MC9S08AW16单片机及其在电动助力转向中的应用

©1994-2009ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.(,212013):MC9S08AW16,CPU,:MC9S08AW16;EPS;BDMHCS08;:U463.4:B:1006-0006(2009)05-0118-04MC9S08AW16andItsApplicationinEPSSystemZHENGRong2liang,YUFang2lei,CHENLong(SchoolofAutomotiveandTrafficEngineering,JiangsuUniversity,Zhenjiang212013,China)Abstract:ByintroducingthesourcesofMC9S08AW16anditsdevelopmentprocedure,theadvantagesofBDMdesigningtoolandthesuperiorityoftheMCUweredemonstrated.TheapplicationofitinEPS(ElectricPowerSteering)isintroducedindetail;atthesametimehowtochangethefrequencyofinternalclockgeneratorwasalsoexplained.Keywords:MC9S08AW16;EPS;BDMHCS08;On2lineSimulation1EPS6PhilipsP87C591,,[12],,,,,,,,,EPS,,()MC9S08AW16[3]PhilipsP87C591,EPS,2MC9S08AW16[4],-40125,44,1[5],2.75.5V,HCS08,CPU40MHz,20MHz16k(Flash),1kRAMFlash,,,,Flash:1810(ADC),,,;2SCI,SCI;1SPI;100kpsC;216,2,6,PWMPWM,;(KBI),8(I/O)34,;,,2(ICG)4:,,(FLL),33.1,BDMHCS08,BDM,freescale.comSourceBDM,(BDC),(DBG)BDM:1)1.85.0V;2)1.020MHz;3);4)CPU;:2008-10-11:(50475121)811365Vol.36No.5200910Tractor&FarmTransporterOct.,2009©1994-2009ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.)(GO)(TRANCE1);6)2,USB(PC),6,PCCodeWarrior6.1,,BDMBDMMC9S08AW16Flash,CodeWarrior6.12Fig.2UseofBDM3.2,EMC(),EPSMC9S08AW16,:1),,,CodeWarrior6.1,(BKGD/MS)2),P87C591,,,,220V,12V220V,,,,USB,BDM5VBDM,3)P87C591,,,,MC9S08AW16,BDM,,4)4EPSEPS:H3(12V),5V,17,29,34;H,16,30,35,39626,1,,3,36BDMBKGDUSB5V4,911:MC9S08AW16©1994-2009ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.:,,,,,10A/D,,PID,PWM,,,PWM,,,,,,,,0,,,EPS,,,,N,,,M,,PWMH(4VMOS),55.1:rc,32100kHz,116MHz,4MHz,8MHz,ICG,ICG,44ICGFig.4RunningProcedureofICG,FLL,ICG(fICGOUT)(fBUSCLK)2[6]fICGOUT=fEXTPN/R,fEXT;PFLL;N;RICG,ICG1(ICG1)2(ICG2),55ICGFig.5ICGControlRegisterICG1:HGOHGO=0HGO=1RANGERANGE=0,FLLP=64RANGE=1,FLLP=1REFSREFS=0REFS=1CLKSCLKS=00CLKS=01FLL,CLKS=10FLL,CLKS=11FLL,OSCTENOSCTEN=0CLKS=10,,ICGOFF,OSCTEN=1ICGOFF,LOCDLOCD=0LOCD=1,ICG2:LOLRELOLRE=0LOLRE=1MFDMFD=000,N=4;MFD=001,N=6;MFD=010,N=8;MFD=011,N=10;MFD=100,N=12;MFD=101,N=14;MFD=110,N=16;MFD=111,N=18LOCRLOCRE=0LOCRE=1RFDRFD=000,R=1;RFD=001,R=2;RFD=010,R=4;RFD=011,R=8;RFD=100,R=16;RFD=101,R=32;RFD=110,R=64;RFD=111,R=1280215200910©1994-2009ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.:HGO=0,;4MHz,RANGE=1,,P=1;REFS=1;CLKS=11,FLL,;OSCTEN=0,OFF;LOCD=0,;LOLRE=0,;MFD=000,N=4;LOCRE=0,;RFD=000,R=1C:ICG1=01111000;ICG2=00000000,fICGOUT=414/1=16MHz,fBUSCLK=fICGOUT/2=8MHz,5.2,MC9S08AW16FlashRAM,FlashRAM,MCU,,Flash(NVOPTFOPT)Flash(FCNFG),66FlashFig.6FlashOptionsRegisterandConfigurationRegisterKEYEN,FNORED,SECKEYACC,:KEYENKEYEN=0,FlashKEYEN=1FNOREDFNORED=0,FNORED=1SECSEC=00,01,11SEC=10KEYACCKEYACC=0NVBACKKEY-NVBACKKEY+7FLASHKEYACC=1,FlashNVBACKKEY-NVBACKKEY+78FOPTNVOPTNVOPT,FOPT,2:1)SEC=00,KEYEN=0,FNORED=0,KEYACC=0,NVOPT=00000000;FCNFG=00000000;2)SEC=00,KEYEN=1,FNORED=0,NVOPT=10000000:FCNFGKEYACC1,FCNFG=00100000;NVBACKKEY-NVBACKKEY+7;KEYACC08Flash,SEC10,,,MC9S08AW16EPS,,6,MC9S08AW16,,,,:[1],,.[J].:,2008,29(1):2124.[2]NAKAYAMAT,SUDAE.PresentandFutureofElectricPowerSteering[J].InternationalJournalofVehicleDesign,1994,15(3,4,5):243254.[3].8()[DB/OL].[2008-05-10].[4].[EB/OL].[2008-08-15].[5],MC9S08AW60[DB/OL].[2008-08-25].[6],MC9S08AW60[DB/OL].[2008-09-05].():(1945-),,,,;(1984-),,,,(117)4,,,,,:[1].ADAMS[M].:,2002.[2],,.ADAMS[J].(),2006,29(7):814817.[3].[D].:,2002.[4]GB/T6323.2-1994,[S].[5].[M].:,1990.[6].[M].:,1988.():(1963-),,,;(1980-),;(1965-),,,121:MC9S08AW16