51單片機計算器無法仿真成功求各位大神指導

ID:169921 · 發表于 2017-3-11 18:05

在lcd1602中顯示不出來，連初始化的0都顯示不出來不知道是程序有問題還是仿真圖有問題，各位大神幫幫忙看看困擾好久沒人指導很難受睡不著

#include<reg52.h>
sbit key0_in = P3^4;
sbit key1_in = P3^5;
sbit key2_in = P3^6;
sbit key3_in = P3^7;
sbit key0_out = P3^0;
sbit key1_out = P3^1;
sbit key2_out = P3^2;
sbit key3_out = P3^3;
unsigned char code KeyCodeMap[4][4] = { //矩陣按鍵編號到標準鍵盤鍵碼的映射表
{ '1', '2', '3', 0x26 }, //數字鍵1、數字鍵2、數字鍵3、向上鍵
{ '4', '5', '6', 0x25 }, //數字鍵4、數字鍵5、數字鍵6、向左鍵
{ '7', '8', '9', 0x28 }, //數字鍵7、數字鍵8、數字鍵9、向下鍵
{ '0', 0x1B, 0x0D, 0x27 } //數字鍵0、ESC鍵、回車鍵、向右鍵
};
unsigned char pdata KeySta[4][4] = { //全部矩陣按鍵的當前狀態
{1, 1, 1, 1}, {1, 1, 1, 1}, {1, 1, 1, 1}, {1, 1, 1, 1}
};
extern unsigned char zfc_date(unsigned char *zfc,signed long date);
extern void numkeyaction(unsigned char n);
extern void operkeyaction(unsigned char type);
extern void reset();
extern void getresult();
extern void lcdshowdate(unsigned char x,unsigned char y,unsigned char *zfc);
void keyaction(unsigned char keycode) //加減乘除函數
{
if((keycode >= '0') && (keycode <= '9'))
{
numkeyaction(keycode -'0');
}
if(keycode == 0x26)
{
operkeyaction(0);
}
else if(keycode == 0x28)
{
operkeyaction(1);
}
else if(keycode == 0x25)
{
operkeyaction(2);
}
else if(keycode == 0x27)
{
operkeyaction(3);
}
else if(keycode == 0x0D)
{
getresult();
}
else if(keycode == 0x1B)
{
reset();
lcdshowdate(15,1,"0");
}
}
void keydriver() //按鍵掃描
{
unsigned char i;
unsigned char j;
static unsigned char backup[4][4]=
{
{1,1,1,1},{1,1,1,1},{1,1,1,1},{1,1,1,1}
};
for(i=0;i<4;i++)
{
for(j=0;j<4;j++)
{
if(backup[i][j]!= KeySta[i][j])
{
if(KeySta[i][j]!= 0)
{
keyaction(KeyCodeMap[i][j]);
}
backup[i][j] = KeySta[i][j];
}
}
}
}
void keyscanf()
{
unsigned char i;
static unsigned char keyout=0;
static unsigned char keybuf[4][4]={
{0xff,0xff,0xff,0xff},{0xff,0xff,0xff,0xff},{0xff,0xff,0xff,0xff},{0xff,0xff,0xff,0xff}
};
keybuf[keyout][0]= (keybuf[keyout][0])<< 1 | key0_in;
keybuf[keyout][1]= (keybuf[keyout][1])<< 1 | key1_in;
keybuf[keyout][2]= (keybuf[keyout][2])<< 1 | key2_in;
keybuf[keyout][3]= (keybuf[keyout][3])<< 1 | key3_in;
for(i=0;i<4;i++)
{
if((keybuf[keyout][i] & 0x0f )==0x00)
{
KeySta[keyout][i] = 0;
}
else if ((keybuf[keyout][i] & 0x0f) == 0x0f)
{
KeySta[keyout][i] = 1;
}
}
keyout++;
keyout &= 0x03;
switch (keyout)
{
case 0: key3_out =1; key0_out =0; break;
case 1: key0_out =1; key1_out =0; break;
case 2: key1_out =1; key2_out =0; break;
case 3: key2_out =1; key3_out =0; break;
default: break;
}
}
/****************************************************lcd配置*******************************************************//
#include<reg52.h>
#define lcddb P0
sbit rw=P2^1;
sbit rs=P2^0;
sbit en=P2^2;
void delay(unsigned int z)
{
unsigned int x,y;
for(x=z;x>0;x--)
for(y=110;y>0;y--);
}
void lcdwriteready() //檢測是否忙狀態
{
unsigned char zfc;
lcddb=0xff;
rw=1;
rs=0;
do
{
en=1;
zfc=lcddb;
en=0;
}
while(zfc & 0x80);
}
void lcdwritecom(unsigned char com) //寫指令
{
lcdwriteready();
rs=0;
rw=0;
lcddb=com;
delay(10);
en=1;
delay(10);
en=0;
delay(10);
}
void lcdwritedate(unsigned char date) //寫數據
{
lcdwriteready();
rs=1;
rw=0;
lcddb=date;
delay(10);
en=1;
delay(10);
en=0;
delay(10);
}
void lcdInit() //初始化lcd
{
lcdwritecom(0x01);
lcdwritecom(0x38);
lcdwritecom(0x0C);
lcdwritecom(0x06);
}
void lcd_add(unsigned char x,unsigned char y) //設置lcd輸入起始地址
{
unsigned char add;
if(y==0)
add = 0x00 + x;
else
add = 0x40 + x;
lcdwritecom(add|0x80);
}
