msp430计算器设计

1、#include <> double r;#include ""#define RS_1 P3OUT|=BIT0 #define RS_0 P3OUT&=BIT0 #define RW_1 P3OUT|=BIT1 #define RW_0 P3OUT&=BIT1 #define E_1 P3OUT|=BIT2 #define E_0 P3OUT&=BIT2 #define DATA P4OUT #define data_dir P4DIR#define KEYDIR P5DIR#define KEYOUT P5OUT#define KEY

2、IN P5IN#define led P2OUT#define LED1 P2DIR=0XFF; #define uchar unsigned char #define uint unsigned intchar table116="1"char table216=' ' char flag;int flag1;/* 延时 */void delay(void) unsigned int i,j; for(i=0;i<50;i+) for(j=0;j<10;j+) J/* 消抖延时 */void delay_key(void)int i,j; fo

3、r(i=0;i<500;i+) for(j=0;j<100;j+) void delayms(uchar ms)int i,j;for(i=0;i<ms;i+) for(j=0;j<157;j+);int key_column_scan() int a;P5DIR = 0xff;P5OUT = 0x0f;P5DIR = 0X00; a = P5IN; switch(a)case 0x8f:return 4;case 0x4f:return 3;case 0x2f:return 2;case 0x1f:return 1;int key_line_scan()int a,c

4、olumn,key=-1,line;P5DIR = 0xff;P5OUT = 0xf0;P5DIR = 0X00;a = P5IN;if(a!=0xf0)column = key_column_scan();switch(a)case 0xf8:line=4;break;case 0xf4:line=3;break;case 0xf2:line=2;break;case 0xf1:line=1;break; key=(line-1)*4+column;delay_key(); ;table1+i='.'break;elsewrite_data(')');tabl

5、e1+i=')'break;case 15:write_data('=');table1+i='='break;case 16: if(flag=0)write_com(0x80+i-1);i-; else WDTCTL=0X00;if(table1i='=')cal(table1);sprintf(table2,"%lf",r);lcd_string(1,6,table2);break; break;case 5:write_data('4');table1+i='4'brea

6、k; case 6:write_data('5');table1+i='5'break; case 7:write_data('6');table1+i='6'break; case 8:if(flag=0)write_data('#');table1+i='#'break;else write_data('A');table1+i='A'break; case 9:write_data('1');table1+i='1'break;

7、case 10:write_data('2');table1+i='2'break; case 11:write_data('3');table1+i='3'break; case 12:if(flag=0)lcd_string(1,0,"shift ");flag=1;write_com(0x80+i);break;else lcd_string(1,0,"");write_com(0x80+i);flag=0;break; case 13:if(flag=0)write_data(

8、9;0');table1+i='0'break;else write_data('(');table1+i='('break; case 14:if(flag=0)write_data('.');table1+i='.'break;else write_data(')');table1+i=')'break; case 15:write_data('=');table1+i='='break; case 16:if(flag=0)write_c

9、om(0x80+i-1);i-;else WDTCTL=0X00; if(table1i='=')cal(table1);sprintf(table2,"%g",r);lcd_string(1,6,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=*/#include<>#include<>#include<>void cal(char a)int i=1,j,k,m,cnt=0,t1=0,t2=0,t3=0;char nibo20=&

10、#39;0',zhan215='0'1=x;2=+cnt;2; nibot1+1='0' m=i; break; zhan3+t3=num->datam.d1;else if(niboj='+') zhan3t3-1=zhan3t3-1+zhan3t3; t3-;else if(niboj='-') zhan3t3-1=zhan3t3-1-zhan3t3; t3-;else if(niboj='*') zhan3t3-1=zhan3t3-1*zhan3t3; t3-;else if(niboj=

11、9;/') zhan3t3-1=zhan3t3-1/zhan3t3; t3-;else if(n iboj='A') zhan3t3-1=pow(zhan3t3-1,zhan3t3); t3-;else if(niboj='#') zhan3t3=sqrt(zhan3t3);j+;r=zhan3t3;/*memory management functions and variables.Copyright (c) Borland International 1987,1988 All Rights Reserved.*/#if _STDC_#define

12、 _Cdecl#else#define _Cdecl cdecl#endif#ifndef _STDDEF#define _STDDEF#ifndef _PTRDIFF_T#define _PTRDIFF_T#if defined(_LARGE_) | defined(_HUGE_) | d typedef long ptrdiff_t;#elsetypedef int ptrdiff_t;#endif#endif#ifndef _SIZE_T#define _SIZE_Ttypedef unsigned size_t;#endif#endif#ifndef NULL#if defined(_

13、TINY_) | defined(_SMALL_) | defined(_MEDIUM_) #define NULL#else#define NULL#endif0L#endifint _Cdecl brk*_Cdecl callocvoid(void *addr);(size_t nitems, size_t size);#if defined(_COMPACT_) | defined(_LARGE_) | defined(_HUGE_) unsigned long _Cdecl coreleft#elseunsigned _Cdecl coreleft #endif(void);(void);void_Cdecl free(void *block);void*_Cdecl malloc(size_t size);void *_Cdecl realloc (void *block, size_t size);void*_Cdecl sbrk(int incr);#if !_STDC_void far * _Cdecl farcalloc(unsigned long nunits, unsigned