基于511602的可连续运算计算器.docx

1、基于511602的可连续运算计算器#include #include #include #include #include #include LCD1602.h#define uchar unsigned charuchar k=0,result1;void shortdelay(uchar i)/短延时 for(;i0;i-);/长延时void longdelay(uint i) uint j; for(;i0;i-) for(j=100;j0;j-);/延时程序void delay(int i)int j; for(;i0;i-) for(j=0;j100;j+);/初试状态void io

2、_init()P1=0xff;/?-键盘扫描部分-/ unsigned char key_scan() unsigned char key; unsigned char temp; uint flag; io_init(); P1=0xf0; flag=0;loop: temp=P10xf0; while(temp) P1=0xfe; delay(1); if(P1&0xfe)!=0xfe) switch(P1) case 0xee: key=0x11;flag=1;break;/读7键和值 case 0xde: key=0x12;flag=1;break; case 0xbe: key=0x

3、13;flag=1;break; case 0x7e: key=0x14;flag=1;break;/读除键的值 if(flag) goto exit; else P1=0xfd; delay(1); if(P1&0xfd)!=0xfd) switch(P1) case 0xed: key=0x21;flag=1;break; case 0xdd: key=0x22;flag=1;break; case 0xbd: key=0x23;flag=1;break; case 0x7d: key=0x24;flag=1;break; /读4到乘的键值 if(flag) goto exit; else

4、 P1=0xfb; delay(1); if(P1&0xfb)!=0xfb) switch(P1) case 0xeb: key=0x31;flag=1;break; case 0xdb: key=0x32;flag=1;break; case 0xbb: key=0x33;flag=1;break; case 0x7b: key=0x34;flag=1;break;/读1到减的键值 if(flag) goto exit; else P1=0xf7; delay(1); if(P1&0xf7)!=0xf7) switch(P1) case 0xe7: key=0x41;flag=1;break

5、;/后退 case 0xd7: key=0x42;flag=1;break;/0 case 0xb7: key=0x43;flag=1;break;/等于 case 0x77: key=0x44;flag=1;break;/加 exit: return key; if(temp=0) goto loop; /-键盘扫描完-/-显示初始化?-/P0口初始化void initpindata(bit i) if(i=1) pindata=0xff; else pindata=0X00;/寄存器选择信号void setRS(bit i) if(i=1) pinRS=1; else pinRS=0;/读

6、写操作控制void setRW(bit i) if(i=1) pinRW=1; else pinRW=0;/使能信号void setE(bit i) if(i=1) pinE=1; else pinE=0;/读BF以及AC的值uint read_BF_AC() uint temp; initpindata(1); setRS(0); setRW(1); setE(1); shortdelay(1); temp=pindata; shortdelay(10); setE(0); return(temp); /判忙bit statuscheck() return(bit)(read_BF_AC()

7、&0x80);/写指令函数void writeinstruc(uint instruc) while(statuscheck(); initpindata(0); setRS(0); setRW(0); setE(0); pindata=instruc; /short delay(1); setE(1); shortdelay(10); setE(0);/写数据到RAMvoid writedata(uint data1) initpindata(0); setRS(1); setRW(0); setE(0); pindata=data1; setE(1); shortdelay(10); se

8、tE(0);/从RAM中读数据函数uint readdata(void) uint temp; initpindata(1); setRS(1); setRW(1); setE(1); shortdelay(1); temp=pindata; shortdelay(10); setE(0); return(temp);/显示程序 X为行号，Y为列号，date为要显示的数据void dispcharacter(int x,uint y,uint data1) uint temp; while(statuscheck(); temp=y&0x0f; x&=0x01; if(x) temp|=0x4

9、0; setDDRAM_Add(temp); writedata(data1);/ writedata(data1);/LCD复位函数void LCDreset() clearscreen(); cursorreturn();/LCD初始化void initLCD() LCDreset(); inputmode(0x06);/增量方式，不移位 dispcontrol(0x0c);/显示开，光标关，闪烁关 functionset(0x38);/8位，2行，5*7/-准备工作完成-/-计算器-/ compute(char key1,i) signed char m,n,c,act; long in

10、t num1,num2,result; signed char str44=7,8,9,/, 4,5,6,*, 1,2,3,-, c,0,=,+; signed char str111,string12; m=(key1&0xf0); m=m/16; m=m-1; n=key1&0x0f; n=n-1; c=strmn; sprintf(string1,%c,c); strcat(str1,string1); if(c=+)|(c=-)|(c=*)|(c=/) act=c; num1=atoi(str1); memset(str1,0,11); memset(string1,0,2); if(

