msp430计算器设计

1、iiincludeSinclude double r;iiincludeSdefine RS_1 P3OUT|=BIT0Sdefine RS_0 P3OUT&=BIT0Sdefine RW_1 P3OUT|=BIT1Sdefine RW_0 P3OUT&=BIT1Sdefine E_1 P3OUT =BIT2Sdefine E_0 P3OUT&=BIT2 define DATA P4OUTSdefine data_dir P4DIRdefine KEYDIR P5DIRSdefine KEYOUT P5OUTiidefine KEYIN P5INSdefine led

2、P2OUTdefine LED1 P2DIR=0XFF; define uchar unsigned char Sdefine uint unsigned int chartablel16.=l/r:char table216 = ,; char flag;int flagl:/*延时*/void delay(void) unsigned int i, j: for(i=0;i50;i+) for(j=0:j10;j十+) J*/*消抖延时*/void delay_key(void)int i,j;for(i=0;i500;i+) for(j=0:j100;j十+void delayms(uc

3、har ms)int i, j；for(i=0;ims;i卄)for(j=0;jlf) :tablel1 :break;case 10：write_data(?2) : tablel2 ;break;case 11 ：write-data(3) :tablel3 ;break;case 12：if (flag=O) lcd_string(l, 0, shift”):flag=l;write_com(0 x80+i):break;elselcd_string(l, 0, ”);write_com(0 x80+i):flag=0;break; case 13:if (flag=0) write_d

4、ata(?0) :tablel+iZ=，0 :break; elsewrite_data(,(*);tablel+iZ=，C ;break; case 14:if (flag=0) write_data(,):tablelC+ij :break; elsewrite_data(,)9):tablel+iZ=，) ;break; case 15：write_data(, =,) :tablel=，:break; case 16: if (flag=O)write_com(0 x80+il) :i-: elseWDTCTL=OXOO;ifCtablelCi二)cal(tablel);sprintf

5、(table2, r);lcd_string(l, 6,table2);*=*函数名：多项式运算*函数功能描述：实现多项式运算*参数：char型数组*返回值：double结果=*#includeSincludeOSincludeOvoid cal(char a)int i=l, j, k, m, cnt=0, tl=0, t2=0, t3=0;char nibo20J = O, zhan215 = O : l=x;2=+cnt;2;nibotl+1= 0 ; m=i: break; zhan3十+t3：=num-data五dl;else if (nibojj=，+，) zhan3t3-lj=z

6、han3t3-lJ+zhan3t3Z； t3;else if (nibojj=，)zhan3 Zt3lZ=zhan3 Zt3-lZzhan3;t3;else if (niboj=,*) zhan3t3-lj=zhan3t3-lZ*zhan3t3Z； t3;else if (nibojj=，P )zhan3 Zt3lZ=zhan3 3一1/zhan3;t3;else if(n iboj=A) zhan3t3*1=pow(zhan3t3*1, zhan3 t3); t3-;else if (niboj=，) zhan3t3J=sqrt (zhan3t3j):j卄；r=zhan3t3Z；memory

7、 management functions and variables.Copyright (c) Borland International 1987,1988 All Rights Reserved */_STDC_iidefine _CdeclSeiseSdefine _Cdecl cdecl#endifSifndef _STDDEFSdefine _STDDEFSifndef _PTRDIFF_TSdefine _PTRDIFF_T#if defined(_LARGE_)defined( HUGE_)d typedef long ptrdiff_t:Seisetypedef int p

8、trdiff_t:#endif#endifSifndef _SIZE_Tdefine _SIZE_Ttypedef unsigned size_t:#endifSendif Sifndef NULL#if defined (_TmT_) | define NULL 0Seiseiidefine NULLOL endif endif int _Cdecl brk (void *addr);void *_Cdecl calloc(size_t nitems, size_t size);#if defined (_COMPACT_) | | defined (_LARGE_) | | defined

9、 (_HUGE_) unsigned long _Cdecl coreleft(void);Seiseunsigned _Cdecl coreleft (void);Sendif!_STDC_void far * _Cdecl farcalloc(unsigned long nunits, unsigned longunitsz);unsigned long _Cdecl farcoreleft(void):void _Cdecl farfree (void far *block);void _Cdecl free(void *block);voidvoidvoid*_Cdecl malloc*_Cdecl realloc(size_t size);(void *block, sizet*_