有点够呛,2407的速度产生50K以内的正弦还算凑合.100k的话,每个正弦周期大概只有10个点而已,波形太差.

是变量未初始化造成的.const类型,CONST_COPY.set1.注意看TI的帮助文档.DSP是代码、数据分离的,上电时候必须把常数copy到RAM区域.*****************************************************************************  boot  v7.01*  Copyright(c)1988-1996TexasInstrumentsInc.**********************************************************************************************************************************************************  Thismodulecontainsthefollowingdefinitions:**        __stack    -Stackmemoryarea*        _c_int0    -Bootfunction*        _var_init  -Functionwhichprocessesinitializationtables*****************************************************************************.global  _c_int0,cinit.global  _main,_abort.global.bss,end*****************************************************************************FORC50,DEFINEADDRESSESOFMEMORYMAPPEDREGISTERS****************************************************************************.if.tms32050.mmregs.endif*****************************************************************************CONSTCOPYOPTION*Ifyoursystemcannotsupportallocatinganinitializedsectiontodata*memory,andyouwantthebootroutinetocopy.constfromprogramto*datamemory,thensetthisCONST_COPYvariableto1**Notethecodethatdoesthecopydependsonyouhavingthefollowing*inyourlinkercommandfile**MEMORY*{*  PAGE0:PROG:.../*'PROG'AND'DATA'AREEXAMPLENAMES*/*  PAGE1:DATA:...*  ...*      }**SECTIONS*{*  ...*  .const:load=PROGPAGE0,run=DATAPAGE1*  {*    __const_run=.;*    *(.c_mark)*    *(.const)*    __const_length=.-__const_run;*  }*  ...*}****************************************************************************CONST_COPY.set1*****************************************************************************FORCONSTCOPY,DEFINETHELOADADDRESSOFTHE.constSECTION*DEPENDSONLINKERCOMMANDFILEBEINGWRITTENASABOVE****************************************************************************.ifCONST_COPY.sect".c_mark".label__const_load.global__const_run,__const_length.text.endif;CONST_COPY*****************************************************************************C50ONLY.  ZEROTHEWAITSTATES.  IFYOURSYSTEMUSESAC5xANDSUPPORTS*ZEROWAITSTATES,CHANGETHISFLAGTO1****************************************************************************ZERO_WAIT_STATES.set0*****************************************************************************DECLARETHESTACK.  SIZEISDETERMINEDBYTHELINKEROPTION-stack****************************************************************************__stack:.usect".stack",0*****************************************************************************FUNCTIONDEF:_c_int0**  1)Setupstack*  2)Setupproperstatus*  3)If"cinit"isnot-1,initglobalvariables*  4)callusers'program*****************************************************************************_c_int0:*****************************************************************************  SETUPINITIALSTACKANDFRAMEPOINTERS****************************************************************************LRLK    AR0,__stack;setupframepointerLRLK    AR1,__stack;setupstackpointer*****************************************************************************INITIALIZESTATUSBITFIELDS*NOT*INITIALIZEDATRESET                  ****************************************************************************ROVM;turnoffoverflowmode*****************************************************************************INITIALIZESTATUSBITFIELDSWHICHARESETTOTHESESAMEVALUESBYRESET.*IFYOURUNTHISROUTINEFROMRESET,YOUCANCOMMENTOUTTHISCODE.****************************************************************************SPM    0;productshiftcountofzero.if.tms32050LDPK0;accessmemorymappedregsAPL#0fff9h,PMST;setNDX=0andTRM=0.endifSSXM;setSXM=1forLALKcinit*****************************************************************************ONTHEC50,OPTIONALLYZEROTHEWAITSTATEREGISTER****************************************************************************.ifZERO_WAIT_STATES&.tms32050LDPK0SPLK#0,PDWSR.endif*****************************************************************************  IFcinitISNOT-1,PROCESSINITIALIZATIONTABLES****************************************************************************LALK    cinit;getpointertoinittablesADDK    1BZ      skip;if(cinit==-1)CALL    _var_init,AR1;var_init()*****************************************************************************  CALLUSER'SPROGRAM****************************************************************************skip:.ifCONST_COPYCALLconst_copy.endifCALL    _main,AR1CALL    _abort,AR1;toneverreturn....page*****************************************************************************FUNCTIONDEF:_var_init**  PROCESSINITIALIZATIONTABLES.  TABLESAREIN*  PROGRAMMEMORYINTHEFOLLOWINGFORMAT:**      .word  *      .word  *      .word  *      .word  ...**  Theinittableisterminatedwithazerolength*****************************************************************************_var_init:*****************************************************************************C2x/C2xxVERSION****************************************************************************.if.tms32025|.tms3202xx        ADRK    2;allocatetwowordsoflocalmemory        LALK    cinit;loadaccumulatorwithbaseoftableLARP    AR0*****************************************************************************  READINITRECORDHEADER*  ANINITRECORDWITHAZEROLENGTHTERMINATESLIST****************************************************************************loop:TBLR    *+;readlengthADDK    1TBLR    *;readaddressLAR    AR2,*-;loadvariableaddressintoar2LAR    AR3,*,AR3;loadcountintoar3BANZ    copy,*-,AR2;checkforendoftable*****************************************************************************  ATENDOFLIST,RETURNTOCALLER****************************************************************************        LARP    AR1SBRK    2;deallocatelocalsRET;returnto_c_int0*****************************************************************************  PERFORMTHECOPYOFDATAFROMPROGRAMTODATA****************************************************************************copy:ADDK    1;incrementpointertodata    TBLR    *+,AR3;copydatafromprogramtovariableBANZ    copy,*-,AR2;untilcountiszeroADDK    1;pointtobeginningofnextrecordB      loop,AR0;goprocessnextrecord.endif;.tms32025|.tms3202xx*****************************************************************************C5xVERSION****************************************************************************.if.tms32050        LALK    cinit;loadaccumulatorwithbaseoftableLDPK0;setpageto0forAR2==>BRCR*****************************************************************************  READINITRECORDHEADER*  ANINITRECORDWITHAZEROLENGTHTERMINATESLIST****************************************************************************loop:TBLR*;readlengthADDK1LARAR2,*,AR2;intoAR2BANZcontinue,*-,AR1;continueifnotzero,decrement*****************************************************************************  ATENDOFLIST,RETURNTOCALLER****************************************************************************RETcontinue:LMMRBRCR,AR2;BRCR=AR2=length-1TBLR*ADDK1LARAR2,*,AR2;AR2  =address*****************************************************************************  PERFORMTHECOPYOFDATAFROMPROGRAMTODATA****************************************************************************RPTBcopy-1TBLR*+ADDK1NOPcopy:B      loop,AR1;goprocessnextrecord.endif;.tms32050.page*****************************************************************************CONSTCOPYROUTINE-COPIESTHE.constSECTIONFROMPROGRAMTODATAMEMORY****************************************************************************.ifCONST_COPYconst_copy:*****************************************************************************C2x/C2xxVERSION-CAN'TUSERPT.  COUNTERISONLY8-BITSWIDE****************************************************************************.if.tms32025|.tms3202xxLARPAR3LRLKAR3,#__const_length;AR3=lengthofsectionBANZcont,*-,AR2;CheckforzeroanddecrementBquit;if(zero)quitcont:LRLKAR2,#__const_run;AR2=constaddressindataLALK#__const_load;ACC=constaddressinprogramcloop:TBLR*+,AR3;copyfromprogramtodataADDK1;incrementprogramaddressBANZcloop,*-,AR2;checkforzeroanddecrementquit:LARPAR1;restoreARPtoSPRET;return.endif;.tms32025|.tms3202xx*****************************************************************************C5xVERSION-USESRPTK****************************************************************************.if.tms32050LALK#__const_length;loadlengthofconstsectionBZquit;if0,quitLRLKAR2,#__const_run;AR2=constaddressindataLARPAR2RPT#__const_length-1;repeatlengthtimesBLKP#__const_load,*+;blockcopyfromprogramLARPAR1;restoreARPtoSPquit:RET;return.endif;.tms32050.endif;CONST_COPY.end

