电子系统设计完整版

data_count[2]=cut/100; data_count[3]=cut0/10; data_count[4]=cut; fuzhi(); }

/*************************************************************************/ /***********************************函数功能:乘法运算********************/ /**********************************************************************/ void cheng() {

count1 =data_qian[4]*10000 + data_qian[3]*1000 + data_qian[2]*100 + data_qian[1]*10 + data_qian[0]*1;

count2 =data_hou[4]*10000 + data_hou[3]*1000 + data_hou[2]*100 + data_hou[1]*10 + data_hou[0]*1; multiply = count1 * count2; data_count[0]=multiply/10000; data_count[1]=multiply/1000; data_count[2]=multiply/100; data_count[3]=multiply0/10; data_count[4]=multiply; fuzhi(); }

/***************************************************************************/ /***********************************函数功能:除法运算*************************/ /*****************************************************************************/ void chu() {

count1 =data_qian[4]*10000 + data_qian[3]*1000 + data_qian[2]*100 + data_qian[1]*10 + data_qian[0]*1;

count2 =data_hou[4]*10000 + data_hou[3]*1000 + data_hou[2]*100 + data_hou[1]*10 + data_hou[0]*1; divide = count1 / count2;

divide_1=count1%count2; //最多有四位余数 if(divide_1==0 && mn==0) {

data_count[0]=divide/10000; data_count[1]=divide/1000; data_count[2]=divide/100; data_count[3]=divide0/10; data_count[4]=divide; } else

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{

mn=0; if( (((count1*10)/count2)!=0) && (((count1*100)/count2)==0) ) {

data_count[0]=divide/1000; data_count[1]=divide/100; data_count[2]=divide0/10; data_count[3]=divide; x=2;

data_count[4]=((count1*10)/count2); } else if( (((count1*10)/count2)!=0) || (((count1*100)/count2)!=0) ) {

data_count[0]=divide/100; data_count[1]=divide0/10; data_count[2]=divide; x=3;

data_count[3]=((count1*10)/count2); data_count[4]=((count1*100)/count2); } else {

data_count[0]=divide/10000; data_count[1]=divide/1000; data_count[2]=divide/100; data_count[3]=divide0/10; data_count[4]=divide; } } fuzhi(); }

/************************************************************************/ /***********************************函数功能:延时程序1**********************/ /**************************************************************************/ void Delay(uint masd) {

uchar j;

while(masd--) {

for(j=0;j<30;j++); }

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}

/***********************************函数功能:延时程序2**************/ void DelayMS(uint ms) {

uchar t; while(ms--) {

for(t=0;t<120;t++); } }

/***************************************************************************/ /**************************************************************************/ /***********************************************************************/ /******************函数功能：键盘扫描**************************/

/****************************************************************************/ void Keys_Scan() {

uchar Tmp; P1 = 0x0f; DelayMS(1);

Tmp = P1 ^ 0x0f; switch(Tmp) {

case 1: KeyNO = 0; break; case 2: KeyNO = 1; break; case 4: KeyNO = 2; break; case 8: KeyNO = 3; break; default: KeyNO = 16; }

P1 = 0xf0; DelayMS(1);

Tmp = P1 >> 4 ^ 0x0f; switch(Tmp) {

case 1: KeyNO += 0; break; case 2: KeyNO += 4; break; case 4: KeyNO += 8; break; case 8: KeyNO += 12; } }

/*************************************************************************/ /***********函数功能:控制输入数据的显示（先按下的是最高位，以此类推）*********/

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/******************************************************************/ void keybord(uchar a) {

if(asd==0) {

data_use[4]=0; data_use[3]=0; data_use[2]=0; data_use[1]=0; data_use[0]=a; asd=1; } else if(asd==1) {

data_use[1]=data_use[0]; data_use[0]=a; asd=2; } else if(asd==2) {

data_use[2]=data_use[1]; data_use[1]=data_use[0]; data_use[0]=a; asd=3; } else if(asd==3) {

data_use[3]=data_use[2]; data_use[2]=data_use[1]; data_use[1]=data_use[0]; data_use[0]=a; asd=0; } }

/***********************************************************************/ /***********************************************************************/

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