ForUpandDownCount:
Tpwm=2xTBPRDxTTBCLK;Fpwm=1/(Tpwm)
//Setupshadowing
EPwm3Regs.CMPCTL.bit.SHDWAMODE=CC_SHADOW;
EPwm3Regs.CMPCTL.bit.SHDWBMODE=CC_SHADOW;
EPwm3Regs.CMPCTL.bit.LOADAMODE=CC_CTR_ZERO;//loadonCTR=Zero
EPwm3Regs.CMPCTL.bit.LOADBMODE=CC_CTR_ZERO;//loadonCTR=Zero
//Setactions
EPwm3Regs.AQCTLA.bit.CAU=AQ_SET;//setactionsforEPWM3A
EPwm3Regs.AQCTLA.bit.CAD=AQ_CLEAR;
//SetDead-band
EPwm3Regs.DBCTL.bit.OUT_MODE=DB_FULL_ENABLE;//enableDead-bandmodule
EPwm3Regs.DBCTL.bit.POLSEL=DB_ACTV_HIC;//ActiveHicomplementary
EPwm3Regs.DBFED=50;//FED=50TBCLKs
EPwm3Regs.DBRED=50;//RED=50TBCLKs
//InterruptwherewewillchangetheCompareValues
EPwm3Regs.ETSEL.bit.INTSEL=ET_CTR_ZERO;//SelectINTonZeroevent
EPwm3Regs.ETSEL.bit.INTEN=1;//EnableINT
EPwm3Regs.ETPS.bit.INTPRD=ET_3RD;//GenerateINTon3rdevent
//SetComparevalues
}
voidsvpwmGen(
- 配套讲稿:
如PPT文件的首页显示word图标,表示该PPT已包含配套word讲稿。双击word图标可打开word文档。
- 特殊限制:
部分文档作品中含有的国旗、国徽等图片,仅作为作品整体效果示例展示,禁止商用。设计者仅对作品中独创性部分享有著作权。
- 关 键 词:
- svpwm 源程序
![提示](https://static.bingdoc.com/images/bang_tan.gif)