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標題: KEIL編譯時大量未定義是啥意思大哥們求救！ [打印本頁]

作者: oscar1212 時間: 2020-5-20 19:17
標題: KEIL編譯時大量未定義是啥意思大哥們求救！
本人純純的小白，設計做這個在網上找的程序不知道什么原因編譯時引腳全是未定義這程序哪里錯了有無老哥解釋下

#include <AT89X52.h>
#define UCHAR UNSIGNED CHAR
#define UINT UNSIGNED INT
#define DAC0832 P1
unsigned char codediscode[] = {0x03f,0x06,0x5b,0x4f,0x66,0x6d, 0x7d,0x07,0x7f,0x6f,0x76}; /* ??????????? */
unsigned char disbuf[4];
sbit wr1=P3^6;
sbit rd1=P3^7;
sbit key1=P2^0;
sbit key2=P2^1;
sbit key3=P2^2;
sbit key4=P2^3;
void delay(void)    /*???????*/
{
  uchar x;
  for(x=0;x<20;x++);
}
void hexbcd(uint a)  /*??DA??????????????????????? */  /*  a?????DA???????  */
{
  float b;
  int c;
  b =10.00; /*2209.40000000/256.00000000;*/ /*????????????a=50??????????5V????a=150??????????15V??????????λ?????????????????10??????*/
  c = b*a;
  disbuf[3] = c/1000;
  disbuf[2] = c%1000/100;
  disbuf[1] = c%100/10;
  disbuf[0] = c%10;
}
void key(void) /*??????????*/
{    /* key1??+0.1V a+=1 */
   /* key2??+1V    a+=10 */
  int a; /* key3??-1V    a-=10 */
  if(key1) /* key4??+0.1V a-=1 */
  {
if(key2)
{
   if(key3)
   {
      if(key4);
      else
      {

   while(key4 == 0);
   a=4;
      }
   }
   else
   {
   while(key3 == 0);
  a=3;
   }
}
else
{
   while(key2 == 0);
a=2;
}
  }
else
  {
while(key1 == 0);
a=1;
  }
  if(a==1)    DAC0832 += 1;
  else if(a==2) DAC0832 += 10;
  else if(a==3) DAC0832 -= 10;
  else if(a==4) DAC0832 -= 1;
  else       DAC0832 = DAC0832;
  if(DAC0832<0) /* ????DA???????????????????????????????????????Χ4.5V--16V */
DAC0832 = 0;
  else if(DAC0832>310)
DAC0832 = 310;
  else;
}
void display(void) /* ????????????3λ??С???? */
{
  P0 = discode[disbuf[0]];
  P2_7 = 0;
  P2_6 = 1;
  P2_5 = 1;
  P2_4 = 1;
  delay();
  P2_7 = 1;
  P2_6 = 1;
  P2_5 = 1;
  P2_4 = 1;
  P0 = discode[disbuf[1]];
  P2_7 = 1;
  P2_6 = 0;
  P2_5 = 1;
  P2_4 = 1;
  delay();
  P2_7 = 1;
  P2_6 = 1;
  P2_5 = 1;
  P2_4 = 1;
  P0 = discode[disbuf[2]]+0x80;
  P2_7 = 1;
  P2_6 = 1;
  P2_5 = 0;
  P2_4 = 1;
  delay();
  P2_7 = 1;
  P2_6 = 1;
  P2_5 = 1;
  P2_4 = 1;
  P0 = discode[disbuf[3]];
  P2_7 = 1;
  P2_6 = 1;
  P2_5 = 1;
  P2_4 = 0;
  delay();
  P2_7 = 1;
  P2_6 = 1;
  P2_5 = 1;
  P2_4 = 1;
}
void main(void)    /* ?????? */
{
  wr1 = 0;    /* DA????????????Ч */
  rd1 = 0;    /* DA????????????Ч */
  DAC0832 = 50;    /* ???????????????????????5V */
while(1)
  {
key();       /* ???e??????? */
hexbcd(DAC0832);  /* ??????????? */
display(); /* ??????????? */
  }
}

作者: mffhxa 時間: 2020-5-20 22:14
運行了一下樓主的程序，錯誤有3處。2個定義要用小寫。1個code后面要加空格。
#define uchar unsigned char
#define uint unsigned int
#define DAC0832 P1
unsigned char code discode[] = {0x03f,0x06,0x5b,0x4f,0x66,0x6d, 0x7d,0x07,0x7f,0x6f,0x76}; /* ??????????? */

作者: 763900682 時間: 2020-5-20 23:56
2個定義要用小寫。1個code后面要加空格。

作者: xuyaqi 時間: 2020-5-21 06:48
編譯器未找到 AT89X52.h 這個頭文件造成，改成 reg51.h 這個通用的即可。

作者: w254489035 時間: 2020-5-21 08:27
沒有添加頭文件

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