11、c=) num2=atoi(str1); switch(act) case+: if(k=0) result=num1+num2;k+;break; else result+=num2;k+;break; case-: if(k=0) result=num1-num2;k+;break; else result-=num2;k+;break; case*: if(k=0) result=num1*num2;k+;break; else result*=num2;k+;break; case/: if(k=0) result=num1/num2;k+;break; else result/=nu

12、m2;k+;break; if(c=c)act=0;num1=str10;num1=str18;memset(str1,0,11);memset(string1,0,2);num1=str10;num1=str18;k=0; longdelay(350); switch(key1) /显示部分 case 0x11: dispcharacter(0,i,7);i+;break; case 0x12: dispcharacter(0,i,8);i+; break; case 0x13: dispcharacter(0,i,9);i+; break; case 0x14: dispcharacter

13、(0,i,/);i+;break; case 0x21: dispcharacter(0,i,4);i+;break; case 0x22: dispcharacter(0,i,5);i+;break; case 0x23: dispcharacter(0,i,6);i+;break; case 0x24: dispcharacter(0,i,*);i+;break; case 0x31: dispcharacter(0,i,1);i+;break; case 0x32: dispcharacter(0,i,2);i+;break; case 0x33: dispcharacter(0,i,3

14、);i+;break; case 0x34: dispcharacter(0,i,-);i+;break; case 0x41: clearscreen(); break; case 0x42: dispcharacter(0,i,0);i+;break; case 0x43: dispcharacter(0,i,=);i+; m=result/10000; result1=result%10000; if(m!=0|result=0) n=0; m=m+0; dispcharacter(0,i,m);i+; m=result1/1000; result1=result1%1000; if(m

15、!=0|n=0) m=m+0; n=0; dispcharacter(0,i,m);i+; m=result1/100; result1=result1%100; if(m!=0|n=0) m=m+0; n=0; dispcharacter(0,i,m);i+; m=result1/10; result1=result1%10; if(m!=0|n=0) m=m+0; n=0; dispcharacter(0,i,m);i+; m=result1; if(m!=0|n=0) m=m+0; dispcharacter(0,i,m);i+;break; case 0x44: dispcharact

16、er(0,i,+);i+;break; return(i); /-/-主函数-/ void main() char key1,i; start:initpindata(0); P2=0X00; initLCD(); i=0; scan:key1=key_scan(); i=compute(key1,i); if(key1=0x41) goto start; else goto scan; #define uint unsigned int #define uchar unsigned charsbit pinRS=P20;sbit pinRW=P21;sbit pinE=P22;#define

17、 pindata P0#define clearscreen() writeinstruc(0x01)#define cursorreturn() writeinstruc(0x02)#define inputmode(temp) writeinstruc(temp)/temp取值如下：/0x04:减量方式，不移位/0x05:减量方式，移位/0x06:增量方式，不移位/0x07:增量方式，移位#define dispcontrol(temp) writeinstruc(temp)/temp取值如下：/0x08:显示关，光标关，闪烁关/0x0c:显示关，光标关，闪烁关/0x0d：显示开，光标关，

18、闪烁开/0x0e:显示开，光标开，闪烁关/0x0f:显示开，光标开，闪烁开#define dispshift(temp) writeinstruc(temp)/temp取值如下：/0x10:光标左移/0x14:光标右移/0x18:显示整体左移/0x1c:显示整体右移#define functionset(temp) writeinstruc(temp)/temp取值如下：/0x20:4位，1行，5*7/0x24:4位，1行，5*10/0x28:4位，2行，5*7/0x2c:4位，2行，5*10/0x30:8位，1行，5*7/0x34:8位，1行，5*10/0x38:8位，2行，5*7/0x3c

19、:8位，2行，5*10#define setCGRAM_Add(address) writeinstruc(0x40|address)#define setDDRAM_Add(address) writeinstruc(0x80|address)/短延时/void shortdelay(uchar i);/长延时/void longdelay(uint i);/P2口初始化/void initP2(bit i);/寄存器选择信号/void setRS(bit i);/读写操作控制/void setRW(bit i);/使能信号/void setE(bit i);/读BF以及AC的值/uint read_BF_AC();/判忙/bit statuscheck();/写指令函数/void writeinstruc(uint instruc);/写数据到RAM/void writedata(uint data1);/从RAM中读数据函数/uint readdata(void);/显示程序 X为行号，Y为列号，date为要显示的数据/void dispcharacter(int x,uint y,uint data1);/LCD复位函数/void LCDreset();