这个东东,我很久前用过,很不错的芯片.不过,不要浪费时间,已经停产了.仿真器很贵,以前要12k一套仿真器(easyPack).现在不知道多少.196系列没有flash类型,调试和修改代价太大.

很久很久前写的,可以正常运行.或许你用的到

#include                                    //8051registers#defineTick  2000                                    //2000x500us=1s#defineT500us(256-250)                              //500us时间常数(6M)//0,1,2,3,4,5,6,7,8,9,-,"全灭"codeunsignedcharLEDMAP[]={0x3f,0x06,0x5b,0x4f,0x66,0x6d,  0x7d,0x07,0x7f,0x6f,0x40,0x00};                    //八段管显示码unsignedcharLED[6];                                  //LED各个显示位的值(段码)unsignedcharHour,Minute,Second;                      //显示的时、分、秒unsignedint  C500us;                                  //500us记数单元unsignedcharStatus_dis;                              //LED显示状态.unsignedint  Key_value;                              //键值unsignedcharKey_sum;                                //键值总和unsignedcharBEEP;                                    //蜂鸣标志signed  charFlash_CNT;                              //闪烁计数器//延时子程序voidDelay(Length)                                    //延时,ms数量级unsignedcharLength;                                  //延时长度{  unsignedchari;  for(i=0;i

分别是:KeiluVision2软件中文入门教程.pdf        c51子程序集.txt

1113634786.pdf1113634805.txt

TI的,仪表专用、低功耗芯片,MSP430F427.刚好符合你的要求

用555