void lcdshowdate(unsigned char x,unsigned char y,unsigned char *zfc) //將轉換的字符指針傳入lcd
{
lcd_add(x,y);
while(*zfc != '\0')
{
lcdwritedate(*zfc++);
}
}
void lcdareaclear(unsigned char x,unsigned char y,unsigned char changdu) //局部清除
{
lcd_add(x,y);
while(changdu--)
{
lcdwritedate(' ');
}
}
void lcdallclear() //全屏清除
{
lcdwritecom(0x01);
}
/*************************************************main.c函數***********************************************************/
#include<reg52.h>
unsigned char num1=0;
unsigned char num2=0;
unsigned char step=0;
unsigned char oper = 0;
unsigned char T0RH=0;
unsigned char T0RL=0;
unsigned char result=0;
void ConfigTimer0(unsigned int ms);
extern void lcdInit();
extern void lcdshowdate(unsigned char x,unsigned char y,unsigned char *zfc); //將轉換的字符指針傳入lcd
extern void lcdareaclear(unsigned char x,unsigned char y,unsigned char changdu); //局部清除
extern void lcdallclear(); //全屏清除
extern void keyaction(unsigned char keycode);
extern void keydriver();
extern void keyscanf();
void main()
{
EA = 1; //開總中斷
ConfigTimer0(1); //配置T0定時1ms
lcdInit(); //初始化液晶
lcdshowdate(15, 1, "0"); //初始顯示一個數字0
while (1)
{
keydriver(); //調用按鍵驅動
}
}
unsigned char zfc_date(unsigned char *zfc,signed long date) //數字轉字符串
{
signed long i = 0;
unsigned char changdu = 0;
unsigned char buf[12];
if(date < 0)
{
date = -date;
*zfc++ = '-';
changdu++;
}
do
{
buf[i++]= date %10;
date /= 10;
}
while(date > 0);
changdu += i;
while(i-- > 0)
{
*zfc++ = buf[i] + '0';
}
*zfc = '\0';
return changdu;
}
void showoper(unsigned char y, unsigned char type) //加減乘除函數
{
switch(type)
{
case 0: lcdshowdate( 0 , y , "+");
case 1: lcdshowdate( 0 , y , "-");
case 2: lcdshowdate( 0 , y , "*");
case 3: lcdshowdate( 0 , y , "/");
default: break; //
}
}
void reset() //清除
{
num1 = 0;
num2 = 0;
step = 0;
lcdallclear();
}
void numkeyaction(unsigned char n) //輸入
{
unsigned char changdu = 0;
unsigned char zfc[12];
if(step > 1)
{
reset();
}
if(step == 0)
{
num1 = num1*10 + n;
changdu = zfc_date(zfc,num1); //
lcdshowdate(16-changdu,1,zfc);
}
else
{
num2 = num2*10 + n;
changdu = zfc_date(zfc,num2); //
lcdshowdate(16-changdu,1,zfc);
}
}
void operkeyaction(unsigned char type) //輸入
{
unsigned char changdu;
unsigned char zfc[12];
if(step == 0)
{
changdu = zfc_date(zfc,num1);
lcdareaclear(0,0,16-changdu);
lcdshowdate(16-changdu,0,zfc);
showoper(1,type);
lcdareaclear(1,1,14);
lcdshowdate(15,1,"0"); //
oper = type; //
step = 1;
}
}
void getresult() //結果
{
unsigned char changdu;
unsigned char zfc[12];
if(step == 1)
{
step = 2;
switch(oper)
{
case 0: result = num1 + num2; break;
case 1: result = num1 - num2; break;
case 2: result = num1 * num2; break;
case 3: result = num1 / num2; break;
default: break;
}
changdu = zfc_date(zfc,num2);
showoper(0,oper);
lcdareaclear(1,0,16-changdu-1);
lcdshowdate(16-changdu,0,zfc);
changdu = zfc_date(zfc,result);
lcdshowdate(0,1,"=");
lcdareaclear(1,1,16-changdu-1);
lcdshowdate(16-changdu,1,zfc);
}
}
/* 配置并啟動T0，ms-T0定時時間 */
void ConfigTimer0(unsigned int ms)
{
unsigned long tmp; //臨時變量
tmp = 11059200 / 12; //定時器計數頻率
tmp = (tmp * ms) / 1000; //計算所需的計數值
tmp = 65536 - tmp; //計算定時器重載值
tmp = tmp + 12; //補償中斷響應延時造成的誤差
T0RH = (unsigned char)(tmp>>8); //定時器重載值拆分為高低字節
T0RL = (unsigned char)tmp;
TMOD &= 0xF0; //清零T0的控制位
TMOD |= 0x01; //配置T0為模式1
TH0 = T0RH; //加載T0重載值
TL0 = T0RL;
ET0 = 1; //使能T0中斷
TR0 = 1; //啟動T0
}
/* T0中斷服務函數，執行按鍵掃描 */
void InterruptTimer0() interrupt 1
{
TH0 = T0RH; //重新加載重載值
TL0 = T0RL;
keyscanf(); //按鍵掃描
}